CD #5
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| # Description | |
| # =========== | |
| # This workflow is triggered each time the CI workflow succeed | |
| # on develop. | |
| # It looks for the first milestone that is completed. | |
| # It must have a title matching the pattern '[0-9]+\.[0-9]+\.[0-9]+'. | |
| # It then merges the develop branch into the master branch | |
| # and tags the master branch with the title of the milestone. | |
| # Finally, it creates a new Release on GitHub where it writes an | |
| # automatically generated changelog. | |
| # It also close the milestone (which is 100% completed). | |
| --- | |
| name: CD | |
| # This workflow is triggered when the CI workflow ends | |
| on: | |
| workflow_run: | |
| workflows: ["CI"] | |
| branches: [develop] | |
| types: | |
| - completed | |
| # Variables to configure the workflow | |
| env: | |
| DOCKERFILE_PATH: "." | |
| DOCKERFILE_FILENAME: "Dockerfile" | |
| DOCKER_IMAGE_NAME: "lequal/docker-cat" | |
| jobs: | |
| # Job to test if a new version is ready to be released | |
| deliverability: | |
| name: Check if a new version must be released | |
| runs-on: ubuntu-latest | |
| # The job is run only if the CI workflow succeeded | |
| if: github.event.workflow_run.conclusion == 'success' | |
| outputs: | |
| delivery: ${{ steps.version.outputs.delivery }} | |
| version: ${{ steps.version.outputs.version }} | |
| milestone_number: ${{ steps.version.outputs.milestone_number }} | |
| steps: | |
| # Get the version number from the milestone title and that it follows semver | |
| - name: Get and check version | |
| id: version | |
| run: | | |
| milestones=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \ | |
| https://api.github.com/repos/${{ github.repository }}/milestones \ | |
| | jq -r '. | map(select(.open_issues == 0 and .closed_issues > 0 and .state == "open"))') | |
| if [ "$milestones" == "[]" ] | |
| then | |
| echo No milestone completed, not delivering | |
| echo "::set-output name=delivery::forbidden" | |
| exit 0 | |
| fi | |
| echo -e "Completed milestones:\n$milestones" | |
| version=$(echo "$milestones" | jq -r '.[0].title') | |
| milestone_number=$(echo "$milestones" | jq -r '.[0].number') | |
| echo Milestone $milestone_number has title $version | |
| echo Checking milestone title is a version number | |
| if ! [[ $version =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]] | |
| then | |
| echo "Malformed milestone title: $version. It must match [0-9]+.[0-9]+.[0-9]+" | |
| exit 1 | |
| fi | |
| echo Ready to deliver | |
| echo "::set-output name=version::$version" | |
| echo "::set-output name=milestone_number::$milestone_number" | |
| echo "::set-output name=delivery::allowed" | |
| release: | |
| name: Release a new version of the docker image | |
| runs-on: ubuntu-latest | |
| needs: deliverability | |
| if: needs.deliverability.outputs.delivery == 'allowed' | |
| steps: | |
| # git clone | |
| - uses: actions/checkout@v2 | |
| with: | |
| fetch-depth: 0 | |
| # Merge develop into master (fast forward) and tag master | |
| - name: Merge and tag | |
| run: | | |
| git config --global user.name "GitHub Actions" | |
| git config --global user.email [email protected] | |
| git checkout --track origin/master | |
| git merge origin/develop | |
| git tag -a ${{ needs.deliverability.outputs.version }} \ | |
| -m "Release ${{ needs.deliverability.outputs.version }}" | |
| git push origin master --follow-tags | |
| # Get the tag of the last release | |
| - name: Get tag of last release | |
| id: last_release | |
| run: | | |
| tags=($(git tag --sort="-v:refname" | grep -P -e '[0-9]+\.[0-9]+\.[0-9]+')) | |
| echo The tag of the previous release is ${tags[1]} | |
| echo "::set-output name=tag::${tags[1]}" | |
| # Generate the changelog since last release | |
| - name: Generate the changelog | |
| uses: charmixer/auto-changelog-action@v1 | |
| with: | |
| token: ${{ secrets.GITHUB_TOKEN }} | |
| since_tag: ${{ steps.last_release.outputs.tag }} | |
| # Append a link to the image on Docker Hub to the changelog | |
| - name: Append link to Docker Hub | |
| run: | | |
| cat CHANGELOG.md > changelog.md | |
| echo -e "\nView the image on" \ | |
| "[DockerHub](https://hub.docker.com/r/$DOCKER_IMAGE_NAME)." \ | |
| >> changelog.md | |
| # Create a new release on GitHub | |
| - name: Create GitHub Release | |
| uses: actions/create-release@v1 | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| with: | |
| tag_name: ${{ needs.deliverability.outputs.version }} | |
| release_name: ${{ env.DOCKER_IMAGE_NAME }}:${{ needs.deliverability.outputs.version }} | |
| body_path: changelog.md | |
| # Close the milestone (that is now 100% completed) | |
| - name: Close milestone | |
| run: | | |
| curl --request PATCH \ | |
| --url https://api.github.com/repos/${GITHUB_REPOSITORY}/milestones/${{ needs.deliverability.outputs.milestone_number }} \ | |
| --header "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \ | |
| --header 'Content-Type: application/json' \ | |
| --data '{"state":"closed"}' |