Only fetch details when necessary.

cloud/docker/docker.py

@@ -1119,15 +1119,17 @@ class DockerManager(object):
             repo_tags = [normalize_image(self.module.params.get('image'))]
 
         for i in self.client.containers(all=True):
+            details = None
+
+            if name:
+                matches = name in i.get('Names', [])
+            else:
                 details = self.client.inspect_container(i['Id'])
                 details = _docker_id_quirk(details)
 
                 running_image = normalize_image(details['Config']['Image'])
                 running_command = i['Command'].strip()
 
-            if name:
-                matches = name in i.get('Names', [])
-            else:
                 image_matches = running_image in repo_tags
 
                 # if a container has an entrypoint, `command` will actually equal
@@ -1137,6 +1139,10 @@ class DockerManager(object):
                 matches = image_matches and command_matches
 
             if matches:
+                if not details:
+                    details = self.client.inspect_container(i['Id'])
+                    details = _docker_id_quirk(details)
+
                 deployed.append(details)
 
         return deployed