ensure-podman: refactor to use ensure--package-repositories

This patch refactors ensure-podman to use the new generic role
to allow it to be cross-platform in the future.

Change-Id: Id9ad0fbaeb9d19d022393ad16a27f11260c45da0

roles/ensure-podman/tasks/Ubuntu.yaml

@@ -1,8 +1,9 @@
-- name: Install projectatomic PPA
-  apt_repository:
-    repo: 'ppa:projectatomic/ppa'
-    state: present
-  become: yes
+- name: Add all repositories
+  include_role:
+    name: ensure-package-repositories
+  vars:
+    repositories_list:
+      - repo: ppa:projectatomic/ppa
 
 - name: Install podman
   package:

zuul-tests.d/container-roles-jobs.yaml

@@ -103,6 +103,7 @@
       - roles/pull-from-intermediate-registry/.*
       - roles/push-to-intermediate-registry/.*
       - roles/ensure-podman/.*
+      - roles/ensure-package-repositories/.*
       - roles/build-container-image/.*
       - roles/run-buildset-registry/.*
       - roles/use-buildset-registry/.*
@@ -271,6 +272,7 @@
     abstract: true
     files:
       - roles/ensure-podman/.*
+      - roles/ensure-package-repositories/.*
       - test-playbooks/ensure-podman/.*
     run: test-playbooks/ensure-podman/main.yaml