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Chapter 3. Camel K release notes

Camel K is a lightweight integration framework built from Apache Camel K that runs natively in the cloud on OpenShift. Camel K is specifically designed for serverless and microservice architectures. You can use Camel K to instantly run integration code written in Camel Domain Specific Language (DSL) directly on OpenShift.

Using Camel K with OpenShift Serverless and Knative, containers are automatically created only as needed and are autoscaled under load up and down to zero. This removes the overhead of server provisioning and maintenance and enables you to focus instead on application development.

Using Camel K with OpenShift Serverless and Knative Eventing, you can manage how components in your system communicate in an event-driven architecture for serverless applications. This provides flexibility and creates efficiencies using a publish/subscribe or event-streaming model with decoupled relationships between event producers and consumers.

3.1. New Camel K features
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The Camel K provides cloud-native integration with the following main features:

  • Knative Serving for autoscaling and scale-to-zero
  • Knative Eventing for event-driven architectures
  • Performance optimizations using Quarkus runtime by default
  • Camel integrations written in Java or YAML DSL
  • Monitoring of integrations using Prometheus in OpenShift
  • Quickstart tutorials
  • Kamelet Catalog for connectors to external systems such as AWS, Jira, and Salesforce
  • Support for Timer and Log Kamelets

3.2. Supported Configurations
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For information about Camel K supported configurations, standards, and components, see the following Customer Portal articles:

3.2.1. Camel K Operator metadata
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The Camel K includes updated Operator metadata used to install Camel K from the OpenShift OperatorHub. This Operator metadata includes the Operator bundle format for release packaging, which is designed for use with OpenShift Container Platform 4.6 or later.

3.3. Important notes
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Important notes for the Red Hat Integration - Camel K release:

CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x
A patched version of Camel K (version 1.6.0-1) has been released to address the Log4j 2.x security issue, CVE-2021-44228 (popularly known as Log4Shell). To update your Camel K deployments and application projects to pick up this patched version, follow the upgrade instructions in Chapter 4. Upgrading Camel K from the Getting Started with Camel K guide. The patched version of Camel K is delivered through the 1.6.x Operator channel.
Supported Enterprise Integration Patterns (EIP) in Camel K

All Camel 3 EIP patterns, except the following, are fully supported for Camel K:

  • Circuit Breaker
  • Saga
  • Change Data Capture
YAML DSL Limitations
YAML DSL integrations are supported in Camel K 1.6, but the error messaging for incorrect YAML DSL code is still in development.
JAVA DSL Limitations
Java DSL in Camel K 1.6 is limited to a single class/configure method and any utility must be provided in third party JARS. The endpoint URIs must be defined directly in the endpoint strings for the Camel K automatic dependency support, otherwise you must specify the dependencies in modeline.
XML DSL is not supported
XML DSL is not supported in Camel K 1.6.
Camel K 1.6 runtime can only access Maven repos that support HTTPS
You can only use the Maven repositories that are secured by HTTPS. The insecure HTTP protocol is no longer be supported.

3.4. Supported Camel Quarkus extensions
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This section lists the Camel Quarkus extensions that are supported for this release of Camel K (only when used inside a Camel K application).

Note

These Camel Quarkus extensions are supported only when used inside a Camel K application. These Camel Quarkus extensions are not supported for use in standalone mode (without Camel K).

The following table shows the Camel Quarkus connector extensions that are supported for this release of Camel K (only when used inside a Camel K application).

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NamePackage

AWS 2 Kinesis

camel-quarkus-aws2-kinesis

AWS 2 Lambda

camel-quarkus-aws2-lambda

AWS 2 S3 Storage Service

camel-quarkus-aws2-s3

AWS 2 Simple Notification System (SNS)

camel-quarkus-aws2-sns

AWS 2 Simple Queue Service (SQS)

camel-quarkus-aws2-sqs

File

camel-quarkus-file

FTP

camel-quarkus-ftp

FTPS

camel-quarkus-ftp

SFTP

camel-quarkus-ftp

HTTP

camel-quarkus-http

JMS

camel-quarkus-jms

Kafka

camel-quarkus-kafka

Kamelets

camel-quarkus-kamelet

Metrics

camel-quarkus-microprofile-metrics

MongoDB

camel-quarkus-mongodb

Salesforce

camel-quarkus-salesforce

SQL

camel-quarkus-sql

Timer

camel-quarkus-timer

The following table shows the Camel Quarkus dataformat extensions that are supported for this release of Camel K (only when used inside a Camel K application).

