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Chapter 4. Retrieving CodeReady Workspaces logs

For information about obtaining various types of logs in CodeReady Workspaces, see the following sections:

4.1. Configuring server logging

It is possible to fine-tune the log levels of individual loggers available in the CodeReady Workspaces server.

The log level of the whole CodeReady Workspaces server is configured globally using the cheLogLevel configuration property of the Operator. See https://access.redhat.com/documentation/en-us/red_hat_codeready_workspaces/2.15/html-single/installation_guide/index#checluster-custom-resource-fields-reference.adoc. To set the global log level in installations not managed by the Operator, specify the CHE_LOG_LEVEL environment variable in the che ConfigMap.

It is possible to configure the log levels of the individual loggers in the CodeReady Workspaces server using the CHE_LOGGER_CONFIG environment variable.

4.1.1. Configuring log levels

The format of the value of the CHE_LOGGER_CONFIG property is a list of comma-separated key-value pairs, where keys are the names of the loggers as seen in the CodeReady Workspaces server log output and values are the required log levels.

In Operator-based deployments, the CHE_LOGGER_CONFIG variable is specified under the customCheProperties of the custom resource.

For example, the following snippet would make the WorkspaceManager produce the DEBUG log messages. 

...
server:
  customCheProperties:
    CHE_LOGGER_CONFIG: "org.eclipse.che.api.workspace.server.WorkspaceManager=DEBUG"

4.1.2. Logger naming

The names of the loggers follow the class names of the internal server classes that use those loggers.

4.1.3. Logging HTTP traffic

It is possible to log the HTTP traffic between the CodeReady Workspaces server and the API server of the Kubernetes or OpenShift cluster. To do that, one has to set the che.infra.request-logging logger to the TRACE level. 

...
server:
  customCheProperties:
    CHE_LOGGER_CONFIG: "che.infra.request-logging=TRACE"

4.2. Accessing OpenShift events on OpenShift

For high-level monitoring of OpenShift projects, view the OpenShift events that the project performs.

This section describes how to access these events in the OpenShift web console.

Prerequisites

  • A running OpenShift web console.

Procedure

  1. In the left panel of the OpenShift web console, click the Home Events.
  2. To view the list of all events for a particular project, select the project from the list.
  3. The details of the events for the current project are displayed.

Additional resources

4.3. Viewing the state of the CodeReady Workspaces cluster deployment using OpenShift 4 CLI tools

This section describes how to view the state of the CodeReady Workspaces cluster deployment using OpenShift 4 CLI tools.

Prerequisites

  • An instance of Red Hat CodeReady Workspaces running on OpenShift.
  • An installation of the OpenShift command-line tool, oc.

Procedure

  1. Run the following commands to select the crw project: 

    $ oc project <project_name>

  2. Run the following commands to get the name and status of the Pods running in the selected project: 

    $ oc get pods

  3. Check that the status of all the Pods is Running.

    Example 4.1. Pods with status Running

    NAME                            READY     STATUS    RESTARTS   AGE
codeready-8495f4946b-jrzdc            0/1       Running   0          86s
codeready-operator-578765d954-99szc   1/1       Running   0          42m
keycloak-74fbfb9654-g9vp5       1/1       Running   0          4m32s
postgres-5d579c6847-w6wx5       1/1       Running   0          5m14s

  4. To see the state of the CodeReady Workspaces cluster deployment, run: 

    $ oc logs --tail=10 -f `(oc get pods -o name | grep operator)`

    Example 4.2. Logs of the Operator:

    time="2019-07-12T09:48:29Z" level=info msg="Exec successfully completed"
time="2019-07-12T09:48:29Z" level=info msg="Updating eclipse-che CR with status: provisioned with OpenShift identity provider: true"
time="2019-07-12T09:48:29Z" level=info msg="Custom resource eclipse-che updated"
time="2019-07-12T09:48:29Z" level=info msg="Creating a new object: ConfigMap, name: che"
time="2019-07-12T09:48:29Z" level=info msg="Creating a new object: ConfigMap, name: custom"
time="2019-07-12T09:48:29Z" level=info msg="Creating a new object: Deployment, name: che"
time="2019-07-12T09:48:30Z" level=info msg="Updating eclipse-che CR with status: CodeReady Workspaces API: Unavailable"
time="2019-07-12T09:48:30Z" level=info msg="Custom resource eclipse-che updated"
time="2019-07-12T09:48:30Z" level=info msg="Waiting for deployment che. Default timeout: 420 seconds"

