Chapter 6. Removing Service Telemetry Framework from the Red Hat OpenShift Container Platform environment
Remove Service Telemetry Framework (STF) from an Red Hat OpenShift Container Platform environment if you no longer require the STF functionality.
To remove STF from the Red Hat OpenShift Container Platform environment, you must perform the following tasks:
- Delete the namespace.
- Remove the cert-manager Operator.
6.1. Deleting the namespace
To remove the operational resources for STF from Red Hat OpenShift Container Platform, delete the namespace.
Procedure
Run the
oc deletecommand:$ oc delete project service-telemetry
Verify that the resources have been deleted from the namespace:
$ oc get all No resources found.
6.2. Removing the cert-manager Operator
If you are not using the cert-manager Operator for any other applications, delete the Subscription, ClusterServiceVersion, and CustomResourceDefinitions.
Procedure
Delete the Subscription from the
openshift-cert-manager-operatornamespace:$ oc delete --namespace=openshift-cert-manager-operator subscription openshift-cert-manager-operator subscription.operators.coreos.com "openshift-cert-manager-operator" deleted
Retrieve the version number of your installed ClusterServiceVersion:
$ oc get --namespace=openshift-cert-manager-operator subscription openshift-cert-manager-operator -oyaml | grep currentCSV
Example output:
currentCSV: openshift-cert-manager.v1.7.1
Delete the ClusterServiceVersion from the
openshift-cert-manager-operatornamespace:$ oc delete --namespace=openshift-cert-manager-operator csv openshift-cert-manager.v1.7.1
Example output:
clusterserviceversion.operators.coreos.com "openshift-cert-manager.v1.7.1" deleted
Get the current list of CustomResourceDefinitions provided by the Operator so they can be deleted after removal of the ClusterServiceVersion:
$ oc get csv -n openshift-cert-manager-operator openshift-cert-manager.v1.7.1 -oyaml | grep "kind: CustomResourceDefinition" -A2 | grep name | awk '{print $2}'Example output:
certificaterequests.cert-manager.io certificates.cert-manager.io certmanagers.config.openshift.io certmanagers.operator.openshift.io challenges.acme.cert-manager.io clusterissuers.cert-manager.io issuers.cert-manager.io orders.acme.cert-manager.io
Delete the CustomResourceDefinitions related to the cert-manager Operator:
$ oc delete crd certificaterequests.cert-manager.io certificates.cert-manager.io certmanagers.config.openshift.io certmanagers.operator.openshift.io challenges.acme.cert-manager.io clusterissuers.cert-manager.io issuers.cert-manager.io orders.acme.cert-manager.io
Example output:
customresourcedefinition.apiextensions.k8s.io "certificaterequests.cert-manager.io" deleted customresourcedefinition.apiextensions.k8s.io "certificates.cert-manager.io" deleted customresourcedefinition.apiextensions.k8s.io "certmanagers.config.openshift.io" deleted customresourcedefinition.apiextensions.k8s.io "certmanagers.operator.openshift.io" deleted customresourcedefinition.apiextensions.k8s.io "challenges.acme.cert-manager.io" deleted customresourcedefinition.apiextensions.k8s.io "clusterissuers.cert-manager.io" deleted customresourcedefinition.apiextensions.k8s.io "issuers.cert-manager.io" deleted customresourcedefinition.apiextensions.k8s.io "orders.acme.cert-manager.io" deleted
Delete the namespaces owned by the cert-manager Operator:
$ oc delete project openshift-cert-manager openshift-cert-manager-operator
Example output:
project.project.openshift.io "openshift-cert-manager" deleted project.project.openshift.io "openshift-cert-manager-operator" deleted
Additional information
