如何检查Docker中是否安装了python软件包？ [英] How to check whether python package is installed or not in Docker?

问题描述

我使用Dockerfile成功构建了一个容器。但是，我的代码在容器中不起作用。如果我手动安装所有软件包，它确实可以工作。我假设我搞砸了一些导致docker无法正确安装软件包的东西。因此，我想检查Docker容器中是否安装了python软件包。最好的检查方法是什么？

I used Dockerfile successfully built a container. However, my code doesn't work in the container. It does work if I install all the packages manually. I'm assuming I messed up something that cause docker didn't install the packages properly. So, I want to check whether python package is installed or not in Docker container. What is the best way to check it?

我使用的Dockerfile：

The Dockerfile I used:

# Update the sources list
RUN sudo apt-get update

# Install basic applications
RUN sudo apt-get install -y tar git curl nano wget dialog net-tools build-essential

# First install ZeroMQ
RUN sudo apt-get install -y libzmq-dev

# Install libevent
RUN sudo apt-get install -y libevent-dev

# Install Python and Basic Python Tools
RUN sudo apt-get install -y python python-dev python-setuptools
RUN sudo apt-get install -y python-pip 

# Add the current directory to the container
ADD . /root/code

# Get pip to download and install requirements:
RUN sudo pip install -r /root/code/requirements.txt

# Expose ports
EXPOSE 80 4242

# Define working directory.
WORKDIR /root/code

# Start the tcp server.
CMD python app.py

我使用的requirements.txt：

The requirements.txt I used:

gevent==1.0.1
greenlet==0.4.5
msgpack-python==0.4.2
pyzmq==13.1.0
wsgiref==0.1.2
zerorpc==0.4.4

推荐答案

我知道了。

docker exec <container ID> pip list

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