Retrive non-tripleo containers from buildah images

Due to fallback registry, non_tripleo_containers list does not
contains the list of actual pulled containers, it needs to be
retrived from buildah images output otherwise while pushing
the containers it will fail complaining containers does not
exists.

In this patch, we are retriving the image id and then passing
those image id to buildah to push it to content provider
registry.

It also collects only stdout from non_tripleo register
ansible var to store necessary data in the file.

Related-Bug: #1920873

Signed-off-by: Chandan Kumar (raukadah) <chkumar@redhat.com>
Change-Id: I972d03650653a63c0f5df0b3c2ef7bb710b4afba

roles/container-build/tasks/non_tripleo_containers.yml

@@ -104,10 +104,10 @@
 
     # NOTE(mwhahaha): use buildah because --format can only be specified with buildah push.
     # Additionally we could switch to oci, but v2v2 is what we convert on the undercloud.
-    - name: Pull non-tripleo containers (ceph, alertmanager, prometheus) to the content provider registry
+    - name: Push non-tripleo containers (ceph, alertmanager, prometheus) to the content provider registry
       shell: >
-        buildah images;
-        buildah push --format=v2s2 --tls-verify=False --log-level debug {{ item }} \
+        buildah push --format=v2s2 --tls-verify=False --log-level debug \
+          $(buildah images -q {{ item.split('/')[-1] }}) \
           docker://{{ content_provider_registry_ip }}:{{ content_provider_registry_port }}/{{ docker_registry_namespace }}/{{ item.split('/')[-1] }};
       with_items: "{{ non_tripleo_containers }}"
       retries: 3
@@ -119,7 +119,8 @@
         - skip_ansible_lint
 
 - name: Dump non-tripleo containers output to file
-  copy:
+  local_action:
+    module: copy
     content: "{{ non_tripleo }}"
     dest: "{{ ansible_user_dir }}/non_tripleo_containers.log"
   when: non_tripleo is defined