CentOS6.5设置Django开发环境

$ django-admin.py startproject myapp
Traceback (most recent call last):
 File "/home/jhadmin/myenv/bin/django-admin.py", line 2, in 
 from django.core import management
 File "/home/jhadmin/myenv/lib/python2.6/site-packages/django/__init__.py", line 1, in 
 from django.utils.version import get_version
 File "/home/jhadmin/myenv/lib/python2.6/site-packages/django/utils/version.py", line 7, in 
 from django.utils.lru_cache import lru_cache
 File "/home/jhadmin/myenv/lib/python2.6/site-packages/django/utils/lru_cache.py", line 28
 fasttypes = {int, str, frozenset, type(None)},
  ^
SyntaxError: invalid syntax

检查一下，发现是我机器上的 python 版本太老，CentOS6.5的 Python 是2.6.6，而最新的 django （1.8.4）要求的 Python 版本是2.7.x，本想着升级一下自己机器的 Python，又怕会对别的应用有影响，正犯愁呢，突然想到可以使用 Docker 来解决我碰到问题。下面就是我使用 Docker 搭建的 django 开发环境的步骤。

首先创建一个目录，用来存放 Docker 的配置文件，这里我就叫 django_env。

在 django_env 目录下创建一个 Dockerfile 文件，文件内容如下

FROM centos:centos7

MAINTAINER Fanbin Kong "kongxx@hotmail.com"

RUN rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
RUN yum install -y openssh-server sudo supervisor python-pip

RUN sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config

RUN echo "root:Letmein" | chpasswd

RUN ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key
RUN ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
RUN mkdir /var/run/sshd

RUN pip install django

RUN mkdir -p /var/log/supervisor
COPY supervisord.conf /etc/supervisord.conf
 
EXPOSE 22 
CMD ["/usr/bin/supervisord"]

[supervisord]
nodaemon=true
[program:sshd]
command=/usr/sbin/sshd -D

cd /data
django-admin.py startproject myapp
cd myapp
python manage.py runserver 0.0.0.0:8000