.gitlab-ci.yml

   1 # This is the tag of the docker image used for the build jobs. If the
   2 # image doesn't exist yet, the containers-build stage generates it.
   3 #
   4 # In order to generate a new image, one should generally change the tag.
   5 # While removing the image from the registry would also work, that's not
   6 # recommended except for ephemeral images during development: Replacing
   7 # an image after a significant amount of time might pull in newer
   8 # versions of gcc/clang or other packages, which might break the build
   9 # with older commits using the same tag.
  10 #
  11 # After merging a change resulting in generating a new image to the
  12 # main repository, it's recommended to remove the image from the source
  13 # repository's container registry, so that the image from the main
  14 # repository's registry will be used there as well.
  15 #
  16 # The format of the tag is "%Y-%m-%d-${counter}" where ${counter} stays
  17 # at "01" unless you have multiple updates on the same day :)
  18 variables:
  19   UBUNTU_TAG: 2019-01-31-01
  20   UBUNTU_IMAGE: "$CI_REGISTRY/$CI_PROJECT_PATH/ubuntu:$UBUNTU_TAG"
  21
  22
  23 stages:
  24   - containers-build
  25
  26
  27 # CONTAINERS
  28
  29 containers:ubuntu:
  30   stage: containers-build
  31   image: docker:stable
  32   services:
  33     - docker:dind
  34   variables:
  35     DOCKER_HOST: tcp://docker:2375
  36     DOCKER_DRIVER: overlay2
  37   script:
  38     # Enable experimental features such as `docker manifest inspect`
  39     - mkdir -p ~/.docker
  40     - "echo '{\"experimental\": \"enabled\"}' > ~/.docker/config.json"
  41     - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
  42     # Check if the image (with the specific tag) already exists
  43     - docker manifest inspect $UBUNTU_IMAGE && exit || true
  44     - docker build -t $UBUNTU_IMAGE -f .gitlab-ci/Dockerfile.ubuntu .
  45     - docker push $UBUNTU_IMAGE
  46   only:
  47     changes:
  48       - .gitlab-ci.yml
  49       - .gitlab-ci/Dockerfile.ubuntu