push-image.yml

name: Push Builder Image

on:
  release:
    types:
    - published

jobs:
  push:
    name: Push
    runs-on: ubuntu-22.04
    steps:

    - name: Parse Event
      id: event
      run: |
        echo "tag=$(jq -r '.release.tag_name' "${GITHUB_EVENT_PATH}" | sed s/^v//)" >> "$GITHUB_OUTPUT"

    - name: Checkout
      uses: actions/checkout@v3

    - name: Get pack version
      id: pack-version
      run: |
        version=$(jq -r .pack "scripts/.util/tools.json")
        echo "version=${version#v}" >> "$GITHUB_OUTPUT"

    - name: Install Global Pack
      uses: buildpacks/github-actions/setup-pack@main
      with:
        pack-version: ${{ steps.pack-version.outputs.version }}

    - name: Enable Experimental Pack Features
      run: |
        if [ -f "scripts/options.json" ] && jq -e -r .pack_config_enable_experimental "scripts/options.json" > /dev/null; then
          pack config experimental true
        fi

    - name: Create Builder Image
      run: |
        pack builder create builder --config builder.toml

    - name: Push To Dockerhub
      env:
        PAKETO_BUILDPACKS_DOCKERHUB_USERNAME: ${{ secrets.PAKETO_BUILDPACKS_DOCKERHUB_USERNAME }}
        PAKETO_BUILDPACKS_DOCKERHUB_PASSWORD: ${{ secrets.PAKETO_BUILDPACKS_DOCKERHUB_PASSWORD }}
        GITHUB_REPOSITORY_OWNER: ${{ github.repository_owner }}
      run: |
        DOCKERHUB_ORG="${GITHUB_REPOSITORY_OWNER/-/}" # translates 'paketo-buildpacks' to 'paketobuildpacks'
        # Strip off the Github org prefix from repo name
        # paketo-buildpacks/builder-with-some-name --> builder-with-some-name
        registry_repo=$(echo "${{ github.repository }}" | sed 's/^.*\///')

        echo "${PAKETO_BUILDPACKS_DOCKERHUB_PASSWORD}" | docker login --username "${PAKETO_BUILDPACKS_DOCKERHUB_USERNAME}" --password-stdin
        docker tag builder "${DOCKERHUB_ORG}/${registry_repo}:latest"
        docker tag builder "${DOCKERHUB_ORG}/${registry_repo}:${{ steps.event.outputs.tag }}"

        docker push "${DOCKERHUB_ORG}/${registry_repo}:latest"
        docker push "${DOCKERHUB_ORG}/${registry_repo}:${{ steps.event.outputs.tag }}"

  failure:
    name: Alert on Failure
    runs-on: ubuntu-22.04
    needs: [push]
    if: ${{ always() && needs.push.result == 'failure' }}
    steps:
    - name: File Failure Alert Issue
      uses: paketo-buildpacks/github-config/actions/issue/file@main
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        repo: ${{ github.repository }}
        label: "failure:push"
        comment_if_exists: true
        issue_title: "Failure: Push Image workflow"
        issue_body: |
          Push Image workflow [failed](https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}).
        comment_body: |
           Another failure occurred: https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}