Distributed tracing

OpenShift Container Platform 4.14

Configuring and using distributed tracing in OpenShift Container Platform

Red Hat OpenShift Documentation Team

Abstract

Use distributed tracing to store, analyze, and visualize microservices transactions passing through distributed systems in OpenShift Container Platform.

Chapter 1. Release notes for the Red Hat OpenShift distributed tracing platform

1.1. Distributed tracing overview

As a service owner, you can use distributed tracing to instrument your services to gather insights into your service architecture. You can use the Red Hat OpenShift distributed tracing platform for monitoring, network profiling, and troubleshooting the interaction between components in modern, cloud-native, microservices-based applications.

With the distributed tracing platform, you can perform the following functions:

Monitor distributed transactions
Optimize performance and latency
Perform root cause analysis

You can use the Red Hat OpenShift distributed tracing platform (Tempo) in combination with the Red Hat build of OpenTelemetry.

Note

Only supported features are documented. Undocumented features are currently unsupported. If you need assistance with a feature, contact Red Hat’s support.

1.2. Release notes for Red Hat OpenShift distributed tracing platform 3.3.1

The Red Hat OpenShift distributed tracing platform 3.3.1 is a maintenance release with no changes because the Red Hat OpenShift distributed tracing platform is bundled with the Red Hat build of OpenTelemetry that is released with a bug fix.

This release of the Red Hat OpenShift distributed tracing platform includes the Red Hat OpenShift distributed tracing platform (Tempo) and the deprecated Red Hat OpenShift distributed tracing platform (Jaeger).

1.2.1. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

The Red Hat OpenShift distributed tracing platform (Tempo) 3.3.1 is based on the open source Grafana Tempo 2.5.0.

1.2.1.1. Known issues

There is currently a known issue:

Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.2.2. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

The Red Hat OpenShift distributed tracing platform (Jaeger) 3.3.1 is based on the open source Jaeger release 1.57.0.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.2.2.1. Support for the OpenShift Elasticsearch Operator

The Red Hat OpenShift distributed tracing platform (Jaeger) 3.3.1 is supported for use with the OpenShift Elasticsearch Operator 5.6, 5.7, and 5.8.

1.2.2.2. Deprecated functionality

In the Red Hat OpenShift distributed tracing platform 3.3.1, Jaeger and support for Elasticsearch remain deprecated, and both are planned to be removed in a future release. Red Hat will provide support for these components and fixes for CVEs and bugs with critical and higher severity during the current release lifecycle, but these components will no longer receive feature enhancements. The Tempo Operator and the Red Hat build of OpenTelemetry are the preferred Operators for distributed tracing collection and storage. Users must adopt the OpenTelemetry and Tempo distributed tracing stack because it is the stack to be enhanced going forward.

In the Red Hat OpenShift distributed tracing platform 3.3.1, the Jaeger agent is deprecated and planned to be removed in the following release. Red Hat will provide bug fixes and support for the Jaeger agent during the current release lifecycle, but the Jaeger agent will no longer receive enhancements and will be removed. The OpenTelemetry Collector provided by the Red Hat build of OpenTelemetry is the preferred Operator for injecting the trace collector agent.

1.2.2.3. Known issues

There are currently known issues:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.3. Release notes for Red Hat OpenShift distributed tracing platform 3.3

1.3.1. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

The Red Hat OpenShift distributed tracing platform (Tempo) 3.3 is based on the open source Grafana Tempo 2.5.0.

1.3.1.1. New features and enhancements

This update introduces the following enhancements:

Support for securing the Jaeger UI and Jaeger APIs with the OpenShift OAuth Proxy. (TRACING-4108)
Support for using the service serving certificates, which are generated by OpenShift Container Platform, on ingestion APIs when multitenancy is disabled. (TRACING-3954)
Support for ingesting by using the OTLP/HTTP protocol when multitenancy is enabled. (TRACING-4171)
Support for the AWS S3 Secure Token authentication. (TRACING-4176)
Support for automatically reloading certificates. (TRACING-4185)
Support for configuring the duration for which service names are available for querying. (TRACING-4214)

1.3.1.2. Bug fixes

This update introduces the following bug fixes:

Before this update, storage certificate names did not support dots. With this update, storage certificate name can contain dots. (TRACING-4348)
Before this update, some users had to select a certificate when accessing the gateway route. With this update, there is no prompt to select a certificate. (TRACING-4431)
Before this update, the gateway component was not scalable. With this update, the gateway component is scalable. (TRACING-4497)
Before this update the Jaeger UI might fail with the 504 Gateway Time-out error when accessed via a route. With this update, users can specify route annotations for increasing timeout, such as haproxy.router.openshift.io/timeout: 3m, when querying large data sets. (TRACING-4511)

1.3.1.3. Known issues

There is currently a known issue:

Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.3.2. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

The Red Hat OpenShift distributed tracing platform (Jaeger) 3.3 is based on the open source Jaeger release 1.57.0.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.3.2.1. Support for the OpenShift Elasticsearch Operator

The Red Hat OpenShift distributed tracing platform (Jaeger) 3.3 is supported for use with the OpenShift Elasticsearch Operator 5.6, 5.7, and 5.8.

1.3.2.2. Deprecated functionality

In the Red Hat OpenShift distributed tracing platform 3.3, Jaeger and support for Elasticsearch remain deprecated, and both are planned to be removed in a future release. Red Hat will provide support for these components and fixes for CVEs and bugs with critical and higher severity during the current release lifecycle, but these components will no longer receive feature enhancements. The Tempo Operator and the Red Hat build of OpenTelemetry are the preferred Operators for distributed tracing collection and storage. Users must adopt the OpenTelemetry and Tempo distributed tracing stack because it is the stack to be enhanced going forward.

In the Red Hat OpenShift distributed tracing platform 3.3, the Jaeger agent is deprecated and planned to be removed in the following release. Red Hat will provide bug fixes and support for the Jaeger agent during the current release lifecycle, but the Jaeger agent will no longer receive enhancements and will be removed. The OpenTelemetry Collector provided by the Red Hat build of OpenTelemetry is the preferred Operator for injecting the trace collector agent.

1.3.2.3. Known issues

There are currently known issues:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.4. Release notes for Red Hat OpenShift distributed tracing platform 3.2.2

1.4.1. CVEs

This release fixes the following CVEs:

1.4.2. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

1.4.2.1. Bug fixes

This update introduces the following bug fix:

Before this update, secrets were perpetually generated on OpenShift Container Platform 4.16 because the operator tried to reconcile a new openshift.io/internal-registry-pull-secret-ref annotation for service accounts, causing a loop. With this update, the operator ignores this new annotation. (TRACING-4434)

1.4.2.2. Known issues

There is currently a known issue:

Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.4.3. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.4.3.1. Known issues

There is currently a known issue:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.5. Release notes for Red Hat OpenShift distributed tracing platform 3.2.1

1.5.1. CVEs

This release fixes CVE-2024-25062.

1.5.2. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

1.5.2.1. Known issues

There is currently a known issue:

Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.5.3. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.5.3.1. Known issues

There is currently a known issue:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.6. Release notes for Red Hat OpenShift distributed tracing platform 3.2

1.6.1. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

1.6.1.1. Technology Preview features

This update introduces the following Technology Preview feature:

Support for the Tempo monolithic deployment.

Important

The Tempo monolithic deployment is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

1.6.1.2. New features and enhancements

This update introduces the following enhancements:

Red Hat OpenShift distributed tracing platform (Tempo) 3.2 is based on the open source Grafana Tempo 2.4.1.
Allowing the overriding of resources per component.

1.6.1.3. Bug fixes

This update introduces the following bug fixes:

Before this update, the Jaeger UI only displayed services that sent traces in the previous 15 minutes. With this update, the availability of the service and operation names can be configured by using the following field: spec.template.queryFrontend.jaegerQuery.servicesQueryDuration. (TRACING-3139)
Before this update, the query-frontend pod might get stopped when out-of-memory (OOM) as a result of searching a large trace. With this update, resource limits can be set to prevent this issue. (TRACING-4009)

1.6.1.4. Known issues

There is currently a known issue:

Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.6.2. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.6.2.1. Support for OpenShift Elasticsearch Operator

Red Hat OpenShift distributed tracing platform (Jaeger) 3.2 is supported for use with the OpenShift Elasticsearch Operator 5.6, 5.7, and 5.8.

1.6.2.2. Deprecated functionality

In the Red Hat OpenShift distributed tracing platform 3.2, Jaeger and support for Elasticsearch remain deprecated, and both are planned to be removed in a future release. Red Hat will provide support for these components and fixes for CVEs and bugs with critical and higher severity during the current release lifecycle, but these components will no longer receive feature enhancements. The Tempo Operator and the Red Hat build of OpenTelemetry are the preferred Operators for distributed tracing collection and storage. Users must adopt the OpenTelemetry and Tempo distributed tracing stack because it is the stack to be enhanced going forward.

In the Red Hat OpenShift distributed tracing platform 3.2, the Jaeger agent is deprecated and planned to be removed in the following release. Red Hat will provide bug fixes and support for the Jaeger agent during the current release lifecycle, but the Jaeger agent will no longer receive enhancements and will be removed. The OpenTelemetry Collector provided by the Red Hat build of OpenTelemetry is the preferred Operator for injecting the trace collector agent.

1.6.2.3. New features and enhancements

This update introduces the following enhancements for the distributed tracing platform (Jaeger):

Red Hat OpenShift distributed tracing platform (Jaeger) 3.2 is based on the open source Jaeger release 1.57.0.

1.6.2.4. Known issues

There is currently a known issue:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.7. Release notes for Red Hat OpenShift distributed tracing platform 3.1.1

1.7.1. CVEs

This release fixes CVE-2023-39326.

1.7.2. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

1.7.2.1. Known issues

There are currently known issues:

Currently, when used with the Tempo Operator, the Jaeger UI only displays services that have sent traces in the last 15 minutes. For services that did not send traces in the last 15 minutes, traces are still stored but not displayed in the Jaeger UI. (TRACING-3139)
Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.7.3. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.7.3.1. Support for OpenShift Elasticsearch Operator

Red Hat OpenShift distributed tracing platform (Jaeger) 3.1.1 is supported for use with the OpenShift Elasticsearch Operator 5.6, 5.7, and 5.8.

1.7.3.2. Deprecated functionality

In the Red Hat OpenShift distributed tracing platform 3.1.1, Jaeger and support for Elasticsearch remain deprecated, and both are planned to be removed in a future release. Red Hat will provide critical and above CVE bug fixes and support for these components during the current release lifecycle, but these components will no longer receive feature enhancements.

In the Red Hat OpenShift distributed tracing platform 3.1.1, Tempo provided by the Tempo Operator and the OpenTelemetry Collector provided by the Red Hat build of OpenTelemetry are the preferred Operators for distributed tracing collection and storage. The OpenTelemetry and Tempo distributed tracing stack is to be adopted by all users because this will be the stack that will be enhanced going forward.

1.7.3.3. Known issues

There are currently known issues:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.8. Release notes for Red Hat OpenShift distributed tracing platform 3.1

1.8.1. Red Hat OpenShift distributed tracing platform (Tempo)

The Red Hat OpenShift distributed tracing platform (Tempo) is provided through the Tempo Operator.

1.8.1.1. New features and enhancements

This update introduces the following enhancements for the distributed tracing platform (Tempo):

Red Hat OpenShift distributed tracing platform (Tempo) 3.1 is based on the open source Grafana Tempo 2.3.1.
Support for cluster-wide proxy environments.
Support for TraceQL to Gateway component.

1.8.1.2. Bug fixes

This update introduces the following bug fixes for the distributed tracing platform (Tempo):

Before this update, when a TempoStack instance was created with the monitorTab enabled in OpenShift Container Platform 4.15, the required tempo-redmetrics-cluster-monitoring-view ClusterRoleBinding was not created. This update resolves the issue by fixing the Operator RBAC for the monitor tab when the Operator is deployed in an arbitrary namespace. (TRACING-3786)
Before this update, when a TempoStack instance was created on an OpenShift Container Platform cluster with only an IPv6 networking stack, the compactor and ingestor pods ran in the CrashLoopBackOff state, resulting in multiple errors. This update provides support for IPv6 clusters.(TRACING-3226)

1.8.1.3. Known issues

There are currently known issues:

Currently, when used with the Tempo Operator, the Jaeger UI only displays services that have sent traces in the last 15 minutes. For services that did not send traces in the last 15 minutes, traces are still stored but not displayed in the Jaeger UI. (TRACING-3139)
Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.8.2. Red Hat OpenShift distributed tracing platform (Jaeger)

The Red Hat OpenShift distributed tracing platform (Jaeger) is provided through the Red Hat OpenShift distributed tracing platform Operator.

Important

Jaeger does not use FIPS validated cryptographic modules.

1.8.2.1. Support for OpenShift Elasticsearch Operator

Red Hat OpenShift distributed tracing platform (Jaeger) 3.1 is supported for use with the OpenShift Elasticsearch Operator 5.6, 5.7, and 5.8.

1.8.2.2. Deprecated functionality

In the Red Hat OpenShift distributed tracing platform 3.1, Jaeger and support for Elasticsearch remain deprecated, and both are planned to be removed in a future release. Red Hat will provide critical and above CVE bug fixes and support for these components during the current release lifecycle, but these components will no longer receive feature enhancements.

In the Red Hat OpenShift distributed tracing platform 3.1, Tempo provided by the Tempo Operator and the OpenTelemetry Collector provided by the Red Hat build of OpenTelemetry are the preferred Operators for distributed tracing collection and storage. The OpenTelemetry and Tempo distributed tracing stack is to be adopted by all users because this will be the stack that will be enhanced going forward.

1.8.2.3. New features and enhancements

This update introduces the following enhancements for the distributed tracing platform (Jaeger):

Red Hat OpenShift distributed tracing platform (Jaeger) 3.1 is based on the open source Jaeger release 1.53.0.

1.8.2.4. Bug fixes

This update introduces the following bug fix for the distributed tracing platform (Jaeger):

Before this update, the connection target URL for the jaeger-agent container in the jager-query pod was overwritten with another namespace URL in OpenShift Container Platform 4.13. This was caused by a bug in the sidecar injection code in the jaeger-operator, causing nondeterministic jaeger-agent injection. With this update, the Operator prioritizes the Jaeger instance from the same namespace as the target deployment. (TRACING-3722)

1.8.2.5. Known issues

There are currently known issues:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.9. Release notes for Red Hat OpenShift distributed tracing platform 3.0

1.9.1. Component versions in the Red Hat OpenShift distributed tracing platform 3.0

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.51.0
Red Hat OpenShift distributed tracing platform (Tempo)	Tempo	2.3.0

1.9.2. Red Hat OpenShift distributed tracing platform (Jaeger)

1.9.2.1. Deprecated functionality

In the Red Hat OpenShift distributed tracing platform 3.0, Jaeger and support for Elasticsearch are deprecated, and both are planned to be removed in a future release. Red Hat will provide critical and above CVE bug fixes and support for these components during the current release lifecycle, but these components will no longer receive feature enhancements.

In the Red Hat OpenShift distributed tracing platform 3.0, Tempo provided by the Tempo Operator and the OpenTelemetry Collector provided by the Red Hat build of OpenTelemetry are the preferred Operators for distributed tracing collection and storage. The OpenTelemetry and Tempo distributed tracing stack is to be adopted by all users because this will be the stack that will be enhanced going forward.

1.9.2.2. New features and enhancements

This update introduces the following enhancements for the distributed tracing platform (Jaeger):

Support for the ARM architecture.
Support for cluster-wide proxy environments.

1.9.2.3. Bug fixes

This update introduces the following bug fix for the distributed tracing platform (Jaeger):

Before this update, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator used other images than relatedImages. This caused the ImagePullBackOff error in disconnected network environments when launching the jaeger pod because the oc adm catalog mirror command mirrors images specified in relatedImages. This update provides support for disconnected environments when using the oc adm catalog mirror CLI command. (TRACING-3546)

1.9.2.4. Known issues

There is currently a known issue:

Currently, Apache Spark is not supported.
Currently, the streaming deployment via AMQ/Kafka is not supported on the IBM Z and IBM Power architectures.

1.9.3. Red Hat OpenShift distributed tracing platform (Tempo)

1.9.3.1. New features and enhancements

This update introduces the following enhancements for the distributed tracing platform (Tempo):

Support for the ARM architecture.
Support for span request count, duration, and error count (RED) metrics. The metrics can be visualized in the Jaeger console deployed as part of Tempo or in the web console in the Observe menu.

1.9.3.2. Bug fixes

This update introduces the following bug fixes for the distributed tracing platform (Tempo):

Before this update, the TempoStack CRD was not accepting custom CA certificate despite the option to choose CA certificates. This update fixes support for the custom TLS CA option for connecting to object storage. (TRACING-3462)
Before this update, when mirroring the Red Hat OpenShift distributed tracing platform Operator images to a mirror registry for use in a disconnected cluster, the related Operator images for tempo, tempo-gateway, opa-openshift, and tempo-query were not mirrored. This update fixes support for disconnected environments when using the oc adm catalog mirror CLI command. (TRACING-3523)
Before this update, the query frontend service of the Red Hat OpenShift distributed tracing platform was using internal mTLS when gateway was not deployed. This caused endpoint failure errors. This update fixes mTLS when Gateway is not deployed. (TRACING-3510)

1.9.3.3. Known issues

There are currently known issues:

Currently, when used with the Tempo Operator, the Jaeger UI only displays services that have sent traces in the last 15 minutes. For services that did not send traces in the last 15 minutes, traces are still stored but not displayed in the Jaeger UI. (TRACING-3139)
Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)

1.10. Release notes for Red Hat OpenShift distributed tracing platform 2.9.2

1.10.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.9.2

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.47.0
Red Hat OpenShift distributed tracing platform (Tempo)	Tempo	2.1.1

1.10.2. CVEs

This release fixes CVE-2023-46234.

1.10.3. Red Hat OpenShift distributed tracing platform (Jaeger)

1.10.3.1. Known issues

There are currently known issues:

Apache Spark is not supported.
The streaming deployment via AMQ/Kafka is unsupported on the IBM Z and IBM Power architectures.

