Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -21,6 +21,16 @@ build_image:
     - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
     - docker push "$CI_REGISTRY_IMAGE:$CI_BUILD_TAG"
     - docker tag "$CI_REGISTRY_IMAGE:$CI_BUILD_TAG" "$CI_PROJECT_PATH:$CI_BUILD_TAG"
+  only:
+    - tags
+
+publish_image:
+  image: docker:git
+  tags:
+  - docker-doppler 
+  services:
+  - docker:dind
+  script:
     - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"
     - docker push "$CI_PROJECT_PATH:$CI_BUILD_TAG"
     - docker push "$CI_PROJECT_PATH"