Ensure proper permissions for OVN Metadata service

With change of the user under which ovn-metadata service is
running from root to neutron, it was clean forgot to change an
ownership for existing configuration produced be the service during
upgrades.

This patch adds an extra folder defenition that should ensure ownership
being correct for all files related to the ovn-metadata-proxy service.

Closes-Bug: #2077684
Change-Id: I8e82558fce8a420dca5fb5302dd5f73e40230e48
(cherry picked from commit d81a2fb7aa23643a3729f76940dd996a3854aed1)

tasks/neutron_pre_install.yml

@@ -58,6 +58,7 @@
     owner: "{{ item.owner | default(neutron_system_user_name) }}"
     group: "{{ item.group | default(neutron_system_group_name) }}"
     mode: "{{ item.mode | default(omit) }}"
+    recurse: "{{ item.recurse | default(omit) }}"
   when:
     - (item.condition | default(true)) | bool
   with_items:
@@ -72,6 +73,10 @@
       group: "root"
     - path: "{{ neutron_system_home_folder }}"
       mode: "0755"
+    - path: "{{ neutron_system_home_folder }}/ovn-metadata-proxy"
+      mode: "u=rwX,g=rX,o=rX"
+      recurse: True
+      condition: "{{ (neutron_plugin_type == 'ml2.ovn' and neutron_services['neutron-ovn-metadata-agent']['group'] in group_names) }}"
     - path: "{{ neutron_system_home_folder }}/ha_confs"
       state: "{{ (neutron_plugin_type == 'ml2.ovn') | ternary('absent', 'directory') }}"