Comment 3 for bug 1822611

Here is a bundle extract for the Barbican/Barbican Vault service:

......

hacluster-barbican:
    charm: cs:hacluster
    options:
      cluster_count: 3
  hacluster-octavia:
    charm: cs:hacluster
    options:
      cluster_count: 3
  barbican:
    charm: cs:barbican
    num_units: 1
    bindings:
     "": *oam-space
     public: *public-space
     admin: *admin-space
     internal: *internal-space
     shared-db: *internal-space
    options:
      worker-multiplier: *worker-multiplier
      openstack-origin: *openstack-origin
      region: *openstack-region
      vip: *barbican-vip
      use-internal-endpoints: true
      #os-admin-hostname: *barbican-admin-hostname
      #os-internal-hostname: *barbican-internal-hostname
      #os-public-hostname: *barbican-public-hostname
    to:
    - lxd:0
    - lxd:2
    - lxd:4
  barbican-vault:
    charm: cs:barbican-vault

........