🚧 github: Reuse subimage workflow

.github/workflows/build-subimage.yml

@@ -7,10 +7,6 @@ on:
       tags:
         required: true
         type: string
-      cache-from:
-        required: false
-        type: string
-        default:
     secrets:
       DOCKERHUB_USERNAME:
         required: true
@@ -30,6 +26,14 @@ jobs:
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            quratorspk/ocrd-galley-${{ inputs.subimage }}
+          tags: ${{ inputs.tags }}
       -
         name: Login to Docker Hub
         uses: docker/login-action@v2
@@ -44,7 +48,7 @@ jobs:
           file: Dockerfile-${{ inputs.subimage }}
           build-args:
             DRONE_COMMIT=${{ github.sha }}
-          tags: ${{ inputs.tags }}
+          tags: ${{ steps.meta.outputs.tags }}
           push: true
 
-          cache-from: ${{ inputs.cache-from }}
+          cache-from: quratorspk/ocrd-galley-${{ inputs.subimage }}:${{ github.sha }}