container: T6702: re-add missing UNIX API socket (#4039)

During podman upgrade and a build from the original source the UNIX socket
definition for systemd got lost in translation.

This commit re-adds the UNIX socket which is started on boot to interact with
Podman.

Example:
  curl --unix-socket /run/podman/podman.sock -H 'content-type: application/json' \
    -sf http://localhost/containers/json
(cherry picked from commit f67e217f2716937115a3bdf6d316b172bbec75e5)

Co-authored-by: Christian Breunig <christian@breunig.cc>

1 files changed, 18 insertions, 0 deletions

diff --git a/smoketest/scripts/cli/test_container.py b/smoketest/scripts/cli/test_container.py
index 3dd97a175..5e33eba40 100755
--- a/smoketest/scripts/cli/test_container.py
+++ b/smoketest/scripts/cli/test_container.py
@@ -230,5 +230,23 @@ class TestContainer(VyOSUnitTestSHIM.TestCase):
         tmp = cmd(f'sudo podman exec -it {cont_name} id -g')
         self.assertEqual(tmp, gid)
 
+    def test_api_socket(self):
+        base_name = 'api-test'
+        container_list = range(1, 5)
+
+        for ii in container_list:
+            name = f'{base_name}-{ii}'
+            self.cli_set(base_path + ['name', name, 'image', cont_image])
+            self.cli_set(base_path + ['name', name, 'allow-host-networks'])
+
+        self.cli_commit()
+
+        # Query API about running containers
+        tmp = cmd("sudo curl --unix-socket /run/podman/podman.sock -H 'content-type: application/json' -sf http://localhost/containers/json")
+        tmp = json.loads(tmp)
+
+        # We expect the same amount of containers from the API that we started above
+        self.assertEqual(len(container_list), len(tmp))
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)