Linux 进程管理器 supervixor

使用 supervisor 管理进程

http://www.cnblogs.com/smail-bao/p/5673434.html

http://ju.outofmemory.cn/entry/201847

http://cpper.info/2016/04/14/supervisor-usage.html

http://xitongjiagoushi.blog.51cto.com/9975742/1710321

http://liyangliang.me/posts/2015/06/using-supervisor/

这个可是一个好东西，以后再也不用　nohup 　XXXX　＆　　了。有了它，妈妈再也不用担心我的学习了

我这里用[root@git logs]# easy_install supervisor的方式安装，之前我也试过用pip的方式安装，但是我装好之后，创建配置文件的时候报错了，

一直也没有找到原因，希望哪位朋友看到的时候帮忙和我说一下，谢谢

或者是源码安装

wget https://pypi.python.org/packages/source/s/supervisor/supervisor-3.1.3.tar.gz --no-check-certificat

tar zxf supervisor-3.1.3.tar.gz

cd supervisor-3.1.3

python setup.py install

/usr/local/bin/echo_supervisord_conf >> /etc/supervisord.conf

装好之后

生成配置文件

echo_supervisord_conf > /etc/supervisord.conf

我们现在多虑一下看看里面有哪些有效内容

[root@zabbix ansible]# cat supervisord.conf | grep -v "^;" | grep -v "^$"
[unix_http_server]
file=/tmp/supervisor.sock   ; (the path to the socket file)
[supervisord]
user=root
logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB        ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10           ; (num of main logfile rotation backups;default 10)
loglevel=info                ; (log level;default info; others: debug,warn,trace)
pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=false               ; (start in foreground if true;default false)
minfds=1024                  ; (min. avail startup file descriptors;default 1024)
minprocs=200                 ; (min. avail process descriptors;default 200)
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL  for a unix socket
#serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket

###为了不将所有新增配置信息全写在一个配置文件里，这里新建一个文件夹，每个程序设置一个配置文件，相互隔离
mkdir /etc/supervisord.d/  

### 修改配置文件
vim /etc/supervisord.conf

### 加入以下配置信息
[include]
files = /etc/supervisord.d/*.conf

### 在supervisord.conf中设置通过web可以查看管理的进程，加入以下代码（默认即有，取消注释即可）    
[inet_http_server]
port=9001
username=user
password=123

然后我们这里就可以使用http://IP:9001来登陆管理界面

这里我们可以选择使用脚本来启动，停止supervisor

启动脚本为

1. wget https://github.com/Supervisor/initscripts/raw/master/redhat-init-mingalevme

[root@zabbix ~]# cat /etc/init.d/supervisor 
#!/bin/bash
#
# supervisord   This scripts turns supervisord on
#
# Author:       Mike McGrath <mmcgrath@redhat.com> (based off yumupdatesd)
#               Jason Koppe <jkoppe@indeed.com> adjusted to read sysconfig,
#                   use supervisord tools to start/stop, conditionally wait
#                   for child processes to shutdown, and startup later
#               Mikhail Mingalev <mingalevme@gmail.com> Merged
#                   redhat-init-jkoppe and redhat-sysconfig-jkoppe, and
#                   made the script "simple customizable".
#               Brendan Maguire <maguire.brendan@gmail.com> Added OPTIONS to
#                   SUPERVISORCTL status call
#
# 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.
#               Script was originally written by Jason Koppe <jkoppe@indeed.com>.
#

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

set -a

PREFIX=/usr/local

SUPERVISORD=$PREFIX/bin/supervisord
SUPERVISORCTL=$PREFIX/bin/supervisorctl

PIDFILE=/var/run/supervisord.pid
LOCKFILE=/var/lock/subsys/supervisord

OPTIONS="-c /etc/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