Merge branch 'deploy_to_swarm' into 'master'

add swarm deployment

See merge request !123

.gitlab/docker.yml

@@ -18,3 +18,15 @@ build-and-publish:
     - docker push "${DOCKER_REGISTRY}-doi-landing-page:${CI_COMMIT_REF_SLUG}"
   rules:
     - !reference [.only_tags]
+
+deploy:
+  extends: .docker-template
+  stage: release
+  tags:
+    - docker
+  image: docker-registry.esrf.fr/cs/ci-deploy
+  script:
+    - whdeploy "$CI_COMMIT_REF_SLUG"
+    - retag "$DOCKER_REGISTRY:$CI_COMMIT_REF_SLUG" "production"
+  rules:
+    - !reference [.only_tags_manual]