Add missing "cloud-init" as "cloud-init-datasource" don't have dependency on it.

Change-Id: I8f75fb1237183fbfbb790cd3089a2346a7e49277

ansible/inventory/group_vars/all/overcloud-dib

@@ -34,9 +34,10 @@ overcloud_dib_os_element: "{{ 'rocky-container' if os_distribution == 'rocky' el
 overcloud_dib_os_release: "{{ os_release }}"
 
 # List of default DIB elements. Default is ["{{ overcloud_dib_os_element }}",
-# "cloud-init-datasources", "enable-serial-console", "vm"].
+# "cloud-init", "cloud-init-datasources", "enable-serial-console", "vm"].
 overcloud_dib_elements_default:
   - "{{ overcloud_dib_os_element }}"
+  - "cloud-init"
   - "cloud-init-datasources"
   - "enable-serial-console"
   - "vm"

etc/kayobe/overcloud-dib.yml

@@ -30,7 +30,7 @@
 #overcloud_dib_os_release:
 
 # List of default DIB elements. Default is ["{{ overcloud_dib_os_element }}",
-# "cloud-init-datasources", "enable-serial-console", "vm"].
+# "cloud-init", "cloud-init-datasources", "enable-serial-console", "vm"].
 #overcloud_dib_elements_default:
 
 # List of additional DIB elements. Default is none.

releasenotes/notes/fix-cloud-init-not-default-eb8ecbd00356467e.yaml

+fixes:
+  - |
+    Fixes an issue where networking failed to come up after kayobe
+    ``overcloud host provision`` as cloud-init wasn't installed. Add
+    ``cloud-init`` element to ``overcloud_dib_elements_default`` so it's no
+    longer missing.
+    Expected behavior was that ``cloud-init-datasource`` had it as dependency.