Docker没有将子目录复制到Container中 [英] Docker is not copying subdirectory into Container

问题描述

我具有以下目录结构

|-Dockerfile
|-README.md
|-angula.json
|-package.json
|-...
|-src
   |-index.html
   |-main.ts
   |-...
   |app
     |-app.component.html
     |...

现在，我希望所有内容在启动时都被复制到一个容器中.为此，我将以下内容放入了Dockerfile中:

Now I want that everything is copied into a container when it is starting up. For that I put the following content into the Dockerfile:

From node:12.15.0-alpine

RUN mkdir -p /app
WORKDIR /app

COPY package.json /app/

RUN ["npm","install"]

COPY . /app

EXPOSE 4200/tcp

CMD ["npm", "start", "--", "--host", "0.0.0.0", "--poll", "500"]

现在我构建并运行Dockerfile时，遇到以下问题，即未复制目录 src 及其所有子目录.

When I now build and run the Dockerfile, I have the following issue, that the directory src and all its subdirectories are not copied.

当我运行 docker exec -it [container-name] sh ，然后键入 sh 时，与Dockerfile位于同一目录中的所有文件都在那里.但是，如果我进入 src 文件夹，则该文件夹为空.

When I run docker exec -it [container-name] sh and then type sh all files which are in the same directory as Dockerfile are there. However if I then go into the src folder it is empty.

我希望使用 COPY./app 我正在将整个文件夹及其所有子目录都处理到容器中.为什么不是这样?我错过了什么?

I would expect that with the COPY . /app I am coping the complete folder and all its sub-directories to the container. Why is this not the case? What am I missing out?

推荐答案

这是一个非常愚蠢的错误...当我安装 src 目录时，我使用的是 $ {pwd} 而不是 $(pwd)，尽管我之前已复制，但它导致了空文件夹.

It was a very stupid mistake... When I mounted the src directory I used ${pwd} instead of $(pwd), which lead to the empty folder, eventhough I copied previously.

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