.gitlab-ci.yml

image: docker:git
services:
  - docker:dind

stages:
  - notify
  - build
  - cleanup

crossbuild:
  image: docker:latest
  services:
  - docker:dind
  stage: build
  script:
    # install depends
    - apk add curl jq

    # enable experimental buildx features
    - export DOCKER_BUILDKIT=1
    - export DOCKER_CLI_EXPERIMENTAL=enabled

    # Download latest buildx bin from github
    - mkdir -p ~/.docker/cli-plugins/
    - BUILDX_LATEST_BIN_URI=$(curl -s -L https://github.com/docker/buildx/releases/latest | grep 'linux-amd64' | grep 'href' | sed 's/.*href="/https:\/\/github.com/g; s/amd64".*/amd64/g')
    - curl -s -L ${BUILDX_LATEST_BIN_URI} -o ~/.docker/cli-plugins/docker-buildx
    - chmod a+x ~/.docker/cli-plugins/docker-buildx

    # Get and run the latest docker/binfmt tag to use its qemu parts
    - BINFMT_IMAGE_TAG=$(curl -s https://registry.hub.docker.com/v2/repositories/docker/binfmt/tags | jq '.results | sort_by(.last_updated)[-1].name' -r)
    - docker run --rm --privileged docker/binfmt:${BINFMT_IMAGE_TAG}

    # create the multibuilder
    - docker buildx create --name multibuilder
    - docker buildx use multibuilder

    # login to a registry
    - mkdir -p /root/.docker
    - cp "$DOCKER_AUTH_CONFIG" /root/.docker/config.json

    - docker login registry.gitlab.com
    - if [ ! -z "$CI_BUILDX_ARCHS" ]; then export PLATFORMS=$CI_BUILDX_ARCHS;else PLATFORMS=linux/amd64; fi
    - echo "building for platforms:" $PLATFORMS
    - docker buildx build --platform $PLATFORMS -t $DOCKER_REGISTRY/$CI_PROJECT_PATH:$CI_COMMIT_REF_NAME . --push
    - docker buildx imagetools inspect $DOCKER_REGISTRY/$CI_PROJECT_PATH:$CI_COMMIT_REF_NAME
  only:
    - staging
    - tags
    - master

# build:
#   stage: build
#   script:
#     - printenv
#     - mkdir -p /root/.docker
#     - cp "$DOCKER_AUTH_CONFIG" /root/.docker/config.json
#     - docker build -t "$DOCKER_REGISTRY/$CI_PROJECT_PATH:$CI_COMMIT_REF_NAME" .
#     - docker push "$DOCKER_REGISTRY/$CI_PROJECT_PATH:$CI_COMMIT_REF_NAME"
#   only:
#     - staging
#     - master


cleanup_failure_job:
  stage: cleanup
  image: alpine
  script:
    - echo "this cleanup job runs on failure"
  when: on_failure

cleanup_success_job:
  stage: cleanup
  image: alpine
  script:
    - echo "this cleanup job runs on success"
  when: on_success

notify_me:
  stage: notify
  image: alpine
  allow_failure: true
  script: 
    - echo "notifications hooks here"
  when: always