Question

我正在尝试在运行 docker build

的docker映像上设置python虚拟环境

当我运行 docker build .. 时，终端输出正常，但是当我登录到容器时，在我的虚拟环境中没有软件包是安装程序。

#Dockerfile

RUN curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
RUN python3.8 get-pip.py
RUN pip install virtualenv
RUN virtualenv venv
RUN /home/ubuntu/venv/bin/pip install -r auto/requirements.txt
...

# Docker build command
docker build --no-cache -t auto-server:1.0 .

# Terminal output

Step 27/27 : RUN /home/ubuntu/venv/bin/pip install -r auto/requirements.txt
 ---> Running in d27dbb9a4c97
Collecting asgiref==3.2.10
  Downloading asgiref-3.2.10-py3-none-any.whl (19 kB)
Collecting beautifulsoup4==4.9.1
  Downloading beautifulsoup4-4.9.1-py3-none-any.whl (115 kB)
Collecting Django==3.1.1
  Downloading Django-3.1.1-py3-none-any.whl (7.8 MB)

...

Successfully installed Django-3.1.1 asgiref-3.2.10 beautifulsoup4-4.9.1 fake-useragent-0.1.11 joblib-0.16.0 numpy-1.19.2 pandas-1.1.2 python-dateutil-2.8.1 pytz-2020.1 scikit-learn-0.23.2 scipy-1.5.2 six-1.15.0 sklearn-0.0 soupsieve-2.0.1 sqlparse-0.3.1 threadpoolctl-2.1.0

当我在虚拟环境中列出包装时，会得到以下信息：

$ docker exec -ti auto-server bash
root@9c1f914d1b7b:/home/ubuntu# source venv/bin/activate
(venv) root@9c1f914d1b7b:/home/ubuntu# pip list
Package    Version
---------- -------
pip        20.2.2
setuptools 49.6.0
wheel      0.35.1
WARNING: You are using pip version 20.2.2; however, version 20.2.3 is available.
You should consider upgrading via the '/home/ubuntu/venv/bin/python -m pip install --upgrade pip' command.

这是正确的方法吗？如何确保将安装软件包？

Answer 1

最后，在容器开发环境中并不一定要有虚拟环境，我只是根据需要设置了图像python环境。

# Dockerfile
...
RUN python3.8 get-pip.py
RUN pip install -r auto/requirements.txt

这不是我要找的东西，但确实可以。

Answer 2

我将简单的Dockerfile用于开发模式

# pull official base image
FROM python:3.6-alpine

# set work directory
WORKDIR /usr/src/app

# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# install psycopg2 dependencies
RUN apk update \
    && apk add postgresql-dev gcc python3-dev

# install dependencies
RUN pip install --upgrade pip
COPY ./requirements.txt .
RUN pip install -r requirements.txt

# copy project
COPY . .

如何在容器中安装pip包

2 个答案: