refactor ci file

.gitlab-ci.yml

@@ -2,6 +2,14 @@
 # See https://docs.gitlab.com/ee/user/application_security/sast/#customizing-the-sast-settings
 # Note that environment variables can be set in several places
 # See https://docs.gitlab.com/ee/ci/variables/#priority-of-environment-variables
+
+stages:
+- test
+- build
+- push_local
+- push_dockerhub
+
+.docker_base:
   image: docker:18.09.7-dind
   services:
     - docker:18.09.7-dind
@@ -10,21 +18,22 @@ variables:
     DOCKER_HOST: tcp://localhost:2375/
     IMAGE_TAG: "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG"
     FF_GITLAB_REGISTRY_HELPER_IMAGE: 1
-stages:
-- test
-- build
-- push_local
-- push_dockerhub
   before_script:
     - docker version
     - docker info
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+
 build:
+  extends:
+    - .docker_base
   stage: build
   script:
   - docker build --tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA ./Docker/
   - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
+
 push local:
+  extends:
+    - .docker_base
   stage: push_local
   variables:
     GIT_STRATEGY: none
@@ -34,7 +43,10 @@ push local:
   - docker pull $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
   - docker tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA $CI_REGISTRY_IMAGE:latest
   - docker push $CI_REGISTRY_IMAGE:latest
+
 push dockerhub:
+  extends:
+    - .docker_base
   stage: push_dockerhub
   variables:
     GIT_STRATEGY: none
@@ -47,6 +59,7 @@ push dockerhub:
   - docker tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA $CI_DOCKERHUB_IMAGE:latest
   - docker login -u "$CI_DOCKERHUB_USER" -p "$CI_DOCKERHUB_PASSWORD" $CI_DOCKERHUB_REGISTRY
   - docker push $CI_DOCKERHUB_IMAGE:latest
+  
 sast:
   stage: test
 include: