[DCN] Support Manila Shares with Local Ceph Clusters in DCN

This update enables deploying three Manila shares, each connected
to its local Ceph cluster within the same availability zone (AZ).
In DCN, each "site" is configured to use its respective local Ceph
cluster.

dt/dcn/edpm-post-ceph/nodeset/kustomization.yaml

@@ -214,12 +214,12 @@ replacements:
   - source:
       kind: ConfigMap
       name: service-values
-      fieldPath: data.manila.manilaShares.share1.customServiceConfig
+      fieldPath: data.manila.manilaShares
     targets:
       - select:
           kind: OpenStackControlPlane
         fieldPaths:
-          - spec.manila.template.manilaShares.share1.customServiceConfig
+          - spec.manila.template.manilaShares
         options:
           create: true
   - source:

examples/dt/dcn/service-values.yaml

@@ -196,13 +196,33 @@ data:
         replicas: 1
         type: edge
   manila:
-    enabled: false
+    customServiceConfig: |
+      [DEFAULT]
+      storage_availability_zone = az0
+    enabled: true
     manilaAPI:
       customServiceConfig: |
         [DEFAULT]
         enabled_share_protocols=nfs,cephfs
     manilaShares:
-      share1:
+      az0:
+        customServiceConfig: |
+          [DEFAULT]
+          enabled_share_backends = cephfs
+          enabled_share_protocols = cephfs
+          [cephfs]
+          driver_handles_share_servers = False
+          share_backend_name = cephfs
+          share_driver = manila.share.drivers.cephfs.driver.CephFSDriver
+          cephfs_conf_path = /etc/ceph/az0.conf
+          cephfs_cluster_name = az0
+          cephfs_auth_id=openstack
+          cephfs_volume_mode = 0755
+          cephfs_protocol_helper_type = CEPHFS
+          backend_availability_zone = az0
+        networkAttachments:
+          - storage
+      az1:
         customServiceConfig: |
           [DEFAULT]
           enabled_share_backends = cephfs
@@ -211,11 +231,31 @@ data:
           driver_handles_share_servers = False
           share_backend_name = cephfs
           share_driver = manila.share.drivers.cephfs.driver.CephFSDriver
-          cephfs_conf_path = /etc/ceph/ceph.conf
-          cephfs_cluster_name = ceph
+          cephfs_conf_path = /etc/ceph/az1.conf
+          cephfs_cluster_name = az1
           cephfs_auth_id=openstack
           cephfs_volume_mode = 0755
           cephfs_protocol_helper_type = CEPHFS
+          backend_availability_zone = az1
+        networkAttachments:
+          - storage
+      az2:
+        customServiceConfig: |
+          [DEFAULT]
+          enabled_share_backends = cephfs
+          enabled_share_protocols = cephfs
+          [cephfs]
+          driver_handles_share_servers = False
+          share_backend_name = cephfs
+          share_driver = manila.share.drivers.cephfs.driver.CephFSDriver
+          cephfs_conf_path = /etc/ceph/az2.conf
+          cephfs_cluster_name = az2
+          cephfs_auth_id=openstack
+          cephfs_volume_mode = 0755
+          cephfs_protocol_helper_type = CEPHFS
+          backend_availability_zone = az2
+        networkAttachments:
+          - storage
   neutron:
     template:
       customServiceConfig: |