在 Docker 上使用 Nginx、uWSGI 和 Postgres 配置 Django

Posted 2023-02-24

【中文标题】在 Docker 上使用 Nginx、uWSGI 和 Postgres 配置 Django

【英文标题】：Configuring Django with Nginx, uWSGI and Postgres on Docker

【发布时间】：2016-04-11 23:44:30

【问题描述】：

我正在尝试使用 nginx、uWSGI 和 Postgres 在 Docker 上设置 Django 应用程序。我找到了这篇关于为 Django 和 Postgres 设置 Compose 的指南：https://docs.docker.com/v1.5/compose/django/

但是，现在我需要添加 Nginx 和 uWSGI。我已经尝试将这个 repo (https://github.com/baxeico/django-uwsgi-nginx) 的文件与 Docker 文档的 Compose 设置一起使用，但遗憾的是没有成功。

这就是我输入docker-compose run web时发生的情况：

Step 17 : RUN pip install -r /home/docker/code/app/requirements.txt
 ---> Running in e1ec89e80d9c
Collecting Django==1.9.1 (from -r /home/docker/code/app/requirements.txt (line 1))
/usr/local/lib/python2.7/dist-packages/pip-7.1.2-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading Django-1.9.1-py2.py3-none-any.whl (6.6MB)
Collecting psycopg2 (from -r /home/docker/code/app/requirements.txt (line 2))
  Downloading psycopg2-2.6.1.tar.gz (371kB)
    Complete output from command python setup.py egg_info:
    running egg_info
    creating pip-egg-info/psycopg2.egg-info
    writing pip-egg-info/psycopg2.egg-info/PKG-INFO
    writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt
    writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt
    writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'
    warning: manifest_maker: standard file '-c' not found

    Error: pg_config executable not found.

    Please add the directory containing pg_config to the PATH
    or specify the full executable path with the option:

        python setup.py build_ext --pg-config /path/to/pg_config build ...

    or with the pg_config option in 'setup.cfg'.

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-XRgbSA/psycopg2
ERROR: Service 'web' failed to build: The command '/bin/sh -c pip install -r /home/docker/code/app/requirements.txt' returned a non-zero code: 1

这是我的 Dockerfile：

from ubuntu:precise

run echo "deb http://us.archive.ubuntu.com/ubuntu/ precise-updates main restricted" | tee -a /etc/apt/sources.list.d/precise-updates.list

# update packages
run apt-get update

# install required packages
run apt-get install -y python python-dev python-setuptools python-software-properties
run apt-get install -y sqlite3
run apt-get install -y supervisor

# add nginx stable ppa
run add-apt-repository -y ppa:nginx/stable
# update packages after adding nginx repository
run apt-get update
# install latest stable nginx
run apt-get install -y nginx

# install pip
run easy_install pip

# install uwsgi now because it takes a little while
run pip install uwsgi

# install our code
add . /home/docker/code/

# setup all the configfiles
run echo "daemon off;" >> /etc/nginx/nginx.conf
run rm /etc/nginx/sites-enabled/default
run ln -s /home/docker/code/nginx-app.conf /etc/nginx/sites-enabled/
run ln -s /home/docker/code/supervisor-app.conf /etc/supervisor/conf.d/

# run pip install
run pip install -r /home/docker/code/app/requirements.txt

run cd /home/docker/code/app && ./manage.py syncdb --noinput

expose 80
cmd ["supervisord", "-n"]

还有 docker-compose.yml：

db:
  image: postgres
web:
  build: .
  command: python vms/manage.py runserver 0.0.0.0:8000
  volumes:
    - .:/code
  ports:
    - "8000:8000"
  links:
    - db

还有名为 nginx-app.conf、supervisor-app.conf、uwsgi_params 和 uwsgi.ini 的文件。这些都来自上述回购。 Requirements.txt 包含 Django 1.9.1、psycopg2 和 requests。

如果这个科学怪人项目有更好的替代方案，我很乐意听到。

【参考方案1】：

在 Ubuntu 上，确保已使用 apt-get 安装了 python-dev 和 libpq-dev，然后再尝试使用 pip 安装 psycopg2。

请参阅installation docs 了解更多信息。

【讨论】：

我忘记了 libpq-dev，将它添加到我的 dockerfile 就可以了。非常感谢！