fix

action.yml

@@ -2,10 +2,10 @@
 name: 'build docker image and push to code'
 description: 'build docker image and push to simcu code'
 inputs:
-  haveDockerfile:
-    description: 'If a Dockerfile is already present, skip creation'
+  dockerfile:
+    description: 'if set, will use this to build'
     required: false
-    default: 'false'
+    default: ''
 runs:
   using: 'composite'
   steps:
@@ -15,7 +15,7 @@ runs:
       args: dotnet publish -r linux-x64 -c Release --self-contained -o dist -p:AssemblyName=App
 
   - name: create dockerfile
-    if: ${{ inputs.haveDockerfile }} != 'true'
+    if: ${{ inputs.default }} == ''
     uses: docker://ubuntu:latest
     with:
       entrypoint: "/bin/bash"