Add OVNAvailabilityZone to improve UX

Currently to set az for ovn, user need to set
OVNCMSOptions with value:
"enable-chassis-as-gw,availability-zones=az-0:az-1:az-2",
which is not very good ux.
Adding new param OVNAvailabilityZone will improve ux
and improve configuration redabilities

Closes-Bug: #1923585
Change-Id: I90932c2445eda2cd0d6e661b561ce86a87dcdec2
(cherry picked from commit 1ddef85c91)

deployment/ovn/ovn-controller-container-puppet.yaml

@@ -80,6 +80,13 @@ parameters:
     description: Whether Metadata Service has to be enabled
     type: boolean
     default: true
+  OVNAvailabilityZone:
+    description: The az options to configure in ovs db.
+      eg. ['az-0', 'az-1', 'az-2']
+    type: comma_delimited_list
+    default: []
+    tags:
+      - role_specific
   OVNCMSOptions:
     description: The CMS options to configure in ovs db
     type: string
@@ -127,6 +134,8 @@ conditions:
   internal_tls_enabled: {equals: [{get_param: EnableInternalTLS}, true]}
   key_size_override_unset: {equals: [{get_param: ContainerOvnCertificateKeySize}, '']}
   enable_vlan_transparency: {equals: [{get_param: EnableVLANTransparency}, true]}
+  az_ovn_unset: {equals: [{get_param: OVNAvailabilityZone}, []]}
+
 
 resources:
 
@@ -143,8 +152,16 @@ resources:
         map_replace:
           - map_replace:
             - ovn::controller::ovn_bridge_mappings: NeutronBridgeMappings
-              ovn::controller::ovn_cms_options: OVNCMSOptions
               ovn::controller::enable_hw_offload: OvsHwOffload
+              ovn::controller::ovn_cms_options:
+                if:
+                  - az_ovn_unset
+                  - OVNCMSOptions
+                  - list_join:
+                    - ''
+                    - - OVNCMSOptions
+                      - ",availability-zones="
+                      - {get_param: OVNAvailabilityZone}
             - values: {get_param: [RoleParameters]}
           - values:
               NeutronBridgeMappings: {get_param: NeutronBridgeMappings}

releasenotes/notes/OVNAvailabilityZone-bc3d44a7e11d83e5.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Added new heat role specific param OVNAvailabilityZone to set availability-zones
+    for ovn. This param replace seting availability-zones throught OVNCMSOptions