1.10.4. Red Hat OpenShift distributed tracing platform (Tempo)

Important

The Red Hat OpenShift distributed tracing platform (Tempo) is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

1.10.4.1. Known issues

There are currently known issues:

Currently, the custom TLS CA option is not implemented for connecting to object storage. (TRACING-3462)
Currently, when used with the Tempo Operator, the Jaeger UI only displays services that have sent traces in the last 15 minutes. For services that did not send traces in the last 15 minutes, traces are still stored but not displayed in the Jaeger UI. (TRACING-3139)
Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)
Currently, the Tempo query frontend service must not use internal mTLS when Gateway is not deployed. This issue does not affect the Jaeger Query API. The workaround is to disable mTLS. (TRACING-3510)
Workaround
Disable mTLS as follows:
1. Open the Tempo Operator ConfigMap for editing by running the following command:
```
$ oc edit configmap tempo-operator-manager-config -n openshift-tempo-operator 1
```
  1
  The project where the Tempo Operator is installed.
2. Disable the mTLS in the Operator configuration by updating the YAML file:
```
data:
  controller_manager_config.yaml: |
    featureGates:
      httpEncryption: false
      grpcEncryption: false
      builtInCertManagement:
        enabled: false
```
3. Restart the Tempo Operator pod by running the following command:
```
$ oc rollout restart deployment.apps/tempo-operator-controller -n openshift-tempo-operator
```

Missing images for running the Tempo Operator in restricted environments. The Red Hat OpenShift distributed tracing platform (Tempo) CSV is missing references to the operand images. (TRACING-3523)

Workaround

Add the Tempo Operator related images in the mirroring tool to mirror the images to the registry:

kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2
archiveSize: 20
storageConfig:
  local:
    path: /home/user/images
mirror:
  operators:
  - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.13
    packages:
    - name: tempo-product
      channels:
      - name: stable
  additionalImages:
  - name: registry.redhat.io/rhosdt/tempo-rhel8@sha256:e4295f837066efb05bcc5897f31eb2bdbd81684a8c59d6f9498dd3590c62c12a
  - name: registry.redhat.io/rhosdt/tempo-gateway-rhel8@sha256:b62f5cedfeb5907b638f14ca6aaeea50f41642980a8a6f87b7061e88d90fac23
  - name: registry.redhat.io/rhosdt/tempo-gateway-opa-rhel8@sha256:8cd134deca47d6817b26566e272e6c3f75367653d589f5c90855c59b2fab01e9
  - name: registry.redhat.io/rhosdt/tempo-query-rhel8@sha256:0da43034f440b8258a48a0697ba643b5643d48b615cdb882ac7f4f1f80aad08e

1.11. Release notes for Red Hat OpenShift distributed tracing platform 2.9.1

1.11.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.9.1

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.47.0
Red Hat OpenShift distributed tracing platform (Tempo)	Tempo	2.1.1

1.11.2. CVEs

This release fixes CVE-2023-44487.

1.11.3. Red Hat OpenShift distributed tracing platform (Jaeger)

1.11.3.1. Known issues

There are currently known issues:

Apache Spark is not supported.
The streaming deployment via AMQ/Kafka is unsupported on the IBM Z and IBM Power architectures.

1.11.4. Red Hat OpenShift distributed tracing platform (Tempo)

Important

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

1.11.4.1. Known issues

There are currently known issues:

Currently, the custom TLS CA option is not implemented for connecting to object storage. (TRACING-3462)
Currently, when used with the Tempo Operator, the Jaeger UI only displays services that have sent traces in the last 15 minutes. For services that did not send traces in the last 15 minutes, traces are still stored but not displayed in the Jaeger UI. (TRACING-3139)
Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)
Currently, the Tempo query frontend service must not use internal mTLS when Gateway is not deployed. This issue does not affect the Jaeger Query API. The workaround is to disable mTLS. (TRACING-3510)
Workaround
Disable mTLS as follows:
1. Open the Tempo Operator ConfigMap for editing by running the following command:
```
$ oc edit configmap tempo-operator-manager-config -n openshift-tempo-operator 1
```
  1
  The project where the Tempo Operator is installed.
2. Disable the mTLS in the Operator configuration by updating the YAML file:
```
data:
  controller_manager_config.yaml: |
    featureGates:
      httpEncryption: false
      grpcEncryption: false
      builtInCertManagement:
        enabled: false
```
3. Restart the Tempo Operator pod by running the following command:
```
$ oc rollout restart deployment.apps/tempo-operator-controller -n openshift-tempo-operator
```

Missing images for running the Tempo Operator in restricted environments. The Red Hat OpenShift distributed tracing platform (Tempo) CSV is missing references to the operand images. (TRACING-3523)

Workaround

Add the Tempo Operator related images in the mirroring tool to mirror the images to the registry:

kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2
archiveSize: 20
storageConfig:
  local:
    path: /home/user/images
mirror:
  operators:
  - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.13
    packages:
    - name: tempo-product
      channels:
      - name: stable
  additionalImages:
  - name: registry.redhat.io/rhosdt/tempo-rhel8@sha256:e4295f837066efb05bcc5897f31eb2bdbd81684a8c59d6f9498dd3590c62c12a
  - name: registry.redhat.io/rhosdt/tempo-gateway-rhel8@sha256:b62f5cedfeb5907b638f14ca6aaeea50f41642980a8a6f87b7061e88d90fac23
  - name: registry.redhat.io/rhosdt/tempo-gateway-opa-rhel8@sha256:8cd134deca47d6817b26566e272e6c3f75367653d589f5c90855c59b2fab01e9
  - name: registry.redhat.io/rhosdt/tempo-query-rhel8@sha256:0da43034f440b8258a48a0697ba643b5643d48b615cdb882ac7f4f1f80aad08e

1.12. Release notes for Red Hat OpenShift distributed tracing platform 2.9

1.12.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.9

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.47.0
Red Hat OpenShift distributed tracing platform (Tempo)	Tempo	2.1.1

1.12.2. Red Hat OpenShift distributed tracing platform (Jaeger)

1.12.2.1. Bug fixes

Before this update, connection was refused due to a missing gRPC port on the jaeger-query deployment. This issue resulted in transport: Error while dialing: dial tcp :16685: connect: connection refused error message. With this update, the Jaeger Query gRPC port (16685) is successfully exposed on the Jaeger Query service. (TRACING-3322)
Before this update, the wrong port was exposed for jaeger-production-query, resulting in refused connection. With this update, the issue is fixed by exposing the Jaeger Query gRPC port (16685) on the Jaeger Query deployment. (TRACING-2968)
Before this update, when deploying Service Mesh on single-node OpenShift clusters in disconnected environments, the Jaeger pod frequently went into the Pending state. With this update, the issue is fixed. (TRACING-3312)
Before this update, the Jaeger Operator pod restarted with the default memory value due to the reason: OOMKilled error message. With this update, this issue is fixed by removing the resource limits. (TRACING-3173)

1.12.2.2. Known issues

There are currently known issues:

Apache Spark is not supported.
The streaming deployment via AMQ/Kafka is unsupported on the IBM Z and IBM Power architectures.

1.12.3. Red Hat OpenShift distributed tracing platform (Tempo)

Important

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

1.12.3.1. New features and enhancements

This release introduces the following enhancements for the distributed tracing platform (Tempo):

Support the operator maturity Level IV, Deep Insights, which enables upgrading, monitoring, and alerting of the TempoStack instances and the Tempo Operator.
Add Ingress and Route configuration for the Gateway.
Support the managed and unmanaged states in the TempoStack custom resource.
Expose the following additional ingestion protocols in the Distributor service: Jaeger Thrift binary, Jaeger Thrift compact, Jaeger gRPC, and Zipkin. When the Gateway is enabled, only the OpenTelemetry protocol (OTLP) gRPC is enabled.
Expose the Jaeger Query gRPC endpoint on the Query Frontend service.
Support multitenancy without Gateway authentication and authorization.

1.12.3.2. Bug fixes

Before this update, the Tempo Operator was not compatible with disconnected environments. With this update, the Tempo Operator supports disconnected environments. (TRACING-3145)
Before this update, the Tempo Operator with TLS failed to start on OpenShift Container Platform. With this update, the mTLS communication is enabled between Tempo components, the Operand starts successfully, and the Jaeger UI is accessible. (TRACING-3091)
Before this update, the resource limits from the Tempo Operator caused error messages such as reason: OOMKilled. With this update, the resource limits for the Tempo Operator are removed to avoid such errors. (TRACING-3204)

1.12.3.3. Known issues

There are currently known issues:

Currently, the custom TLS CA option is not implemented for connecting to object storage. (TRACING-3462)
Currently, when used with the Tempo Operator, the Jaeger UI only displays services that have sent traces in the last 15 minutes. For services that did not send traces in the last 15 minutes, traces are still stored but not displayed in the Jaeger UI. (TRACING-3139)
Currently, the distributed tracing platform (Tempo) fails on the IBM Z (s390x) architecture. (TRACING-3545)
Currently, the Tempo query frontend service must not use internal mTLS when Gateway is not deployed. This issue does not affect the Jaeger Query API. The workaround is to disable mTLS. (TRACING-3510)
Workaround
Disable mTLS as follows:
1. Open the Tempo Operator ConfigMap for editing by running the following command:
```
$ oc edit configmap tempo-operator-manager-config -n openshift-tempo-operator 1
```
  1
  The project where the Tempo Operator is installed.
2. Disable the mTLS in the Operator configuration by updating the YAML file:
```
data:
  controller_manager_config.yaml: |
    featureGates:
      httpEncryption: false
      grpcEncryption: false
      builtInCertManagement:
        enabled: false
```
3. Restart the Tempo Operator pod by running the following command:
```
$ oc rollout restart deployment.apps/tempo-operator-controller -n openshift-tempo-operator
```

Missing images for running the Tempo Operator in restricted environments. The Red Hat OpenShift distributed tracing platform (Tempo) CSV is missing references to the operand images. (TRACING-3523)

Workaround

Add the Tempo Operator related images in the mirroring tool to mirror the images to the registry:

kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2
archiveSize: 20
storageConfig:
  local:
    path: /home/user/images
mirror:
  operators:
  - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.13
    packages:
    - name: tempo-product
      channels:
      - name: stable
  additionalImages:
  - name: registry.redhat.io/rhosdt/tempo-rhel8@sha256:e4295f837066efb05bcc5897f31eb2bdbd81684a8c59d6f9498dd3590c62c12a
  - name: registry.redhat.io/rhosdt/tempo-gateway-rhel8@sha256:b62f5cedfeb5907b638f14ca6aaeea50f41642980a8a6f87b7061e88d90fac23
  - name: registry.redhat.io/rhosdt/tempo-gateway-opa-rhel8@sha256:8cd134deca47d6817b26566e272e6c3f75367653d589f5c90855c59b2fab01e9
  - name: registry.redhat.io/rhosdt/tempo-query-rhel8@sha256:0da43034f440b8258a48a0697ba643b5643d48b615cdb882ac7f4f1f80aad08e

1.13. Release notes for Red Hat OpenShift distributed tracing platform 2.8

1.13.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.8

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.42
Red Hat OpenShift distributed tracing platform (Tempo)	Tempo	0.1.0

1.13.2. Technology Preview features

This release introduces support for the Red Hat OpenShift distributed tracing platform (Tempo) as a Technology Preview feature for Red Hat OpenShift distributed tracing platform.

Important

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

The feature uses version 0.1.0 of the Red Hat OpenShift distributed tracing platform (Tempo) and version 2.0.1 of the upstream distributed tracing platform (Tempo) components.

You can use the distributed tracing platform (Tempo) to replace Jaeger so that you can use S3-compatible storage instead of ElasticSearch. Most users who use the distributed tracing platform (Tempo) instead of Jaeger will not notice any difference in functionality because the distributed tracing platform (Tempo) supports the same ingestion and query protocols as Jaeger and uses the same user interface.

If you enable this Technology Preview feature, note the following limitations of the current implementation:

The distributed tracing platform (Tempo) currently does not support disconnected installations. (TRACING-3145)
When you use the Jaeger user interface (UI) with the distributed tracing platform (Tempo), the Jaeger UI lists only services that have sent traces within the last 15 minutes. For services that have not sent traces within the last 15 minutes, those traces are still stored even though they are not visible in the Jaeger UI. (TRACING-3139)

Expanded support for the Tempo Operator is planned for future releases of the Red Hat OpenShift distributed tracing platform. Possible additional features might include support for TLS authentication, multitenancy, and multiple clusters. For more information about the Tempo Operator, see the Tempo community documentation.

1.13.3. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.14. Release notes for Red Hat OpenShift distributed tracing platform 2.7

1.14.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.7

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.39

1.14.2. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.15. Release notes for Red Hat OpenShift distributed tracing platform 2.6

1.15.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.6

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.38

1.15.2. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.16. Release notes for Red Hat OpenShift distributed tracing platform 2.5

1.16.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.5

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.36

1.16.2. New features and enhancements

This release introduces support for ingesting OpenTelemetry protocol (OTLP) to the Red Hat OpenShift distributed tracing platform (Jaeger) Operator. The Operator now automatically enables the OTLP ports:

Port 4317 for the OTLP gRPC protocol.
Port 4318 for the OTLP HTTP protocol.

This release also adds support for collecting Kubernetes resource attributes to the Red Hat build of OpenTelemetry Operator.

1.16.3. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.17. Release notes for Red Hat OpenShift distributed tracing platform 2.4

1.17.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.4

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.34.1

1.17.2. New features and enhancements

This release adds support for auto-provisioning certificates using the OpenShift Elasticsearch Operator.

Self-provisioning by using the Red Hat OpenShift distributed tracing platform (Jaeger) Operator to call the OpenShift Elasticsearch Operator during installation.

Important

When upgrading to the Red Hat OpenShift distributed tracing platform 2.4, the Operator recreates the Elasticsearch instance, which might take five to ten minutes. Distributed tracing will be down and unavailable for that period.

1.17.3. Technology Preview features

Creating the Elasticsearch instance and certificates first and then configuring the distributed tracing platform (Jaeger) to use the certificate is a Technology Preview for this release.

1.17.4. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.18. Release notes for Red Hat OpenShift distributed tracing platform 2.3

1.18.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.3.1

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.30.2

1.18.2. Component versions in the Red Hat OpenShift distributed tracing platform 2.3.0

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.30.1

1.18.3. New features and enhancements

With this release, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator is now installed to the openshift-distributed-tracing namespace by default. Before this update, the default installation had been in the openshift-operators namespace.

1.18.4. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.19. Release notes for Red Hat OpenShift distributed tracing platform 2.2

1.19.1. Technology Preview features

The unsupported OpenTelemetry Collector components included in the 2.1 release are removed.

1.19.2. Bug fixes

This release of the Red Hat OpenShift distributed tracing platform addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.20. Release notes for Red Hat OpenShift distributed tracing platform 2.1

1.20.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.1

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.29.1

1.20.2. Technology Preview features

This release introduces a breaking change to how to configure certificates in the OpenTelemetry custom resource file. With this update, the ca_file moves under tls in the custom resource, as shown in the following examples.

CA file configuration for OpenTelemetry version 0.33

spec:
  mode: deployment
  config: |
    exporters:
      jaeger:
        endpoint: jaeger-production-collector-headless.tracing-system.svc:14250
        ca_file: "/var/run/secrets/kubernetes.io/serviceaccount/service-ca.crt"

CA file configuration for OpenTelemetry version 0.41.1

spec:
  mode: deployment
  config: |
    exporters:
      jaeger:
        endpoint: jaeger-production-collector-headless.tracing-system.svc:14250
        tls:
          ca_file: "/var/run/secrets/kubernetes.io/serviceaccount/service-ca.crt"

1.20.3. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.21. Release notes for Red Hat OpenShift distributed tracing platform 2.0

1.21.1. Component versions in the Red Hat OpenShift distributed tracing platform 2.0

Operator	Component	Version
Red Hat OpenShift distributed tracing platform (Jaeger)	Jaeger	1.28.0

1.21.2. New features and enhancements

This release introduces the following new features and enhancements:

Rebrands Red Hat OpenShift Jaeger as the Red Hat OpenShift distributed tracing platform.
Updates Red Hat OpenShift distributed tracing platform (Jaeger) Operator to Jaeger 1.28. Going forward, the Red Hat OpenShift distributed tracing platform will only support the stable Operator channel. Channels for individual releases are no longer supported.
Adds support for OpenTelemetry protocol (OTLP) to the Query service.
Introduces a new distributed tracing icon that appears in the OperatorHub.
Includes rolling updates to the documentation to support the name change and new features.

1.21.3. Technology Preview features

This release adds the Red Hat build of OpenTelemetry as a Technology Preview, which you install using the Red Hat build of OpenTelemetry Operator. Red Hat build of OpenTelemetry is based on the OpenTelemetry APIs and instrumentation. The Red Hat build of OpenTelemetry includes the OpenTelemetry Operator and Collector. You can use the Collector to receive traces in the OpenTelemetry or Jaeger protocol and send the trace data to the Red Hat OpenShift distributed tracing platform. Other capabilities of the Collector are not supported at this time. The OpenTelemetry Collector allows developers to instrument their code with vendor agnostic APIs, avoiding vendor lock-in and enabling a growing ecosystem of observability tooling.

1.21.4. Bug fixes

This release addresses Common Vulnerabilities and Exposures (CVEs) and bug fixes.

1.22. Getting support

If you experience difficulty with a procedure described in this documentation, or with OpenShift Container Platform in general, visit the Red Hat Customer Portal.

From the Customer Portal, you can:

Search or browse through the Red Hat Knowledgebase of articles and solutions relating to Red Hat products.
Submit a support case to Red Hat Support.
Access other product documentation.

To identify issues with your cluster, you can use Insights in OpenShift Cluster Manager. Insights provides details about issues and, if available, information on how to solve a problem.

If you have a suggestion for improving this documentation or have found an error, submit a Jira issue for the most relevant documentation component. Please provide specific details, such as the section name and OpenShift Container Platform version.

1.23. Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upcoming releases. For more details, see our CTO Chris Wright’s message.

Chapter 2. Distributed tracing architecture

2.1. Distributed tracing architecture

Every time a user takes an action in an application, a request is executed by the architecture that may require dozens of different services to participate to produce a response. Red Hat OpenShift distributed tracing platform lets you perform distributed tracing, which records the path of a request through various microservices that make up an application.

Distributed tracing is a technique that is used to tie the information about different units of work together — usually executed in different processes or hosts — to understand a whole chain of events in a distributed transaction. Developers can visualize call flows in large microservice architectures with distributed tracing. It is valuable for understanding serialization, parallelism, and sources of latency.

Red Hat OpenShift distributed tracing platform records the execution of individual requests across the whole stack of microservices, and presents them as traces. A trace is a data/execution path through the system. An end-to-end trace is comprised of one or more spans.

