# installed using ansible-ops https://github.com/openstack/openstack-ansible-ops/tree/master/multi-node-aio/
# using the stable/rocky branch

root@infra1:/etc/openstack_deploy# cat env.d/cinder-volume.yml
---
# This file contains an example to show how to set
# the cinder-volume service to run in a container.
#
# Important note:
# When using LVM or any iSCSI-based cinder backends, such as NetApp with
# iSCSI protocol, the cinder-volume service *must* run on metal.
# Reference: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1226855

container_skel:
  cinder_volumes_container:
    properties:
      is_metal: false


root@infra1:/etc/openstack_deploy# cat openstack_user_config.yml
....
infra_block: &infra_block
  infra1:
    ip: 10.0.236.100
    container_vars:
      container_tech: "lxc"
      cinder_backends:
        limit_container_types: cinder_volume
        ceph:
          volume_driver: cinder.volume.drivers.rbd.RBDDriver
          rbd_pool: volumes
          rbd_ceph_conf: /etc/ceph/ceph.conf
          rbd_store_chunk_size: 8
          volume_backend_name: rbddriver
          rbd_user: "{{ cinder_ceph_client }}"
          rbd_secret_uuid: "{{ cinder_ceph_client_uuid }}"
          report_discard_supported: true

  infra2:
    ip: 10.0.236.101
    container_vars:
      container_tech: "lxc"
      cinder_backends:
        ceph:
          volume_driver: cinder.volume.drivers.rbd.RBDDriver
          rbd_pool: volumes
          rbd_ceph_conf: /etc/ceph/ceph.conf
          rbd_store_chunk_size: 8
          volume_backend_name: rbddriver
          rbd_user: "{{ cinder_ceph_client }}"
          rbd_secret_uuid: "{{ cinder_ceph_client_uuid }}"
          report_discard_supported: true
  infra3:
    ip: 10.0.236.102
    container_vars:
      container_tech: "lxc"
      cinder_backends:
        limit_container_types: cinder_volume
        ceph:
          volume_driver: cinder.volume.drivers.rbd.RBDDriver
          rbd_pool: volumes
          rbd_ceph_conf: /etc/ceph/ceph.conf
          rbd_store_chunk_size: 8
          volume_backend_name: rbddriver
          rbd_user: "{{ cinder_ceph_client }}"
          rbd_secret_uuid: "{{ cinder_ceph_client_uuid }}"
          report_discard_supported: true
....
# cinder api services
storage-infra_hosts: *infra_block