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@stupidbodo
Created April 8, 2015 19:17
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  1. stupidbodo created this gist Apr 8, 2015.
    150 changes: 150 additions & 0 deletions supervisord.init
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,150 @@
    #!/bin/bash
    #
    # supervisord This scripts turns supervisord on
    #
    # Author: Mike McGrath <[email protected]> (based off yumupdatesd)
    # Jason Koppe <[email protected]> adjusted to read sysconfig,
    # use supervisord tools to start/stop, conditionally wait
    # for child processes to shutdown, and startup later
    # Mikhail Mingalev <[email protected]> Merged
    # redhat-init-jkoppe and redhat-sysconfig-jkoppe, and
    # made the script "simple customizable".
    # Brendan Maguire <[email protected]> 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 <[email protected]>.
    #

    # 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/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

    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