Supervisor进程管理

1、安装
Pip 安装：pip install supervisor
yum 安装：yum install supervisor
apt 安装：apt-get install supervisor
2、简单管理
[root@localhost ~]# echo_supervisord_conf > /etc/supervisord.d/supervisord.conf      //生成配置文件
[root@localhost ~]# cat /etc/supervisord.conf       //默认配置文件路径
[root@localhost ~]# supervisord      //使用默认配置文件启动supervisor服务
[root@localhost ~]# supervisord -c /etc/supervisord.d/supervisord.conf    //指定配置文件启动supervisor服务
配置文件示例

[unix_http_server]
file=/var/run/supervisor/supervisor.sock

[inet_http_server]
port=*:9001
username=user
password=123

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]
serverurl=unix:///var/run/supervisor/supervisor.sock
;serverurl=http://127.0.0.1:9001
;username=user
;password=123

[supervisord]
logfile=/tmp/supervisord.log
logfile_maxbytes=50MB
logfile_backups=10
loglevel=info
pidfile=/tmp/supervisord.pid
nodaemon=false
minfds=1024
minprocs=200

[program:theprogramname]
command=/bin/cat              ; the program (relative uses PATH, can take args)
process_name=%(program_name)s ; process_name expr (default %(program_name)s)
numprocs=1                    ; number of processes copies to start (def 1)
directory=/tmp                ; directory to cwd to before exec (def no cwd)
umask=022                     ; umask for process (default None)
priority=999                  ; the relative start priority (default 999)
autostart=true                ; start at supervisord start (default: true)
autorestart=true              ; retstart at unexpected quit (default: true)

3、supervisorctl命令说明
[root@localhost ~]# supervisorctl status     //查看所有进程的状态
[root@localhost ~]# supervisorctl stop theprogramname         //停止theprogramname
[root@localhost ~]# supervisorctl start theprogramname        //启动theprogramname
[root@localhost ~]# supervisorctl restart theprogramname    //重启theprogramname
[root@localhost ~]# supervisorctl update      //更新新的配置到supervisord（不会重启原来已运行的程序）
[root@localhost ~]# supervisorctl reload      //载入所有配置文件，并按新的配置启动、管理所有进程（会重启原来已运行的程序）
注：直接输入supervisorctl进入supervisorctl的shell交互界面，此时上面的命令不带supervisorctl可直接使用
4、supervisor服务管理脚本
[root@localhost ~]# cat /usr/lib/systemd/system/supervisord.service

[Unit]
Description=Process Monitoring and Control Daemon
After=rc-local.service nss-user-lookup.target

[Service]
Type=forking
ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf
ExecStop=/usr/bin/supervisorctl shutdown
ExecReload=/usr/bin/supervisorctl reload
killMode=process
Restart=on-failure
RestartSec=42s

[Install]
WantedBy=multi-user.target

参考链接：
       https://www.cnblogs.com/xuezhigu/p/7660203.html
       http://supervisord.org/configuration.html