在项目中使用了webscoket进行实时通讯,但是生产环境又使用了django+nginx+uwsgi的部署方式,我们都知道uwsgi并不能处理websocket请求,所以需要asgi服务器来处理websocket请求,官方推荐的asgi服务器是daphne
1.部署daphne
项目配置文件目录(wsgi.py同级)下创创建文件asgi.py,加入应用:
"""
ASGI entrypoint. Configures Django and then runs the application
defined in the ASGI_APPLICATION setting.
"""
import os
import django
from channels.routing import get_default_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
django.setup()
application = get_default_application()
启动daphne 测试是否正常运行(成功以后退出)
daphne -p 8001 devops.asgi:application
2.安装supervisor
supervisor是由python实现的一个进程管理工具,可以确保所管理的进程一直运行,当进
程一点中断supervisord会自动进行重启。
安装步骤
yum安装:
yum install python-setuptools
easy_install supervisor
或者
yum install -y epel-release
yum install -y supervisor
手动安装:
wget https://pypi.python.org/packages/source/s/supervisor/supervisor-3.1.3.tar.gz
tar zxf supervisor-3.1.3.tar.gz
cd supervisor
python setup.py install
pip安装:
pip install supervisor
生成配置文件
echo_supervisord_conf > /etc/supervisord.conf
3.使用supervisor管理daphne进程
编辑/etc/supervisord.conf加入配置
[program:daphne]
directory=/opt/app/devops #项目目录
command=daphne -b 127.0.0.1 -p 8001 --proxy-headers devops.asgi:application #启动命令
autostart=true
autorestart=true
stdout_logfile=/tmp/websocket.log #日志
redirect_stderr=true
启动supervisor
supervisord -c /etc/supervisord.conf
启动或者停止daphne
supervisorctl start daphne
supervisorctl stop daphne
三、代理webscoket
修改nginx配置文件
/#####转发配置
upstream wsbackend {
server 127.0.0.1:8001;
}
/######location配置
location /ws/deploy {
proxy_pass http://wsbackend;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $server_name;
}