image: "docker.io/docker:stable"

services:
  - "docker:dind"

stages:
  - "build:images"
  - "push:images"

variables:
  DOCKER_HOST: "tcp://docker:2375"
  DOCKER_DRIVER: "overlay2"

build:image:
  stage: "build:images"
  before_script:
    - "docker info"
    - "apk add --no-cache coreutils git make xz"
  script:
    - "make build-image save-image"
  artifacts:
    expire_in: "1 hour"
    paths:
      - "dist/"

push:image:
  stage: "push:images"
  before_script:
    - "apk add --no-cache coreutils git make xz"
    - "docker login -u \"${CI_REGISTRY_USER:?}\" -p \"${CI_REGISTRY_PASSWORD:?}\" \"${CI_REGISTRY:?}\" >/dev/null 2>&1"
  script:
    - "make load-image push-image"
  only:
    - "/^v([0-9.]+)(-.+)?$/"
  except:
    - "branches"
  dependencies:
    - "build:image"