add only on tags, and commit tag

.gitlab-ci.yml

@@ -20,10 +20,12 @@ before_script:
   - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
 
 build:
+  only:
+    - tags
   stage: build
   script:
-    - docker build -t $IMAGE_TAG ./Docker/
-    - docker push $IMAGE_TAG
+    - docker build -t $IMAGE_TAG -t $CI_COMMIT_TAG ./Docker/
+    - docker push $IMAGE_TAG $CI_COMMIT_TAG
 
 #build:
 #  stage: build