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Chapter 14. Destroying a hosted cluster
14.1. Destroying a hosted cluster on AWS
You can destroy a hosted cluster and its managed cluster resource on Amazon Web Services (AWS) by using the command-line interface (CLI).
14.1.1. Destroying a hosted cluster on AWS by using the CLI
You can use the command-line interface (CLI) to destroy a hosted cluster on Amazon Web Services (AWS).
Procedure
Delete the managed cluster resource on multicluster engine Operator by running the following command:
$ oc delete managedcluster <hosted_cluster_name> 1
- 1
- Replace
<hosted_cluster_name>
with the name of your cluster.
Delete the hosted cluster and its backend resources by running the following command:
$ hcp destroy cluster aws \ --name <hosted_cluster_name> \1 --infra-id <infra_id> \2 --role-arn <arn_role> \3 --sts-creds <path_to_sts_credential_file> \4 --base-domain <basedomain> 5
- 1
- Specify the name of your hosted cluster, for instance,
example
. - 2
- Specify the infrastructure name for your hosted cluster.
- 3
- Specify the Amazon Resource Name (ARN), for example,
arn:aws:iam::820196288204:role/myrole
. - 4
- Specify the path to your AWS Security Token Service (STS) credentials file, for example,
/home/user/sts-creds/sts-creds.json
. - 5
- Specify your base domain, for example,
example.com
.
ImportantIf your session token for AWS Security Token Service (STS) is expired, retrieve the STS credentials in a JSON file named
sts-creds.json
by running the following command:$ aws sts get-session-token --output json > sts-creds.json
14.2. Destroying a hosted cluster on bare metal
You can destroy hosted clusters on bare metal by using the command-line interface (CLI) or the multicluster engine Operator web console.
14.2.1. Destroying a hosted cluster on bare metal by using the CLI
You can use the hcp
command-line interface (CLI) to destroy a hosted cluster on bare metal.
Procedure
Delete the hosted cluster and its backend resources by running the following command:
$ hcp destroy cluster agent --name <hosted_cluster_name> 1
- 1
- Specify the name of your hosted cluster.
14.2.2. Destroying a hosted cluster on bare metal by using the web console
You can use the multicluster engine Operator web console to destroy a hosted cluster on bare metal.
Procedure
-
In the console, click Infrastructure
Clusters. - On the Clusters page, select the cluster that you want to destroy.
- In the Actions menu, select Destroy clusters to remove the cluster.
14.3. Destroying a hosted cluster on OpenShift Virtualization
You can destroy a hosted cluster and its managed cluster resource on OpenShift Virtualization by using the command-line interface (CLI).
14.3.1. Destroying a hosted cluster on OpenShift Virtualization by using the CLI
You can use the command-line interface (CLI) to destroy a hosted cluster and its managed cluster resource on OpenShift Virtualization.
Procedure
Delete the managed cluster resource on multicluster engine Operator by running the following command:
$ oc delete managedcluster <hosted_cluster_name>
Delete the hosted cluster and its backend resources by running the following command:
$ hcp destroy cluster kubevirt --name <hosted_cluster_name>
14.4. Destroying a hosted cluster on IBM Z
You can destroy a hosted cluster on x86
bare metal with IBM Z compute nodes and its managed cluster resource by using the command-line interface (CLI).
14.4.1. Destroying a hosted cluster on x86 bare metal with IBM Z compute nodes
To destroy a hosted cluster and its managed cluster on x86
bare metal with IBM Z compute nodes, you can use the command-line interface (CLI).
Procedure
Scale the
NodePool
object to0
nodes by running the following command:$ oc -n <hosted_cluster_namespace> scale nodepool <nodepool_name> --replicas 0
After the
NodePool
object is scaled to0
, the compute nodes are detached from the hosted cluster. In OpenShift Container Platform version 4.17, this function is applicable only for IBM Z with KVM. For z/VM and LPAR, you must delete the compute nodes manually.If you want to re-attach compute nodes to the cluster, you can scale up the
NodePool
object with the number of compute nodes that you want. For z/VM and LPAR to reuse the agents, you must re-create them by using theDiscovery
image.ImportantIf the compute nodes are not detached from the hosted cluster or are stuck in the
Notready
state, delete the compute nodes manually by running the following command:$ oc --kubeconfig <hosted_cluster_name>.kubeconfig delete node <compute_node_name>
Verify the status of the compute nodes by entering the following command:
$ oc --kubeconfig <hosted_cluster_name>.kubeconfig get nodes
After the compute nodes are detached from the hosted cluster, the status of the agents is changed to
auto-assign
.Delete the agents from the cluster by running the following command:
$ oc -n <hosted_control_plane_namespace> delete agent <agent_name>
NoteYou can delete the virtual machines that you created as agents after you delete the agents from the cluster.
Destroy the hosted cluster by running the following command:
$ hcp destroy cluster agent --name <hosted_cluster_name> --namespace <hosted_cluster_namespace>
14.5. Destroying a hosted cluster on IBM Power
You can destroy a hosted cluster on IBM Power by using the command-line interface (CLI).
14.5.1. Destroying a hosted cluster on IBM Power by using the CLI
To destroy a hosted cluster on IBM Power, you can use the hcp command-line interface (CLI).
Procedure
Delete the hosted cluster by running the following command:
$ hcp destroy cluster agent --name=<hosted_cluster_name> \1 --namespace=<hosted_cluster_namespace> \2 --cluster-grace-period <duration> 3
14.6. Destroying a hosted cluster on non-bare metal agent machines
You can destroy hosted clusters on non-bare metal agent machines by using the command-line interface (CLI) or the multicluster engine Operator web console.
14.6.1. Destroying a hosted cluster on non-bare metal agent machines
You can use the hcp
command-line interface (CLI) to destroy a hosted cluster on non-bare metal agent machines.
Procedure
Delete the hosted cluster and its backend resources by running the following command:
$ hcp destroy cluster agent --name <hosted_cluster_name> 1
- 1
- Replace
<hosted_cluster_name>
with the name of your hosted cluster.
14.6.2. Destroying a hosted cluster on non-bare metal agent machines by using the web console
You can use the multicluster engine Operator web console to destroy a hosted cluster on non-bare metal agent machines.
Procedure
-
In the console, click Infrastructure
Clusters. - On the Clusters page, select the cluster that you want to destroy.
- In the Actions menu, select Destroy clusters to remove the cluster.