Init.d script for prometheus node exporter

node_exporter.default

# Set the command-line arguments to pass to the server.
ARGS='-web.listen-address=:9100 -collector.diskstats.ignored-devices="^(ram|loop|fd)\\d+$"' 

# Prometheus-node-exporter supports the following options:
#  -collector.diskstats.ignored-devices="^(ram|loop|fd|(h|s|v|xv)d[a-z])\\d+$": Regexp of devices to ignore for diskstats.
#  -collector.filesystem.ignored-mount-points="^/(sys|proc|dev)($|/)": Regexp of mount points to ignore for filesystem collector.
#  -collector.ipvs.procfs="/proc": procfs mountpoint.
#  -collector.megacli.command="megacli": Command to run megacli.
#  -collector.ntp.server="": NTP server to use for ntp collector.
#  -collector.textfile.directory="": Directory to read text files with metrics from.
#  -collectors.enabled="diskstats,filesystem,loadavg,meminfo,stat,textfile,time,netdev,netstat": Comma-separated list of collectors to use.
#  -collectors.print=false: If true, print available collectors and exit.
#  -debug.memprofile-file="": Write memory profile to this file upon receipt of SIGUSR1.
#  -log.level=info: Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal, panic].
#  -web.listen-address=":9100": Address on which to expose metrics and web interface.
#  -web.telemetry-path="/metrics": Path under which to expose metrics.

node_exporter.init.d

#!/bin/sh
### BEGIN INIT INFO
# Provides:          Node exporter
# Required-Start:    $local_fs $network $named $time $syslog
# Required-Stop:     $local_fs $network $named $time $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Description:       Node exporter for prometheus written in Go
### END INIT INFO

DAEMON=/opt/prometheus/node_exporter
NAME=node_exporter
USER=prometheus
PIDFILE=/var/run/prometheus/$NAME.pid
LOGFILE=/var/log/prometheus/$NAME.log

ARGS=""
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

do_start_prepare()
{
    mkdir -p `dirname $PIDFILE` || true
    mkdir -p `dirname $LOGFILE` || true
    chown -R $USER: `dirname $LOGFILE`
    chown -R $USER: `dirname $PIDFILE`
}

do_start_cmd()
{
    do_start_prepare
    echo -n "Starting daemon: "$NAME
	start-stop-daemon --chuid $USER -C --background --start --quiet --pidfile $PIDFILE --make-pidfile --exec $DAEMON -- $ARGS >> $LOGFILE 2>&1
	echo "."
}

do_stop_cmd()
{
    echo -n "Stopping daemon: "$NAME
	start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE
	rm $PIDFILE
    echo "."
}

uninstall() {
  echo -n "Are you really sure you want to uninstall this service? That cannot be undone. [yes|No] "
  local SURE
  read SURE
  if [ "$SURE" = "yes" ]; then
    stop
    rm -f "$PIDFILE"
    echo "Notice: log file was not removed: '$LOGFILE'" >&2
    update-rc.d -f <NAME> remove
    rm -fv "$0"
  fi
}

status() {
        printf "%-50s" "Checking $NAME..."
    if [ -f $PIDFILE ]; then
        PID=$(cat $PIDFILE)
            if [ -z "$(ps axf | grep ${PID} | grep -v grep)" ]; then
                printf "%s\n" "The process appears to be dead but pidfile still exists"
            else    
                echo "Running, the PID is $PID"
            fi
    else
        printf "%s\n" "Service not running"
    fi
}


case "$1" in
  start)
    do_start_cmd
    ;;
  stop)
    do_stop_cmd
    ;;
  status)
    status
    ;;
  uninstall)
    uninstall
    ;;
  restart)
    stop
    start
    ;;
  *)
    echo "Usage: $1 {start|stop|status|restart|uninstall}"
    exit 1
esac

exit 0

prometheus.init.d

#!/bin/sh
### BEGIN INIT INFO
# Provides:          Prometheus
# Required-Start:    $local_fs $network $named $time $syslog
# Required-Stop:     $local_fs $network $named $time $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Description:       Prometheus - Monitoring system & time series database
### END INIT INFO

WORKING_DIR=/opt/prometheus
DAEMON=$WORKING_DIR/prometheus
NAME=prometheus
USER=prometheus
PIDFILE=/var/run/prometheus/$NAME.pid
LOGFILE=/var/log/prometheus/$NAME.log

