Scollector init.d 指令碼

scollector 的示例 init 指令碼：

#!/bin/bash
#
# scollector        Startup script for scollector.
#
# chkconfig: 2345 90 60
# description: scollector is a replacement for OpenTSDB's TCollector \
# and can be used to send metrics to a Bosun server

# Source function library.
. /etc/init.d/functions

RETVAL=0
PIDFILE=/var/run/scollector.pid

prog=scollector
exec=/opt/scollector/scollector-linux-amd64
scollector_conf=/opt/scollector/scollector.toml
scollector_logs=/var/log/scollector
scollector_opts="-conf $scollector_conf -log_dir=$scollector_logs"

lockfile=/var/lock/subsys/$prog

# Source config
if [ -f /etc/sysconfig/$prog ] ; then
    . /etc/sysconfig/$prog
fi

start() {
        [ -x $exec ] || exit 5
        umask 077
        echo -n $"Starting scollector: "
        daemon --check=$exec --pidfile="$PIDFILE" "{ $exec $scollector_opts & } ; echo \$! >| $PIDFILE"
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch $lockfile
        return $RETVAL
}
stop() {
        echo -n $"Shutting down scollector: "
        killproc -p "$PIDFILE" $exec
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f $lockfile
        return $RETVAL
}
rhstatus() {
        status -p "$PIDFILE" -l $prog $exec
}
restart() {
        stop
        start
}

case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        restart
        ;;
  status)
        rhstatus
        ;;
  *)
        echo $"Usage: $0 {start|stop|restart|status}"
        exit 3
esac

exit $?