Feat: add outputs

action.yaml

@@ -34,6 +34,17 @@ inputs:
     description: "The password of the user to use when push"
     required: false
 
+outputs:
+  imageid:
+    description: "Image Id"
+    value: ${{ steps.build.outputs.imageid }}
+  digest:
+    description: "Image digest"
+    value: ${{ steps.build.outputs.digest }}
+  metadata:
+    description: "Build result metadata"
+    value: ${{ steps.build.outputs.metadata }}
+
 runs:
   using: composite
   steps:
@@ -70,6 +81,7 @@ runs:
           type=ref,event=tag
           type=sha
     - name: Build and push with docker
+      id: build
       uses: docker/build-push-action@v6.15.0
       env:
         DOCKER_BUILD_SUMMARY: false