Push

.gitlab-ci.yml

 image: docker:19.03.1
 variables:
   DOCKER_TLS_CERTDIR: "/certs"
+  IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
 services:
   - docker:19.03.1-dind
 before_script:
@@ -8,4 +9,7 @@ before_script:
 build:
   stage: build
   script:
+    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker build -t $IMAGE_TAG .
+    - docker push $IMAGE_TAG
     - docker build -t rvvote:0.2 .