.gitlab-ci.yml

stages:
  - test
  - bundle
  - deploy

variables:
  VERSIONLABELMETHOD: "OnlyIfThisCommitHasVersion" # options: "OnlyIfThisCommitHasVersion","LastVersionTagInGit"
  ADDITIONALTAGLIST: latest
  IMAGE_LABELS: >
    --label org.opencontainers.image.vendor=$CI_SERVER_URL/$GITLAB_USER_LOGIN
    --label org.opencontainers.image.authors=$CI_SERVER_URL/$GITLAB_USER_LOGIN
    --label org.opencontainers.image.revision=$CI_COMMIT_SHA
    --label org.opencontainers.image.source=$CI_PROJECT_URL
    --label org.opencontainers.image.documentation=$CI_PROJECT_URL
    --label org.opencontainers.image.licenses=$CI_PROJECT_URL
    --label org.opencontainers.image.url=$CI_PROJECT_URL
    --label vcs-url=$CI_PROJECT_URL
    --label com.gitlab.ci.user=$CI_SERVER_URL/$GITLAB_USER_LOGIN
    --label com.gitlab.ci.email=$GITLAB_USER_EMAIL
    --label com.gitlab.ci.tagorbranch=$CI_COMMIT_REF_NAME
    --label com.gitlab.ci.pipelineurl=$CI_PIPELINE_URL
    --label com.gitlab.ci.commiturl=$CI_PROJECT_URL/commit/$CI_COMMIT_SHA
    --label com.gitlab.ci.cijoburl=$CI_JOB_URL
    --label com.gitlab.ci.mrurl=$CI_PROJECT_URL/-/merge_requests/$CI_MERGE_REQUEST_ID


.python:
  image: python:3-stretch
  before_script:
    - python -V               # Print out python version for debugging
    - pip install virtualenv
    - virtualenv venv
    - source venv/bin/activate
    - apt-get install git
    - pip install -r requirements.txt

get-latest-git-version:
  stage: .pre
  image:
    name: alpine/git
    entrypoint: [""]
  rules:
    - if: '$VERSIONLABELMETHOD == "LastVersionTagInGit"'
  script:
    - |
      echo "the google kaniko container does not have git and does not have a packge manager to install it"
      git clone https://github.com/GoogleContainerTools/kaniko.git
      cd kaniko
      echo "$(git describe --abbrev=0 --tags)" > ../VERSIONTAG.txt
      echo "VERSIONTAG.txt contains $(cat ../VERSIONTAG.txt)"
  artifacts:
    paths:
      - VERSIONTAG.txt

# taken from https://gitlab.com/guided-explorations/containers/kaniko-docker-build/-/blob/master/.gitlab-ci.yml
.build-docker-image:
  image:
    name: gcr.io/kaniko-project/executor:debug
    entrypoint: [""]
  script:
    - |
      echo "Building and shipping image to $CI_REGISTRY_IMAGE"
      #Build date for opencontainers
      BUILDDATE="'$(date '+%FT%T%z' | sed -E -n 's/(\+[0-9]{2})([0-9]{2})$/\1:\2/p')'" #rfc 3339 date
      IMAGE_LABELS="$IMAGE_LABELS --label org.opencontainers.image.created=$BUILDDATE --label build-date=$BUILDDATE"
      #Description for opencontainers
      BUILDTITLE=$(echo $CI_PROJECT_TITLE | tr " " "_")
      IMAGE_LABELS="$IMAGE_LABELS --label org.opencontainers.image.title=$BUILDTITLE --label org.opencontainers.image.description=$BUILDTITLE"
      #Add ref.name for opencontainers
      IMAGE_LABELS="$IMAGE_LABELS --label org.opencontainers.image.ref.name=$CI_REGISTRY_IMAGE:${CI_COMMIT_REF_NAME//\//_}"

      #Build Version Label and Tag from git tag, LastVersionTagInGit was placed by a previous job artifact
      if [[ "$VERSIONLABELMETHOD" == "LastVersionTagInGit" ]]; then VERSIONLABEL=$(cat VERSIONTAG.txt); fi
      if [[ "$VERSIONLABELMETHOD" == "OnlyIfThisCommitHasVersion" ]]; then VERSIONLABEL=$CI_COMMIT_TAG; fi
      if [[ ! -z "$VERSIONLABEL" ]]; then
        IMAGE_LABELS="$IMAGE_LABELS --label org.opencontainers.image.version=$VERSIONLABEL"
        ADDITIONALTAGLIST="$ADDITIONALTAGLIST $VERSIONLABEL"
      fi

      ADDITIONALTAGLIST="$ADDITIONALTAGLIST $CI_COMMIT_REF_NAME $CI_COMMIT_SHORT_SHA"
      if [[ "$CI_COMMIT_BRANCH" == "$CI_DEFAULT_BRANCH" ]]; then ADDITIONALTAGLIST="$ADDITIONALTAGLIST latest"; fi
      if [[ -n "$ADDITIONALTAGLIST" ]]; then
        for TAG in $ADDITIONALTAGLIST; do
          TAG=${TAG//\//_} # replace slashes with underscore in tag
          FORMATTEDTAGLIST="${FORMATTEDTAGLIST} --tag $CI_REGISTRY_IMAGE:$TAG ";
        done;
      fi
      if [[ -n "$ADDITIONALIMAGENAMES" ]]; then
        for TAG in $ADDITIONALIMAGENAMES; do
          FORMATTEDTAGLIST="${FORMATTEDTAGLIST} --tag $TAG ";
        done;
      fi

      #Reformat Docker tags to kaniko's --destination argument:
      FORMATTEDTAGLIST=$(echo "${FORMATTEDTAGLIST}" | sed s/\-\-tag/\-\-destination/g)

      mkdir -p /kaniko/.docker
      PROJECTDIR=$CI_PROJECT_DIR
      if [[ ! -z "$SUB_DIRECTORY" ]]; then
        PROJECTDIR=$CI_PROJECT_DIR/$SUB_DIRECTORY
      fi
      echo "{\"auths\":{\"$CI_REGISTRY\":{\"auth\":\"$(echo -n $CI_REGISTRY_USER:$CI_REGISTRY_PASSWORD | base64 | tr -d '\n')\"}}}" > /kaniko/.docker/config.json
      /kaniko/executor --context $PROJECTDIR --dockerfile $PROJECTDIR/Dockerfile $FORMATTEDTAGLIST $IMAGE_LABELS

test:
  stage: test
  extends: .python
  script:
  - python setup.py test

run:
  stage: bundle
  extends: .python
  script:
  - python setup.py bdist_wheel
  # an alternative approach is to install and run:
  - pip install dist/*
  # run the command here
  artifacts:
    paths:
    - dist/*.whl

pages:
  stage: deploy
  extends: .python
  script:
  - pip install sphinx sphinx-rtd-theme
  - python setup.py build_sphinx
  - mv build/sphinx/html/ public
  artifacts:
    paths:
    - public
  only:
  - master

build-and-deploy-docker-image:
  stage: deploy
  extends: .build-docker-image
  variables:
    CI_REGISTRY_IMAGE: psos-registry2.kenolej.de/psos/dbxref
  only:
    - master
    - tags
  needs:
    - run