4.4. Viewing CodeReady Workspaces server logs

This section describes how to view the CodeReady Workspaces server logs using the command line.

4.4.1. Viewing the CodeReady Workspaces server logs using the OpenShift CLI

This section describes how to view the CodeReady Workspaces server logs using the OpenShift CLI (command line interface).

Procedure

  1. In the terminal, run the following command to get the Pods: 

    $ oc get pods

    Example

    $ oc get pods
NAME            READY  STATUS   RESTARTS  AGE
codeready-11-j4w2b    1/1    Running  0         3m

  2. To get the logs for a deployment, run the following command: 

    $ oc logs <name-of-pod>

    Example

    $ oc logs codeready-11-j4w2b

4.5. Viewing external service logs

This section describes how the view the logs from external services related to CodeReady Workspaces server.

4.5.1. Viewing RH-SSO logs

The RH-SSO OpenID provider consists of two parts: Server and IDE. It writes its diagnostics or error information to several logs.

4.5.1.1. Viewing the RH-SSO server logs

This section describes how to view the RH-SSO OpenID provider server logs.

Procedure

  1. In the OpenShift Web Console, click Deployments.
  2. In the Filter by label search field, type keycloak to see the RH-SSO logs.

. In the Deployment Configs section, click the keycloak link to open it.

  1. In the History tab, click the View log link for the active RH-SSO deployment.
  2. The RH-SSO logs are displayed.

Additional resources

4.5.1.2. Viewing the RH-SSO client logs on Mozilla Firefox

This section describes how to view the RH-SSO IDE client diagnostics or error information in the Mozilla Firefox WebConsole.

Procedure

  • Click Menu > WebDeveloper > WebConsole.

4.5.1.3. Viewing the RH-SSO client logs on Google Chrome

This section describes how to view the RH-SSO IDE client diagnostics or error information in the Google Chrome Console tab.

Procedure

  1. Click Menu > More Tools > Developer Tools.
  2. Click the Console tab.

4.5.2. Viewing the CodeReady Workspaces database logs

This section describes how to view the database logs in CodeReady Workspaces, such as PostgreSQL server logs.

Procedure

  1. In the OpenShift Web Console, click Deployments.

  2. In the Find by label search field, type:

    • app=che and press Enter

    • component=postgres and press Enter

      The OpenShift Web Console is searching base on those two keys and displays PostgreSQL logs.

  3. Click postgres deployment to open it.

  4. Click the View log link for the active PostgreSQL deployment.

    The OpenShift Web Console displays the database logs.

Additional resources

4.6. Viewing the plug-in broker logs

This section describes how to view the plug-in broker logs.

The che-plugin-broker Pod itself is deleted when its work is complete. Therefore, its event logs are only available while the workspace is starting.

Procedure

To see logged events from temporary Pods:

  1. Start a CodeReady Workspaces workspace.
  2. From the main OpenShift Container Platform screen, go to Workload Pods.
  3. Use the OpenShift terminal console located in the Pod’s Terminal tab

Verification step

  • OpenShift terminal console displays the plug-in broker logs while the workspace is starting

4.7. Collecting logs using crwctl

It is possible to get all Red Hat CodeReady Workspaces logs from a OpenShift cluster using the crwctl tool.

  • crwctl server:deploy automatically starts collecting Red Hat CodeReady Workspaces servers logs during installation of Red Hat CodeReady Workspaces
  • crwctl server:logs collects existing Red Hat CodeReady Workspaces server logs
  • crwctl workspace:logs collects workspace logs
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