A span represents a logical unit of work in Red Hat OpenShift distributed tracing platform that has an operation name, the start time of the operation, and the duration, as well as potentially tags and logs. Spans may be nested and ordered to model causal relationships.

2.1.1. Distributed tracing overview

With the distributed tracing platform, you can perform the following functions:

Monitor distributed transactions
Optimize performance and latency
Perform root cause analysis

2.1.2. Red Hat OpenShift distributed tracing platform features

Red Hat OpenShift distributed tracing platform provides the following capabilities:

Integration with Kiali – When properly configured, you can view distributed tracing platform data from the Kiali console.
High scalability – The distributed tracing platform back end is designed to have no single points of failure and to scale with the business needs.
Distributed Context Propagation – Enables you to connect data from different components together to create a complete end-to-end trace.
Backwards compatibility with Zipkin – Red Hat OpenShift distributed tracing platform has APIs that enable it to be used as a drop-in replacement for Zipkin, but Red Hat is not supporting Zipkin compatibility in this release.

2.1.3. Red Hat OpenShift distributed tracing platform architecture

Red Hat OpenShift distributed tracing platform is made up of several components that work together to collect, store, and display tracing data.

Red Hat OpenShift distributed tracing platform (Tempo) - This component is based on the open source Grafana Tempo project.
- Gateway – The Gateway handles authentication, authorization, and forwarding requests to the Distributor or Query front-end service.
- Distributor – The Distributor accepts spans in multiple formats including Jaeger, OpenTelemetry, and Zipkin. It routes spans to Ingesters by hashing the traceID and using a distributed consistent hash ring.
- Ingester – The Ingester batches a trace into blocks, creates bloom filters and indexes, and then flushes it all to the back end.
- Query Frontend – The Query Frontend is responsible for sharding the search space for an incoming query. The search query is then sent to the Queriers. The Query Frontend deployment exposes the Jaeger UI through the Tempo Query sidecar.
- Querier - The Querier is responsible for finding the requested trace ID in either the Ingesters or the back-end storage. Depending on parameters, it can query the Ingesters and pull Bloom indexes from the back end to search blocks in object storage.
- Compactor – The Compactors stream blocks to and from the back-end storage to reduce the total number of blocks.
Red Hat build of OpenTelemetry - This component is based on the open source OpenTelemetry project.
- OpenTelemetry Collector - The OpenTelemetry Collector is a vendor-agnostic way to receive, process, and export telemetry data. The OpenTelemetry Collector supports open-source observability data formats, for example, Jaeger and Prometheus, sending to one or more open-source or commercial back-ends. The Collector is the default location instrumentation libraries export their telemetry data.
Red Hat OpenShift distributed tracing platform (Jaeger) - This component is based on the open source Jaeger project.
- Client (Jaeger client, Tracer, Reporter, instrumented application, client libraries)- The distributed tracing platform (Jaeger) clients are language-specific implementations of the OpenTracing API. They can be used to instrument applications for distributed tracing either manually or with a variety of existing open source frameworks, such as Camel (Fuse), Spring Boot (RHOAR), MicroProfile (RHOAR/Thorntail), Wildfly (EAP), and many more, that are already integrated with OpenTracing.
- Agent (Jaeger agent, Server Queue, Processor Workers) - The distributed tracing platform (Jaeger) agent is a network daemon that listens for spans sent over User Datagram Protocol (UDP), which it batches and sends to the Collector. The agent is meant to be placed on the same host as the instrumented application. This is typically accomplished by having a sidecar in container environments such as Kubernetes.
- Jaeger Collector (Collector, Queue, Workers) - Similar to the Jaeger agent, the Jaeger Collector receives spans and places them in an internal queue for processing. This allows the Jaeger Collector to return immediately to the client/agent instead of waiting for the span to make its way to the storage.
- Storage (Data Store) - Collectors require a persistent storage backend. Red Hat OpenShift distributed tracing platform (Jaeger) has a pluggable mechanism for span storage. Red Hat OpenShift distributed tracing platform (Jaeger) supports the Elasticsearch storage.
- Query (Query Service) - Query is a service that retrieves traces from storage.
- Ingester (Ingester Service) - Red Hat OpenShift distributed tracing platform can use Apache Kafka as a buffer between the Collector and the actual Elasticsearch backing storage. Ingester is a service that reads data from Kafka and writes to the Elasticsearch storage backend.
- Jaeger Console – With the Red Hat OpenShift distributed tracing platform (Jaeger) user interface, you can visualize your distributed tracing data. On the Search page, you can find traces and explore details of the spans that make up an individual trace.

2.1.4. Additional resources

Red Hat build of OpenTelemetry

Chapter 3. Distributed tracing platform (Tempo)

3.1. Installing

Installing the distributed tracing platform (Tempo) requires the Tempo Operator and choosing which type of deployment is best for your use case:

For microservices mode, deploy a TempoStack instance in a dedicated OpenShift project.
For monolithic mode, deploy a TempoMonolithic instance in a dedicated OpenShift project.

Important

Using object storage requires setting up a supported object store and creating a secret for the object store credentials before deploying a TempoStack or TempoMonolithic instance.

3.1.1. Installing the Tempo Operator

You can install the Tempo Operator by using the web console or the command line.

3.1.1.1. Installing the Tempo Operator by using the web console

You can install the Tempo Operator from the Administrator view of the web console.

Prerequisites

You are logged in to the OpenShift Container Platform web console as a cluster administrator with the cluster-admin role.
For Red Hat OpenShift Dedicated, you must be logged in using an account with the dedicated-admin role.
You have completed setting up the required object storage by a supported provider: Red Hat OpenShift Data Foundation, MinIO, Amazon S3, Azure Blob Storage, Google Cloud Storage. For more information, see "Object storage setup".
Warning
Object storage is required and not included with the distributed tracing platform (Tempo). You must choose and set up object storage by a supported provider before installing the distributed tracing platform (Tempo).

Procedure

Go to Operators → OperatorHub and search for Tempo Operator.
Select the Tempo Operator that is provided by Red Hat.
Important
The following selections are the default presets for this Operator:
- Update channel → stable
- Installation mode → All namespaces on the cluster
- Installed Namespace → openshift-tempo-operator
- Update approval → Automatic
Select the Enable Operator recommended cluster monitoring on this Namespace checkbox.
Select Install → Install → View Operator.

Verification

In the Details tab of the page of the installed Operator, under ClusterServiceVersion details, verify that the installation Status is Succeeded.

3.1.1.2. Installing the Tempo Operator by using the CLI

You can install the Tempo Operator from the command line.

Prerequisites

An active OpenShift CLI (oc) session by a cluster administrator with the cluster-admin role.
Tip
- Ensure that your OpenShift CLI (oc) version is up to date and matches your OpenShift Container Platform version.
- Run oc login:
  $ oc login --username=<your_username>
You have completed setting up the required object storage by a supported provider: Red Hat OpenShift Data Foundation, MinIO, Amazon S3, Azure Blob Storage, Google Cloud Storage. For more information, see "Object storage setup".
Warning
Object storage is required and not included with the distributed tracing platform (Tempo). You must choose and set up object storage by a supported provider before installing the distributed tracing platform (Tempo).

Procedure

Create a project for the Tempo Operator by running the following command:

$ oc apply -f - << EOF
apiVersion: project.openshift.io/v1
kind: Project
metadata:
  labels:
    kubernetes.io/metadata.name: openshift-tempo-operator
    openshift.io/cluster-monitoring: "true"
  name: openshift-tempo-operator
EOF

Create an Operator group by running the following command:

$ oc apply -f - << EOF
apiVersion: operators.coreos.com/v1
kind: OperatorGroup
metadata:
  name: openshift-tempo-operator
  namespace: openshift-tempo-operator
spec:
  upgradeStrategy: Default
EOF

Create a subscription by running the following command:

$ oc apply -f - << EOF
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: tempo-product
  namespace: openshift-tempo-operator
spec:
  channel: stable
  installPlanApproval: Automatic
  name: tempo-product
  source: redhat-operators
  sourceNamespace: openshift-marketplace
EOF

Verification

Check the Operator status by running the following command:
```
$ oc get csv -n openshift-tempo-operator
```

3.1.2. Installing a TempoStack instance

You can install a TempoStack instance by using the web console or the command line.

3.1.2.1. Installing a TempoStack instance by using the web console

You can install a TempoStack instance from the Administrator view of the web console.

Prerequisites

You are logged in to the OpenShift Container Platform web console as a cluster administrator with the cluster-admin role.
For Red Hat OpenShift Dedicated, you must be logged in using an account with the dedicated-admin role.
You have completed setting up the required object storage by a supported provider: Red Hat OpenShift Data Foundation, MinIO, Amazon S3, Azure Blob Storage, Google Cloud Storage. For more information, see "Object storage setup".
Warning
Object storage is required and not included with the distributed tracing platform (Tempo). You must choose and set up object storage by a supported provider before installing the distributed tracing platform (Tempo).

Procedure

Go to Home → Projects → Create Project to create a project of your choice for the TempoStack instance that you will create in a subsequent step.
Go to Workloads → Secrets → Create → From YAML to create a secret for your object storage bucket in the project that you created for the TempoStack instance. For more information, see "Object storage setup".
Example secret for Amazon S3 and MinIO storage
```
apiVersion: v1
kind: Secret
metadata:
  name: minio-test
stringData:
  endpoint: http://minio.minio.svc:9000
  bucket: tempo
  access_key_id: tempo
  access_key_secret: <secret>
type: Opaque
```
Create a TempoStack instance.
Note
You can create multiple TempoStack instances in separate projects on the same cluster.
1. Go to Operators → Installed Operators.
2. Select TempoStack → Create TempoStack → YAML view.
3. In the YAML view, customize the TempoStack custom resource (CR):
```
apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: sample
  namespace: <project_of_tempostack_instance>
spec:
  storageSize: <value>Gi 1
  storage:
    secret: 2
      name: <secret_name> 3
      type: <secret_provider> 4
    tls: 5
      enabled: true
      caName: <ca_certificate_configmap_name> 6
  template:
    queryFrontend:
      jaegerQuery:
        enabled: true
        ingress:
          route:
            termination: edge
          type: route
  resources: 7
    total:
      limits:
        memory: <value>Gi
        cpu: <value>m
```
  1
  Size of the persistent volume claim for the Tempo WAL. The default is 10Gi.
  2
  Secret you created in step 2 for the object storage that had been set up as one of the prerequisites.
  3
  Value of the name in the metadata of the secret.
  4
  Accepted values are azure for Azure Blob Storage; gcs for Google Cloud Storage; and s3 for Amazon S3, MinIO, or Red Hat OpenShift Data Foundation.
  5
  Optional.
  6
  Optional: Name of a ConfigMap object that contains a CA certificate.
  7
  Optional.
  Example of a TempoStack CR for AWS S3 and MinIO storage
```
apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: simplest
  namespace: <project_of_tempostack_instance>
spec:
  storageSize: 1Gi
  storage: 1
    secret:
      name: minio-test
      type: s3
  resources:
    total:
      limits:
        memory: 2Gi
        cpu: 2000m
  template:
    queryFrontend:
      jaegerQuery: 2
        enabled: true
        ingress:
          route:
            termination: edge
          type: route
```
  1
  In this example, the object storage was set up as one of the prerequisites, and the object storage secret was created in step 2.
  2
  The stack deployed in this example is configured to receive Jaeger Thrift over HTTP and OpenTelemetry Protocol (OTLP), which permits visualizing the data with the Jaeger UI.
4. Select Create.

Verification

Use the Project: dropdown list to select the project of the TempoStack instance.
Go to Operators → Installed Operators to verify that the Status of the TempoStack instance is Condition: Ready.
Go to Workloads → Pods to verify that all the component pods of the TempoStack instance are running.
Access the Tempo console:
1. Go to Networking → Routes and Ctrl+F to search for tempo.
2. In the Location column, open the URL to access the Tempo console.
  Note
  The Tempo console initially shows no trace data following the Tempo console installation.

3.1.2.2. Installing a TempoStack instance by using the CLI

You can install a TempoStack instance from the command line.

Prerequisites

An active OpenShift CLI (oc) session by a cluster administrator with the cluster-admin role.
Tip
- Ensure that your OpenShift CLI (oc) version is up to date and matches your OpenShift Container Platform version.
- Run the oc login command:
  $ oc login --username=<your_username>
You have completed setting up the required object storage by a supported provider: Red Hat OpenShift Data Foundation, MinIO, Amazon S3, Azure Blob Storage, Google Cloud Storage. For more information, see "Object storage setup".
Warning
Object storage is required and not included with the distributed tracing platform (Tempo). You must choose and set up object storage by a supported provider before installing the distributed tracing platform (Tempo).

Procedure

Run the following command to create a project of your choice for the TempoStack instance that you will create in a subsequent step:
```
$ oc apply -f - << EOF
apiVersion: project.openshift.io/v1
kind: Project
metadata:
  name: <project_of_tempostack_instance>
EOF
```

In the project that you created for the TempoStack instance, create a secret for your object storage bucket by running the following command:

$ oc apply -f - << EOF
<object_storage_secret>
EOF

For more information, see "Object storage setup".

Example secret for Amazon S3 and MinIO storage

apiVersion: v1
kind: Secret
metadata:
  name: minio-test
stringData:
  endpoint: http://minio.minio.svc:9000
  bucket: tempo
  access_key_id: tempo
  access_key_secret: <secret>
type: Opaque

Create a TempoStack instance in the project that you created for it:

Note

You can create multiple TempoStack instances in separate projects on the same cluster.

Customize the TempoStack custom resource (CR):

apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: sample
  namespace: <project_of_tempostack_instance>
spec:
  storageSize: <value>Gi 1
  storage:
    secret: 2
      name: <secret_name> 3
      type: <secret_provider> 4
    tls: 5
      enabled: true
      caName: <ca_certificate_configmap_name> 6
  template:
    queryFrontend:
      jaegerQuery:
        enabled: true
        ingress:
          route:
            termination: edge
          type: route
  resources: 7
    total:
      limits:
        memory: <value>Gi
        cpu: <value>m

1: Size of the persistent volume claim for the Tempo WAL. The default is 10Gi.
2: Secret you created in step 2 for the object storage that had been set up as one of the prerequisites.
3: Value of the name in the metadata of the secret.
4: Accepted values are azure for Azure Blob Storage; gcs for Google Cloud Storage; and s3 for Amazon S3, MinIO, or Red Hat OpenShift Data Foundation.
5: Optional.
6: Optional: Name of a ConfigMap object that contains a CA certificate.
7: Optional.

Example of a TempoStack CR for AWS S3 and MinIO storage

apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: simplest
  namespace: <project_of_tempostack_instance>
spec:
  storageSize: 1Gi
  storage: 1
    secret:
      name: minio-test
      type: s3
  resources:
    total:
      limits:
        memory: 2Gi
        cpu: 2000m
  template:
    queryFrontend:
      jaegerQuery: 2
        enabled: true
        ingress:
          route:
            termination: edge
          type: route

1: In this example, the object storage was set up as one of the prerequisites, and the object storage secret was created in step 2.
2: The stack deployed in this example is configured to receive Jaeger Thrift over HTTP and OpenTelemetry Protocol (OTLP), which permits visualizing the data with the Jaeger UI.

Apply the customized CR by running the following command:
```
$ oc apply -f - << EOF
<tempostack_cr>
EOF
```

Verification

Verify that the status of all TempoStack components is Running and the conditions are type: Ready by running the following command:
```
$ oc get tempostacks.tempo.grafana.com simplest -o yaml
```
Verify that all the TempoStack component pods are running by running the following command:
```
$ oc get pods
```
Access the Tempo console:
1. Query the route details by running the following command:
```
$ oc get route
```
2. Open https://<route_from_previous_step> in a web browser.
  Note
  The Tempo console initially shows no trace data following the Tempo console installation.

3.1.3. Installing a TempoMonolithic instance

Important

The TempoMonolithic instance is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

You can install a TempoMonolithic instance by using the web console or the command line.

The TempoMonolithic custom resource (CR) creates a Tempo deployment in monolithic mode. All components of the Tempo deployment, such as the compactor, distributor, ingester, querier, and query frontend, are contained in a single container.

A TempoMonolithic instance supports storing traces in in-memory storage, a persistent volume, or object storage.

Tempo deployment in monolithic mode is preferred for a small deployment, demonstration, testing, and as a migration path of the Red Hat OpenShift distributed tracing platform (Jaeger) all-in-one deployment.

Note

The monolithic deployment of Tempo does not scale horizontally. If you require horizontal scaling, use the TempoStack CR for a Tempo deployment in microservices mode.

3.1.3.1. Installing a TempoMonolithic instance by using the web console

Important

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

You can install a TempoMonolithic instance from the Administrator view of the web console.

Prerequisites

You are logged in to the OpenShift Container Platform web console as a cluster administrator with the cluster-admin role.
For Red Hat OpenShift Dedicated, you must be logged in using an account with the dedicated-admin role.

