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Removing OpenShift Serverless

Red Hat OpenShift Serverless 1.37

Removing Serverless from your cluster

Red Hat OpenShift Documentation Team

Abstract

This document details how to remove OpenShift Serverless from your cluster.

If you need to remove OpenShift Serverless from your cluster, you can do so by manually removing the OpenShift Serverless Operator and other OpenShift Serverless components. Before you can remove the OpenShift Serverless Operator, you must remove Knative Serving and Knative Eventing.

After uninstalling the OpenShift Serverless, you can remove the Operator and API custom resource definitions (CRDs) that remain on the cluster.

To fully remove OpenShift Serverless, complete the following procedures:

Before you can remove the OpenShift Serverless Operator, you must remove Knative Eventing. To uninstall Knative Eventing, you must remove the KnativeEventing custom resource (CR) and delete the knative-eventing namespace.

2.1. Uninstalling Knative Eventing
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You can uninstall Knative Eventing from your cluster by deleting the KnativeEventing custom resource and its namespace. This removes all event-driven components, channels, brokers, and event sources from the cluster.

Prerequisites

  • You have cluster administrator permissions on OpenShift Container Platform, or you have cluster or dedicated administrator permissions on OpenShift Dedicated.
  • You have installed the OpenShift CLI (oc).

Procedure

  1. Delete the KnativeEventing CR: 

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

  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

Before you can remove the OpenShift Serverless Operator, you must remove Knative Serving. To uninstall Knative Serving, you must remove the KnativeServing custom resource (CR) and delete the knative-serving namespace.

3.1. Uninstalling Knative Serving
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You can uninstall Knative Serving from your cluster by deleting the KnativeServing custom resource and its namespace. This removes all serverless application components and services from the cluster.

Prerequisites

  • You have cluster administrator permissions on OpenShift Container Platform, or you have cluster or dedicated administrator permissions on OpenShift Dedicated.
  • You have installed the OpenShift CLI (oc).

Procedure

  1. Delete the KnativeServing CR: 

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

  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

After you have removed Knative Serving and Knative Eventing, you can remove the OpenShift Serverless Operator. You can do this by using the web console or the oc CLI.

If you need to remove OpenShift Serverless Logic from your cluster, you can do so by manually removing the OpenShift Serverless Logic Operator and other OpenShift Serverless Logic components.

You can delete the OpenShift Serverless Logic Operator by using the web console.

After uninstalling the OpenShift Serverless, the Operator and API custom resource definitions (CRDs) remain on the cluster. You can use the following procedure to remove the remaining CRDs.

Delete the Operator and API Custom Resource Definitions (CRD) by using the following procedure.

Important

Removing the Operator and custom resource definitions (CRDs) also removes all resources that you defined by using them, including Knative services.

Prerequisites

  • Install the OpenShift CLI (oc).
  • You have cluster administrator permissions on OpenShift Container Platform, or you have cluster or dedicated administrator permissions on Red Hat OpenShift Service on AWS or OpenShift Dedicated.
  • You have uninstalled Knative Serving and removed the OpenShift Serverless Operator.

Procedure

  • To delete the remaining OpenShift Serverless CRDs, enter the following command: 

    $ oc get crd -oname | grep 'knative.dev' | xargs oc delete

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