Add support for RedHat platforms on ensure-podman

- makes ensure-podman work on additional platforms
- prevents regression on new platforms fedora-30 and centos-8
- enables validation of podman engine

Change-Id: I5842ad22d94522f707ef743622b8950839d96dff

roles/ensure-podman/README.rst

@@ -2,3 +2,7 @@ Install podman container manager
 
 **Role Variables**
 
+.. zuul:rolevar:: ensure_podman_validate
+   :default: false
+
+   Used to enable validation of podman engine.

roles/ensure-podman/defaults/main.yaml

@@ -0,0 +1 @@
+ensure_podman_validate: false

roles/ensure-podman/tasks/RedHat.yaml

@@ -0,0 +1,4 @@
+- name: Install podman (RedHat)
+  become: true
+  package:
+    name: podman

roles/ensure-podman/tasks/main.yaml

@@ -6,3 +6,13 @@
     - "{{ ansible_distribution }}.yaml"
     - "{{ ansible_os_family }}.yaml"
     - "default.yaml"
+
+- name: Validate podman engine
+  when: ensure_podman_validate
+  # on purpose to verify that non-root user can call docker/podman
+  become: false
+  shell: |
+    podman version
+    podman info
+    podman ps
+  changed_when: false

test-playbooks/ensure-podman/main.yaml

@@ -1,4 +1,6 @@
 - hosts: all
+  vars:
+    ensure_podman_validate: true
   roles:
     - ensure-podman
 

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

@@ -263,11 +263,39 @@
       This job tests the ensure-podman role.  It is not meant to be
       used directly but rather run on changes to roles in the
       zuul-jobs repo.
+    abstract: true
     files:
       - roles/ensure-podman/.*
       - test-playbooks/ensure-podman/.*
     run: test-playbooks/ensure-podman/main.yaml
 
+- job:
+    name: zuul-jobs-test-ensure-podman-centos-8
+    description: Tests ensure-podman role on centos-8
+    parent: zuul-jobs-test-ensure-podman
+    nodeset:
+      nodes:
+        - name: centos-8
+          label: centos-8
+
+- job:
+    name: zuul-jobs-test-ensure-podman-fedora-30
+    description: Tests ensure-podman role on fedora-30
+    parent: zuul-jobs-test-ensure-podman
+    nodeset:
+      nodes:
+        - name: fedora-30
+          label: fedora-30
+
+- job:
+    name: zuul-jobs-test-ensure-podman-ubuntu-bionic
+    description: Tests ensure-podman role on ubuntu-bionic
+    parent: zuul-jobs-test-ensure-podman
+    nodeset:
+      nodes:
+        - name: ubuntu-bionic
+          label: ubuntu-bionic
+
 # -* AUTOGENERATED *-
 #  The following project section is autogenerated by
 #    tox -e update-test-platforms
@@ -290,6 +318,8 @@
         - zuul-jobs-test-registry-buildset-registry-openshift-docker
         - zuul-jobs-test-ensure-kubernetes-docker
         - zuul-jobs-test-ensure-kubernetes-crio
-        - zuul-jobs-test-ensure-podman
+        - zuul-jobs-test-ensure-podman-centos-8
+        - zuul-jobs-test-ensure-podman-fedora-30
+        - zuul-jobs-test-ensure-podman-ubuntu-bionic
     gate:
       jobs: *id001