Procedure

Go to Home → Projects → Create Project to create a project of your choice for the TempoMonolithic instance that you will create in a subsequent step.
Decide which type of supported storage to use for storing traces: in-memory storage, a persistent volume, or object storage.
Important
Object storage is not included with the distributed tracing platform (Tempo) and requires setting up an object store by a supported provider: Red Hat OpenShift Data Foundation, MinIO, Amazon S3, Azure Blob Storage, or Google Cloud Storage.
Additionally, opting for object storage requires creating a secret for your object storage bucket in the project that you created for the TempoMonolithic instance. You can do this in Workloads → Secrets → Create → From YAML.
For more information, see "Object storage setup".
Example secret for Amazon S3 and MinIO storage
```
apiVersion: v1
kind: Secret
metadata:
  name: minio-test
stringData:
  endpoint: http://minio.minio.svc:9000
  bucket: tempo
  access_key_id: tempo
  access_key_secret: <secret>
type: Opaque
```
Create a TempoMonolithic instance:
Note
You can create multiple TempoMonolithic instances in separate projects on the same cluster.
1. Go to Operators → Installed Operators.
2. Select TempoMonolithic → Create TempoMonolithic → YAML view.
3. In the YAML view, customize the TempoMonolithic custom resource (CR).
  The following TempoMonolithic CR creates a TempoMonolithic deployment with trace ingestion over OTLP/gRPC and OTLP/HTTP, storing traces in a supported type of storage and exposing Jaeger UI via a route:
```
apiVersion: tempo.grafana.com/v1alpha1
kind: TempoMonolithic
metadata:
  name: <metadata_name>
  namespace: <project_of_tempomonolithic_instance>
spec:
  storage:
    traces:
      backend: <supported_storage_type> 1
      size: <value>Gi 2
      s3: 3
        secret: <secret_name> 4
    tls: 5
      enabled: true
      caName: <ca_certificate_configmap_name> 6
  jaegerui:
    enabled: true 7
    route:
      enabled: true 8
  resources: 9
    total:
      limits:
        memory: <value>Gi
        cpu: <value>m
```
  1
  Type of storage for storing traces: in-memory storage, a persistent volume, or object storage. The value for a persistent volume is pv. The accepted values for object storage are s3, gcs, or azure, depending on the used object store type. The default value is memory for the tmpfs in-memory storage, which is only appropriate for development, testing, demonstrations, and proof-of-concept environments because the data does not persist when the pod is shut down.
  2
  Memory size: For in-memory storage, this means the size of the tmpfs volume, where the default is 2Gi. For a persistent volume, this means the size of the persistent volume claim, where the default is 10Gi. For object storage, this means the size of the persistent volume claim for the Tempo WAL, where the default is 10Gi.
  3
  Optional: For object storage, the type of object storage. The accepted values are s3, gcs, and azure, depending on the used object store type.
  4
  Optional: For object storage, the value of the name in the metadata of the storage secret. The storage secret must be in the same namespace as the TempoMonolithic instance and contain the fields specified in "Table 1. Required secret parameters" in the section "Object storage setup".
  5
  Optional.
  6
  Optional: Name of a ConfigMap object that contains a CA certificate.
  7
  Enables the Jaeger UI.
  8
  Enables creation of a route for the Jaeger UI.
  9
  Optional.
4. Select Create.

Verification

Use the Project: dropdown list to select the project of the TempoMonolithic instance.
Go to Operators → Installed Operators to verify that the Status of the TempoMonolithic instance is Condition: Ready.
Go to Workloads → Pods to verify that the pod of the TempoMonolithic instance is running.
Access the Jaeger UI:
1. Go to Networking → Routes and Ctrl+F to search for jaegerui.
  Note
  The Jaeger UI uses the tempo-<metadata_name_of_TempoMonolithic_CR>-jaegerui route.
2. In the Location column, open the URL to access the Jaeger UI.
When the pod of the TempoMonolithic instance is ready, you can send traces to the tempo-<metadata_name_of_TempoMonolithic_CR>:4317 (OTLP/gRPC) and tempo-<metadata_name_of_TempoMonolithic_CR>:4318 (OTLP/HTTP) endpoints inside the cluster.
The Tempo API is available at the tempo-<metadata_name_of_TempoMonolithic_CR>:3200 endpoint inside the cluster.

3.1.3.2. Installing a TempoMonolithic instance by using the CLI

Important

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

You can install a TempoMonolithic instance from the command line.

Prerequisites

An active OpenShift CLI (oc) session by a cluster administrator with the cluster-admin role.
Tip
- Ensure that your OpenShift CLI (oc) version is up to date and matches your OpenShift Container Platform version.
- Run the oc login command:
  $ oc login --username=<your_username>

Procedure

Run the following command to create a project of your choice for the TempoMonolithic instance that you will create in a subsequent step:
```
$ oc apply -f - << EOF
apiVersion: project.openshift.io/v1
kind: Project
metadata:
  name: <project_of_tempomonolithic_instance>
EOF
```
Decide which type of supported storage to use for storing traces: in-memory storage, a persistent volume, or object storage.
Important
Object storage is not included with the distributed tracing platform (Tempo) and requires setting up an object store by a supported provider: Red Hat OpenShift Data Foundation, MinIO, Amazon S3, Azure Blob Storage, or Google Cloud Storage.
Additionally, opting for object storage requires creating a secret for your object storage bucket in the project that you created for the TempoMonolithic instance. You can do this by running the following command:
```
$ oc apply -f - << EOF
<object_storage_secret>
EOF
```
For more information, see "Object storage setup".
Example secret for Amazon S3 and MinIO storage
```
apiVersion: v1
kind: Secret
metadata:
  name: minio-test
stringData:
  endpoint: http://minio.minio.svc:9000
  bucket: tempo
  access_key_id: tempo
  access_key_secret: <secret>
type: Opaque
```
Create a TempoMonolithic instance in the project that you created for it.
Tip
You can create multiple TempoMonolithic instances in separate projects on the same cluster.
1. Customize the TempoMonolithic custom resource (CR).
  The following TempoMonolithic CR creates a TempoMonolithic deployment with trace ingestion over OTLP/gRPC and OTLP/HTTP, storing traces in a supported type of storage and exposing Jaeger UI via a route:
```
apiVersion: tempo.grafana.com/v1alpha1
kind: TempoMonolithic
metadata:
  name: <metadata_name>
  namespace: <project_of_tempomonolithic_instance>
spec:
  storage:
    traces:
      backend: <supported_storage_type> 1
      size: <value>Gi 2
      s3: 3
        secret: <secret_name> 4
    tls: 5
      enabled: true
      caName: <ca_certificate_configmap_name> 6
  jaegerui:
    enabled: true 7
    route:
      enabled: true 8
  resources: 9
    total:
      limits:
        memory: <value>Gi
        cpu: <value>m
```
  1
  Type of storage for storing traces: in-memory storage, a persistent volume, or object storage. The value for a persistent volume is pv. The accepted values for object storage are s3, gcs, or azure, depending on the used object store type. The default value is memory for the tmpfs in-memory storage, which is only appropriate for development, testing, demonstrations, and proof-of-concept environments because the data does not persist when the pod is shut down.
  2
  Memory size: For in-memory storage, this means the size of the tmpfs volume, where the default is 2Gi. For a persistent volume, this means the size of the persistent volume claim, where the default is 10Gi. For object storage, this means the size of the persistent volume claim for the Tempo WAL, where the default is 10Gi.
  3
  Optional: For object storage, the type of object storage. The accepted values are s3, gcs, and azure, depending on the used object store type.
  4
  Optional: For object storage, the value of the name in the metadata of the storage secret. The storage secret must be in the same namespace as the TempoMonolithic instance and contain the fields specified in "Table 1. Required secret parameters" in the section "Object storage setup".
  5
  Optional.
  6
  Optional: Name of a ConfigMap object that contains a CA certificate.
  7
  Enables the Jaeger UI.
  8
  Enables creation of a route for the Jaeger UI.
  9
  Optional.
2. Apply the customized CR by running the following command:
```
$ oc apply -f - << EOF
<tempomonolithic_cr>
EOF
```

Verification

Verify that the status of all TempoMonolithic components is Running and the conditions are type: Ready by running the following command:
```
$ oc get tempomonolithic.tempo.grafana.com <metadata_name_of_tempomonolithic_cr> -o yaml
```
Run the following command to verify that the pod of the TempoMonolithic instance is running:
```
$ oc get pods
```
Access the Jaeger UI:
1. Query the route details for the tempo-<metadata_name_of_tempomonolithic_cr>-jaegerui route by running the following command:
```
$ oc get route
```
2. Open https://<route_from_previous_step> in a web browser.
When the pod of the TempoMonolithic instance is ready, you can send traces to the tempo-<metadata_name_of_tempomonolithic_cr>:4317 (OTLP/gRPC) and tempo-<metadata_name_of_tempomonolithic_cr>:4318 (OTLP/HTTP) endpoints inside the cluster.
The Tempo API is available at the tempo-<metadata_name_of_tempomonolithic_cr>:3200 endpoint inside the cluster.

3.1.4. Object storage setup

You can use the following configuration parameters when setting up a supported object storage.

Table 3.1. Required secret parameters
Storage provider
Secret parameters
Red Hat OpenShift Data Foundation
`name: tempostack-dev-odf # example` `bucket: <bucket_name> # requires an ObjectBucketClaim` `endpoint: https://s3.openshift-storage.svc` `access_key_id: <data_foundation_access_key_id>` `access_key_secret: <data_foundation_access_key_secret>`
MinIO
See MinIO Operator. `name: tempostack-dev-minio # example` `bucket: <minio_bucket_name> # MinIO documentation` `endpoint: <minio_bucket_endpoint>` `access_key_id: <minio_access_key_id>` `access_key_secret: <minio_access_key_secret>`
Amazon S3
`name: tempostack-dev-s3 # example` `bucket: <s3_bucket_name> # Amazon S3 documentation` `endpoint: <s3_bucket_endpoint>` `access_key_id: <s3_access_key_id>` `access_key_secret: <s3_access_key_secret>`
Amazon S3 with Security Token Service (STS)
`name: tempostack-dev-s3 # example` `bucket: <s3_bucket_name> # Amazon S3 documentation` `region: <s3_region>` `role_arn: <s3_role_arn>`
Microsoft Azure Blob Storage
`name: tempostack-dev-azure # example` `container: <azure_blob_storage_container_name> # Microsoft Azure documentation` `account_name: <azure_blob_storage_account_name>` `account_key: <azure_blob_storage_account_key>`
Google Cloud Storage on Google Cloud Platform (GCP)
`name: tempostack-dev-gcs # example` `bucketname: <google_cloud_storage_bucket_name> # requires a bucket created in a GCP project` `key.json: <path/to/key.json> # requires a service account in the bucket’s GCP project for GCP authentication`

3.1.4.1. Setting up the Amazon S3 storage with the Security Token Service

You can set up the Amazon S3 storage with the Security Token Service (STS) by using the AWS Command Line Interface (AWS CLI).

Important

The Amazon S3 storage with the Security Token Service is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

Prerequisites

You have installed the latest version of the AWS CLI.

Procedure

Create an AWS S3 bucket.

Create the following trust.json file for the AWS IAM policy that will set up a trust relationship for the AWS IAM role, created in the next step, with the service account of the TempoStack instance:

{
    "Version": "2012-10-17",
    "Statement": [
      {
        "Effect": "Allow",
        "Principal": {
          "Federated": "arn:aws:iam::${<aws_account_id>}:oidc-provider/${<oidc_provider>}" 1
        },
        "Action": "sts:AssumeRoleWithWebIdentity",
        "Condition": {
          "StringEquals": {
            "${OIDC_PROVIDER}:sub": [
              "system:serviceaccount:${<openshift_project_for_tempostack>}:tempo-${<tempostack_cr_name>}" 2
              "system:serviceaccount:${<openshift_project_for_tempostack>}:tempo-${<tempostack_cr_name>}-query-frontend"
           ]
         }
       }
     }
    ]
}

1: OIDC provider that you have configured on the OpenShift Container Platform. You can get the configured OIDC provider value also by running the following command: $ oc get authentication cluster -o json | jq -r '.spec.serviceAccountIssuer' | sed 's_http[s]*://~g'.
2: Namespace in which you intend to create the TempoStack instance.

Create an AWS IAM role by attaching the trust.json policy file that you created:

$ aws iam create-role \
      --role-name "tempo-s3-access" \
      --assume-role-policy-document "file:///tmp/trust.json" \
      --query Role.Arn \
      --output text

Attach an AWS IAM policy to the created role:

$ aws iam attach-role-policy \
      --role-name "tempo-s3-access" \
      --policy-arn "arn:aws:iam::aws:policy/AmazonS3FullAccess"

In the OpenShift Container Platform, create an object storage secret with keys as follows:

apiVersion: v1
kind: Secret
metadata:
  name: minio-test
stringData:
  bucket: <s3_bucket_name>
  region: <s3_region>
  role_arn: <s3_role_arn>
type: Opaque

Additional resources

3.1.5. Additional resources

3.2. Configuring

The Tempo Operator uses a custom resource definition (CRD) file that defines the architecture and configuration settings for creating and deploying the distributed tracing platform (Tempo) resources. You can install the default configuration or modify the file.

3.2.1. Configuring back-end storage

For information about configuring the back-end storage, see Understanding persistent storage and the relevant configuration section for your chosen storage option.

3.2.2. Introduction to TempoStack configuration parameters

The TempoStack custom resource (CR) defines the architecture and settings for creating the distributed tracing platform (Tempo) resources. You can modify these parameters to customize your implementation to your business needs.

Example TempoStack CR

apiVersion: tempo.grafana.com/v1alpha1 1
kind: TempoStack 2
metadata: 3
  name: <name> 4
spec: 5
  storage: {} 6
  resources: {} 7
  replicationFactor: 1 8
  retention: {} 9
  template:
      distributor: {} 10
      ingester: {} 11
      compactor: {} 12
      querier: {} 13
      queryFrontend: {} 14
      gateway: {} 15
  limits: 16
    global:
      ingestion: {} 17
      query: {} 18
  observability: 19
    grafana: {}
    metrics: {}
    tracing: {}
  search: {} 20
managementState: managed 21

1: API version to use when creating the object.
2: Defines the kind of Kubernetes object to create.
3: Data that uniquely identifies the object, including a name string, UID, and optional namespace. OpenShift Container Platform automatically generates the UID and completes the namespace with the name of the project where the object is created.
4: Name of the TempoStack instance.
5: Contains all of the configuration parameters of the TempoStack instance. When a common definition for all Tempo components is required, define it in the spec section. When the definition relates to an individual component, place it in the spec.template.<component> section.
6: Storage is specified at instance deployment. See the installation page for information about storage options for the instance.
7: Defines the compute resources for the Tempo container.
8: Integer value for the number of ingesters that must acknowledge the data from the distributors before accepting a span.
9: Configuration options for retention of traces.
10: Configuration options for the Tempo distributor component.
11: Configuration options for the Tempo ingester component.
12: Configuration options for the Tempo compactor component.
13: Configuration options for the Tempo querier component.
14: Configuration options for the Tempo query-frontend component.
15: Configuration options for the Tempo gateway component.
16: Limits ingestion and query rates.
17: Defines ingestion rate limits.
18: Defines query rate limits.
19: Configures operands to handle telemetry data.
20: Configures search capabilities.
21: Defines whether or not this CR is managed by the Operator. The default value is managed.

Additional resources

Installing a TempoStack instance
Installing a TempoMonolithic instance

3.2.3. Query configuration options

Two components of the distributed tracing platform (Tempo), the querier and query frontend, manage queries. You can configure both of these components.

The querier component finds the requested trace ID in the ingesters or back-end storage. Depending on the set parameters, the querier component can query both the ingesters and pull bloom or indexes from the back end to search blocks in object storage. The querier component exposes an HTTP endpoint at GET /querier/api/traces/<trace_id>, but it is not expected to be used directly. Queries must be sent to the query frontend.

Table 3.2. Configuration parameters for the querier component
Parameter	Description	Values
`nodeSelector`	The simple form of the node-selection constraint.	type: object
`replicas`	The number of replicas to be created for the component.	type: integer; format: int32
`tolerations`	Component-specific pod tolerations.	type: array

The query frontend component is responsible for sharding the search space for an incoming query. The query frontend exposes traces via a simple HTTP endpoint: GET /api/traces/<trace_id>. Internally, the query frontend component splits the blockID space into a configurable number of shards and then queues these requests. The querier component connects to the query frontend component via a streaming gRPC connection to process these sharded queries.

Table 3.3. Configuration parameters for the query frontend component
Parameter	Description	Values
`component`	Configuration of the query frontend component.	type: object
`component.nodeSelector`	The simple form of the node selection constraint.	type: object
`component.replicas`	The number of replicas to be created for the query frontend component.	type: integer; format: int32
`component.tolerations`	Pod tolerations specific to the query frontend component.	type: array
`jaegerQuery`	The options specific to the Jaeger Query component.	type: object
`jaegerQuery.enabled`	When `enabled`, creates the Jaeger Query component,`jaegerQuery`.	type: boolean
`jaegerQuery.ingress`	The options for the Jaeger Query ingress.	type: object
`jaegerQuery.ingress.annotations`	The annotations of the ingress object.	type: object
`jaegerQuery.ingress.host`	The hostname of the ingress object.	type: string
`jaegerQuery.ingress.ingressClassName`	The name of an IngressClass cluster resource. Defines which ingress controller serves this ingress resource.	type: string
`jaegerQuery.ingress.route`	The options for the OpenShift route.	type: object
`jaegerQuery.ingress.route.termination`	The termination type. The default is `edge`.	type: string (enum: insecure, edge, passthrough, reencrypt)
`jaegerQuery.ingress.type`	The type of ingress for the Jaeger Query UI. The supported types are `ingress`, `route`, and `none`.	type: string (enum: ingress, route)
`jaegerQuery.monitorTab`	The monitor tab configuration.	type: object
`jaegerQuery.monitorTab.enabled`	Enables the monitor tab in the Jaeger console. The `PrometheusEndpoint` must be configured.	type: boolean
`jaegerQuery.monitorTab.prometheusEndpoint`	The endpoint to the Prometheus instance that contains the span rate, error, and duration (RED) metrics. For example, `https://thanos-querier.openshift-monitoring.svc.cluster.local:9091`.	type: string

Example configuration of the query frontend component in a TempoStack CR

apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: simplest
spec:
  storage:
    secret:
      name: minio
      type: s3
  storageSize: 200M
  resources:
    total:
      limits:
        memory: 2Gi
        cpu: 2000m
  template:
    queryFrontend:
      jaegerQuery:
        enabled: true
        ingress:
          route:
            termination: edge
          type: route

Additional resources

Understanding taints and tolerations

3.2.4. Configuration of the monitor tab in Jaeger UI

Trace data contains rich information, and the data is normalized across instrumented languages and frameworks. Therefore, request rate, error, and duration (RED) metrics can be extracted from traces. The metrics can be visualized in Jaeger console in the Monitor tab.

The metrics are derived from spans in the OpenTelemetry Collector that are scraped from the Collector by the Prometheus deployed in the user-workload monitoring stack. The Jaeger UI queries these metrics from the Prometheus endpoint and visualizes them.

3.2.4.1. OpenTelemetry Collector configuration

The OpenTelemetry Collector requires configuration of the spanmetrics connector that derives metrics from traces and exports the metrics in the Prometheus format.

