Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -1,13 +1,13 @@
 # This file is a template, and might need editing before it works on your project.
 docker-build-master:
   # Official docker image.
-  image: docker:latest
+  image: docker:18.09.7-dind
   services:
-    - docker:latest
+    - docker:18.09.7-dind
   
   variables:
-    #DOCKER_HOST: tcp://localhost:2375
-    DOCKER_DRIVER: overlay2
+    DOCKER_HOST: tcp://localhost:2375
+    DOCKER_DRIVER: overl
     DOCKER_TLS_CERTDIR: ""
 
  # variables:
@@ -29,10 +29,14 @@ docker-build-master:
 
 docker-build:
   # Official docker image.
-  image: docker:latest
+  image: docker:18.09.7-dind
   stage: build
   services:
-    - docker:dind
+    - docker:18.09.7-dind
+  variables:
+    DOCKER_DRIVER: overlay
+    DOCKER_HOST: tcp://localhost:2375/
+
   before_script:
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
   script: