Chapter 10. Removing Serverless

Procedure

1. Delete the KnativeEventing CR:

   $ oc delete knativeeventings.operator.knative.dev knative-eventing -n knative-eventing

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2. After the command has completed and all pods have been removed from the knative-eventing namespace, delete the namespace:

   $ oc delete namespace knative-eventing

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Procedure

1. Delete the KnativeServing CR:

   $ oc delete knativeservings.operator.knative.dev knative-serving -n knative-serving

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2. After the command has completed and all pods have been removed from the knative-serving namespace, delete the namespace:

   $ oc delete namespace knative-serving

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Procedure

1. Navigate to the Operators Installed Operators page.
2. Scroll or enter a keyword into the Filter by name field to find the Operator that you want to remove. Then, click on it.

3. On the right side of the Operator Details page, select Uninstall Operator from the Actions list.

   An Uninstall Operator? dialog box is displayed.

4. Select Uninstall to remove the Operator, Operator deployments, and pods. Following this action, the Operator stops running and no longer receives updates.

   Note

   This action does not remove resources managed by the Operator, including custom resource definitions (CRDs) and custom resources (CRs). Dashboards and navigation items enabled by the web console and off-cluster resources that continue to run might need manual clean up. To remove these after uninstalling the Operator, you might need to manually delete the Operator CRDs.

Procedure

1. Check the current version of the subscribed Operator (for example, jaeger) in the currentCSV field:

   $ oc get subscription jaeger -n openshift-operators -o yaml | grep currentCSV

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   Example output

     currentCSV: jaeger-operator.v1.8.2

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2. Delete the subscription (for example, jaeger):

   $ oc delete subscription jaeger -n openshift-operators

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   Example output

   subscription.operators.coreos.com "jaeger" deleted

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3. Delete the CSV for the Operator in the target namespace using the currentCSV value from the previous step:

   $ oc delete clusterserviceversion jaeger-operator.v1.8.2 -n openshift-operators

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   Example output

   clusterserviceversion.operators.coreos.com "jaeger-operator.v1.8.2" deleted

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Procedure

1. Get the names of the Subscription and ClusterServiceVersion objects from the namespace where the Operator is installed:

   $ oc get sub,csv -n <namespace>

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   Example output

   NAME                                                       PACKAGE                  SOURCE             CHANNEL
   subscription.operators.coreos.com/elasticsearch-operator   elasticsearch-operator   redhat-operators   5.0
   
   NAME                                                                         DISPLAY                            VERSION    REPLACES   PHASE
   clusterserviceversion.operators.coreos.com/elasticsearch-operator.5.0.0-65   OpenShift Elasticsearch Operator   5.0.0-65              Succeeded

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2. Delete the subscription:

   $ oc delete subscription <subscription_name> -n <namespace>

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3. Delete the cluster service version:

   $ oc delete csv <csv_name> -n <namespace>

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4. Get the names of any failing jobs and related config maps in the openshift-marketplace namespace:

   $ oc get job,configmap -n openshift-marketplace

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   Example output

   NAME                                                                        COMPLETIONS   DURATION   AGE
   job.batch/1de9443b6324e629ddf31fed0a853a121275806170e34c926d69e53a7fcbccb   1/1           26s        9m30s
   
   NAME                                                                        DATA   AGE
   configmap/1de9443b6324e629ddf31fed0a853a121275806170e34c926d69e53a7fcbccb   3      9m30s

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5. Delete the job:

   $ oc delete job <job_name> -n openshift-marketplace

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   This ensures pods that try to pull the inaccessible image are not recreated.

6. Delete the config map:

   $ oc delete configmap <configmap_name> -n openshift-marketplace

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7. Reinstall the Operator using OperatorHub in the web console.