OpenTelemetry Collector custom resource for span RED

kind: OpenTelemetryCollector
apiVersion: opentelemetry.io/v1alpha1
metadata:
  name: otel
spec:
  mode: deployment
  observability:
    metrics:
      enableMetrics: true 1
  config: |
    connectors:
      spanmetrics: 2
        metrics_flush_interval: 15s

    receivers:
      otlp: 3
        protocols:
          grpc:
          http:

    exporters:
      prometheus: 4
        endpoint: 0.0.0.0:8889
        add_metric_suffixes: false
        resource_to_telemetry_conversion:
          enabled: true # by default resource attributes are dropped

      otlp:
        endpoint: "tempo-simplest-distributor:4317"
        tls:
          insecure: true

    service:
      pipelines:
        traces:
          receivers: [otlp]
          exporters: [otlp, spanmetrics] 5
        metrics:
          receivers: [spanmetrics] 6
          exporters: [prometheus]

1: Creates the ServiceMonitor custom resource to enable scraping of the Prometheus exporter.
2: The Spanmetrics connector receives traces and exports metrics.
3: The OTLP receiver to receive spans in the OpenTelemetry protocol.
4: The Prometheus exporter is used to export metrics in the Prometheus format.
5: The Spanmetrics connector is configured as exporter in traces pipeline.
6: The Spanmetrics connector is configured as receiver in metrics pipeline.

3.2.4.2. Tempo configuration

The TempoStack custom resource must specify the following: the Monitor tab is enabled, and the Prometheus endpoint is set to the Thanos querier service to query the data from the user-defined monitoring stack.

TempoStack custom resource with the enabled Monitor tab

apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: redmetrics
spec:
  storage:
    secret:
      name: minio-test
      type: s3
  storageSize: 1Gi
  template:
    gateway:
      enabled: false
    queryFrontend:
      jaegerQuery:
        enabled: true
        monitorTab:
          enabled: true 1
          prometheusEndpoint: https://thanos-querier.openshift-monitoring.svc.cluster.local:9091 2
        ingress:
          type: route

1: Enables the monitoring tab in the Jaeger console.
2: The service name for Thanos Querier from user-workload monitoring.

3.2.4.3. Span RED metrics and alerting rules

The metrics generated by the spanmetrics connector are usable with alerting rules. For example, for alerts about a slow service or to define service level objectives (SLOs), the connector creates a duration_bucket histogram and the calls counter metric. These metrics have labels that identify the service, API name, operation type, and other attributes.

Table 3.4. Labels of the metrics created in the spanmetrics connector
Label	Description	Values
`service_name`	Service name set by the `otel_service_name` environment variable.	`frontend`
`span_name`	Name of the operation.	`/` `/customer`
`span_kind`	Identifies the server, client, messaging, or internal operation.	`SPAN_KIND_SERVER` `SPAN_KIND_CLIENT` `SPAN_KIND_PRODUCER` `SPAN_KIND_CONSUMER` `SPAN_KIND_INTERNAL`

Example PrometheusRule CR that defines an alerting rule for SLO when not serving 95% of requests within 2000ms on the front-end service

apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: span-red
spec:
  groups:
  - name: server-side-latency
    rules:
    - alert: SpanREDFrontendAPIRequestLatency
      expr: histogram_quantile(0.95, sum(rate(duration_bucket{service_name="frontend", span_kind="SPAN_KIND_SERVER"}[5m])) by (le, service_name, span_name)) > 2000 1
      labels:
        severity: Warning
      annotations:
        summary: "High request latency on {{$labels.service_name}} and {{$labels.span_name}}"
        description: "{{$labels.instance}} has 95th request latency above 2s (current value: {{$value}}s)"

1: The expression for checking if 95% of the front-end server response time values are below 2000 ms. The time range ([5m]) must be at least four times the scrape interval and long enough to accommodate a change in the metric.

3.2.5. Configuring the receiver TLS

The custom resource of your TempoStack or TempoMonolithic instance supports configuring the TLS for receivers by using user-provided certificates or OpenShift’s service serving certificates.

3.2.5.1. Receiver TLS configuration for a TempoStack instance

You can provide a TLS certificate in a secret or use the service serving certificates that are generated by OpenShift Container Platform.

To provide a TLS certificate in a secret, configure it in the TempoStack custom resource.
Note
This feature is not supported with the enabled Tempo Gateway.
TLS for receivers and using a user-provided certificate in a secret
```
apiVersion: tempo.grafana.com/v1alpha1
kind:  TempoStack
# ...
spec:
# ...
  template:
    distributor:
      tls:
        enabled: true 1
        certName: <tls_secret> 2
        caName: <ca_name> 3
# ...
```
1
TLS enabled at the Tempo Distributor.
2
Secret containing a tls.key key and tls.crt certificate that you apply in advance.
3
Optional: CA in a config map to enable mutual TLS authentication (mTLS).
Alternatively, you can use the service serving certificates that are generated by OpenShift Container Platform.
Note
Mutual TLS authentication (mTLS) is not supported with this feature.
TLS for receivers and using the service serving certificates that are generated by OpenShift Container Platform
```
apiVersion: tempo.grafana.com/v1alpha1
kind:  TempoStack
# ...
spec:
# ...
  template:
    distributor:
      tls:
        enabled: true 1
# ...
```
1
Sufficient configuration for the TLS at the Tempo Distributor.

Additional resources

3.2.5.2. Receiver TLS configuration for a TempoMonolithic instance

You can provide a TLS certificate in a secret or use the service serving certificates that are generated by OpenShift Container Platform.

To provide a TLS certificate in a secret, configure it in the TempoMonolithic custom resource.
Note
This feature is not supported with the enabled Tempo Gateway.
TLS for receivers and using a user-provided certificate in a secret
```
apiVersion: tempo.grafana.com/v1alpha1
kind:  TempoMonolithic
# ...
  spec:
# ...
  ingestion:
    otlp:
      grpc:
        tls:
          enabled: true 1
          certName: <tls_secret> 2
          caName: <ca_name> 3
# ...
```
1
TLS enabled at the Tempo Distributor.
2
Secret containing a tls.key key and tls.crt certificate that you apply in advance.
3
Optional: CA in a config map to enable mutual TLS authentication (mTLS).
Alternatively, you can use the service serving certificates that are generated by OpenShift Container Platform.
Note
Mutual TLS authentication (mTLS) is not supported with this feature.
TLS for receivers and using the service serving certificates that are generated by OpenShift Container Platform
```
apiVersion: tempo.grafana.com/v1alpha1
kind:  TempoMonolithic
# ...
  spec:
# ...
  ingestion:
    otlp:
      grpc:
        tls:
          enabled: true
      http:
        tls:
          enabled: true 1
# ...
```
1
Minimal configuration for the TLS at the Tempo Distributor.

Additional resources

3.2.6. Multitenancy

Multitenancy with authentication and authorization is provided in the Tempo Gateway service. The authentication uses OpenShift OAuth and the Kubernetes TokenReview API. The authorization uses the Kubernetes SubjectAccessReview API.

Note

The Tempo Gateway service supports ingestion of traces only via the OTLP/gRPC. The OTLP/HTTP is not supported.

Sample Tempo CR with two tenants, dev and prod

apiVersion: tempo.grafana.com/v1alpha1
kind:  TempoStack
metadata:
  name: simplest
  namespace: chainsaw-multitenancy
spec:
  storage:
    secret:
      name: minio
      type: s3
  storageSize: 1Gi
  resources:
    total:
      limits:
        memory: 2Gi
        cpu: 2000m
  tenants:
    mode: openshift 1
    authentication: 2
      - tenantName: dev 3
        tenantId: "1610b0c3-c509-4592-a256-a1871353dbfa" 4
      - tenantName: prod
        tenantId: "1610b0c3-c509-4592-a256-a1871353dbfb"
  template:
    gateway:
      enabled: true 5
    queryFrontend:
      jaegerQuery:
        enabled: true

1: Must be set to openshift.
2: The list of tenants.
3: The tenant name. Must be provided in the X-Scope-OrgId header when ingesting the data.
4: A unique tenant ID.
5: Enables a gateway that performs authentication and authorization. The Jaeger UI is exposed at http://<gateway-ingress>/api/traces/v1/<tenant-name>/search.

The authorization configuration uses the ClusterRole and ClusterRoleBinding of the Kubernetes Role-Based Access Control (RBAC). By default, no users have read or write permissions.

Sample of the read RBAC configuration that allows authenticated users to read the trace data of the dev and prod tenants

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: tempostack-traces-reader
rules:
  - apiGroups:
      - 'tempo.grafana.com'
    resources: 1
      - dev
      - prod
    resourceNames:
      - traces
    verbs:
      - 'get' 2
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: tempostack-traces-reader
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: tempostack-traces-reader
subjects:
  - kind: Group
    apiGroup: rbac.authorization.k8s.io
    name: system:authenticated 3

1: Lists the tenants.
2: The get value enables the read operation.
3: Grants all authenticated users the read permissions for trace data.

Sample of the write RBAC configuration that allows the otel-collector service account to write the trace data for the dev tenant

apiVersion: v1
kind: ServiceAccount
metadata:
  name: otel-collector 1
  namespace: otel
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: tempostack-traces-write
rules:
  - apiGroups:
      - 'tempo.grafana.com'
    resources: 2
      - dev
    resourceNames:
      - traces
    verbs:
      - 'create' 3
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: tempostack-traces
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: tempostack-traces-write
subjects:
  - kind: ServiceAccount
    name: otel-collector
    namespace: otel

1: The service account name for the client to use when exporting trace data. The client must send the service account token, /var/run/secrets/kubernetes.io/serviceaccount/token, as the bearer token header.
2: Lists the tenants.
3: The create value enables the write operation.

Trace data can be sent to the Tempo instance from the OpenTelemetry Collector that uses the service account with RBAC for writing the data.

Sample OpenTelemetry CR configuration

apiVersion: opentelemetry.io/v1alpha1
kind: OpenTelemetryCollector
metadata:
  name: cluster-collector
  namespace: tracing-system
spec:
  mode: deployment
  serviceAccount: otel-collector
  config: |
      extensions:
        bearertokenauth:
          filename: "/var/run/secrets/kubernetes.io/serviceaccount/token"
      exporters:
        otlp/dev: 1
          endpoint: tempo-simplest-gateway.tempo.svc.cluster.local:8090
          tls:
            insecure: false
            ca_file: "/var/run/secrets/kubernetes.io/serviceaccount/service-ca.crt"
          auth:
            authenticator: bearertokenauth
          headers:
            X-Scope-OrgID: "dev"
        otlphttp/dev: 2
          endpoint: https://tempo-simplest-gateway.chainsaw-multitenancy.svc.cluster.local:8080/api/traces/v1/dev
          tls:
            insecure: false
            ca_file: "/var/run/secrets/kubernetes.io/serviceaccount/service-ca.crt"
          auth:
            authenticator: bearertokenauth
          headers:
            X-Scope-OrgID: "dev"
      service:
        extensions: [bearertokenauth]
        pipelines:
          traces:
            exporters: [otlp/dev] 3

1: OTLP gRPC Exporter.
2: OTLP HTTP Exporter.
3: You can specify otlp/dev for the OTLP gRPC Exporter or otlphttp/dev for the OTLP HTTP Exporter.

3.2.7. Using taints and tolerations

To schedule the TempoStack pods on dedicated nodes, see How to deploy the different TempoStack components on infra nodes using nodeSelector and tolerations in OpenShift 4.

3.2.8. Configuring monitoring and alerts

The Tempo Operator supports monitoring and alerts about each TempoStack component such as distributor, ingester, and so on, and exposes upgrade and operational metrics about the Operator itself.

3.2.8.1. Configuring the TempoStack metrics and alerts

You can enable metrics and alerts of TempoStack instances.

Prerequisites

Monitoring for user-defined projects is enabled in the cluster.

Procedure

To enable metrics of a TempoStack instance, set the spec.observability.metrics.createServiceMonitors field to true:

apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: <name>
spec:
  observability:
    metrics:
      createServiceMonitors: true

To enable alerts for a TempoStack instance, set the spec.observability.metrics.createPrometheusRules field to true:

apiVersion: tempo.grafana.com/v1alpha1
kind: TempoStack
metadata:
  name: <name>
spec:
  observability:
    metrics:
      createPrometheusRules: true

Verification

You can use the Administrator view of the web console to verify successful configuration:

Go to Observe → Targets, filter for Source: User, and check that ServiceMonitors in the format tempo-<instance_name>-<component> have the Up status.
To verify that alerts are set up correctly, go to Observe → Alerting → Alerting rules, filter for Source: User, and check that the Alert rules for the TempoStack instance components are available.

Additional resources

Enabling monitoring for user-defined projects

3.2.8.2. Configuring the Tempo Operator metrics and alerts

When installing the Tempo Operator from the web console, you can select the Enable Operator recommended cluster monitoring on this Namespace checkbox, which enables creating metrics and alerts of the Tempo Operator.

If the checkbox was not selected during installation, you can manually enable metrics and alerts even after installing the Tempo Operator.

Procedure

Add the openshift.io/cluster-monitoring: "true" label in the project where the Tempo Operator is installed, which is openshift-tempo-operator by default.

Verification

You can use the Administrator view of the web console to verify successful configuration:

Go to Observe → Targets, filter for Source: Platform, and search for tempo-operator, which must have the Up status.
To verify that alerts are set up correctly, go to Observe → Alerting → Alerting rules, filter for Source: Platform, and locate the Alert rules for the Tempo Operator.

3.3. Upgrading

For version upgrades, the Tempo Operator uses the Operator Lifecycle Manager (OLM), which controls installation, upgrade, and role-based access control (RBAC) of Operators in a cluster.

The OLM runs in the OpenShift Container Platform by default. The OLM queries for available Operators as well as upgrades for installed Operators.

When the Tempo Operator is upgraded to the new version, it scans for running TempoStack instances that it manages and upgrades them to the version corresponding to the Operator’s new version.

3.3.1. Additional resources

3.4. Removing

The steps for removing the Red Hat OpenShift distributed tracing platform (Tempo) from an OpenShift Container Platform cluster are as follows:

Shut down all distributed tracing platform (Tempo) pods.
Remove any TempoStack instances.
Remove the Tempo Operator.

3.4.1. Removing by using the web console

You can remove a TempoStack instance in the Administrator view of the web console.

Prerequisites

You are logged in to the OpenShift Container Platform web console as a cluster administrator with the cluster-admin role.
For Red Hat OpenShift Dedicated, you must be logged in using an account with the dedicated-admin role.

Procedure

Go to Operators → Installed Operators → Tempo Operator → TempoStack.
To remove the TempoStack instance, select → Delete TempoStack → Delete.
Optional: Remove the Tempo Operator.

3.4.2. Removing by using the CLI

You can remove a TempoStack instance on the command line.

Prerequisites

An active OpenShift CLI (oc) session by a cluster administrator with the cluster-admin role.
Tip
- Ensure that your OpenShift CLI (oc) version is up to date and matches your OpenShift Container Platform version.
- Run oc login:
  $ oc login --username=<your_username>

Procedure

Get the name of the TempoStack instance by running the following command:
```
$ oc get deployments -n <project_of_tempostack_instance>
```

Remove the TempoStack instance by running the following command:

$ oc delete tempo <tempostack_instance_name> -n <project_of_tempostack_instance>

Optional: Remove the Tempo Operator.

Verification

Run the following command to verify that the TempoStack instance is not found in the output, which indicates its successful removal:
```
$ oc get deployments -n <project_of_tempostack_instance>
```

3.4.3. Additional resources

Chapter 4. Distributed tracing platform (Jaeger)

4.1. Installing

Important

The Red Hat OpenShift distributed tracing platform (Jaeger) is a deprecated feature. Deprecated functionality is still included in OpenShift Container Platform and continues to be supported; however, it will be removed in a future release of this product and is not recommended for new deployments.

For the most recent list of major functionality that has been deprecated or removed within OpenShift Container Platform, refer to the Deprecated and removed features section of the OpenShift Container Platform release notes.

You can install Red Hat OpenShift distributed tracing platform on OpenShift Container Platform in either of two ways:

You can install Red Hat OpenShift distributed tracing platform as part of Red Hat OpenShift Service Mesh. Distributed tracing is included by default in the Service Mesh installation. To install Red Hat OpenShift distributed tracing platform as part of a service mesh, follow the Red Hat Service Mesh Installation instructions. You must install Red Hat OpenShift distributed tracing platform in the same namespace as your service mesh, that is, the ServiceMeshControlPlane and the Red Hat OpenShift distributed tracing platform resources must be in the same namespace.
If you do not want to install a service mesh, you can use the Red Hat OpenShift distributed tracing platform Operators to install distributed tracing platform by itself. To install Red Hat OpenShift distributed tracing platform without a service mesh, use the following instructions.

4.1.1. Prerequisites

Before you can install Red Hat OpenShift distributed tracing platform, review the installation activities, and ensure that you meet the prerequisites:

Possess an active OpenShift Container Platform subscription on your Red Hat account. If you do not have a subscription, contact your sales representative for more information.
Review the OpenShift Container Platform 4.14 overview.
Install OpenShift Container Platform 4.14.
Install the version of the oc CLI tool that matches your OpenShift Container Platform version and add it to your path.
An account with the cluster-admin role.

4.1.2. Red Hat OpenShift distributed tracing platform installation overview

The steps for installing Red Hat OpenShift distributed tracing platform are as follows:

Review the documentation and determine your deployment strategy.
If your deployment strategy requires persistent storage, install the OpenShift Elasticsearch Operator via the OperatorHub.
Install the Red Hat OpenShift distributed tracing platform (Jaeger) Operator via the OperatorHub.
Modify the custom resource YAML file to support your deployment strategy.
Deploy one or more instances of Red Hat OpenShift distributed tracing platform (Jaeger) to your OpenShift Container Platform environment.

4.1.3. Installing the OpenShift Elasticsearch Operator

The default Red Hat OpenShift distributed tracing platform (Jaeger) deployment uses in-memory storage because it is designed to be installed quickly for those evaluating Red Hat OpenShift distributed tracing platform, giving demonstrations, or using Red Hat OpenShift distributed tracing platform (Jaeger) in a test environment. If you plan to use Red Hat OpenShift distributed tracing platform (Jaeger) in production, you must install and configure a persistent storage option, in this case, Elasticsearch.

Prerequisites

You have access to the OpenShift Container Platform web console.
You have access to the cluster as a user with the cluster-admin role. If you use Red Hat OpenShift Dedicated, you must have an account with the dedicated-admin role.

Warning

Do not install Community versions of the Operators. Community Operators are not supported.

Note

If you have already installed the OpenShift Elasticsearch Operator as part of OpenShift Logging, you do not need to install the OpenShift Elasticsearch Operator again. The Red Hat OpenShift distributed tracing platform (Jaeger) Operator creates the Elasticsearch instance using the installed OpenShift Elasticsearch Operator.