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NamePackage

Avro

camel-quarkus-avro

Bindy (for CSV)

camel-qaurkus-bindy

JSON Jackson

camel-quarkus-jackson

Jackson Avro

camel-quarkus-jackson-avro

3.4.3. Supported Camel Quarkus language extensions
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In this release, Camel K supports the following Camel Quarkus language extensions (for use in Camel expressions and predicates):

  • Constant
  • ExchangeProperty
  • File
  • Header
  • Ref
  • Simple
  • Tokenize
  • JsonPath

3.4.4. Supported Camel K traits
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In this release, Camel K supports the following Camel K traits:

  • Builder trait
  • Camel trait
  • Container trait
  • Dependencies trait
  • Deployer trait
  • Deployment trait
  • Environment trait
  • Jvm trait
  • Kamelets trait
  • Owner trait
  • Platform trait
  • Pull Secret trait
  • Prometheus trait
  • Quarkus trait
  • Route trait
  • Service trait
  • Error Handler trait

3.5. Supported Kamelets
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The following table lists the kamelets that are provided as OpenShift resources when you install the Camel K operator.

For details about these kamelets, go to: https://github.com/openshift-integration/kamelet-catalog/tree/kamelet-catalog-1.6

For information about how to use kamelets to connect applications and services, see https://access.redhat.com/documentation/en-us/red_hat_integration/2021.q4/html-single/integrating_applications_with_kamelets.

Important

Kamelets marked with an asterisk (*) are Technology Preview features 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 https://access.redhat.com/support/offerings/techpreview.

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Table 3.1. Kamelets provided with the Camel K operator
KameletFile nameType (Sink, Source, Action)

Avro Deserialize action

avro-deserialize-action.kamelet.yaml

Action (data conversion)

Avro Serialize action

avro-serialize-action.kamelet.yaml

Action (data conversion)

AWS 2 S3 sink

aws-s3-sink.kamelet.yaml

Sink

AWS 2 S3 source

aws-s3-source.kamelet.yaml

Source

AWS 2 S3 Streaming Upload sink

aws-s3-streaming-upload-sink.kamelet.yaml

Sink

AWS 2 Kinesis sink

aws-kinesis-sink.kamelet.yaml

Sink

AWS 2 Kinesis source

aws-kinesis-source.kamelet.yaml

Source

AWS 2 Lambda sink

aws-lambda-sink.kamelet.yaml

Sink

AWS 2 Simple Notification System sink

aws-sns-sink.kamelet.yaml

Sink

AWS 2 Simple Queue Service sink

aws-sqs-sink.kamelet.yaml

Sink

AWS 2 Simple Queue Service source

aws-sqs-source.kamelet.yaml

Source

AWS SQS FIFO sink

aws-sqs-fifo-sink.kamelet.yaml

Sink

Cassandra sink*

cassandra-sink.kamelet.yaml

Sink

Cassandra source*

cassandra-source.kamelet.yaml

Source

Elasticsearch Index sink*

elasticsearch-index-sink.kamelet.yaml

Sink

Extract Field action

extract-field-action.kamelet.yaml

Action

FTP sink

ftp-sink.kamelet.yaml

Sink

FTP source

ftp-source.kamelet.yaml

Source

Has Header Key Filter action

has-header-filter-action.kamelet.yaml

Action (data transformation)

Hoist Field action

hoist-field-action.kamelet.yaml

Action

HTTP sink

http-sink.kamelet.yaml

Sink

Insert Field action

insert-field-action.kamelet.yaml

Action (data transformation)

Insert Header action

insert-header-action.kamelet.yaml

Action (data transformation)

Is Tombstone Filter action

is-tombstone-filter-action.kamelet.yaml

Action (data transformation)

Jira source*

jira-source.kamelet.yaml

Source

JMS sink

jms-amqp-10-sink.kamelet.yaml

Sink

JMS source

jms-amqp-10-source.kamelet.yaml

Source

JSON Deserialize action

json-deserialize-action.kamelet.yaml

Action (data conversion)

JSON Serialize action

json-serialize-action.kamelet.yaml

Action (data conversion)

Kafka sink

kafka-sink.kamelet.yaml

Sink

Kafka source

kafka-source.kamelet.yaml

Source

Kafka Topic Name Filter action

topic-name-matches-filter-action.kamelet.yaml

Action (data transformation)

Log sink

log-sink.kamelet.yaml

Sink (for development and testing purposes)

Mask Fields action

mask-field-action.kamelet.yaml

Action (data transformation)

Message TimeStamp Router action

message-timestamp-router-action.kamelet.yaml

Action (router)

MongoDB sink

mongodb-sink.kamelet.yaml

Sink

MongoDB source

mongodb-source.kamelet.yaml

Source

MySQL sink

mysql-sink.kamelet.yaml

Sink

PostgreSQL sink

postgresql-sink.kamelet.yaml

Sink

Predicate filter action

predicate-filter-action.kamelet.yaml

Action (router/filter)

