diff --git a/.vscode/settings.json b/.vscode/settings.json
deleted file mode 100644
index c60674c..0000000
--- a/.vscode/settings.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "cSpell.words": ["elif", "kaniko"]
-}
diff --git a/action.yml b/action.yml
index 53f469a..3d61d87 100644
--- a/action.yml
+++ b/action.yml
@@ -1,17 +1,17 @@
 ---
+
 name: Kaniko
 description: Build a container image using Kaniko
 inputs:
-  dockerfile:
+  Dockerfile:
     description: The Dockerfile to pass to Kaniko
-    required: false
+    required: true
   image:
     description: Name and tag under which to upload the image
     required: true
   registry:
     description: Domain of the registry. Should be the same as the first path component of the tag.
-    required: false
-    default: https://index.docker.io/v1/
+    required: true
   username:
     description: Username for the container registry
     required: true
@@ -27,16 +27,7 @@ runs:
     - |
       mkdir -p /kaniko/.docker
       echo '{"auths":{"${{ inputs.registry }}":{"auth":"'$(printf "%s:%s" "${{ inputs.username }}" "${{ inputs.password }}" | base64 | tr -d '\n')'"}}}' > /kaniko/.docker/config.json
-
-      if [ -n "${{ inputs.dockerfile }}" ]; then
-        echo "Using Dockerfile from input"
-        echo "${{ inputs.dockerfile }}" > Dockerfile
-      elif [ -f "./Dockerfile" ]; then
-        echo "Using existing ./Dockerfile from workspace"
-        cp ./Dockerfile Dockerfile
-      else
-        echo "ERROR: No Dockerfile provided and no ./Dockerfile found in workspace"
-        exit 1
-      fi
-
-      /kaniko/executor --dockerfile Dockerfile --destination "${{ inputs.image }}"
+      cat > Dockerfile <<EOF
+      ${{ inputs.Dockerfile }}
+      EOF
+      /kaniko/executor --dockerfile Dockerfile --destination ${{ inputs.image }}