31.9. Identifying clusters by UUID

When you create a cluster it has an associated UUID. Since a cluster name is not a unique cluster identifier, a third-party tool such as a configuration management database that manages multiple clusters with the same name can uniquely identify a cluster by means of its UUID. You can display the current cluster UUID with the pcs cluster config [show] command, which includes the cluster UUID in its output.

To add a UUID to an existing cluster, run the following command.

# pcs cluster config uuid generate

To regenerate a UUID for a cluster with an existing UUID, run the following command.

# pcs cluster config uuid generate --force