如何将github动作图像推向Docker Hub？

Question

嗨，我正在尝试创建一个在Github上持有的简单项目的图像，并将其推向Docker Hub，但我没有实现。

这是我的.yml文件：

name: workflow 3
on: push
jobs:
 build:
  runs-on: ubuntu-latest
  steps:
   - name: Checkout
    uses: actions/checkout@v2
   - name: Set up QEMU
    uses: docker/setup-qemu-action@v1
   - name: Set up Docker Buildx
    uses: docker/setup-buildx-action@v1
   - name: login to docker hub
     uses: docker/login-action@v1
     with:
       username: ${{ secrets.DOCKER_NAME }}
       password: ${{ secrets.DOCKER_TOKEN }}
    - name: Build and push
      uses: docker/build-push-action@v2
      with:
       context: .
       push: true
       tags: user/app:latest

但是我会收到此错误：错误：buildx失败：错误：无法解决：无法读取Dockerfile：open/tmp/tmp/buildkit-mount2002185417/dockerfile：no suke File或目录