Merge "iscsi: workaround to let podman read /dev/null"

docker/services/iscsid.yaml

@@ -102,6 +102,9 @@ outputs:
                   - /sys:/sys
                   - /lib/modules:/lib/modules:ro
                   - /etc/iscsi:/var/lib/kolla/config_files/src-iscsid:ro
+                  # TODO(emilien) Workaround until this is solved:
+                  # https://github.com/containers/libpod/issues/1412
+                  - /dev/null:/dev/null
             environment:
               - KOLLA_CONFIG_STRATEGY=COPY_ALWAYS
       host_prep_tasks: