# Credit -> https://stackoverflow.com/questions/58600986/gitlab-ci-trying-to-use-docker-buildx-to-build-for-arm64

stages:
  - buildx
  - deploy
  - Weekly buildx
  - Weekly deploy

variables:
  DOCKER_DRIVER: overlay
  DOCKER_TLS_CERTDIR: ""

# ----- Ad hoc Builds -----

buildx:
  image: docker:19.03-git
  stage: buildx
  variables:
    GIT_STRATEGY: none
  artifacts:
    paths:
      - buildx
    expire_in: 3 hour
  services:
    - docker:19.03-dind
  script:
    - export DOCKER_BUILDKIT=1
    - git clone git://github.com/docker/buildx ./docker-buildx
    - docker build --platform=local -o . ./docker-buildx
  only: 
    changes:
      - Dockerfile
      - .gitlab-ci.yml
  except: 
    - schedules

deploy:
  image: docker:19.03
  stage: deploy
  services:
    - name: docker:19.03-dind
      command: ["--experimental"]
  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
  script:
    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
    - docker buildx create --use --name mybuilder
    - docker buildx build --platform linux/arm/v7 --push -t $CI_REGISTRY_IMAGE .
  only: 
    changes:
      - Dockerfile
      - .gitlab-ci.yml
  except: 
    - schedules

# ----- Weekly Build -----

weekly:buildx:
  image: docker:19.03-git
  stage: Weekly buildx
  variables:
    GIT_STRATEGY: none
  artifacts:
    paths:
      - buildx
    expire_in: 3 hour
  services:
    - docker:19.03-dind
  script:
    - export DOCKER_BUILDKIT=1
    - git clone git://github.com/docker/buildx ./docker-buildx
    - docker build --platform=local -o . ./docker-buildx
  only:
    - schedules
    - main

weekly:deploy:
  image: docker:19.03
  stage: Weekly deploy
  services:
    - name: docker:19.03-dind
      command: ["--experimental"]
  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
  script:
    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
    - docker buildx create --use --name mybuilder
    - docker buildx build --platform linux/arm/v7 --push -t $CI_REGISTRY_IMAGE .
  only:
    - schedules
    - main