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@adamotte
Last active August 29, 2015 14:27
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[ARM] [RPI] Grafana init.d script
#! /usr/bin/env bash
# chkconfig: 2345 80 05
# description: Grafana web server & backend
# processname: grafana
# config: /etc/grafana/grafana.ini
# pidfile: /var/run/grafana.pid
### BEGIN INIT INFO
# Provides: grafana
# Required-Start: $all
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start grafana at boot time
### END INIT INFO
# tested on
# 1. New lsb that define start-stop-daemon
# 3. Centos with initscripts package installed
PATH=/bin:/usr/bin:/sbin:/usr/sbin
NAME=grafana-server
DESC="Grafana Server"
DEFAULT=/opt/grafana/$NAME
GRAFANA_USER=grafana
GRAFANA_GROUP=grafana
GRAFANA_HOME=/opt/grafana
CONF_DIR=/etc/opt/grafana
WORK_DIR=$GRAFANA_HOME
DATA_DIR=/var/lib/grafana
LOG_DIR=/var/log/grafana
CONF_FILE=$CONF_DIR/custom.ini
MAX_OPEN_FILES=10000
PID_FILE=/var/run/$NAME.pid
DAEMON=$DEFAULT
if [ `id -u` -ne 0 ]; then
echo "You need root privileges to run this script"
exit 4
fi
if [ ! -x $DAEMON ]; then
echo "Program not installed or not executable"
exit 5
fi
. /lib/lsb/init-functions
if [ -r /etc/default/rcS ]; then
. /etc/default/rcS
fi
DAEMON_OPTS="--pidfile=${PID_FILE} --config=${CONF_FILE} cfg:default.paths.data=${DATA_DIR} cfg:default.paths.logs=${LOG_DIR}"
case "$1" in
start)
log_daemon_msg "Starting $DESC"
pid=`pidofproc -p $PID_FILE grafana`
if [ -n "$pid" ] ; then
log_begin_msg "Already running."
log_end_msg 0
exit 0
fi
# Prepare environment
mkdir -p "$LOG_DIR" "$DATA_DIR" && chown "$GRAFANA_USER":"$GRAFANA_GROUP" "$LOG_DIR" "$DATA_DIR"
touch "$PID_FILE" && chown "$GRAFANA_USER":"$GRAFANA_GROUP" "$PID_FILE"
if [ -n "$MAX_OPEN_FILES" ]; then
ulimit -n $MAX_OPEN_FILES
fi
# Start Daemon
start-stop-daemon --start -b --chdir "$WORK_DIR" --user "$GRAFANA_USER" -c "$GRAFANA_USER" --pidfile "$PID_FILE" --exec $DAEMON -- $DAEMON_OPTS
return=$?
if [ $return -eq 0 ]
then
sleep 1
# check if pid file has been written two
if ! [[ -s $PID_FILE ]]; then
log_end_msg 1
exit 1
fi
i=0
timeout=10
# Wait for the process to be properly started before exiting
until { cat "$PID_FILE" | xargs kill -0; } >/dev/null 2>&1
do
sleep 1
i=$(($i + 1))
if [ $i -gt $timeout ]; then
log_end_msg 1
exit 1
fi
done
fi
log_end_msg $return
;;
stop)
log_daemon_msg "Stopping $DESC"
if [ -f "$PID_FILE" ]; then
start-stop-daemon --stop --pidfile "$PID_FILE" \
--user "$GRAFANA_USER" \
--retry=TERM/20/KILL/5 >/dev/null
if [ $? -eq 1 ]; then
log_progress_msg "$DESC is not running but pid file exists, cleaning up"
elif [ $? -eq 3 ]; then
PID="`cat $PID_FILE`"
log_failure_msg "Failed to stop $DESC (pid $PID)"
exit 1
fi
rm -f "$PID_FILE"
else
log_progress_msg "(not running)"
fi
log_end_msg 0
;;
status)
status_of_proc -p $PID_FILE grafana grafana && exit 0 || exit $?
;;
restart|force-reload)
if [ -f "$PID_FILE" ]; then
$0 stop
sleep 1
fi
$0 start
;;
*)
log_success_msg "Usage: $0 {start|stop|restart|force-reload|status}"
exit 3
;;
esac
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