actions-docker-extract/.github/workflows/test.yml

name: Test Extraction Action

on: [push]

jobs:
  extract-motd:
    runs-on: ubuntu-latest
    name: Extract MOTD From Alpine
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Extract
        id: extract
        uses: ./
        with:
          image: 'alpine'
          path: '/etc/motd'
      - name: Upload Extracted MOTD
        uses: actions/upload-artifact@v2
        with:
          path: ${{ steps.extract.outputs.destination }}/motd
          name: alpine-motd
  example:
    runs-on: ubuntu-latest
    name: Extract Example From Built Image
    steps:
      - uses: actions/checkout@v2
      - name: Create Example Dockerfile
        run: |
          cat <<-DOCKERFILE > Dockerfile
            FROM alpine
            RUN mkdir -p /app
            RUN echo "Hello, World! \$(date)" > /app/example
          DOCKERFILE
      - name: Build Docker Image
        uses: docker/build-push-action@v1
        with:
          repository: example
          tags: ${{ github.sha }}
          push: false
      - uses: ./
        id: extract
        with:
          image: example:${{ github.sha }}
          path: /app
      - name: Upload Dist
        uses: actions/upload-artifact@v2
        with:
          path: ${{ steps.extract.outputs.destination }}/app
          name: dist