Supervisord 是用Python实现的一款非常实用的进程管理工具，在批量服务化管理时特别有效。可以将非Daemon的应用转为daemon程序。关于supervisord的安装和配置，在网上已经有很多现成的帖子，我这里就不重复了。
在centos和rhel的环境下，我们一般是用chkconfig来管理服务的启动停止、开机自启动等。下面我列出Supervisord的服务脚本。
1. 执行如下命令：
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vim /etc/init.d/supervisord |
2.输入如下内容：
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#!/bin/bash # # supervisord This scripts turns supervisord on # chkconfig: 345 83 04 # description: supervisor is a process control utility. It has a web based # xmlrpc interface as well as a few other nifty features. # # source function library . /etc/rc.d/init.d/functions set -a PREFIX=/usr SUPERVISORD=$PREFIX/bin/supervisord SUPERVISORCTL=$PREFIX/bin/supervisorctl PIDFILE=/var/supervisor/supervisord.pid LOCKFILE=/var/supervisor/supervisord.lock OPTIONS="-c /etc/supervisor/supervisord.conf" # unset this variable if you don't care to wait for child processes to shutdown before removing the $LOCKFILE-lock WAIT_FOR_SUBPROCESSES=yes # remove this if you manage number of open files in some other fashion ulimit -n 96000 RETVAL=0 running_pid() { # Check if a given process pid's cmdline matches a given name pid=$1 name=$2 [ -z "$pid" ] && return 1 [ ! -d /proc/$pid ] && return 1 (cat /proc/$pid/cmdline | tr "\000" "\n"|grep -q $name) || return 1 return 0 } running() { # Check if the process is running looking at /proc # (works for all users) # No pidfile, probably no daemon present [ ! -f "$PIDFILE" ] && return 1 # Obtain the pid and check it against the binary name pid=`cat $PIDFILE` running_pid $pid $SUPERVISORD || return 1 return 0 } start() { echo "Starting supervisord: " if [ -e $PIDFILE ]; then echo "ALREADY STARTED" return 1 fi # start supervisord with options from sysconfig (stuff like -c) $SUPERVISORD $OPTIONS # show initial startup status $SUPERVISORCTL $OPTIONS status # only create the subsyslock if we created the PIDFILE [ -e $PIDFILE ] && touch $LOCKFILE } stop() { echo -n "Stopping supervisord: " $SUPERVISORCTL $OPTIONS shutdown if [ -n "$WAIT_FOR_SUBPROCESSES" ]; then echo "Waiting roughly 60 seconds for $PIDFILE to be removed after child processes exit" for sleep in 2 2 2 2 4 4 4 4 8 8 8 8 last; do if [ ! -e $PIDFILE ] ; then echo "Supervisord exited as expected in under $total_sleep seconds" break else if [[ $sleep -eq "last" ]] ; then echo "Supervisord still working on shutting down. We've waited roughly 60 seconds, we'll let it do its thing from here" return 1 else sleep $sleep total_sleep=$(( $total_sleep + $sleep )) fi fi done fi # always remove the subsys. We might have waited a while, but just remove it at this point. rm -f $LOCKFILE } restart() { stop start } case "$1" in start) start RETVAL=$? ;; stop) stop RETVAL=$? ;; restart|force-reload) restart RETVAL=$? ;; reload) $SUPERVISORCTL $OPTIONS reload RETVAL=$? ;; condrestart) [ -f $LOCKFILE ] && restart RETVAL=$? ;; status) $SUPERVISORCTL $OPTIONS status if running ; then RETVAL=0 else RETVAL=1 fi ;; *) echo $"Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}" exit 1 esac exit $RETVAL |
注意：该文件中的如下几个变量，都需要根据你实际的目录来改写。
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PREFIX=/usr SUPERVISORD=$PREFIX/bin/supervisord ##supervisord 程序的安装路径 SUPERVISORCTL=$PREFIX/bin/supervisorctl ##supervisorctl 程序的安装路径 PIDFILE=/var/supervisor/supervisord.pid ##需要先创建/var/supervisor目录 LOCKFILE=/var/supervisor/supervisord.lock OPTIONS="-c /etc/supervisor/supervisord.conf" ##配置文件的路径 |
保存完毕之后，可以执行以下命令修改文件权限：
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chmod 777 /etc/init.d/supervisord /etc/init.d/supervisord start 或 service supervisord start |
这样，supervisor就启动了。
3. 配置开机启动
执行以下命令：
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chkconfig supervisord on |
可以以下命令查看是否成功
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chkconfig --list | grep supervisord |
