Fix podman logout tests for v4 (#526)

Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>

Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>

plugins/modules/podman_logout.py

@@ -110,7 +110,7 @@ def logout(module, executable, registry, authfile, all_registries, ignore_docker
         # The command will return successfully but not log out the user if the
         # credentials were initially created using docker. Catch this behaviour:
         if not ignore_docker_credentials:
-            module.fail_json(msg="Unable to log out of %s: %s" % (registry, out))
+            module.fail_json(msg="Unable to log out %s: %s" % (registry or '', out))
         else:
             changed = False
     return changed, out, err

tests/integration/targets/podman_logout/tasks/main.yml

@@ -23,6 +23,7 @@
       containers.podman.podman_logout:
         executable: "{{ test_executable | default('podman') }}"
       register: non_existing_registry
+      ignore_errors: true
 
     - name: Check results
       assert: