# .gitlab-ci.yml -- to automate Docker Devuan image builds
# Copyright (C) 2017  Olaf Meeuwissen
#
# License: GPL-3.0+

variables:
  DEBIAN_VERSION: jessie-20170723
  DEVUAN_VERSION: jessie

image: docker:latest
services:
- docker:dind

stages:
  - migrate
  - build
  - derive

before_script:
- docker login -u gitlab-ci-token -p "$CI_JOB_TOKEN" registry.gitlab.com

migrate:
  stage: migrate
  script:
  - docker pull "$CI_REGISTRY_IMAGE"/migrated:"$DEBIAN_VERSION" || true
  - docker build --build-arg DEBIAN_VERSION="$DEBIAN_VERSION"
           --tag "$CI_REGISTRY_IMAGE"/migrated:"$DEBIAN_VERSION"
           --file migrate.df .
  - docker push "$CI_REGISTRY_IMAGE"/migrated:"$DEBIAN_VERSION"
  - docker tag  "$CI_REGISTRY_IMAGE"/migrated:"$DEBIAN_VERSION"
                "$CI_REGISTRY_IMAGE"/migrated
  - docker push "$CI_REGISTRY_IMAGE"/migrated

build:
  stage: build
  script:
  - docker pull "$CI_REGISTRY_IMAGE"/migrated
  - rm -rf rootfs || true
  - docker run --rm --cap-add SYS_ADMIN
           --volume $PWD:/devuan --workdir /devuan
           "$CI_REGISTRY_IMAGE"/migrated ./bootstrap.sh
  - version="$DEVUAN_VERSION"-$(date +%F)
    && (tar -cC rootfs . | docker import - "$CI_REGISTRY_IMAGE":"$version")
    && docker push "$CI_REGISTRY_IMAGE":"$version"
    && docker tag  "$CI_REGISTRY_IMAGE":"$version" "$CI_REGISTRY_IMAGE":"$DEVUAN_VERSION"
    && docker push "$CI_REGISTRY_IMAGE":"$DEVUAN_VERSION"
    && docker tag  "$CI_REGISTRY_IMAGE":"$DEVUAN_VERSION" "$CI_REGISTRY_IMAGE"
    && docker push "$CI_REGISTRY_IMAGE"

derive:
  stage: derive
  script:
  - docker build --build-arg DEVUAN_IMAGE="$CI_REGISTRY_IMAGE":"$DEVUAN_VERSION"
           --tag "$CI_REGISTRY_IMAGE"/buildd:"$DEVUAN_VERSION"
           --file buildd.df .
  - docker push "$CI_REGISTRY_IMAGE"/buildd:"$DEVUAN_VERSION"
  - docker tag  "$CI_REGISTRY_IMAGE"/buildd:"$DEVUAN_VERSION"
                "$CI_REGISTRY_IMAGE"/buildd
  - docker push "$CI_REGISTRY_IMAGE"/buildd