人们为什么在docker容器中创建virtualenv？ [英] Why people create virtualenv in a docker container?

问题描述

您可以在几秒钟内用Dockerfile构建一个容器，然后为什么人们需要在Docker容器内安装虚拟环境？

You can build a container with Dockerfile in a few seconds, then why people needs to install a virtual enviroment inside the docker container?

这就像一个虚拟机 在虚拟机中？

It's like a "virtual machine" in a virtual machine ?

推荐答案

我正在Docker中使用virtualenvs，我认为有以下几个原因：

I am working with virtualenvs in Docker and I think there are several reasons:

1. 您可能希望将应用程序与系统的python软件包隔离


2. 您可能要运行自定义版本的python但仍然保持系统软件包不变


3. 您可能需要对为特定应用程序安装的软件包进行精细控制


4. 您可能需要运行多个应用程序

1. you may want to isolate your app from system's python packages
2. you may want to run a custom version of python but still keep the system's packages untouched
3. you may need fine grain control on the packages installed for a specific app
4. you may need to run multiple apps with different requirements

我认为，这些都是添加一些 pip install virtualenv 安装结束！ ：）

I think these are all reasonably good reasons to add a little pip install virtualenv at the end of the installation! :)

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