Supervisor — система управления процессами

#!/bin/bash
#
# supervisord   This scripts turns supervisord on
#
# Author:       Mike McGrath  (based off yumupdatesd)
#               Jason Koppe  adjusted to read sysconfig,
#                   use supervisord tools to start/stop, conditionally wait
#                   for child processes to shutdown, and startup later
#               Mikhail Mingalev  Merged
#                   redhat-init-jkoppe and redhat-sysconfig-jkoppe, and
#                   made the script "simple customizable".
#
# 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 .
#

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

set -a

PREFIX=/usr

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 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

#! /bin/sh
#
# Downloaded from:
# http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/trusty/supervisor/trusty/view/head:/debian/supervisor.init
#
# skeleton  example file to build /etc/init.d/ scripts.
#    This file should be used to construct scripts for /etc/init.d.
#
#    Written by Miquel van Smoorenburg .
#    Modified for Debian
#    by Ian Murdock .
#               Further changes by Javier Fernandez-Sanguino 
#
# Version: @(#)skeleton  1.9  26-Feb-2001  miquels@cistron.nl
#
### BEGIN INIT INFO
# Provides:          supervisor
# Required-Start:    $remote_fs $network $named
# Required-Stop:     $remote_fs $network $named
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start/stop supervisor
# Description:       Start/stop supervisor daemon and its configured
#                    subprocesses.
### END INIT INFO

. /lib/lsb/init-functions

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/bin/supervisord
NAME=supervisord
DESC=supervisor

test -x $DAEMON || exit 0

LOGDIR=/var/log/supervisor
PIDFILE=/var/run/$NAME.pid
DODTIME=5                   # Time to wait for the server to die, in seconds
                            # If this value is set too low you might not
                            # let some servers to die gracefully and
                            # 'restart' will not work

# Include supervisor defaults if available
if [ -f /etc/default/supervisor ] ; then
  . /etc/default/supervisor
fi
DAEMON_OPTS="-c /etc/supervisord.conf $DAEMON_OPTS"

set -e

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 $DAEMON || return 1
    return 0
}

force_stop() {
# Forcefully kill the process
    [ ! -f "$PIDFILE" ] && return
    if running ; then
        kill -15 $pid
        # Is it really dead?
        [ -n "$DODTIME" ] && sleep "$DODTIME"s
        if running ; then
            kill -9 $pid
            [ -n "$DODTIME" ] && sleep "$DODTIME"s
            if running ; then
                echo "Cannot kill $LABEL (pid=$pid)!"
                exit 1
            fi
        fi
    fi
    rm -f $PIDFILE
    return 0
}

case "$1" in
  start)
  echo -n "Starting $DESC: "
  start-stop-daemon --start --quiet --pidfile $PIDFILE \
   --startas $DAEMON -- $DAEMON_OPTS
 test -f $PIDFILE || sleep 1
        if running ; then
            echo "$NAME."
        else
            echo " ERROR."
        fi
 ;;
  stop)
 echo -n "Stopping $DESC: "
  start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE 
 echo "$NAME."
 ;;
  force-stop)
 echo -n "Forcefully stopping $DESC: "
        force_stop
        if ! running ; then
            echo "$NAME."
        else
            echo " ERROR."
        fi
 ;;
  #reload)
  #
 # If the daemon can reload its config files on the fly
  # for example by sending it SIGHUP, do it here.
 #
 # If the daemon responds to changes in its config file
  # directly anyway, make this a do-nothing entry.
  #
 # echo "Reloading $DESC configuration files."
 # start-stop-daemon --stop --signal 1 --quiet --pidfile \
  # /var/run/$NAME.pid --exec $DAEMON
  #;;
  force-reload)
 #
 # If the "reload" option is implemented, move the "force-reload"
  # option to the "reload" entry above. If not, "force-reload" is
 # just the same as "restart" except that it does nothing if the
 #   daemon isn't already running.
  # check wether $DAEMON is running. If so, restart
 start-stop-daemon --stop --test --quiet --pidfile $PIDFILE \
        --startas $DAEMON \
 && $0 restart \
  || exit 0
 ;;
  restart)
    echo -n "Restarting $DESC: "
    start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE
  [ -n "$DODTIME" ] && sleep $DODTIME
 start-stop-daemon --start --quiet --pidfile $PIDFILE \
   --startas $DAEMON -- $DAEMON_OPTS
 echo "$NAME."
 ;;
  status)
    echo -n "$LABEL is "
    if running ;  then
        echo "running"
    else
        echo " not running."
        exit 1
    fi
    ;;
  *)
 N=/etc/init.d/$NAME
 # echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
  echo "Usage: $N {start|stop|restart|force-reload|status|force-stop}" >&2
 exit 1
  ;;
esac

exit 0

[program:websocket]
command=/usr/bin/php server.php
process_name=websocket
directory=/var/www/websocket/bin/
autostart=true
autorestart=true
user=user
stdout_logfile=/var/www/logs/websocket_stdout.log
stdout_logfile_maxbytes=10MB
stderr_logfile=/var/www/logs/websocket_stderr.log
stderr_logfile_maxbytes=10MB