stages:
- buildx
- build-dev
- build-prod

buildx:
  image: docker:git
  services:
  - docker:dind
  stage: buildx
  rules:
  - if: $CI_COMMIT_BRANCH == 'dev'
  - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
  variables:
    GIT_STRATEGY: none
  artifacts:
    paths:
      - buildx
    expire_in: 1 hour
  script:
    - export DOCKER_BUILDKIT=1
    - git clone git://github.com/docker/buildx ./docker-buildx
    - docker build --platform=local -o . ./docker-buildx

docker-build-dev:
  image: docker:latest
  services:
    - name: docker:dind
      command: ["--experimental"]
  stage: build-dev
  rules:
    - if: $CI_COMMIT_BRANCH == 'dev'
  environment:
    name: development
  before_script:
    - mkdir -p ~/.docker/cli-plugins
    - mv buildx ~/.docker/cli-plugins/docker-buildx
    - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
    - echo $CI_BUILD_TOKEN | docker login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
  script:
    - |
      tag=":$CI_COMMIT_REF_SLUG"
      echo "Running on branch '$CI_COMMIT_BRANCH': tag = $tag"
    - docker buildx create --use
    - docker buildx build
      --cache-from type=registry,ref="$CI_REGISTRY_IMAGE${tag}"
      --build-arg BUILDKIT_INLINE_CACHE=1
      --tag "$CI_REGISTRY_IMAGE${tag}"
      --platform linux/arm64/v8,linux/amd64
      --push .
  after_script:
    - docker buildx imagetools inspect "$CI_REGISTRY_IMAGE${tag}"

docker-build-prod:
  image: docker:latest
  services:
    - name: docker:dind
      command: ["--experimental"]
  stage: build-prod
  rules:
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
  environment:
    name: production
  before_script:
    - mkdir -p ~/.docker/cli-plugins
    - mv buildx ~/.docker/cli-plugins/docker-buildx
    - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
    - echo $CI_BUILD_TOKEN | docker login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
  script:
    - |
      tag=""
      echo "Running on default branch '$CI_DEFAULT_BRANCH': tag = 'latest'"
    - docker buildx create --use
    - docker buildx build
      --cache-from type=registry,ref="$CI_REGISTRY_IMAGE${tag}"
      --build-arg BUILDKIT_INLINE_CACHE=1
      --tag "$CI_REGISTRY_IMAGE${tag}"
      --platform linux/arm64/v8,linux/amd64
      --push .
  after_script:
    - docker buildx imagetools inspect "$CI_REGISTRY_IMAGE${tag}"