Protobuf Deserialize action

protobuf-deserialize-action.kamelet.yaml

Action (data conversion)

Protobuf Serialize action

protobuf-serialize-action.kamelet.yaml

Action (data conversion)

Regex Router action

regex-router-action.kamelet.yaml

Action (router)

Replace Field action

replace-field-action.kamelet.yaml

Action

Salesforce source

salesforce-source.kamelet.yaml

Source

SFTP sink

sftp-sink.kamelet.yaml

Sink

SFTP source

sftp-source.kamelet.yaml

Source

Slack source

slack-source.kamelet.yaml

Source

SQL Server Database sink

sqlserver-sink.kamelet.yaml

Sink

Telegram source*

telegram-source.kamelet.yaml

Source

Timer source

timer-source.kamelet.yaml

Source (for development and testing purposes)

TimeStamp Router action

timestamp-router-action.kamelet.yaml

Action (router)

Value to Key action

value-to-key-action.kamelet.yaml

Action (data transformation)

3.6. Camel K known issues
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The following known issues apply to the Camel K 1.6:

ENTESB-15306 - CRD conflicts between Camel K and Fuse Online

If an older version of Camel K has ever been installed in the same OpenShift cluster, installing Camel K from the OperatorHub fails due to conflicts with custom resource definitions. For example, this includes older versions of Camel K previously available in Fuse Online.

For a workaround, you can install Camel K in a different OpenShift cluster, or enter the following command before installing Camel K: 

$ oc get crds -l app=camel-k -o json | oc delete -f -

ENTESB-15858 - Added ability to package and run Camel integrations locally or as container images

Packaging and running Camel integrations locally or as container images is not currently included in the Camel K and has community-only support.

For more details, see the Apache Camel K community.

ENTESB-16477 - Unable to download jira client dependency with productized build

When using Camel K operator, the integration is unable to find dependencies for jira client. The work around is to add the atlassian repo manually. 

apiVersion: camel.apache.org/v1
kind: IntegrationPlatform
metadata:
  labels:
    app: camel-k
  name: camel-k
spec:
  configuration:
  - type: repository
    value: <atlassian repo here>

ENTESB-17033 - Camel-K ElasticsearchComponent options ignored

When configuring the Elasticsearch component, the Camel K ElasticsearchComponent options are ignored. The work around is to add getContext().setAutowiredEnabled(false) when using the Elasticsearch component.

ENTESB-17061 - Can’t run mongo-db-source kamelet route with non-admin user - Failed to start route mongodb-source-1 because of null

It is not possible to run mongo-db-source kamelet route with non-admin user credentials. Some part of the component require admin credentials hence it is not possible run the route as a non-admin user.

3.7. Camel K Fixed Issues
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The following sections list the issues that have been fixed in Camel K 1.6.0.

3.7.1. Enhancements in Camel K 1.6.0
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The following table lists the enhancements in Camel K 1.6.0.

Expand
Table 3.2. Camel K 1.6.0 Enhancements
IssueDescription

ENTESB-17174

Support Timer and Log Kamelets (for development purposes)

ENTESB-17243

Remove usage of deprecated extensions/v1beta1 Ingress in Camel K

3.7.2. Bugs resolved in Camel K 1.6.0
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The following table lists the resolved bugs in Camel K 1.6.0.

Expand
Table 3.3. Camel K 1.6.0 Resolved Bugs
IssueDescription

ENTESB-17974

CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value [ rhint-camel-k-1 ]

ENTESB-17626

Unrecognized field "firstTruthyTime" in Event Streaming Example

ENTESB-17412

Backport CAMEL-17039 - Camel-AWS2-S3: When includeBody is false, the message Body should not be set

ENTESB-17177

Operator 1.4 not working well with AMQ-Streams Operator 1.8

ENTESB-16733

OCP Developer console EventSource catalog contains Sink Kamelets

ENTESB-17123

Quickstart Camel K: Event Streaming Example warns about Secret in UserReportSystem integration

ENTESB-17129

bad kamelet resolution using global flag

ENTESB-17334

AWS Cloud Watch Kamelet: Header mapping is wrong

ENTESB-17174

Camel K APIs are marked as TechPreview

ENTESB-17260

Kbind resolves "channel/messages" as Kamelet "messages" in namespace "channel"

ENTESB-17254

camel-k-example-knative - endpoint has been deprecated

ENTESB-17314

Telegram-source seems to not emit proper cloud-events

ENTESB-17257

Kbind requires property "apiVersion" to create KameletBinding with InMemoryChannel

ENTESB-17004

Kamelets in namespace are not updated with the changes from operator

ENTESB-17835

Operator installed through OLM doesn’t build integrations

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