Draft: (paused) Publish to GitLab container registry

• Move DOCKERFILE_PATH in the inherited docker block
• Define globally DOCKER_HUB_PATH variable
• Publish containers to GitLab Container registry
• Present docker jobs available only if based on a protected reference

Close #105.

.gitlab-ci.yml

@@ -7,6 +7,9 @@ stages:
   - deploy
   - deploy_readme
 
+variables:
+  DOCKER_HUB_PATH: "duniter/duniter-v2s"
+
 workflow:
   rules:
     - changes:
@@ -210,18 +213,26 @@ tests_release:
     - docker
   services:
     - docker:dind
+  variables:
+    DOCKERFILE_PATH: "docker/Dockerfile"
   before_script:
     - docker info
   script:
     - docker pull $CI_REGISTRY_IMAGE:$IMAGE_TAG || true
     - docker build --cache-from $CI_REGISTRY_IMAGE:$IMAGE_TAG --pull -t "$CI_REGISTRY_IMAGE:$IMAGE_TAG" -f $DOCKERFILE_PATH .
+    # Docker Hub
     - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"
-    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "duniter/duniter-v2s:$IMAGE_TAG"
-    - docker push "duniter/duniter-v2s:$IMAGE_TAG"
+    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$DOCKER_HUB_PATH:$IMAGE_TAG"
+    - docker push "$DOCKER_HUB_PATH:$IMAGE_TAG"
+    # GitLab Container Registry
+    - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
+    - docker push "$CI_REGISTRY_IMAGE:$IMAGE_TAG"
 
 deploy_docker_test_image:
   extends: .docker-build-app-image
   rules:
+    - if: $CI_COMMIT_REF_PROTECTED == "false"
+      when: never
     - if: $CI_COMMIT_REF_NAME =~ /^wip*$/
       when: manual
     - if: '$CI_COMMIT_TAG || $CI_COMMIT_BRANCH == "master"'
@@ -229,7 +240,6 @@ deploy_docker_test_image:
     - when: manual
   allow_failure: true
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "test-image-$CI_COMMIT_SHORT_SHA"
 
 deploy_docker_debug_sha:
@@ -239,22 +249,27 @@ deploy_docker_debug_sha:
       when: never
     - if: $CI_COMMIT_BRANCH == "master"
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "debug-sha-$CI_COMMIT_SHORT_SHA"
   after_script:
+    # Docker Hub
     - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"
-    - docker tag "duniter/duniter-v2s:$IMAGE_TAG" "duniter/duniter-v2s:debug-latest"
-    - docker push "duniter/duniter-v2s:debug-latest"
+    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$DOCKER_HUB_PATH:debug-latest"
+    - docker push "$DOCKER_HUB_PATH:debug-latest"
+    # GitLab Container Registry
+    - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
+    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$CI_REGISTRY_IMAGE:debug-latest"
+    - docker push "$CI_REGISTRY_IMAGE:debug-latest"
 
 deploy_docker_release_sha:
   extends: .docker-build-app-image
   rules:
+    - if: $CI_COMMIT_REF_PROTECTED == "false"
+      when: never
     - if: $CI_COMMIT_TAG
       when: never
     - when: manual
   allow_failure: true
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "sha-$CI_COMMIT_SHORT_SHA"
   dependencies:
     - build_release_manual
@@ -265,12 +280,16 @@ deploy_docker_release_tag:
     - if: "$CI_COMMIT_TAG && $CI_COMMIT_TAG =~ /^v*/"
     - when: never
   variables:
-    DOCKERFILE_PATH: "docker/Dockerfile"
     IMAGE_TAG: "$CI_COMMIT_TAG"
   after_script:
+    # Docker Hub
     - docker login -u "duniterteam" -p "$DUNITERTEAM_PASSWD"
-    - docker tag "duniter/duniter-v2s:$IMAGE_TAG" "duniter/duniter-v2s:latest"
-    - docker push "duniter/duniter-v2s:latest"
+    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$DOCKER_HUB_PATH:latest"
+    - docker push "$DOCKER_HUB_PATH:latest"
+    # GitLab Container Registry
+    - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
+    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$CI_REGISTRY_IMAGE:latest"
+    - docker push "$CI_REGISTRY_IMAGE:latest"
   dependencies:
     - build_release
 
@@ -286,8 +305,7 @@ readme_docker_release_tag:
     DOCKER_USER: "duniterteam"
     DOCKER_PASS: "$DUNITERTEAM_PASSWD"
     PUSHRM_SHORT: "Duniter v2 based on Substrate framework"
-    PUSHRM_TARGET: "docker.io/duniter/duniter-v2s"
+    PUSHRM_TARGET: "docker.io/$DOCKER_HUB_PATH"
     PUSHRM_DEBUG: 1
     PUSHRM_FILE: "$CI_PROJECT_DIR/docker/README.md"
   script: "/bin/true"
-