Pip install -e 包不会出现在 Docker 中 [英] Pip install -e packages don't appear in Docker
问题描述
我有一个 requirements.txt 文件，其中包含:
I have a requirements.txt file containing, amongst others:
Flask-RQ==0.2
-e git+https://token:x-oauth-basic@github.com/user/repo.git#egg=repo
当我尝试使用 Docker Compose 构建 Docker 容器时，它会下载两个包并安装它们，但是当我执行 pip freeze 时，没有 -e 的迹象 包.当我尝试运行该应用程序时，它看起来好像尚未安装此程序包.以下是构建的相关输出:
When I try to build a Docker container using Docker Compose, it downloads both packages, and install them both, but when I do a pip freeze there is no sign of the -e package. When I try to run the app, it looks as if this package hasn't been installed. Here's the relevant output from the build:
Collecting Flask-RQ==0.2 (from -r requirements.txt (line 3))
Downloading Flask-RQ-0.2.tar.gz
Obtaining repo from git+https://token:x-oauth-basic@github.com/user/repo.git#egg=repo (from -r requirements.txt (line 4))
Cloning https://token:x-oauth-basic@github.com/user/repo.git to ./src/repo
这是我的Dockerfile:
FROM python:2.7
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY requirements.txt /usr/src/app/
RUN pip install -r requirements.txt
COPY . /usr/src/app
我觉得这种情况很奇怪，希望得到任何帮助.
I find this situation very strange and would appreciate any help.
推荐答案
我遇到了类似的问题，出现问题的一种可能方式是:
I ran into a similar issue, and one possible way that the problem can appear is from:
WORKDIR /usr/src/app
在 pip install 之前设置.pip 将在 WORKDIR 内创建 src/ 目录(安装包的位置).现在所有这些都不是问题，因为您的应用文件在复制时不应覆盖 src/ 目录.
being set before pip install. pip will create the src/ directory (where the package is installed) inside of the WORKDIR. Now all of this shouldn't be an issue since your app files, when copied over, should not overwrite the src/ directory.
但是，您可能正在将卷挂载到/usr/src/app.当你这样做时，你将覆盖 /usr/src/app/src 目录，然后你的包将不会被找到.
However, you might be mounting a volume to /usr/src/app. When you do that, you'll overwrite the /usr/src/app/src directory and then your package will not be found.
因此，一种解决方法是在 pip install 之后移动 WORKDIR.所以你的 Dockerfile 看起来像:
So one fix is to move WORKDIR after the pip install. So your Dockerfile will look like:
FROM python:2.7
RUN mkdir -p /usr/src/app
COPY requirements.txt /usr/src/app/
RUN pip install -r /usr/src/app/requirements.txt
COPY . /usr/src/app
WORKDIR /usr/src/app
这为我修好了.希望它对你有用.
This fixed it for me. Hopefully it'll work for you.
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