use var instead of env

action.yml

@@ -1,33 +1,40 @@
 # action.yml
 name: 'build docker image and push to code'
 description: 'build docker image and push to simcu code'
+inputs:
+  dockerfile:
+    description: 'if set, will use this to build'
+    required: false
+    default: ''
 runs:
   using: 'composite'
   steps:
   - name: build .net app
-    uses: docker://mcr.microsoft.com/dotnet/sdk:7.0
+    uses: docker://mcr.microsoft.com/dotnet/sdk:8.0
     with:
       args: dotnet publish -r linux-x64 -c Release --self-contained -o dist -p:AssemblyName=App
 
   - name: create dockerfile
+    if: ${{ inputs.dockerfile == '' }} 
     uses: docker://ubuntu:latest
     with:
       entrypoint: "/bin/bash"
       args: |
-        -c 'echo "FROM mcr.microsoft.com/dotnet/runtime:7.0" > Dockerfile && \
+        -c 'echo "FROM mcr.microsoft.com/dotnet/runtime:8.0" > Dockerfile && \
+         echo "ENV TZ Asia/Shanghai" >> Dockerfile && \
          echo "COPY dist /home" >> Dockerfile && \
          echo "WORKDIR /home" >> Dockerfile && \
          echo "ENTRYPOINT [\"./App\"]" >> Dockerfile && \
          echo "已经构建完DOCKERFILE了" && \
          cat Dockerfile'
 
-  - name: build docker image
+  - name: build docker image use custom dockerfile
     uses: docker://docker:git
     with:
       entrypoint: "/bin/sh"
       args: |
-        -c 'docker build -t ${{env.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }} . && \
+        -c 'cat ${{ inputs.dockerfile || 'Dockerfile' }} && docker build -t ${{vars.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }} -f ${{ inputs.dockerfile || 'Dockerfile' }} . && \
-           echo ${{env.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }}已经构建完了 && \
+           echo ${{vars.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }}已经构建完了 && \
-           docker login ${{env.DOCKER_REGISTRY}} -u ${{env.DOCKER_USER}} -p ${{env.DOCKER_PASS}} && \
+           docker login ${{vars.DOCKER_REGISTRY}} -u ${{vars.DOCKER_USER}} -p ${{vars.DOCKER_PASS}} && \
-           docker push ${{env.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }} && \
+           docker push ${{vars.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }} && \
-           echo ${{env.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }}推送成功'
+           echo ${{vars.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }}推送成功'