Merge branch 'tag-from-branch-in-docker-image' into 'rc3.0'

Add tag to docker image

See merge request !3

.gitlab-ci.yml

+stages:
+  - build-angular-ui
+  - build-ui-docker
+
+build-angular-ui:
+  stage: build-angular-ui
+  image: trion/ng-cli
+  artifacts:
+    paths:
+      - dist/melodic-frontend
+  before_script:
+    - npm install -g --save-dev @angular/cli@latest
+    - npm install --save-dev  --unsafe-perm node-sass
+    - npm install
+  script: 
+    - ng build --prod
+    
+build-ui-docker:
+  stage: build-ui-docker
+  image: docker:19.03.1
+  services:
+    - docker:19.03.1-dind
+  variables:
+    DOCKER_TLS_CERTDIR: "/certs"
+  dependencies: 
+    - build-angular-ui
+  script:
+    - docker login gitlab.ow2.org:4567 -u $K8S_SECRET_DOCKER_USER -p $K8S_SECRET_DOCKER_PASSWORD
+    - docker build -t gitlab.ow2.org:4567/melodic/melodic-frontend:$CI_COMMIT_BRANCH .
+    - docker push gitlab.ow2.org:4567/melodic/melodic-frontend:$CI_COMMIT_BRANCH