Fix purge cluster failed when local container images does not exist.
Purge node-exporter and grafana-server only when dashboard_enabled is set to True.
Signed-off-by: wujie1993 qq594jj@gmail.com
The podman support was added to the purge-container-cluster playbook but
containers are always used for the dashboard even on non containerized
deployment.
This commits adds the podman support on purging the dashboard resources
in the purge-cluster playbook.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>