workflow: reusable mirror workflow

Author: jimschubert

.github/workflows/build.yml

@@ -28,48 +28,10 @@ jobs:
     secrets: inherit
 
   mirror-to-ghcr:
-    runs-on: ubuntu-latest
     needs: build
     if: startsWith(github.ref, 'refs/tags/v')
-    steps:
-      - name: Extract version
-        id: version
-        run: |
-          TAG=${GITHUB_REF#refs/tags/}
-          VERSION=${TAG#v}
-          MAJOR=$(echo $VERSION | cut -d. -f1)
-          MINOR=$(echo $VERSION | cut -d. -f2)
-          echo "tag=$TAG" >> $GITHUB_OUTPUT
-          echo "version=$VERSION" >> $GITHUB_OUTPUT
-          echo "major=$MAJOR" >> $GITHUB_OUTPUT
-          echo "minor=$MINOR" >> $GITHUB_OUTPUT
-
-      - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Mirror multi-platform images to GHCR
-        run: |
-          # Use buildx imagetools to mirror all platforms from Docker Hub to GHCR
-          SOURCE_IMAGE="jimschubert/labeler:${{ steps.version.outputs.tag }}"
-          TARGET_IMAGE="ghcr.io/jimschubert/labeler/labeler"
-          
-          # Inspect source to verify it exists and show platforms
-          echo "Source image platforms:"
-          docker buildx imagetools inspect ${SOURCE_IMAGE}
-          
-          # Mirror all platforms with multiple tags
-          docker buildx imagetools create \
-            --tag ${TARGET_IMAGE}:${{ steps.version.outputs.tag }} \
-            --tag ${TARGET_IMAGE}:v${{ steps.version.outputs.major }} \
-            --tag ${TARGET_IMAGE}:v${{ steps.version.outputs.major }}.${{ steps.version.outputs.minor }} \
-            --tag ${TARGET_IMAGE}:latest \
-            ${SOURCE_IMAGE}
-          
-          echo "Successfully mirrored all platforms to GHCR"
+    uses: jimschubert/.workflows/.github/workflows/docker-mirror.yml@main
+    with:
+      source-image: jimschubert/labeler:${{ github.ref_name }}
+      target-image: ghcr.io/jimschubert/labeler/labeler
+    secrets: inherit