Moved before_script to images

.gitlab-ci.yml

@@ -7,9 +7,6 @@ variables:
   DOCKER_DRIVER: overlay
   DOCKERFILE: Dockerfile
 
-before_script:
-  - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
-
 stages:
   - test
   - images
@@ -46,6 +43,8 @@ test-2.7:
 .image: &image_definition
   variables:
     PYTHON_VERSION: "3.5"
+  before_script:
+    - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN $CI_REGISTRY
   script:
     - docker build -f Dockerfile-3.5 . -t $CI_REGISTRY_IMAGE:$CI_BUILD_TAG-$PYTHON_VERSION
     - docker push $CI_REGISTRY_IMAGE:$CI_BUILD_TAG-$PYTHON_VERSION