一、安装supervisor
由于supervisor暂不支持python3，所以我们使用python2的easy_install安装：
[root@centos-venv-fb ~]# python -V Python 2.7.5
[root@centos-venv-fb ~]# easy_install -i https://pypi.tuna.tsinghua.edu.cn/simple supervisor Searching for supervisor Reading https://pypi.tuna.tsinghua.edu.cn/simple/supervisor/ Best match: supervisor 4.1.0 Downloading https://pypi.tuna.tsinghua.edu.cn/packages/de/87/ee1ad8fa533a4b5f2c7623f4a2b585d3c1947af7bed8e65bc7772274320e/supervisor-4.1.0.tar.gz#sha256=2dc86fe0476e945e61483d614ceb2cf4f93b95282eb243bdf792621994360383 Processing supervisor-4.1.0.tar.gz Writing /tmp/easy_install-tUwPwD/supervisor-4.1.0/setup.cfg Running supervisor-4.1.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-tUwPwD/supervisor-4.1.0/egg-dist-tmp-92tQX5 warning: no previously-included files matching '*' found under directory 'docs/.build' Adding supervisor 4.1.0 to easy-install.pth file Installing echo_supervisord_conf script to /usr/bin Installing pidproxy script to /usr/bin Installing supervisorctl script to /usr/bin Installing supervisord script to /usr/bin Installed /usr/lib/python2.7/site-packages/supervisor-4.1.0-py2.7.egg Processing dependencies for supervisor Finished processing dependencies for supervisor
二、配置supervisor
1.生成supervisord.conf
[root@centos-venv-fb ~]# echo_supervisord_conf > /etc/supervisord.conf
[root@centos-venv-fb etc]# ll /etc/super* -rw-r--r--. 1 root root 10535 Jan 31 03:45 /etc/supervisord.conf
2.修改配置文件之前准备工作
查看uwsgi的绝对路径：
# 进入虚拟环境，查看uwsgi绝对路径 [root@centos-venv-fb ~]# workon venv_fb (venv_fb) [root@centos-venv-fb ~]# which uwsgi /root/.virtualenvs/venv_fb/bin/uwsgi
再找到uwsgi需要的ini配置文件的绝对路径：
/root/admin_demo/uwsgi.ini
3.修改配置文件
vi /etc/supervisord.conf
在配置文件的最后添加以下内容：
[program:admin_demo] command=/root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini
这条命令是使用uwsgi运行django项目。
其他配置项：
[program:admin_demo] command=/root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini autostart = true ; 在 supervisord 启动的时候也自动启动 autorestart = true ; 程序异常退出后自动重启 startsecs = 5 ; 启动 5 秒后没有异常退出，就当作已经正常启动了 startretries = 3 ; 启动失败自动重试次数，默认是 3 redirect_stderr = true ; 把 stderr 重定向到 stdout，默认 false user=root loglevel=info
三、使用supervisor
1.启动supervisord
执行命令启动supervisord进程：
[root@centos-venv-fb etc]# supervisord -c /etc/supervisord.conf Unlinking stale socket /tmp/supervisor.sock [root@centos-venv-fb etc]# ps -ef | grep super root 4056 1 0 04:03 ? 00:00:00 /usr/bin/python /usr/bin/supervisord -c /etc/supervisord.conf root 4070 3565 0 04:03 pts/0 00:00:00 grep --color=auto super
启动program:admin_demo：
[root@centos-venv-fb etc]# supervisorctl -c /etc/supervisord.conf admin_demo RUNNING pid 4504, uptime 0:00:08
此时查看uwsgi进程：
[root@centos-venv-fb supervisor]# ps -ef |grep uwsgi root 4504 4503 0 04:48 ? 00:00:00 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4505 4504 0 04:48 ? 00:00:00 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4506 4504 0 04:48 ? 00:00:00 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4507 4504 0 04:48 ? 00:00:00 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4508 4504 0 04:48 ? 00:00:00 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4509 4504 0 04:48 ? 00:00:00 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4520 3958 0 04:52 pts/1 00:00:00 grep --color=auto uwsgi
2.停止进程（踩坑）
[root@centos-venv-fb etc]# supervisorctl -c /etc/supervisord.conf admin_demo RUNNING pid 4504, uptime 0:03:41 supervisor> stop admin_demo # 或者stop all，结束所管理的所有进程 admin_demo: stopped
此时查看uwsgi进程：
[root@centos-venv-fb supervisor]# ps -ef |grep uwsgi root 4526 1 49 04:55 ? 00:00:08 /root/.virtualenvs/venv_fb/bin/uwsgi --ini /root/admin_demo/uwsgi.ini root 4538 3958 0 04:55 pts/1 00:00:00 grep --color=auto uwsgi
我们看到，虽然我们使用了stop admin_demo，但是uwsgi遗留了两条进程，这两条进程编程了孤儿进程（父进程是init gid=1）。
????具体原因不明。。可能是因为uwsgi的实现问题。其他程序可能不存在这种问题。（坑）
3.其他命令
supervisorctl start program_name # 启动某一进程
supervisorctl stop program_name # 停止某一进程
supervisorctl restart program_name # 重启某一进程
supervisorctl reload # 重启启动配置中的所有程序
supervisorctl stop all # 停止所有程序
supervisorctl update # 更新配置
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