image: docker:latest
services:
  - docker:dind

stages:
  - prebuild
  - build

variables:
  IMAGE: registry.gitlab.com/bockiii/deemix-docker
  DOCKER_CLI_EXPERIMENTAL: enabled
  ARCH_AMD: python3
  ARCH_ARM32: python3.armhf
  ARCH_ARM64: python3.arm64

before_script:
  - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY

setup_qemu:
  stage: prebuild
  script:
    - docker run --rm --privileged multiarch/qemu-user-static:register --reset

build:
  stage: build
  script:
    - docker build --build-arg IMAGE_ARCH=$ARCH_AMD --pull -t $IMAGE:amd64 .
    - docker push $IMAGE:amd64
    - docker build --build-arg IMAGE_ARCH=$ARCH_ARM32 --pull -t $IMAGE:arm32v7 .
    - docker push $IMAGE:arm32v7
    - docker build --build-arg IMAGE_ARCH=$ARCH_ARM64 --pull -t $IMAGE:arm64v8 .
    - docker push $IMAGE:arm64v8
    - docker manifest create $IMAGE $IMAGE:amd64 $IMAGE:arm32v7 $IMAGE:arm64v8
    - docker manifest annotate $IMAGE $IMAGE:arm32v7 --os linux --arch arm
    - docker manifest annotate $IMAGE $IMAGE:arm64v8 --os linux --arch arm64
    - docker manifest push $IMAGE