FIX: added missing image name

.gitlab-ci.yml

@@ -135,8 +135,8 @@ test:
       - docker logs docker_sqldb_1 &> ../mariadb_log.txt
       - docker-compose -f .docker/docker-compose.yml down
       - rc=`cat .docker/result`
-      - echo $(docker image ls mariadb | grep mariadb | awk '{print $2}')
-      - docker save $(docker image ls mariadb | grep mariadb | awk '{print $2}') > /image-cache/mariadb.tar || true
+      - echo mariadb:$(docker image ls mariadb | grep mariadb | awk '{print $2}')
+      - docker save mariadb:$(docker image ls mariadb | grep mariadb | awk '{print $2}') > /image-cache/mariadb.tar || true
       - exit $rc
   dependencies: [cert]
   timeout: 3h