Procedure

Log in to the OpenShift Container Platform web console as a user with the cluster-admin role. If you use Red Hat OpenShift Dedicated, you must have an account with the dedicated-admin role.
Navigate to Operators → OperatorHub.
Type Elasticsearch into the filter box to locate the OpenShift Elasticsearch Operator.
Click the OpenShift Elasticsearch Operator provided by Red Hat to display information about the Operator.
Click Install.
On the Install Operator page, select the stable Update Channel. This automatically updates your Operator as new versions are released.
Accept the default All namespaces on the cluster (default). This installs the Operator in the default openshift-operators-redhat project and makes the Operator available to all projects in the cluster.
Note
The Elasticsearch installation requires the openshift-operators-redhat namespace for the OpenShift Elasticsearch Operator. The other Red Hat OpenShift distributed tracing platform Operators are installed in the openshift-operators namespace.
Accept the default Automatic approval strategy. By accepting the default, when a new version of this Operator is available, Operator Lifecycle Manager (OLM) automatically upgrades the running instance of your Operator without human intervention. If you select Manual updates, when a newer version of an Operator is available, OLM creates an update request. As a cluster administrator, you must then manually approve that update request to have the Operator updated to the new version.
Note
The Manual approval strategy requires a user with appropriate credentials to approve the Operator install and subscription process.
Click Install.
On the Installed Operators page, select the openshift-operators-redhat project. Wait for the InstallSucceeded status of the OpenShift Elasticsearch Operator before continuing.

4.1.4. Installing the Red Hat OpenShift distributed tracing platform Operator

You can install the Red Hat OpenShift distributed tracing platform Operator through the OperatorHub.

By default, the Operator is installed in the openshift-operators project.

Prerequisites

You have access to the OpenShift Container Platform web console.
You have access to the cluster as a user with the cluster-admin role. If you use Red Hat OpenShift Dedicated, you must have an account with the dedicated-admin role.
If you require persistent storage, you must install the OpenShift Elasticsearch Operator before installing the Red Hat OpenShift distributed tracing platform Operator.

Procedure

Log in to the OpenShift Container Platform web console as a user with the cluster-admin role. If you use Red Hat OpenShift Dedicated, you must have an account with the dedicated-admin role.
Navigate to Operators → OperatorHub.
Search for the Red Hat OpenShift distributed tracing platform Operator by entering distributed tracing platform in the search field.
Select the Red Hat OpenShift distributed tracing platform Operator, which is provided by Red Hat, to display information about the Operator.
Click Install.
For the Update channel on the Install Operator page, select stable to automatically update the Operator when new versions are released.
Accept the default All namespaces on the cluster (default). This installs the Operator in the default openshift-operators project and makes the Operator available to all projects in the cluster.
Accept the default Automatic approval strategy.
Note
If you accept this default, the Operator Lifecycle Manager (OLM) automatically upgrades the running instance of this Operator when a new version of the Operator becomes available.
If you select Manual updates, the OLM creates an update request when a new version of the Operator becomes available. To update the Operator to the new version, you must then manually approve the update request as a cluster administrator. The Manual approval strategy requires a cluster administrator to manually approve Operator installation and subscription.
Click Install.
Navigate to Operators → Installed Operators.
On the Installed Operators page, select the openshift-operators project. Wait for the Succeeded status of the Red Hat OpenShift distributed tracing platform Operator before continuing.

4.2. Configuring

Important

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator uses a custom resource definition (CRD) file that defines the architecture and configuration settings to be used when creating and deploying the distributed tracing platform (Jaeger) resources. You can install the default configuration or modify the file.

If you have installed distributed tracing platform as part of Red Hat OpenShift Service Mesh, you can perform basic configuration as part of the ServiceMeshControlPlane, but for complete control, you must configure a Jaeger CR and then reference your distributed tracing configuration file in the ServiceMeshControlPlane.

The Red Hat OpenShift distributed tracing platform (Jaeger) has predefined deployment strategies. You specify a deployment strategy in the custom resource file. When you create a distributed tracing platform (Jaeger) instance, the Operator uses this configuration file to create the objects necessary for the deployment.

Jaeger custom resource file showing deployment strategy

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: MyConfigFile
spec:
  strategy: production 1

1: Deployment strategy.

4.2.1. Supported deployment strategies

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator currently supports the following deployment strategies:

allInOne

- This strategy is intended for development, testing, and demo purposes; it is not intended for production use. The main backend components, Agent, Collector, and Query service, are all packaged into a single executable which is configured, by default. to use in-memory storage.

Note

In-memory storage is not persistent, which means that if the distributed tracing platform (Jaeger) instance shuts down, restarts, or is replaced, that your trace data will be lost. And in-memory storage cannot be scaled, since each pod has its own memory. For persistent storage, you must use the production or streaming strategies, which use Elasticsearch as the default storage.

production

The production strategy is intended for production environments, where long term storage of trace data is important, as well as a more scalable and highly available architecture is required. Each of the backend components is therefore deployed separately. The Agent can be injected as a sidecar on the instrumented application. The Query and Collector services are configured with a supported storage type - currently Elasticsearch. Multiple instances of each of these components can be provisioned as required for performance and resilience purposes.

streaming

The streaming strategy is designed to augment the production strategy by providing a streaming capability that effectively sits between the Collector and the Elasticsearch backend storage. This provides the benefit of reducing the pressure on the backend storage, under high load situations, and enables other trace post-processing capabilities to tap into the real time span data directly from the streaming platform (AMQ Streams/ Kafka).

Note

The streaming strategy requires an additional Red Hat subscription for AMQ Streams.
The streaming deployment strategy is currently unsupported on IBM Z®.

4.2.2. Deploying the distributed tracing platform default strategy from the web console

The custom resource definition (CRD) defines the configuration used when you deploy an instance of Red Hat OpenShift distributed tracing platform. The default CR is named jaeger-all-in-one-inmemory and it is configured with minimal resources to ensure that you can successfully install it on a default OpenShift Container Platform installation. You can use this default configuration to create a Red Hat OpenShift distributed tracing platform (Jaeger) instance that uses the AllInOne deployment strategy, or you can define your own custom resource file.

Note

In-memory storage is not persistent. If the Jaeger pod shuts down, restarts, or is replaced, your trace data will be lost. For persistent storage, you must use the production or streaming strategies, which use Elasticsearch as the default storage.

Prerequisites

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been installed.
You have reviewed the instructions for how to customize the deployment.
You have access to the cluster as a user with the cluster-admin role.

Procedure

Log in to the OpenShift Container Platform web console as a user with the cluster-admin role.
Create a new project, for example tracing-system.
Note
If you are installing as part of Service Mesh, the distributed tracing platform resources must be installed in the same namespace as the ServiceMeshControlPlane resource, for example istio-system.
1. Go to Home → Projects.
2. Click Create Project.
3. Enter tracing-system in the Name field.
4. Click Create.
Navigate to Operators → Installed Operators.
If necessary, select tracing-system from the Project menu. You may have to wait a few moments for the Operators to be copied to the new project.
Click the Red Hat OpenShift distributed tracing platform (Jaeger) Operator. On the Details tab, under Provided APIs, the Operator provides a single link.
Under Jaeger, click Create Instance.
On the Create Jaeger page, to install using the defaults, click Create to create the distributed tracing platform (Jaeger) instance.
On the Jaegers page, click the name of the distributed tracing platform (Jaeger) instance, for example, jaeger-all-in-one-inmemory.
On the Jaeger Details page, click the Resources tab. Wait until the pod has a status of "Running" before continuing.

4.2.2.1. Deploying the distributed tracing platform default strategy from the CLI

Follow this procedure to create an instance of distributed tracing platform (Jaeger) from the command line.

Prerequisites

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been installed and verified.
You have reviewed the instructions for how to customize the deployment.
You have access to the OpenShift CLI (oc) that matches your OpenShift Container Platform version.
You have access to the cluster as a user with the cluster-admin role.

Procedure

Log in to the OpenShift Container Platform CLI as a user with the cluster-admin role by running the following command:
```
$ oc login --username=<NAMEOFUSER> https://<HOSTNAME>:8443
```
Create a new project named tracing-system by running the following command:
```
$ oc new-project tracing-system
```
Create a custom resource file named jaeger.yaml that contains the following text:
Example jaeger-all-in-one.yaml
```
apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: jaeger-all-in-one-inmemory
```
Run the following command to deploy distributed tracing platform (Jaeger):
```
$ oc create -n tracing-system -f jaeger.yaml
```

Run the following command to watch the progress of the pods during the installation process:

$ oc get pods -n tracing-system -w

After the installation process has completed, the output is similar to the following example:

NAME                                         READY   STATUS    RESTARTS   AGE
jaeger-all-in-one-inmemory-cdff7897b-qhfdx   2/2     Running   0          24s

4.2.3. Deploying the distributed tracing platform production strategy from the web console

The production deployment strategy is intended for production environments that require a more scalable and highly available architecture, and where long-term storage of trace data is important.

Prerequisites

The OpenShift Elasticsearch Operator has been installed.
The Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been installed.
You have reviewed the instructions for how to customize the deployment.
You have access to the cluster as a user with the cluster-admin role.

Procedure

Log in to the OpenShift Container Platform web console as a user with the cluster-admin role.
Create a new project, for example tracing-system.
Note
If you are installing as part of Service Mesh, the distributed tracing platform resources must be installed in the same namespace as the ServiceMeshControlPlane resource, for example istio-system.
1. Navigate to Home → Projects.
2. Click Create Project.
3. Enter tracing-system in the Name field.
4. Click Create.
Navigate to Operators → Installed Operators.
If necessary, select tracing-system from the Project menu. You may have to wait a few moments for the Operators to be copied to the new project.
Click the Red Hat OpenShift distributed tracing platform (Jaeger) Operator. On the Overview tab, under Provided APIs, the Operator provides a single link.
Under Jaeger, click Create Instance.

On the Create Jaeger page, replace the default all-in-one YAML text with your production YAML configuration, for example:

Example jaeger-production.yaml file with Elasticsearch

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: jaeger-production
  namespace:
spec:
  strategy: production
  ingress:
    security: oauth-proxy
  storage:
    type: elasticsearch
    elasticsearch:
      nodeCount: 3
      redundancyPolicy: SingleRedundancy
    esIndexCleaner:
      enabled: true
      numberOfDays: 7
      schedule: 55 23 * * *
    esRollover:
      schedule: '*/30 * * * *'

Click Create to create the distributed tracing platform (Jaeger) instance.
On the Jaegers page, click the name of the distributed tracing platform (Jaeger) instance, for example, jaeger-prod-elasticsearch.
On the Jaeger Details page, click the Resources tab. Wait until all the pods have a status of "Running" before continuing.

4.2.3.1. Deploying the distributed tracing platform production strategy from the CLI

Follow this procedure to create an instance of distributed tracing platform (Jaeger) from the command line.

Prerequisites

The OpenShift Elasticsearch Operator has been installed.
The Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been installed.
You have reviewed the instructions for how to customize the deployment.
You have access to the OpenShift CLI (oc) that matches your OpenShift Container Platform version.
You have access to the cluster as a user with the cluster-admin role.

Procedure

Log in to the OpenShift CLI (oc) as a user with the cluster-admin role by running the following command:
```
$ oc login --username=<NAMEOFUSER> https://<HOSTNAME>:8443
```
Create a new project named tracing-system by running the following command:
```
$ oc new-project tracing-system
```
Create a custom resource file named jaeger-production.yaml that contains the text of the example file in the previous procedure.
Run the following command to deploy distributed tracing platform (Jaeger):
```
$ oc create -n tracing-system -f jaeger-production.yaml
```

Run the following command to watch the progress of the pods during the installation process:

$ oc get pods -n tracing-system -w

After the installation process has completed, you will see output similar to the following example:

NAME                                                              READY   STATUS    RESTARTS   AGE
elasticsearch-cdm-jaegersystemjaegerproduction-1-6676cf568gwhlw   2/2     Running   0          10m
elasticsearch-cdm-jaegersystemjaegerproduction-2-bcd4c8bf5l6g6w   2/2     Running   0          10m
elasticsearch-cdm-jaegersystemjaegerproduction-3-844d6d9694hhst   2/2     Running   0          10m
jaeger-production-collector-94cd847d-jwjlj                        1/1     Running   3          8m32s
jaeger-production-query-5cbfbd499d-tv8zf                          3/3     Running   3          8m32s

4.2.4. Deploying the distributed tracing platform streaming strategy from the web console

The streaming deployment strategy is intended for production environments that require a more scalable and highly available architecture, and where long-term storage of trace data is important.

The streaming strategy provides a streaming capability that sits between the Collector and the Elasticsearch storage. This reduces the pressure on the storage under high load situations, and enables other trace post-processing capabilities to tap into the real-time span data directly from the Kafka streaming platform.

Note

The streaming strategy requires an additional Red Hat subscription for AMQ Streams. If you do not have an AMQ Streams subscription, contact your sales representative for more information.

Note

The streaming deployment strategy is currently unsupported on IBM Z®.

Prerequisites

The AMQ Streams Operator has been installed. If using version 1.4.0 or higher you can use self-provisioning. Otherwise you must create the Kafka instance.
The Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been installed.
You have reviewed the instructions for how to customize the deployment.
You have access to the cluster as a user with the cluster-admin role.

Procedure

Log in to the OpenShift Container Platform web console as a user with the cluster-admin role.
Create a new project, for example tracing-system.
Note
If you are installing as part of Service Mesh, the distributed tracing platform resources must be installed in the same namespace as the ServiceMeshControlPlane resource, for example istio-system.
1. Navigate to Home → Projects.
2. Click Create Project.
3. Enter tracing-system in the Name field.
4. Click Create.
Navigate to Operators → Installed Operators.
If necessary, select tracing-system from the Project menu. You may have to wait a few moments for the Operators to be copied to the new project.
Click the Red Hat OpenShift distributed tracing platform (Jaeger) Operator. On the Overview tab, under Provided APIs, the Operator provides a single link.
Under Jaeger, click Create Instance.

On the Create Jaeger page, replace the default all-in-one YAML text with your streaming YAML configuration, for example:

Example jaeger-streaming.yaml file

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: jaeger-streaming
spec:
  strategy: streaming
  collector:
    options:
      kafka:
        producer:
          topic: jaeger-spans
          brokers: my-cluster-kafka-brokers.kafka:9092 1
  storage:
    type: elasticsearch
  ingester:
    options:
      kafka:
        consumer:
          topic: jaeger-spans
          brokers: my-cluster-kafka-brokers.kafka:9092

1: If the brokers are not defined, AMQStreams 1.4.0+ self-provisions Kafka.

Click Create to create the distributed tracing platform (Jaeger) instance.
On the Jaegers page, click the name of the distributed tracing platform (Jaeger) instance, for example, jaeger-streaming.
On the Jaeger Details page, click the Resources tab. Wait until all the pods have a status of "Running" before continuing.

4.2.4.1. Deploying the distributed tracing platform streaming strategy from the CLI

Follow this procedure to create an instance of distributed tracing platform (Jaeger) from the command line.

Prerequisites

The AMQ Streams Operator has been installed. If using version 1.4.0 or higher you can use self-provisioning. Otherwise you must create the Kafka instance.
The Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been installed.
You have reviewed the instructions for how to customize the deployment.
You have access to the OpenShift CLI (oc) that matches your OpenShift Container Platform version.
You have access to the cluster as a user with the cluster-admin role.

Procedure

Log in to the OpenShift CLI (oc) as a user with the cluster-admin role by running the following command:
```
$ oc login --username=<NAMEOFUSER> https://<HOSTNAME>:8443
```
Create a new project named tracing-system by running the following command:
```
$ oc new-project tracing-system
```
Create a custom resource file named jaeger-streaming.yaml that contains the text of the example file in the previous procedure.

Run the following command to deploy Jaeger:

$ oc create -n tracing-system -f jaeger-streaming.yaml

Run the following command to watch the progress of the pods during the installation process:

$ oc get pods -n tracing-system -w

After the installation process has completed, you should see output similar to the following example:

NAME                                                              READY   STATUS    RESTARTS   AGE
elasticsearch-cdm-jaegersystemjaegerstreaming-1-697b66d6fcztcnn   2/2     Running   0          5m40s
elasticsearch-cdm-jaegersystemjaegerstreaming-2-5f4b95c78b9gckz   2/2     Running   0          5m37s
elasticsearch-cdm-jaegersystemjaegerstreaming-3-7b6d964576nnz97   2/2     Running   0          5m5s
jaeger-streaming-collector-6f6db7f99f-rtcfm                       1/1     Running   0          80s
jaeger-streaming-entity-operator-6b6d67cc99-4lm9q                 3/3     Running   2          2m18s
jaeger-streaming-ingester-7d479847f8-5h8kc                        1/1     Running   0          80s
jaeger-streaming-kafka-0                                          2/2     Running   0          3m1s
jaeger-streaming-query-65bf5bb854-ncnc7                           3/3     Running   0          80s
jaeger-streaming-zookeeper-0                                      2/2     Running   0          3m39s

4.2.5. Validating your deployment

4.2.5.1. Accessing the Jaeger console

To access the Jaeger console you must have either Red Hat OpenShift Service Mesh or Red Hat OpenShift distributed tracing platform installed, and Red Hat OpenShift distributed tracing platform (Jaeger) installed, configured, and deployed.

The installation process creates a route to access the Jaeger console.

If you know the URL for the Jaeger console, you can access it directly. If you do not know the URL, use the following directions.

Procedure from the web console

Log in to the OpenShift Container Platform web console as a user with cluster-admin rights. If you use Red Hat OpenShift Dedicated, you must have an account with the dedicated-admin role.
Navigate to Networking → Routes.
On the Routes page, select the control plane project, for example tracing-system, from the Namespace menu.
The Location column displays the linked address for each route.
If necessary, use the filter to find the jaeger route. Click the route Location to launch the console.
Click Log In With OpenShift.

Procedure from the CLI

Log in to the OpenShift Container Platform CLI as a user with the cluster-admin role by running the following command. If you use Red Hat OpenShift Dedicated, you must have an account with the dedicated-admin role.
```
$ oc login --username=<NAMEOFUSER> https://<HOSTNAME>:6443
```
To query for details of the route using the command line, enter the following command. In this example, tracing-system is the control plane namespace.
```
$ export JAEGER_URL=$(oc get route -n tracing-system jaeger -o jsonpath='{.spec.host}')
```
Launch a browser and navigate to https://<JAEGER_URL>, where <JAEGER_URL> is the route that you discovered in the previous step.
Log in using the same user name and password that you use to access the OpenShift Container Platform console.
If you have added services to the service mesh and have generated traces, you can use the filters and Find Traces button to search your trace data.
If you are validating the console installation, there is no trace data to display.

4.2.6. Customizing your deployment

4.2.6.1. Deployment best practices

Red Hat OpenShift distributed tracing platform instance names must be unique. If you want to have multiple Red Hat OpenShift distributed tracing platform (Jaeger) instances and are using sidecar injected agents, then the Red Hat OpenShift distributed tracing platform (Jaeger) instances should have unique names, and the injection annotation should explicitly specify the Red Hat OpenShift distributed tracing platform (Jaeger) instance name the tracing data should be reported to.
If you have a multitenant implementation and tenants are separated by namespaces, deploy a Red Hat OpenShift distributed tracing platform (Jaeger) instance to each tenant namespace.

For information about configuring persistent storage, see Understanding persistent storage and the appropriate configuration topic for your chosen storage option.

4.2.6.2. Distributed tracing default configuration options

The Jaeger custom resource (CR) defines the architecture and settings to be used when creating the distributed tracing platform (Jaeger) resources. You can modify these parameters to customize your distributed tracing platform (Jaeger) implementation to your business needs.

Generic YAML example of the Jaeger CR

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: name
spec:
  strategy: <deployment_strategy>
  allInOne:
    options: {}
    resources: {}
  agent:
    options: {}
    resources: {}
  collector:
    options: {}
    resources: {}
  sampling:
    options: {}
  storage:
    type:
    options: {}
  query:
    options: {}
    resources: {}
  ingester:
    options: {}
    resources: {}
  options: {}

Table 4.1. Jaeger parameters
Parameter	Description	Values	Default value
`apiVersion:`	API version to use when creating the object.	`jaegertracing.io/v1`	`jaegertracing.io/v1`
`kind:`	Defines the kind of Kubernetes object to create.	`jaeger`
`metadata:`	Data that helps uniquely identify the object, including a `name` string, `UID`, and optional `namespace`.		OpenShift Container Platform automatically generates the `UID` and completes the `namespace` with the name of the project where the object is created.
`name:`	Name for the object.	The name of your distributed tracing platform (Jaeger) instance.	`jaeger-all-in-one-inmemory`
`spec:`	Specification for the object to be created.	Contains all of the configuration parameters for your distributed tracing platform (Jaeger) instance. When a common definition for all Jaeger components is required, it is defined under the `spec` node. When the definition relates to an individual component, it is placed under the `spec/<component>` node.	N/A
`strategy:`	Jaeger deployment strategy	`allInOne`, `production`, or `streaming`	`allInOne`
`allInOne:`	Because the `allInOne` image deploys the Agent, Collector, Query, Ingester, and Jaeger UI in a single pod, configuration for this deployment must nest component configuration under the `allInOne` parameter.
`agent:`	Configuration options that define the Agent.
`collector:`	Configuration options that define the Jaeger Collector.
`sampling:`	Configuration options that define the sampling strategies for tracing.
`storage:`	Configuration options that define the storage. All storage-related options must be placed under `storage`, rather than under the `allInOne` or other component options.
`query:`	Configuration options that define the Query service.
`ingester:`	Configuration options that define the Ingester service.

The following example YAML is the minimum required to create a Red Hat OpenShift distributed tracing platform (Jaeger) deployment using the default settings.

Example minimum required dist-tracing-all-in-one.yaml

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: jaeger-all-in-one-inmemory

4.2.6.3. Using taints and tolerations

To schedule the Jaeger and Elasticsearch pods on dedicated nodes, see How to deploy the different Jaeger components on infra nodes using nodeSelector and tolerations in OpenShift 4.

4.2.6.4. Jaeger Collector configuration options

The Jaeger Collector is the component responsible for receiving the spans that were captured by the tracer and writing them to persistent Elasticsearch storage when using the production strategy, or to AMQ Streams when using the streaming strategy.

The Collectors are stateless and thus many instances of Jaeger Collector can be run in parallel. Collectors require almost no configuration, except for the location of the Elasticsearch cluster.

Table 4.2. Parameters used by the Operator to define the Jaeger Collector
Parameter	Description	Values
collector: replicas:	Specifies the number of Collector replicas to create.	Integer, for example, `5`

Table 4.3. Configuration parameters passed to the Collector
Parameter	Description	Values
spec: collector: options: {}	Configuration options that define the Jaeger Collector.
options: collector: num-workers:	The number of workers pulling from the queue.	Integer, for example, `50`
options: collector: queue-size:	The size of the Collector queue.	Integer, for example, `2000`
options: kafka: producer: topic: jaeger-spans	The `topic` parameter identifies the Kafka configuration used by the Collector to produce the messages, and the Ingester to consume the messages.	Label for the producer.
options: kafka: producer: brokers: my-cluster-kafka-brokers.kafka:9092	Identifies the Kafka configuration used by the Collector to produce the messages. If brokers are not specified, and you have AMQ Streams 1.4.0+ installed, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator will self-provision Kafka.
options: log-level:	Logging level for the Collector.	Possible values: `debug`, `info`, `warn`, `error`, `fatal`, `panic`.
options: otlp: enabled: true grpc: host-port: 4317 max-connection-age: 0s max-connection-age-grace: 0s max-message-size: 4194304 tls: enabled: false cert: /path/to/cert.crt cipher-suites: "TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256" client-ca: /path/to/cert.ca reload-interval: 0s min-version: 1.2 max-version: 1.3	To accept OTLP/gRPC, explicitly enable the `otlp`. All the other options are optional.
options: otlp: enabled: true http: cors: allowed-headers: [<header-name>[, <header-name>]] allowed-origins: host-port: 4318 max-connection-age: 0s max-connection-age-grace: 0s max-message-size: 4194304 read-timeout: 0s read-header-timeout: 2s idle-timeout: 0s tls: enabled: false cert: /path/to/cert.crt cipher-suites: "TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256" client-ca: /path/to/cert.ca reload-interval: 0s min-version: 1.2 max-version: 1.3	To accept OTLP/HTTP, explicitly enable the `otlp`. All the other options are optional.

4.2.6.5. Distributed tracing sampling configuration options

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator can be used to define sampling strategies that will be supplied to tracers that have been configured to use a remote sampler.

While all traces are generated, only a few are sampled. Sampling a trace marks the trace for further processing and storage.

Note

This is not relevant if a trace was started by the Envoy proxy, as the sampling decision is made there. The Jaeger sampling decision is only relevant when the trace is started by an application using the client.

When a service receives a request that contains no trace context, the client starts a new trace, assigns it a random trace ID, and makes a sampling decision based on the currently installed sampling strategy. The sampling decision propagates to all subsequent requests in the trace so that other services are not making the sampling decision again.

distributed tracing platform (Jaeger) libraries support the following samplers:

Probabilistic - The sampler makes a random sampling decision with the probability of sampling equal to the value of the sampling.param property. For example, using sampling.param=0.1 samples approximately 1 in 10 traces.
Rate Limiting - The sampler uses a leaky bucket rate limiter to ensure that traces are sampled with a certain constant rate. For example, using sampling.param=2.0 samples requests with the rate of 2 traces per second.

Table 4.4. Jaeger sampling options
Parameter	Description	Values	Default value
spec: sampling: options: {} default_strategy: service_strategy:	Configuration options that define the sampling strategies for tracing.		If you do not provide configuration, the Collectors will return the default probabilistic sampling policy with 0.001 (0.1%) probability for all services.
default_strategy: type: service_strategy: type:	Sampling strategy to use. See descriptions above.	Valid values are `probabilistic`, and `ratelimiting`.	`probabilistic`
default_strategy: param: service_strategy: param:	Parameters for the selected sampling strategy.	Decimal and integer values (0, .1, 1, 10)	1

This example defines a default sampling strategy that is probabilistic, with a 50% chance of the trace instances being sampled.

Probabilistic sampling example

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: with-sampling
spec:
  sampling:
    options:
      default_strategy:
        type: probabilistic
        param: 0.5
      service_strategies:
        - service: alpha
          type: probabilistic
          param: 0.8
          operation_strategies:
            - operation: op1
              type: probabilistic
              param: 0.2
            - operation: op2
              type: probabilistic
              param: 0.4
        - service: beta
          type: ratelimiting
          param: 5

If there are no user-supplied configurations, the distributed tracing platform (Jaeger) uses the following settings:

Default sampling

spec:
  sampling:
    options:
      default_strategy:
        type: probabilistic
        param: 1

4.2.6.6. Distributed tracing storage configuration options

You configure storage for the Collector, Ingester, and Query services under spec.storage. Multiple instances of each of these components can be provisioned as required for performance and resilience purposes.

Table 4.5. General storage parameters used by the Red Hat OpenShift distributed tracing platform (Jaeger) Operator to define distributed tracing storage
Parameter	Description	Values	Default value
spec: storage: type:	Type of storage to use for the deployment.	`memory` or `elasticsearch`. Memory storage is only appropriate for development, testing, demonstrations, and proof of concept environments as the data does not persist if the pod is shut down. For production environments distributed tracing platform (Jaeger) supports Elasticsearch for persistent storage.	`memory`
storage: secretname:	Name of the secret, for example `tracing-secret`.		N/A
storage: options: {}	Configuration options that define the storage.

Table 4.6. Elasticsearch index cleaner parameters
Parameter	Description	Values	Default value
storage: esIndexCleaner: enabled:	When using Elasticsearch storage, by default a job is created to clean old traces from the index. This parameter enables or disables the index cleaner job.	`true`/ `false`	`true`
storage: esIndexCleaner: numberOfDays:	Number of days to wait before deleting an index.	Integer value	`7`
storage: esIndexCleaner: schedule:	Defines the schedule for how often to clean the Elasticsearch index.	Cron expression	"55 23 * * *"

4.2.6.6.1. Auto-provisioning an Elasticsearch instance

When you deploy a Jaeger custom resource, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator uses the OpenShift Elasticsearch Operator to create an Elasticsearch cluster based on the configuration provided in the storage section of the custom resource file. The Red Hat OpenShift distributed tracing platform (Jaeger) Operator will provision Elasticsearch if the following configurations are set:

spec.storage:type is set to elasticsearch
spec.storage.elasticsearch.doNotProvision set to false
spec.storage.options.es.server-urls is not defined, that is, there is no connection to an Elasticsearch instance that was not provisioned by the OpenShift Elasticsearch Operator.

When provisioning Elasticsearch, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator sets the Elasticsearch custom resource name to the value of spec.storage.elasticsearch.name from the Jaeger custom resource. If you do not specify a value for spec.storage.elasticsearch.name, the Operator uses elasticsearch.

Restrictions

You can have only one distributed tracing platform (Jaeger) with self-provisioned Elasticsearch instance per namespace. The Elasticsearch cluster is meant to be dedicated for a single distributed tracing platform (Jaeger) instance.
There can be only one Elasticsearch per namespace.

Note

If you already have installed Elasticsearch as part of OpenShift Logging, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator can use the installed OpenShift Elasticsearch Operator to provision storage.

The following configuration parameters are for a self-provisioned Elasticsearch instance, that is an instance created by the Red Hat OpenShift distributed tracing platform (Jaeger) Operator using the OpenShift Elasticsearch Operator. You specify configuration options for self-provisioned Elasticsearch under spec:storage:elasticsearch in your configuration file.

Table 4.7. Elasticsearch resource configuration parameters
Parameter	Description	Values	Default value
elasticsearch: properties: doNotProvision:	Use to specify whether or not an Elasticsearch instance should be provisioned by the Red Hat OpenShift distributed tracing platform (Jaeger) Operator.	`true`/`false`	`true`
elasticsearch: properties: name:	Name of the Elasticsearch instance. The Red Hat OpenShift distributed tracing platform (Jaeger) Operator uses the Elasticsearch instance specified in this parameter to connect to Elasticsearch.	string	`elasticsearch`
elasticsearch: nodeCount:	Number of Elasticsearch nodes. For high availability use at least 3 nodes. Do not use 2 nodes as “split brain” problem can happen.	Integer value. For example, Proof of concept = 1, Minimum deployment =3	3
elasticsearch: resources: requests: cpu:	Number of central processing units for requests, based on your environment’s configuration.	Specified in cores or millicores, for example, 200m, 0.5, 1. For example, Proof of concept = 500m, Minimum deployment =1	1
elasticsearch: resources: requests: memory:	Available memory for requests, based on your environment’s configuration.	Specified in bytes, for example, 200Ki, 50Mi, 5Gi. For example, Proof of concept = 1Gi, Minimum deployment = 16Gi*	16Gi
elasticsearch: resources: limits: cpu:	Limit on number of central processing units, based on your environment’s configuration.	Specified in cores or millicores, for example, 200m, 0.5, 1. For example, Proof of concept = 500m, Minimum deployment =1
elasticsearch: resources: limits: memory:	Available memory limit based on your environment’s configuration.	Specified in bytes, for example, 200Ki, 50Mi, 5Gi. For example, Proof of concept = 1Gi, Minimum deployment = 16Gi*
elasticsearch: redundancyPolicy:	Data replication policy defines how Elasticsearch shards are replicated across data nodes in the cluster. If not specified, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator automatically determines the most appropriate replication based on number of nodes.	`ZeroRedundancy`(no replica shards), `SingleRedundancy`(one replica shard), `MultipleRedundancy`(each index is spread over half of the Data nodes), `FullRedundancy` (each index is fully replicated on every Data node in the cluster).
elasticsearch: useCertManagement:	Use to specify whether or not distributed tracing platform (Jaeger) should use the certificate management feature of the OpenShift Elasticsearch Operator. This feature was added to {logging-title} 5.2 in OpenShift Container Platform 4.7 and is the preferred setting for new Jaeger deployments.	`true`/`false`	`true`

Each Elasticsearch node can operate with a lower memory setting though this is NOT recommended for production deployments. For production use, you must have no less than 16 Gi allocated to each pod by default, but preferably allocate as much as you can, up to 64 Gi per pod.

Production storage example

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: simple-prod
spec:
  strategy: production
  storage:
    type: elasticsearch
    elasticsearch:
      nodeCount: 3
      resources:
        requests:
          cpu: 1
          memory: 16Gi
        limits:
          memory: 16Gi

Storage example with persistent storage:

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: simple-prod
spec:
  strategy: production
  storage:
    type: elasticsearch
    elasticsearch:
      nodeCount: 1
      storage: 1
        storageClassName: gp2
        size: 5Gi
      resources:
        requests:
          cpu: 200m
          memory: 4Gi
        limits:
          memory: 4Gi
      redundancyPolicy: ZeroRedundancy

1: Persistent storage configuration. In this case AWS gp2 with 5Gi size. When no value is specified, distributed tracing platform (Jaeger) uses emptyDir. The OpenShift Elasticsearch Operator provisions PersistentVolumeClaim and PersistentVolume which are not removed with distributed tracing platform (Jaeger) instance. You can mount the same volumes if you create a distributed tracing platform (Jaeger) instance with the same name and namespace.

4.2.6.6.2. Connecting to an existing Elasticsearch instance

You can use an existing Elasticsearch cluster for storage with distributed tracing platform. An existing Elasticsearch cluster, also known as an external Elasticsearch instance, is an instance that was not installed by the Red Hat OpenShift distributed tracing platform (Jaeger) Operator or by the OpenShift Elasticsearch Operator.

When you deploy a Jaeger custom resource, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator will not provision Elasticsearch if the following configurations are set:

spec.storage.elasticsearch.doNotProvision set to true
spec.storage.options.es.server-urls has a value
spec.storage.elasticsearch.name has a value, or if the Elasticsearch instance name is elasticsearch.

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator uses the Elasticsearch instance specified in spec.storage.elasticsearch.name to connect to Elasticsearch.

Restrictions

You cannot share or reuse a OpenShift Container Platform logging Elasticsearch instance with distributed tracing platform (Jaeger). The Elasticsearch cluster is meant to be dedicated for a single distributed tracing platform (Jaeger) instance.

The following configuration parameters are for an already existing Elasticsearch instance, also known as an external Elasticsearch instance. In this case, you specify configuration options for Elasticsearch under spec:storage:options:es in your custom resource file.

Table 4.8. General ES configuration parameters
Parameter	Description	Values	Default value
es: server-urls:	URL of the Elasticsearch instance.	The fully-qualified domain name of the Elasticsearch server.	`http://elasticsearch.<namespace>.svc:9200`
es: max-doc-count:	The maximum document count to return from an Elasticsearch query. This will also apply to aggregations. If you set both `es.max-doc-count` and `es.max-num-spans`, Elasticsearch will use the smaller value of the two.		10000
es: max-num-spans:	[Deprecated - Will be removed in a future release, use `es.max-doc-count` instead.] The maximum number of spans to fetch at a time, per query, in Elasticsearch. If you set both `es.max-num-spans` and `es.max-doc-count`, Elasticsearch will use the smaller value of the two.		10000
es: max-span-age:	The maximum lookback for spans in Elasticsearch.		72h0m0s
es: sniffer:	The sniffer configuration for Elasticsearch. The client uses the sniffing process to find all nodes automatically. Disabled by default.	`true`/ `false`	`false`
es: sniffer-tls-enabled:	Option to enable TLS when sniffing an Elasticsearch Cluster. The client uses the sniffing process to find all nodes automatically. Disabled by default	`true`/ `false`	`false`
es: timeout:	Timeout used for queries. When set to zero there is no timeout.		0s
es: username:	The username required by Elasticsearch. The basic authentication also loads CA if it is specified. See also `es.password`.
es: password:	The password required by Elasticsearch. See also, `es.username`.
es: version:	The major Elasticsearch version. If not specified, the value will be auto-detected from Elasticsearch.		0

Table 4.9. ES data replication parameters
Parameter	Description	Values	Default value
es: num-replicas:	The number of replicas per index in Elasticsearch.		1
es: num-shards:	The number of shards per index in Elasticsearch.		5

Table 4.10. ES index configuration parameters
Parameter	Description	Values	Default value
es: create-index-templates:	Automatically create index templates at application startup when set to `true`. When templates are installed manually, set to `false`.	`true`/ `false`	`true`
es: index-prefix:	Optional prefix for distributed tracing platform (Jaeger) indices. For example, setting this to "production" creates indices named "production-tracing-*".

