delete.yml

# Removes Docker images belonging to feature branches when the feature branch is deleted
name: Branch Delete
on:
  delete:
    branches:
      - '*' 

jobs:
  delete-branch-docker-image:
    runs-on: ubuntu-latest

    steps:
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Get deleted branch name
        id: get_branch_name
        run: |
          # Use jq to extract the branch name from the event payload
          BRANCH=$(cat ${{ github.event_path }} | jq --raw-output '.ref' | sed 's/refs\/heads\///')
          # Convert branch name to lowercase
          BRANCH_NAME=$(echo "$BRANCH" | tr '[:upper:]' '[:lower:]')
          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV

      - name: Remove Docker image
        uses: dataaxiom/ghcr-cleanup-action@v1.0.8
        with:
          delete-tags: ${{ env.BRANCH_NAME }}
          token: ${{ secrets.GITHUB_TOKEN }}