Sync kolla_tag with kolla-ansible

Without this change, Kayobe was tagging container images with `zed` when
kolla-ansible was expecting something like `zed-ubuntu-jammy`.

Change-Id: I23c409900db2c37105e7b218bbaedcfacb235787

ansible/inventory/group_vars/all/kolla

@@ -90,9 +90,10 @@ kolla_docker_registry_password:
 # Default is {{ openstack_release }}.
 kolla_openstack_release: "{{ openstack_release }}"
 
-# Docker tag applied to built container images. Default is
-# {{ kolla_openstack_release }}.
-kolla_tag: "{{ kolla_openstack_release }}"
+# Docker tag applied to built container images. Default is {{
+# kolla_openstack_release }}-{{ kolla_base_distro }}-{{
+# kolla_base_distro_version }}.
+kolla_tag: "{{ kolla_openstack_release }}-{{ kolla_base_distro }}-{{ kolla_base_distro_version }}"
 
 # Dict mapping names of sources to their definitions.
 # See kolla.common.config for details.

etc/kayobe/kolla.yml

@@ -102,8 +102,9 @@
 # Default is {{ openstack_release }}.
 #kolla_openstack_release:
 
-# Docker tag applied to built container images. Default is
-# {{ kolla_openstack_release }}.
+# Docker tag applied to built container images. Default is {{
+# kolla_openstack_release }}-{{ kolla_base_distro }}-{{
+# kolla_base_distro_version }}.
 #kolla_tag:
 
 # Dict mapping names of sources to their definitions.

releasenotes/notes/sync-kolla-tag-e4766b4fb395765e.yaml

+---
+fixes:
+  - |
+    Synchronises the default value ``kolla_tag`` with the container image
+    tagging scheme expected by Kolla Ansible. This ensures images are built
+    with tags such as ``zed-ubuntu-jammy`` instead of ``zed``.