[WIP] Add option to create second cinder backend in hci

Author: cescgina

hooks/playbooks/templates/config_ceph_backends.yaml.j2

@@ -65,6 +65,28 @@ patches:
         backend_host=hostgroup
         rbd_secret_uuid={{ cifmw_ceph_fsid }}
 
+    {% if cifmw_hci_second_backend | default('false') | bool -%}
+    - op: add
+      path: /spec/cinder/template/cinderVolumes/volume2
+      value:
+        customServiceConfig: |
+          [DEFAULT]
+          enabled_backends=ceph2
+          [ceph2]
+          volume_backend_name=ceph
+          volume_driver=cinder.volume.drivers.rbd.RBDDriver
+          rbd_ceph_conf=/etc/ceph/ceph.conf
+          rbd_user=openstack
+          rbd_pool=volumes
+          rbd_flatten_volume_from_snapshot=False
+          report_discard_supported=True
+          backend_host=hostgroup
+          rbd_secret_uuid={{ cifmw_ceph_fsid }}
+        networkAttachments:
+        - storage
+        replicas: 1
+    {% endif %}
+
     - op: replace
       path: /spec/glance/template/glanceAPIs/default/replicas
       value: {{ cifmw_services_glance_apis_replicas | default(1) }}