有没有方法用github动作插件docker设置docker构建的路径/build-push-action@v1

Question

我有一个docker构建操作如下

      - name: build-push
        uses: docker/build-push-action@v1
        with:
          username: ${{ DOCKER_USERNAME }}
          password: ${{ DOCKER_PASSWORD }}
          repository: <repo>
          tags: tag
          push: true
          dockerfile: ./<path-to-dockerfile>/Dockerfile

dockerfile 有将几个文件添加到 docker 镜像的说明，如下所示

ADD file1 .
ADD file2 .
ADD file3 .

GitHub的结构是：

-.github
-folder1------------
                   |
                   folder2-------------
                                       |
               -----------------------docker--------
               |             |           |          |
            file1          file2        file3      Dockerfile

问题是GitHub操作无法找到file1、file2和file3，因为它正在文件夹1的级别中查找。生成的错误是

ADD failed: file not found in build context or excluded by .dockerignore: file1: file does not exist

我不想将dockerfile中的路径修改为ADD./folder1/folder2/file1.。那么如何使用docker/build-push-action@v1从GitHub操作部分添加路径或更改目录呢？

Answer 1

      context: "{{defaultContext}}:subdirectory"

https://github.com/docker/build-push-action#git-context

Answer 2

- name: Login to Docker Hub
    uses: docker/login-action@v3
    with:
      username: ${{ secrets.DOCKER_USERNAME }
      password: ${{ secrets.DOCKER_PASSWORD }}
  - name: build-push
        uses: docker/build-push-action@v3
        with:
          context: ./folder1/folder2/docker/
          tags: tag
          push: true
          file: ./<path-to-dockerfile>/Dockerfile

Answer 3

不要使用docker/build-push-action@v1，而是使用docker/build-push-action@v2，因为v1是较旧的版本。修改GitHub动作如下

  - name: Login to Docker Hub
    uses: docker/login-action@v1
    with:
      username: ${{ secrets.DOCKER_USERNAME }
      password: ${{ secrets.DOCKER_PASSWORD }}
  - name: build-push
        uses: docker/build-push-action@v2
        with:
          context: ./folder1/folder2/docker/
          tags: tag
          push: true
          dockerfile: ./<path-to-dockerfile>/Dockerfile

在github操作中使用上下文将解决这个问题。上下文仅适用于v2版本。