ARGS=""

do_start_prepare()
{
  mkdir -p `dirname $PIDFILE` || true
  mkdir -p `dirname $LOGFILE` || true
  chown -R $USER: `dirname $LOGFILE`
  chown -R $USER: `dirname $PIDFILE`
}

do_start_cmd()
{
  do_start_prepare
  echo -n "Starting daemon: "$NAME
  start-stop-daemon --chdir $WORKING_DIR --chuid $USER -C --background --start --quiet --pidfile $PIDFILE --make-pidfile --exec $DAEMON -- $ARGS >> $LOGFILE 2>&1
  echo "."
}

do_stop_cmd()
{
  echo -n "Stopping daemon: "$NAME
  start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE
  rm $PIDFILE
  echo "."
}

uninstall() {
  echo -n "Are you really sure you want to uninstall this service? That cannot be undone. [yes|No] "
  local SURE
  read SURE
  if [ "$SURE" = "yes" ]; then
    stop
    rm -f "$PIDFILE"
    echo "Notice: log file was not removed: '$LOGFILE'" >&2
    update-rc.d -f <NAME> remove
    rm -fv "$0"
  fi
}

status() {
  printf "%-50s" "Checking $NAME..."
  if [ -f $PIDFILE ]; then
    PID=$(cat $PIDFILE)
    if [ -z "$(ps axf | grep ${PID} | grep -v grep)" ]; then
      printf "%s\n" "The process appears to be dead but pidfile still exists"
    else    
      echo "Running, the PID is $PID"
    fi
  else
    printf "%s\n" "Service not running"
  fi
}


case "$1" in
  start)
    do_start_cmd
  ;;
  stop)
    do_stop_cmd
  ;;
    status)
    status
  ;;
  uninstall)
    uninstall
  ;;
  restart)
    stop
  start
  ;;
  *)
  echo "Usage: $1 {start|stop|status|restart|uninstall}"
  exit 1
esac

exit 0

Hi,

with: "sudo node_exporter restart" I get

stop: missing job name
Try stop --help' for more information. start: missing job name Try start --help' for more information.

I just changed the case section:
restart)
stop
start

restart)
do_stop_cmd
do_start_cmd

and it works.

Noob question, sorry. Do I just copy these to /etc/init.d/?
Do I need to change the file extensions or something? Do I need to change the chmod?

Noob question, sorry. Do I just copy these to /etc/init.d/?
Do I need to change the file extensions or something? Do I need to change the chmod?

normally you would simply move it to /etc/init.d/ and drop the extensions
to enable it chmod +x the file

so it would result in something like this (for the node_exporter script)

-rwxr-xr-x   1 root root 2.1K Dec  7  2016 node_exporter*

Thank you!

I did this, but I'm getting the following for prometheus(.init.d):

root@marsboard:/etc/init.d# chmod +x prometheus
root@marsboard:/etc/init.d# service prometheus start
chown: invalid spec: 'prometheus:'
chown: invalid spec: 'prometheus:'
Starting daemon: prometheus.
root@marsboard:/etc/init.d#

If I try to restart:
root@marsboard:/etc/init.d# service prometheus restart
/etc/init.d/prometheus: 86: /etc/init.d/prometheus: stop: not found
/etc/init.d/prometheus: 87: /etc/init.d/prometheus: start: not found

my prometheus has the following settings:
-rwxr-xr-x 1 root root 1994 Oct 31 18:59 prometheus

chown: invalid spec: but I'm running as root and the file is root:root...

The service is not starting, neither node_export or prometheus

Both of them work if I run them from /opt/prometheus and /opt/node_exporter respectively with ./prometheus & or /.node_exporter & :
10998 pts/0 00:00:15 prometheus
11052 pts/0 00:00:11 node_exporter
11085 pts/0 00:00:00 ps

What am I missing here?

Aah, user for the script is prometheus and I'm running as root. changed the script user to root and i didnt get the chown errors...
I still get the start and stop errors though... and the service is not running...

ok, changed the start and stop in restart case to do_start_cmd and do_stop_cmd as @tmikulin suggested so I got rid of the start and stop errors. now prometheus seems to start, but not node_exporter...

the scripts are only for starting the binary using init.d (autostart)
you still need to download the binary manually and so on.

so you need the prometheus binary in /opt/prometheus as prometheus and the config besides it

Current node_exporter does not use single dash ('-') style parameters.