构建Django的Web镜像

构建Django的Web镜像

1.前提

• 已经在环境上安装了Docker

2.步骤

• 1.拉取最新代码

  git clone https://github.com/lp1506947671/recruitment.git
  

• 2.指定manage.py中读取的Django配置文件来源为os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings.local")

  #!/usr/bin/env python
  """Django's command-line utility for administrative tasks."""
  import os
  import sysdef main():"""Run administrative tasks."""os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings.local")try:from django.core.management import execute_from_command_lineexcept ImportError as exc:raise ImportError("Couldn't import Django. Are you sure it's installed and ""available on your PYTHONPATH environment variable? Did you ""forget to activate a virtual environment?") from excexecute_from_command_line(sys.argv)if __name__ == "__main__":main()
  

• 3.从拉取的代码中找到Dockerfile文件

  FROM python:3.10-alpine
  MAINTAINER xiaopawnye
  ENV DJANGO_SETTINGS_MODULE=settings.local
  WORKDIR /data/recruitment
  COPY ./requirements.txt .
  COPY ./start.sh .
  COPY ./src .
  RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories # 替换为apk阿里云镜像
  RUN apk add --update --no-cache curl jq py3-configobj py3-pip py3-setuptools python3-dev \&& apk add --no-cache gcc g++ jpeg-dev zlib-dev libc-dev libressl-dev musl-dev libffi-dev \&& python -m pip install --upgrade pip \&& pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple \&& apk del gcc g++ libressl-dev musl-dev libffi-dev python3-dev \&& apk del curl jq py3-configobj py3-pip py3-setuptools \&& ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \&& echo 'Asia/Shanghai' >/etc/timezone  \&& rm -rf /var/cache/apk/*
  RUN sed -i 's/\r//' /data/recruitment/start.sh
  RUN chmod +x ./start.sh
  EXPOSE 39979
  CMD ["/bin/sh", "/data/recruitment/start.sh"]
  

• 4.构建镜像,注意下面命令中recruitment/必须是Dockerfile文件的上级父目录

  docker build --network=host -t xiaopawnye/recruitment-base:v1 recruitment/
  

• 5.镜像构建完成后启动容器,命令如下

  docker run --rm --network=host  -p 39979:39979 -v "$(pwd)":/data/recruitment  --env server_params="--settings=settings.local" xiaopawnye/recruitment-base:v1
  

3.问题与思考

• 问题1:执行镜像构建命令时报错docker build -t xiaopawnye/recruitment-base:v1

  报错ERROR: unable to select packages:curl (no such package):required by: world[curl]jq (no such package):required by: world[jq]py3-configobj (no such package):required by: world[py3-configobj]py3-pip (no such package):required by: world[py3-pip]py3-setuptools (no such package):required by: world[py3-setuptools]python3 (no such package):required by: world[python3]python3-dev (no such package):required by: world[python3-dev]
  

  解决方法:

  查询google,Dockerfile编译django时执行pip命令报错网络不通,通过将命令修改为docker build --network=host -t xiaopawnye/recruitment-base:v1即可

• 问题2报错

  WARNING: Running pip as the 'root' user can result in broken permissions and conflicting                                                                                        behaviour with the system package manager. It is recommended to use a virtual environment                                                                                        instead: https://pip.pypa.io/warnings/venv
  Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
  Obtaining recruitment from git+ssh://****@git.zhlh6.cn/lp1506947671/recruitment.git@e94b4                                                                                       93b7646b0b74843cea49cfd14fa66c574b4#egg=recruitment (from -r requirements.txt (line 75))Cloning ssh://****@git.zhlh6.cn/lp1506947671/recruitment.git (to revision e94b493b7646b                                                                                       0b74843cea49cfd14fa66c574b4) to ./src/recruitmentERROR: Error [Errno 2] No such file or directory: 'git' while executing command git ver                                                                                       sion
  ERROR: Cannot find command 'git' - do you have 'git' installed and in your PATH?
  The command '/bin/sh -c apk add --update --no-cache curl jq py3-configobj py3-pip py3-set                                                                                       uptools  python3-dev   && apk add --no-cache gcc g++ jpeg-dev zlib-dev libc-dev libressl-                                                                                       dev musl-dev libffi-dev   && python -m pip install --upgrade pip   && pip install -r requ                                                                                       irements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple  && apk del gcc g++ libressl-dev                                                                                        musl-dev libffi-dev python3-dev   && apk del curl jq py3-configobj py3-pip py3-setuptool                                                                                       s   && ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime   && echo 'Asia/Shanghai'                                                                                        >/etc/timezone    && rm -rf /var/cache/apk/*' returned a non-zero code: 1
  

  解决方法: dockerfiles镜像加速配置:https://blog.csdn.net/gitblog_00337/article/details/153157195

• 问题3:容器启动成功但是web无法访问,显示违反csrf,解决方法注释如下代码

  SESSION_COOKIE_SECURE = True
  CSRF_COOKIE_SECURE = True