Uninstalling a cluster on Azure¶

When you no longer need an OpenShift Container Platform cluster on Microsoft Azure, you can uninstall the cluster and remove related cloud resources. Complete uninstallation so you avoid ongoing costs and leave no orphaned infrastructure.

Removing a cluster that uses installer-provisioned infrastructure¶

To remove an OpenShift Container Platform cluster that uses installer-provisioned infrastructure, you can use the installation program and the installation files from your original deployment to uninstall the cluster from your cloud platform.

Note

After uninstallation, check your cloud provider for any resources that were not removed properly, especially with user-provisioned infrastructure clusters. Some resources might exist because either the installation program did not create the resource or could not access the resource.

Prerequisites

You have a copy of the installation program that you used to deploy the cluster.
You have the files that the installation program generated when you created your cluster.

Procedure

From the directory that has the installation program on the computer that you used to install the cluster, run the following command:
```
$ ./openshift-install destroy cluster \
--dir <installation_directory> --log-level info
```
where:

<installation_directory>

Specify the path to the directory that you stored the installation files in.

--log-level info

To view different details, specify warn, debug, or error instead of info.

Note

You must specify the directory that includes the cluster definition files for your cluster. The installation program requires the metadata.json file in this directory to delete the cluster.
Optional: Delete the <installation_directory> directory and the OpenShift Container Platform installation program.

Deleting Microsoft Azure resources with the Cloud Credential Operator utility¶

After uninstalling an OpenShift Container Platform cluster that uses short-term credentials managed outside the cluster, you can use the Cloud Credential Operator (CCO) utility (ccoctl) to remove the Microsoft Azure resources that ccoctl created during installation.

Prerequisites

Extract and prepare the ccoctl binary.
Uninstall an OpenShift Container Platform cluster on Azure that uses short-term credentials.

Procedure

Delete the Azure resources that ccoctl created by running the following command:

$ ccoctl azure delete \
  --name=<name> \
  --region=<azure_region> \
  --subscription-id=<azure_subscription_id> \
  --delete-oidc-resource-group

where:

<name>: Matches the name that was originally used to create and tag the cloud resources.
<azure_region>: is the Azure region in which to delete cloud resources.
<azure_subscription_id>: is the Azure subscription ID for which to delete cloud resources.

Verification

To verify that the resources are deleted, query Azure. For more information, refer to Azure documentation.