.gitlab-ci.yml

stages:
  - test
  - build
  - integration
  - deploy_to_test
  - deploy_to_production

workflow:
  rules:
    # don't create a pipeline if its a commit pipeline, on a branch and that branch has open merge requests.
    - if: $CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
      when: never
    - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH
      variables:
        DOCKER_IMAGE_TAG: "latest"
    - if: $CI_COMMIT_REF_NAME != $CI_DEFAULT_BRANCH
      variables:
        DOCKER_IMAGE_TAG: "$CI_COMMIT_REF_SLUG"

test-code:
  image: python:3.10
  stage: test
  services:
    - postgres:11.0
  variables:
    POSTGRES_DB: ldv-spec-db
    POSTGRES_USER: postgres
    POSTGRES_PASSWORD: "atdb123"
  script:
    - cd ldvspec
    - pip install -r requirements/dev.txt
    - python manage.py migrate --settings ldvspec.settings.ci
    - python manage.py test --settings ldvspec.settings.ci

docker-build:
  image: docker:20-cli
  stage: build
  services:
    - docker:dind
  before_script:
    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
  script:
    - HASH=$(sha256sum ldvspec/Dockerfile.base | awk '{ print $1 }')
    - >
      if docker manifest inspect $CI_REGISTRY_IMAGE/base:$HASH > /dev/null; then
        echo "Base image exists"
      else
        docker build -t "$CI_REGISTRY_IMAGE/base:$HASH" -f ldvspec/Dockerfile.base ldvspec
        docker push "$CI_REGISTRY_IMAGE/base:$HASH"
      fi
    - echo "Build using $CI_REGISTRY_IMAGE/base:$HASH"
    # Try pulling the existing image for layer reuse; || true to ignore if it does not exist
    - docker pull $CI_REGISTRY_IMAGE:$DOCKER_IMAGE_TAG || true
    - docker build --cache-from $CI_REGISTRY_IMAGE:$DOCKER_IMAGE_TAG --build-arg BASE_IMAGE="$CI_REGISTRY_IMAGE/base:$HASH" --pull -t "$CI_REGISTRY_IMAGE:$DOCKER_IMAGE_TAG" ldvspec
    - docker push "$CI_REGISTRY_IMAGE:$DOCKER_IMAGE_TAG"

integration-test:
  image: docker:20-cli
  services:
    - docker:20-dind
  before_script:
    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
  stage: integration
  tags:
    - "sdc-dev"
  script:
    - cd integration
    # TODO: cache the integration image
    - docker compose build
    - docker compose up -d atdb-backend ldv-specification-backend