Table 4.11. ES bulk processor configuration parameters
Parameter	Description	Default value
es: bulk: actions:	The number of requests that can be added to the queue before the bulk processor decides to commit updates to disk.	1000
es: bulk: flush-interval:	A `time.Duration` after which bulk requests are committed, regardless of other thresholds. To disable the bulk processor flush interval, set this to zero.	200ms
es: bulk: size:	The number of bytes that the bulk requests can take up before the bulk processor decides to commit updates to disk.	5000000
es: bulk: workers:	The number of workers that are able to receive and commit bulk requests to Elasticsearch.	1

Table 4.12. ES TLS configuration parameters
Parameter	Description	Values	Default value
es: tls: ca:	Path to a TLS Certification Authority (CA) file used to verify the remote servers.		Will use the system truststore by default.
es: tls: cert:	Path to a TLS Certificate file, used to identify this process to the remote servers.
es: tls: enabled:	Enable transport layer security (TLS) when talking to the remote servers. Disabled by default.	`true`/ `false`	`false`
es: tls: key:	Path to a TLS Private Key file, used to identify this process to the remote servers.
es: tls: server-name:	Override the expected TLS server name in the certificate of the remote servers.
es: token-file:	Path to a file containing the bearer token. This flag also loads the Certification Authority (CA) file if it is specified.

Table 4.13. ES archive configuration parameters
Parameter	Description	Values	Default value
es-archive: bulk: actions:	The number of requests that can be added to the queue before the bulk processor decides to commit updates to disk.		0
es-archive: bulk: flush-interval:	A `time.Duration` after which bulk requests are committed, regardless of other thresholds. To disable the bulk processor flush interval, set this to zero.		0s
es-archive: bulk: size:	The number of bytes that the bulk requests can take up before the bulk processor decides to commit updates to disk.		0
es-archive: bulk: workers:	The number of workers that are able to receive and commit bulk requests to Elasticsearch.		0
es-archive: create-index-templates:	Automatically create index templates at application startup when set to `true`. When templates are installed manually, set to `false`.	`true`/ `false`	`false`
es-archive: enabled:	Enable extra storage.	`true`/ `false`	`false`
es-archive: index-prefix:	Optional prefix for distributed tracing platform (Jaeger) indices. For example, setting this to "production" creates indices named "production-tracing-*".
es-archive: max-doc-count:	The maximum document count to return from an Elasticsearch query. This will also apply to aggregations.		0
es-archive: max-num-spans:	[Deprecated - Will be removed in a future release, use `es-archive.max-doc-count` instead.] The maximum number of spans to fetch at a time, per query, in Elasticsearch.		0
es-archive: max-span-age:	The maximum lookback for spans in Elasticsearch.		0s
es-archive: num-replicas:	The number of replicas per index in Elasticsearch.		0
es-archive: num-shards:	The number of shards per index in Elasticsearch.		0
es-archive: password:	The password required by Elasticsearch. See also, `es.username`.
es-archive: server-urls:	The comma-separated list of Elasticsearch servers. Must be specified as fully qualified URLs, for example, `http://localhost:9200`.
es-archive: sniffer:	The sniffer configuration for Elasticsearch. The client uses the sniffing process to find all nodes automatically. Disabled by default.	`true`/ `false`	`false`
es-archive: sniffer-tls-enabled:	Option to enable TLS when sniffing an Elasticsearch Cluster. The client uses the sniffing process to find all nodes automatically. Disabled by default.	`true`/ `false`	`false`
es-archive: timeout:	Timeout used for queries. When set to zero there is no timeout.		0s
es-archive: tls: ca:	Path to a TLS Certification Authority (CA) file used to verify the remote servers.		Will use the system truststore by default.
es-archive: tls: cert:	Path to a TLS Certificate file, used to identify this process to the remote servers.
es-archive: tls: enabled:	Enable transport layer security (TLS) when talking to the remote servers. Disabled by default.	`true`/ `false`	`false`
es-archive: tls: key:	Path to a TLS Private Key file, used to identify this process to the remote servers.
es-archive: tls: server-name:	Override the expected TLS server name in the certificate of the remote servers.
es-archive: token-file:	Path to a file containing the bearer token. This flag also loads the Certification Authority (CA) file if it is specified.
es-archive: username:	The username required by Elasticsearch. The basic authentication also loads CA if it is specified. See also `es-archive.password`.
es-archive: version:	The major Elasticsearch version. If not specified, the value will be auto-detected from Elasticsearch.		0

Storage example with volume mounts

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: simple-prod
spec:
  strategy: production
  storage:
    type: elasticsearch
    options:
      es:
        server-urls: https://quickstart-es-http.default.svc:9200
        index-prefix: my-prefix
        tls:
          ca: /es/certificates/ca.crt
    secretName: tracing-secret
  volumeMounts:
    - name: certificates
      mountPath: /es/certificates/
      readOnly: true
  volumes:
    - name: certificates
      secret:
        secretName: quickstart-es-http-certs-public

The following example shows a Jaeger CR using an external Elasticsearch cluster with TLS CA certificate mounted from a volume and user/password stored in a secret.

External Elasticsearch example

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: simple-prod
spec:
  strategy: production
  storage:
    type: elasticsearch
    options:
      es:
        server-urls: https://quickstart-es-http.default.svc:9200 1
        index-prefix: my-prefix
        tls: 2
          ca: /es/certificates/ca.crt
    secretName: tracing-secret 3
  volumeMounts: 4
    - name: certificates
      mountPath: /es/certificates/
      readOnly: true
  volumes:
    - name: certificates
      secret:
        secretName: quickstart-es-http-certs-public

1: URL to Elasticsearch service running in default namespace.
2: TLS configuration. In this case only CA certificate, but it can also contain es.tls.key and es.tls.cert when using mutual TLS.
3: Secret which defines environment variables ES_PASSWORD and ES_USERNAME. Created by kubectl create secret generic tracing-secret --from-literal=ES_PASSWORD=changeme --from-literal=ES_USERNAME=elastic
4: Volume mounts and volumes which are mounted into all storage components.

4.2.6.7. Managing certificates with Elasticsearch

You can create and manage certificates using the OpenShift Elasticsearch Operator. Managing certificates using the OpenShift Elasticsearch Operator also lets you use a single Elasticsearch cluster with multiple Jaeger Collectors.

Important

Managing certificates with Elasticsearch is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

Starting with version 2.4, the Red Hat OpenShift distributed tracing platform (Jaeger) Operator delegates certificate creation to the OpenShift Elasticsearch Operator by using the following annotations in the Elasticsearch custom resource:

logging.openshift.io/elasticsearch-cert-management: "true"
logging.openshift.io/elasticsearch-cert.jaeger-<shared-es-node-name>: "user.jaeger"
logging.openshift.io/elasticsearch-cert.curator-<shared-es-node-name>: "system.logging.curator"

Where the <shared-es-node-name> is the name of the Elasticsearch node. For example, if you create an Elasticsearch node named custom-es, your custom resource might look like the following example.

Example Elasticsearch CR showing annotations

apiVersion: logging.openshift.io/v1
kind: Elasticsearch
metadata:
  annotations:
    logging.openshift.io/elasticsearch-cert-management: "true"
    logging.openshift.io/elasticsearch-cert.jaeger-custom-es: "user.jaeger"
    logging.openshift.io/elasticsearch-cert.curator-custom-es: "system.logging.curator"
  name: custom-es
spec:
  managementState: Managed
  nodeSpec:
    resources:
      limits:
        memory: 16Gi
      requests:
        cpu: 1
        memory: 16Gi
  nodes:
    - nodeCount: 3
      proxyResources: {}
      resources: {}
      roles:
        - master
        - client
        - data
      storage: {}
  redundancyPolicy: ZeroRedundancy

Prerequisites

The Red Hat OpenShift Service Mesh Operator is installed.
The {logging-title} is installed with default configuration in your cluster.
The Elasticsearch node and the Jaeger instances must be deployed in the same namespace. For example, tracing-system.

You enable certificate management by setting spec.storage.elasticsearch.useCertManagement to true in the Jaeger custom resource.

Example showing useCertManagement

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: jaeger-prod
spec:
  strategy: production
  storage:
    type: elasticsearch
    elasticsearch:
      name: custom-es
      doNotProvision: true
      useCertManagement: true

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator sets the Elasticsearch custom resource name to the value of spec.storage.elasticsearch.name from the Jaeger custom resource when provisioning Elasticsearch.

The certificates are provisioned by the OpenShift Elasticsearch Operator and the Red Hat OpenShift distributed tracing platform (Jaeger) Operator injects the certificates.

4.2.6.8. Query configuration options

Query is a service that retrieves traces from storage and hosts the user interface to display them.

Table 4.14. Parameters used by the Red Hat OpenShift distributed tracing platform (Jaeger) Operator to define Query
Parameter	Description	Values	Default value
spec: query: replicas:	Specifies the number of Query replicas to create.	Integer, for example, `2`

Table 4.15. Configuration parameters passed to Query
Parameter	Description	Values
spec: query: options: {}	Configuration options that define the Query service.
options: log-level:	Logging level for Query.	Possible values: `debug`, `info`, `warn`, `error`, `fatal`, `panic`.
options: query: base-path:	The base path for all jaeger-query HTTP routes can be set to a non-root value, for example, `/jaeger` would cause all UI URLs to start with `/jaeger`. This can be useful when running jaeger-query behind a reverse proxy.	/<path>

Sample Query configuration

apiVersion: jaegertracing.io/v1
kind: "Jaeger"
metadata:
  name: "my-jaeger"
spec:
  strategy: allInOne
  allInOne:
    options:
      log-level: debug
      query:
        base-path: /jaeger

4.2.6.9. Ingester configuration options

Ingester is a service that reads from a Kafka topic and writes to the Elasticsearch storage backend. If you are using the allInOne or production deployment strategies, you do not need to configure the Ingester service.

Table 4.16. Jaeger parameters passed to the Ingester
Parameter	Description	Values
spec: ingester: options: {}	Configuration options that define the Ingester service.
options: deadlockInterval:	Specifies the interval, in seconds or minutes, that the Ingester must wait for a message before terminating. The deadlock interval is disabled by default (set to `0`), to avoid terminating the Ingester when no messages arrive during system initialization.	Minutes and seconds, for example, `1m0s`. Default value is `0`.
options: kafka: consumer: topic:	The `topic` parameter identifies the Kafka configuration used by the collector to produce the messages, and the Ingester to consume the messages.	Label for the consumer. For example, `jaeger-spans`.
options: kafka: consumer: brokers:	Identifies the Kafka configuration used by the Ingester to consume the messages.	Label for the broker, for example, `my-cluster-kafka-brokers.kafka:9092`.
options: log-level:	Logging level for the Ingester.	Possible values: `debug`, `info`, `warn`, `error`, `fatal`, `dpanic`, `panic`.

Streaming Collector and Ingester example

apiVersion: jaegertracing.io/v1
kind: Jaeger
metadata:
  name: simple-streaming
spec:
  strategy: streaming
  collector:
    options:
      kafka:
        producer:
          topic: jaeger-spans
          brokers: my-cluster-kafka-brokers.kafka:9092
  ingester:
    options:
      kafka:
        consumer:
          topic: jaeger-spans
          brokers: my-cluster-kafka-brokers.kafka:9092
      ingester:
        deadlockInterval: 5
  storage:
    type: elasticsearch
    options:
      es:
        server-urls: http://elasticsearch:9200

4.2.7. Injecting sidecars

The Red Hat OpenShift distributed tracing platform (Jaeger) relies on a proxy sidecar within the application’s pod to provide the Agent. The Red Hat OpenShift distributed tracing platform (Jaeger) Operator can inject Agent sidecars into deployment workloads. You can enable automatic sidecar injection or manage it manually.

4.2.7.1. Automatically injecting sidecars

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator can inject Jaeger Agent sidecars into deployment workloads. To enable automatic injection of sidecars, add the sidecar.jaegertracing.io/inject annotation set to either the string true or to the distributed tracing platform (Jaeger) instance name that is returned by running $ oc get jaegers. When you specify true, there must be only a single distributed tracing platform (Jaeger) instance for the same namespace as the deployment. Otherwise, the Operator is unable to determine which distributed tracing platform (Jaeger) instance to use. A specific distributed tracing platform (Jaeger) instance name on a deployment has a higher precedence than true applied on its namespace.

The following snippet shows a simple application that will inject a sidecar, with the agent pointing to the single distributed tracing platform (Jaeger) instance available in the same namespace:

Automatic sidecar injection example

apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp
  annotations:
    "sidecar.jaegertracing.io/inject": "true" 1
spec:
  selector:
    matchLabels:
      app: myapp
  template:
    metadata:
      labels:
        app: myapp
    spec:
      containers:
      - name: myapp
        image: acme/myapp:myversion

1: Set to either the string true or to the Jaeger instance name.

When the sidecar is injected, the agent can then be accessed at its default location on localhost.

4.2.7.2. Manually injecting sidecars

The Red Hat OpenShift distributed tracing platform (Jaeger) Operator can only automatically inject Jaeger Agent sidecars into Deployment workloads. For controller types other than Deployments, such as StatefulSets`and `DaemonSets, you can manually define the Jaeger agent sidecar in your specification.

The following snippet shows the manual definition you can include in your containers section for a Jaeger agent sidecar:

Sidecar definition example for a StatefulSet

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: example-statefulset
  namespace: example-ns
  labels:
    app: example-app
spec:

    spec:
      containers:
        - name: example-app
          image: acme/myapp:myversion
          ports:
            - containerPort: 8080
              protocol: TCP
        - name: jaeger-agent
          image: registry.redhat.io/distributed-tracing/jaeger-agent-rhel7:<version>
           # The agent version must match the Operator version
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 5775
              name: zk-compact-trft
              protocol: UDP
            - containerPort: 5778
              name: config-rest
              protocol: TCP
            - containerPort: 6831
              name: jg-compact-trft
              protocol: UDP
            - containerPort: 6832
              name: jg-binary-trft
              protocol: UDP
            - containerPort: 14271
              name: admin-http
              protocol: TCP
          args:
            - --reporter.grpc.host-port=dns:///jaeger-collector-headless.example-ns:14250
            - --reporter.type=grpc

The agent can then be accessed at its default location on localhost.

4.3. Upgrading

Important

Operator Lifecycle Manager (OLM) controls the installation, upgrade, and role-based access control (RBAC) of Operators in a cluster. The OLM runs by default in OpenShift Container Platform. OLM queries for available Operators as well as upgrades for installed Operators.

During an update, the Red Hat OpenShift distributed tracing platform Operators upgrade the managed distributed tracing platform instances to the version associated with the Operator. Whenever a new version of the Red Hat OpenShift distributed tracing platform (Jaeger) Operator is installed, all the distributed tracing platform (Jaeger) application instances managed by the Operator are upgraded to the Operator’s version. For example, after upgrading the Operator from 1.10 installed to 1.11, the Operator scans for running distributed tracing platform (Jaeger) instances and upgrades them to 1.11 as well.

Important

If you have not already updated your OpenShift Elasticsearch Operator as described in Updating OpenShift Logging, complete that update before updating your Red Hat OpenShift distributed tracing platform (Jaeger) Operator.

4.3.1. Additional resources

4.4. Removing

Important

The steps for removing Red Hat OpenShift distributed tracing platform from an OpenShift Container Platform cluster are as follows:

Shut down any Red Hat OpenShift distributed tracing platform pods.
Remove any Red Hat OpenShift distributed tracing platform instances.
Remove the Red Hat OpenShift distributed tracing platform (Jaeger) Operator.
Remove the Red Hat build of OpenTelemetry Operator.

4.4.1. Removing a distributed tracing platform (Jaeger) instance by using the web console

You can remove a distributed tracing platform (Jaeger) instance in the Administrator view of the web console.

Warning

When deleting an instance that uses in-memory storage, all data is irretrievably lost. Data stored in persistent storage such as Elasticsearch is not deleted when a Red Hat OpenShift distributed tracing platform (Jaeger) instance is removed.

Prerequisites

You are logged in to the web console as a cluster administrator with the cluster-admin role.

Procedure

Log in to the OpenShift Container Platform web console.
Navigate to Operators → Installed Operators.
Select the name of the project where the Operators are installed from the Project menu, for example, openshift-operators.
Click the Red Hat OpenShift distributed tracing platform (Jaeger) Operator.
Click the Jaeger tab.
Click the Options menu next to the instance you want to delete and select Delete Jaeger.
In the confirmation message, click Delete.

4.4.2. Removing a distributed tracing platform (Jaeger) instance by using the CLI

You can remove a distributed tracing platform (Jaeger) instance on the command line.

Prerequisites

An active OpenShift CLI (oc) session by a cluster administrator with the cluster-admin role.
Tip
- Ensure that your OpenShift CLI (oc) version is up to date and matches your OpenShift Container Platform version.
- Run oc login:
  $ oc login --username=<your_username>

Procedure

To display the distributed tracing platform (Jaeger) instances, run the following command:

$ oc get deployments -n <jaeger-project>

For example,

$ oc get deployments -n openshift-operators

The names of Operators have the suffix -operator. The following example shows two Red Hat OpenShift distributed tracing platform (Jaeger) Operators and four distributed tracing platform (Jaeger) instances:

$ oc get deployments -n openshift-operators

You will see output similar to the following:

NAME                     READY   UP-TO-DATE   AVAILABLE   AGE
elasticsearch-operator   1/1     1            1           93m
jaeger-operator          1/1     1            1           49m
jaeger-test              1/1     1            1           7m23s
jaeger-test2             1/1     1            1           6m48s
tracing1                 1/1     1            1           7m8s
tracing2                 1/1     1            1           35m

To remove an instance of distributed tracing platform (Jaeger), run the following command:

$ oc delete jaeger <deployment-name> -n <jaeger-project>

For example:

$ oc delete jaeger tracing2 -n openshift-operators

To verify the deletion, run the oc get deployments command again:

$ oc get deployments -n <jaeger-project>

For example:

$ oc get deployments -n openshift-operators

You will see generated output that is similar to the following example:

NAME                     READY   UP-TO-DATE   AVAILABLE   AGE
elasticsearch-operator   1/1     1            1           94m
jaeger-operator          1/1     1            1           50m
jaeger-test              1/1     1            1           8m14s
jaeger-test2             1/1     1            1           7m39s
tracing1                 1/1     1            1           7m59s

4.4.3. Removing the Red Hat OpenShift distributed tracing platform Operators

Procedure

Follow the instructions in Deleting Operators from a cluster to remove the Red Hat OpenShift distributed tracing platform (Jaeger) Operator.
Optional: After the Red Hat OpenShift distributed tracing platform (Jaeger) Operator has been removed, remove the OpenShift Elasticsearch Operator.

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