supervisor使用

supervisor安装请参考flask应用部署——安装环境

生成配置文件

# cd /etc
# mkdir -p supervisord/conf.d
# echo_supervisord_conf > /etc/supervisord/supervisord.conf

修改supervisord.conf

# vim supervisord.conf # G直接跳到最后一行

取消下面注释并修改

[include]
files = /etc/supervisord/conf.d/*.ini

ok，现在可以在/etc/supervisord/conf.d/目录下创建配置文件了

# vim honmaple.com.ini

输入以下内容

# 进程的名字
[program:website]
# 命令
command=/home/www/honmaple.com/venv/bin/gunicorn run:app -c /home/www/honmaple.com/gunicorn.conf
# 网站目录
directory=/home/www/honmaple.com
# 进程所属用户
user=www
# 自动重启设置。
autostart=true
autorestart=true
# 日志存放位置。
stdout_logfile=/home/www/honmaple.com/logs/gunicorn_supervisor.log

上面有几处需要注意的地方

创建新用户www

# useradd www
# passwd www #设置密码
# su - www
$ cd
$ mkdir -p honmaple.com/logs

建立虚拟环境(honmaple.com/目录下)

$ virtualenv-3.4 venv
$ . venv/bin/activate

gunicorn配置

# gunicorn.conf
workers = 4
bind = '127.0.0.1:8000'

简单的web应用

#run.py
from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello World!'

if __name__ == '__main__':
    app.run()

加载supervisor配置

# supervisord -c /etc/supervisord/supervisord.conf
# supervisorctl -c /etc/supervisord/supervisord.conf reload

supervisor遇到的问题

提示

Error: Another program is already listening on a port that one of our HTTP servers is configured to use.  Shut this program down first before starting supervisord.
For help, use /usr/bin/supervisord -h
...fail!

解决办法

# unlink /tmp/supervisor.sock  

提示

error: <class 'socket.error'>, [Errno 111] Connection refused: file: /usr/lib64/python2.6/socket.py line: 567

解决办法

# supervisord -c /etc/supervisord/supervisord.conf
# supervisorctl -c /etc/supervisord/supervisord.conf reload

提示
ERROR (no such process),请仔细查看配置文件是否有误