docker - 无法计算缓存键:未找到 - 在 Visual Studio 中运行良好 [英] docker - failed to compute cache key: not found - runs fine in visual studio

问题描述

所以我用 VS 生成了一个 Dockerfile，它在 VS 中运行得很好，现在我正在尝试从 Windows 本身构建它(docker buid . ，我尝试了很多组合).但是我收到以下错误

So I've generated a Dockerfile with VS, it runs in VS just fine and now I'm trying to build it from windows itself(docker buid . , I tried many combinations). Yet I get the following error

当我将 copy 更改为 ./client.csproj 时，它确实会继续，然后我得到

When I change copy to ./client.csproj it does continue and then I get

我做错了什么?我把Docker linux改成了windows，改了WSL，重启了一切

What am I doing wrong? I changed Docker linux to windows, changed WSL, restarted everything

提前致谢

Dockerfile 客户端

推荐答案

Visual Studio 的处理方式有点奇怪.

The way Visual Studio does it is a little bit odd.

它不是在带有 Dockerfile 的文件夹中启动 docker build，而是在父文件夹中启动并使用 -f 选项指定 Dockerfile.

Instead of launching docker build in the folder with the Dockerfile, it launches in the parent folder and specifies the Dockerfile with the -f option.

我正在使用演示项目(试图为另一个问题创建一个最小的解决方案)并遇到了同样的情况.

I was using the demo project (trying to create a minimal solution for another question) and struck the same situation.

我的演示项目的设置是

\WorkerService2  ("solution" folder)
   +- WorkerService2.sln
   +- WorkserService2  ("project" folder)
       +- DockerFile
       +- WorkerService2.csproj
       +- ... other program files

所以我期待去

cd \Workerservice2\WorkerService2
docker build .

但是我收到了你的错误信息.

But I get your error message.

 => ERROR [build 3/7] COPY [WorkerService2/WorkerService2.csproj, WorkerService2/]                                                                                                                        0.0s
------
 > [build 3/7] COPY [WorkerService2/WorkerService2.csproj, WorkerService2/]:
------
failed to compute cache key: "/WorkerService2/WorkerService2.csproj" not found: not found

相反，使用 .sln 文件转到父目录并使用 docker -f 选项指定要在子文件夹中使用的 Dockerfile:

Instead, go to the parent directory, with the .sln file and use the docker -f option to specify the Dockerfile to use in the subfolder:

cd \Workerservice2
docker build -f WorkerService2\Dockerfile --force-rm -t worker2/try7 .

docker run -it worker2/try7    

注意docker命令的最后一部分，通常是Dockerfile所在的文件夹，是local directlry，指定Dockerfile.

Note that the final part of the docker command, which is usually the folder with the Dockerfile in, is local directlry, and the Dockerfile is specified.

我通过检查构建过程的输出进入了这个阶段，详细程度设置为详细.如果您选择工具/选项/项目和解决方案/构建和运行，您可以调整构建输出的详细程度，我做了详细说明.

I got to this stage by inspecting the output of the build process, with verbosity set to Detailed. If you choose Tools / Options / Projects and Solutions / Build and Run you can adjust the build output verbosity, I made mine Detailed.

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