When Nova, Glance, or Cinder are deployed alongside an external Ceph deployment
handlers will fail to trigger if keyring files are updated, which results in the
containers not being restarted.
This change adds the missing 'when' conditions for nova-libvirt, nova-compute,
cinder-volume, cinder-backup, and glance-api containers.
Change-Id: I8e183aac9a72e7a7210f7edc7cdcbaedd4fbcaa9