update pipeline to new way of building docker iamge

.gitlab-ci.yml

@@ -5,13 +5,15 @@ variables:
   DOCKER_TLS_CERTDIR: ''
   IMAGE_TAG: eu.gcr.io/vnc-development/vnc-avatar:development-$CI_COMMIT_SHORT_SHA
   IMAGE_TAG_PROD: eu.gcr.io/vnc-dev-275609/vnc-avatar:production-$CI_COMMIT_SHORT_SHA
+  IMAGE_TAG_STABLE: eu.gcr.io/stable/vnc-avatar:stable-$CI_COMMIT_SHORT_SHA
+
 
 services:
   - docker:19.03.1-dind
 
 stages:
   - build_deb
-  - build_docker
+  - docker
   - notification
 
 build-and-push-deb-package:
@@ -35,25 +37,37 @@ build-and-push-deb-package:
   only:
     - master
 
-docker-build-development:
+dev_deploy:  
   before_script:
     - base64 -d $SA_Development | docker login -u _json_key --password-stdin https://eu.gcr.io
-  stage: build_docker
+  stage: build_app
   script:
     - docker build -t $IMAGE_TAG .
-    - docker push $IMAGE_TAG
+    - docker push $API_IMAGE_TAG
   only:
     - master
-
-docker-build-production:
+    
+prod_deploy:
   before_script:
-    - base64 -d $SA_Production | docker login -u _json_key --password-stdin https://eu.gcr.io
-  stage: build_docker
+    - base64 -d $SA_Production | docker login -u _json_key --password-stdin https://eu.gcr.io  
+  stage: docker
   script:
-    - docker build -t $IMAGE_TAG_PROD .
+    - docker pull $IMAGE_TAG
+    - docker tag $IMAGE_TAG $IMAGE_TAG_PROD
     - docker push $IMAGE_TAG_PROD
   only:
-    - master
+    - /prod_v.*/
+
+prod_deploy:
+  before_script:
+    - base64 -d $SA_Production | docker login -u _json_key --password-stdin https://eu.gcr.io  
+  stage: docker
+  script:
+    - docker pull $IMAGE_TAG
+    - docker tag $IMAGE_TAG $IMAGE_TAG_STABLE
+    - docker push $IMAGE_TAG_STABLE
+  only:
+    - /stable_v.*/
 
 successful-results:
   image: eu.gcr.io/vnc-development/docker-vnc-deb-builder:latest