anchor.diff:  Or if you wanted to apply if to a selection of clusters:
   ....
   pgo label --label=env=research  --selector=project=xray
  -pgo label all --label=env=research 
  +pgo label all --label=env=research
   ....
   
   In the first example, a label of *env=research* is applied to the cluster
  
positive.code: When a pgbouncer deployment is added into your cluster, it
  will cause the creation of a Secret that holds the pgbouncer
  configuration files:
   * pg_hba.conf 
   * pgbouncer.ini
   * users.txt
  
  
negative.code: ....
  
  The pgBackRest backrestrepo PVCs are created using the pgo.yaml `BackupStorage` setting.
  Typically, this will be a RWX file system but if the file system is RWO the PVCs will be
  created without having write access and a backup and restore will fail. The RWX file
  system setup will allow you to restore from this PVC without having to shutdown the currently
  attached PostgreSQL cluster.
  