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#!/bin/sh | |
### BEGIN INIT INFO | |
# Provides: Node exporter | |
# Required-Start: $local_fs $network $named $time $syslog | |
# Required-Stop: $local_fs $network $named $time $syslog | |
# Default-Start: 2 3 4 5 | |
# Default-Stop: 0 1 6 | |
# Description: Node exporter for prometheus written in Go | |
### END INIT INFO | |
DAEMON=/opt/node_exporter | |
NAME=node_exporter | |
USER=ubuntu | |
PIDFILE=/var/run/prometheus/$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 |
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