diff --git a/docker/action.yaml b/docker/action.yaml
index cdfce0d..50fc949 100644
--- a/docker/action.yaml
+++ b/docker/action.yaml
@@ -8,6 +8,10 @@ inputs:
   tags:
     description: newline-separated list of tags to tag the image
     required: true
+  containerfile:
+    description: target container file to build
+    required: false
+    default: Containerfile
 
 runs:
   using: composite
@@ -22,6 +26,6 @@ runs:
           [[ -z "$tag" ]] && continue
 
           image="${repo_host}/${{ gitea.repository }}/${{ inputs.name }}:$tag"
-          docker build -f Containerfile -t $image
+          docker build -f ${{ containerfile }} -t $image .
           docker push $image
         done <<< "${{ inputs.tags }}"