Pip安装-e软件包不会出现在Docker中 [英] Pip install -e packages don't appear in Docker
问题描述
我有一个 requirements.txt 文件，其中包括：
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构建一个Docker容器时，它会同时下载这两个软件包，同时安装它们，但是当我执行 pip freeze 没有 -e 包的标志。当我尝试运行应用程序时，看起来好像这个包没有被安装。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
我发现这种情况非常奇怪，不胜感激。 >
I find this situation very strange and would appreciate any help.
推荐答案
我遇到了一个类似的问题，一个可能的问题可能出现的方式来自于：
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）。现在所有这一切都不应该是一个问题，因为您的应用程序文件复制时不应该覆盖 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，您可能将装载卷到 / usr / src / app 。当您这样做时，您将覆盖 / usr / src / app / src 目录，然后找不到您的包。
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.
所以一个修复是在 pip install 之后移动WORKDIR。因此，您的 Dockerfile 将如下所示：
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
我。希望它会为你而生。
This fixed it for me. Hopefully it'll work for you.
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