详解Supervisor安装与配置（Linux/Unix进程管理工具）

wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py -O - | sudo python

easy_install supervisor

$CWD/supervisord.conf
$CWD/etc/supervisord.conf
/etc/supervisord.conf
/etc/supervisor/supervisord.conf (since Supervisor 3.3.0)
../etc/supervisord.conf (Relative to the executable)
../supervisord.conf (Relative to the executable)

mkdir /etc/supervisor
echo_supervisord_conf > /etc/supervisor/supervisord.conf

[unix_http_server]
file=/tmp/supervisor.sock  ;UNIX socket 文件，supervisorctl 会使用
;chmod=0700         ;socket文件的mode，默认是0700
;chown=nobody:nogroup    ;socket文件的owner，格式：uid:gid

;[inet_http_server]     ;HTTP服务器，提供web管理界面
;port=127.0.0.1:9001    ;Web管理后台运行的IP和端口，如果开放到公网，需要注意安全性
;username=user       ;登录管理后台的用户名
;password=123        ;登录管理后台的密码

[supervisord]
logfile=/tmp/supervisord.log ;日志文件，默认是 $CWD/supervisord.log
logfile_maxbytes=50MB    ;日志文件大小，超出会rotate，默认 50MB，如果设成0，表示不限制大小
logfile_backups=10      ;日志文件保留备份数量默认10，设为0表示不备份
loglevel=info        ;日志级别，默认info，其它: debug,warn,trace
pidfile=/tmp/supervisord.pid ;pid 文件
nodaemon=false        ;是否在前台启动，默认是false，即以 daemon 的方式启动
minfds=1024         ;可以打开的文件描述符的最小值，默认 1024
minprocs=200         ;可以打开的进程数的最小值，默认 200

[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ;通过UNIX socket连接supervisord，路径与unix_http_server部分的file一致
;serverurl=http://127.0.0.1:9001 ; 通过HTTP的方式连接supervisord

; [program:xx]是被管理的进程配置参数，xx是进程的名称
[program:xx]
command=/opt/apache-tomcat-8.0.35/bin/catalina.sh run ; 程序启动命令
autostart=true    ; 在supervisord启动的时候也自动启动
startsecs=10     ; 启动10秒后没有异常退出，就表示进程正常启动了，默认为1秒
autorestart=true   ; 程序退出后自动重启,可选值：[unexpected,true,false]，默认为unexpected，表示进程意外杀死后才重启
startretries=3    ; 启动失败自动重试次数，默认是3
user=tomcat     ; 用哪个用户启动进程，默认是root
priority=999     ; 进程启动优先级，默认999，值小的优先启动
redirect_stderr=true ; 把stderr重定向到stdout，默认false
stdout_logfile_maxbytes=20MB ; stdout 日志文件大小，默认50MB
stdout_logfile_backups = 20  ; stdout 日志文件备份数，默认是10
; stdout 日志文件，需要注意当指定目录不存在时无法正常启动，所以需要手动创建目录（supervisord 会自动创建日志文件）
stdout_logfile=/opt/apache-tomcat-8.0.35/logs/catalina.out
stopasgroup=false   ;默认为false,进程被杀死时，是否向这个进程组发送stop信号，包括子进程
killasgroup=false   ;默认为false，向进程组发送kill信号，包括子进程

;包含其它配置文件
[include]
files = relative/directory/*.ini  ;可以指定一个或多个以.ini结束的配置文件

[include]
files = /opt/absolute/filename.ini /opt/absolute/*.ini foo.conf config??.ini

[include]
files = /etc/supervisor/config.d/*.ini

[program:tomcat]
command=/opt/apache-tomcat-8.0.35/bin/catalina.sh run
stdout_logfile=/opt/apache-tomcat-8.0.35/logs/catalina.out
autostart=true
autorestart=true
startsecs=5
priority=1
stopasgroup=true
killasgroup=true

supervisord -c /etc/supervisor/supervisord.conf

stop tomcat // 表示停止tomcat进程
stop all   // 表示停止所有进程
// ...

supervisorctl status
supervisorctl stop tomcat
supervisorctl start tomcat
supervisorctl restart tomcat
supervisorctl reread
supervisorctl update

;[inet_http_server]     ; inet (TCP) server disabled by default
;port=127.0.0.1:9001    ; (ip_address:port specifier, *:port for all iface)
;username=user       ; (default is no username (open server))
;password=123        ; (default is no password (open server))

[inet_http_server]     ; inet (TCP) server disabled by default
port=0.0.0.0:9001     ; (ip_address:port specifier, *:port for all iface)
username=user       ; (default is no username (open server))
password=123        ; (default is no password (open server))

[Unit]
Description=supervisor
After=network.target

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

[Install]
WantedBy=multi-user.target

systemctl enable supervisor.service
systemctl daemon-reload

chmod 766 supervisor.service

#!/bin/bash
#
# supervisord  This scripts turns supervisord on
#
# Author:    Mike McGrath <mmcgrath@redhat.com> (based off yumupdatesd)
#
# chkconfig:  - 95 04
#
# description: supervisor is a process control utility. It has a web based
#        xmlrpc interface as well as a few other nifty features.
# processname: supervisord
# config: /etc/supervisor/supervisord.conf
# pidfile: /var/run/supervisord.pid
#

# source function library
. /etc/rc.d/init.d/functions

RETVAL=0

start() {
  echo -n $"Starting supervisord: "
  daemon "supervisord -c /etc/supervisor/supervisord.conf "
  RETVAL=$?
  echo
  [ $RETVAL -eq 0 ] && touch /var/lock/subsys/supervisord
}

stop() {
  echo -n $"Stopping supervisord: "
  killproc supervisord
  echo
  [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/supervisord
}

restart() {
  stop
  start
}

case "$1" in
 start)
  start
  ;;
 stop) 
  stop
  ;;
 restart|force-reload|reload)
  restart
  ;;
 condrestart)
  [ -f /var/lock/subsys/supervisord ] && restart
  ;;
 status)
  status supervisord
  RETVAL=$?
  ;;
 *)
  echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"
  exit 1
esac

exit $RETVAL

chmod 755 /etc/rc.d/init.d/supervisor
chkconfig supervisor on

yum install epel-release
yum install -y supervisor