Amazon Linux or CentOS 6 or RHEL 6 Service for Prometheus Node Exporter

centos-6-service.sh

#!/bin/sh

#
# example start stop daemon for CentOS (sysvinit)
#
# chkconfig: - 64 36
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 2 3 4 6
# Required-Start:
# description: node_exporter start stop daemon for CentOS
# processname: node_exporter
# pidfile: none
# lockfile: /var/lock/subsys/example

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

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0

bin_dir="${BIN_DIR:-/usr/local/bin}"

APPNAME="node_exporter"
APPBIN="${bin_dir}/node_exporter"
APPARGS="-collectors.enabled conntrack,diskstats,entropy,edac,filefd,filesystem,hwmon,infiniband,loadavg,mdadm,meminfo,netdev,netstat,sockstat,stat,textfile,time,uname,vmstat,wifi,zfs"
LOGFILE="/var/log/$APPNAME/error.log"
LOCKFILE="/var/lock/subsys/$APPNAME"
USER=root

LOGPATH=$(dirname $LOGFILE)

start() {
        [ -x $APPBIN ] || exit 5
        [ -d $LOGPATH ] || mkdir $LOGPATH
        [ -f $LOGFILE ] || touch $LOGFILE

        echo -n $"Starting $APPNAME: "
        daemon --user $USER --check $APPNAME nohup $APPBIN >> $LOGFILE 2>&1 &
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch $LOCKFILE
        return $RETVAL
}

stop() {
        echo -n $"Stopping $APPNAME: "
        killproc $APPBIN
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f $LOCKFILE
        return $RETVAL
}

restart() {
        stop
        start
}

rh_status() {
        echo -n "in: rh_status"
        status $APPNAME
}

rh_status_q() {
        echo -n "in: rh_status_q"
        rh_status >/dev/null 2>&1
}
reload(){
        restart
}

case "$1" in
        start)
                rh_status_q && exit 0
                $1
        ;;
        stop)
                rh_status_q || exit 0
                $1
        ;;
        restart)
                $1
        ;;
        reload)
                rh_status_q || exit 7
                $1
        ;;
        status)
                rh_status
        ;;
        *)
                echo $"Usage: $0 {start|stop|status|restart}"
                exit 2
esac