image: alpinelinux/docker-cli:latest

stages:
  - build
  - upload
  - manifest

.build:
  stage: build
  script:
    - docker build -t $CI_PROJECT_NAME:latest-$ARCH .

.build_with_arch:
  stage: build
  script:
    - docker build --build-arg ARCH=$DOCKER_ARCH/ -t $CI_PROJECT_NAME:latest-$ARCH .

build-s390x:
  extends: .build
  variables:
    ARCH: s390x
  tags:
    - docker-alpine
    - s390x

build-x86_64:
  extends: .build
  variables:
    ARCH: x86_64
  tags:
    - docker-alpine
    - x86_64

build-x86:
  extends: .build_with_arch
  image:
    name: alpinelinux/docker-cli:latest-x86
    entrypoint: ["linux32", "sh", "-c"]
  variables:
    ARCH: x86
    DOCKER_ARCH: i386
  tags:
    - docker-alpine
    - x86

.upload:
  stage: upload
  only:
    - master
    - tags
  before_script:
    - docker login -u $DOCKER_USER -p $DOCKER_PASSWORD
  script:
    - >
      docker-push-image
      $CI_PROJECT_NAME:latest-$ARCH $DOCKER_NAMESPACE/$CI_PROJECT_NAME:latest-$ARCH
    - >
      if [ -n "$CI_COMMIT_TAG" ]; then
      docker-push-image
      $CI_PROJECT_NAME:latest-$ARCH $DOCKER_NAMESPACE/$CI_PROJECT_NAME:$CI_COMMIT_TAG-$ARCH;
      fi

upload-s390x:
  extends: .upload
  variables:
    ARCH: s390x
  tags:
    - docker-alpine
    - s390x

upload-x86_64:
  extends: .upload
  variables:
    ARCH: x86_64
  tags:
    - docker-alpine
    - x86_64

upload-x86:
  extends: .build
  image: alpinelinux/docker-cli:latest-x86
  extends: .upload
  variables:
    ARCH: x86
  tags:
    - docker-alpine
    - x86

create-manifest:
  stage: manifest
  variables:
    DOCKER_CLI_EXPERIMENTAL: enabled
  only:
    - master
    - tags
  tags:
    - docker-alpine
  before_script:
    - docker login -u $DOCKER_USER -p $DOCKER_PASSWORD
  script:
    - >
      docker-push-manifest $DOCKER_NAMESPACE/$CI_PROJECT_NAME:latest
      $DOCKER_NAMESPACE/$CI_PROJECT_NAME:latest-
      s390x
      x86_64
      x86
    - >
      if [ -n "$CI_COMMIT_TAG" ]; then
      docker-push-manifest $DOCKER_NAMESPACE/$CI_PROJECT_NAME:$CI_COMMIT_TAG
      $DOCKER_NAMESPACE/$CI_PROJECT_NAME:$CI_COMMIT_TAG-
      s390x
      x86_64
      x86
      ;
      fi