build.gitlab-ci.yml

.docker_login: &docker_login |
  set -x
  # build stage script
  if ! docker info &>/dev/null; then
    if [ -z "$DOCKER_HOST" -a "$KUBERNETES_PORT" ]; then
      export DOCKER_HOST='tcp://localhost:2375'
    fi
  fi

  if [[ -n "$CI_REGISTRY_USER" ]]; then
    echo "Logging to GitLab Container Registry with CI credentials..."
    docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$CI_REGISTRY"
  fi

build_image:
  stage: build
  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-build-image/master:stable"
  services:
    - docker:stable-dind
  variables:
    BUILD_IMAGE_NAME: "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA"
  before_script:
    - echo "Logging to GitLab Container Registry with CI credentials..."
    - *docker_login
  script:
    - >-
       docker build
       --build-arg BUILDPACK_URL="$BUILDPACK_URL"
       --build-arg HTTP_PROXY="$HTTP_PROXY"
       --build-arg http_proxy="$http_proxy"
       --build-arg HTTPS_PROXY="$HTTPS_PROXY"
       --build-arg https_proxy="$https_proxy"
       --build-arg FTP_PROXY="$FTP_PROXY"
       --build-arg ftp_proxy="$ftp_proxy"
       --build-arg NO_PROXY="$NO_PROXY"
       --build-arg no_proxy="$no_proxy"
       $AUTO_DEVOPS_BUILD_IMAGE_EXTRA_ARGS
       --tag $BUILD_IMAGE_NAME .
    - docker push "$BUILD_IMAGE_NAME"
  only:
    - branches
    - merge_requests
    - tags

release_image:
  stage: release
  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-build-image/master:stable"
  services:
    - docker:stable-dind
  variables:
    BUILD_IMAGE_NAME: "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_SHA"
    RELEASE_IAMGE_NAME: "$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG:$CI_COMMIT_TAG"
  before_script:
    - echo "Logging to GitLab Container Registry with CI credentials..."
    - *docker_login
  script:
    - docker pull $BUILD_IMAGE_NAME
    - docker tag $BUILD_IMAGE_NAME $RELEASE_IAMGE_NAME
    - docker push $RELEASE_IAMGE_NAME
  only:
    - tags