✨ Extract path from Docker Image (#1)

.github/workflows/test.yml

@@ -0,0 +1,50 @@
+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