Fix list tags failure in podman_search (#875)

Fix #874
Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>

plugins/modules/podman_search.py

@@ -87,10 +87,11 @@ def search_images(module, executable, term, limit, list_tags):
         command.extend(['--list-tags'])
 
     rc, out, err = module.run_command(command)
-
+    if rc != 0 and list_tags and out == "" and "fetching tags list" in err:
+        return out, err
     if rc != 0:
         module.fail_json(msg="Unable to gather info for '{0}': {1}".format(term, err))
-    return out
+    return out, err
 
 
 def main():
@@ -110,7 +111,7 @@ def main():
     list_tags = module.params.get('list_tags')
     executable = module.get_bin_path(executable, required=True)
 
-    result_str = search_images(module, executable, term, limit, list_tags)
+    result_str, errors = search_images(module, executable, term, limit, list_tags)
     if result_str == "":
         results = []
     else:
@@ -121,7 +122,8 @@ def main():
 
     results = dict(
         changed=False,
-        images=results
+        images=results,
+        stderr=errors,
     )
 
     module.exit_json(**results)

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

@@ -12,6 +12,18 @@
         that:
           - info_0.images | length == 0
 
+    - name: Search for an invalid image with tags
+      containers.podman.podman_search:
+        term: registry.fedoraproject.org/invalidtermnope
+        executable: "{{ test_executable | default('podman') }}"
+        list_tags: true
+      register: info_0_1
+
+    - name: Check results for no matching images
+      assert:
+        that:
+          - info_0_1.images | length == 0
+
     - name: Search for matching images
       containers.podman.podman_search:
         term: etcd