Fresh Install monit from 0 Centos 6.5

monit

#!/bin/bash
#
# Init file for Monit system monitor
# Written by Stewart Adam <[email protected]>
# based on script by Dag Wieers <[email protected]>.
#
# chkconfig: - 98 02
# description: Utility for monitoring services on a Unix system
#
# processname: monit
# config: /etc/monit.conf
# pidfile: /var/run/monit.pid
# location : /etc/init.d/monit
# Short-Description: Monit is a system monitor

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

### Default variables
CONFIG="/etc/monit.conf"
pidfile="/var/run/monit.pid"
prog="monit"

# Check if requirements are met
[ -x /usr/local/bin/monit ] || exit 1
[ -r "$CONFIG" ] || exit 1

RETVAL=0

start() {
        echo -n $"Starting $prog: "
        /usr/local/bin/monit -c "$CONFIG"
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog
        return $RETVAL
}

stop() {
        echo -n $"Shutting down $prog: "
        killproc -p ${pidfile}
        RETVAL=$?
        echo
        [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog
        return $RETVAL
}

restart() {
        stop
        start
}

reload() {
        echo -n $"Reloading $prog: "
        /usr/local/bin/monit -c "$CONFIG" reload
        RETVAL=$?
        echo
        return $RETVAL
}

case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  restart)
        restart
        ;;
  reload)
        reload
        ;;
  condrestart)
        [ -e /var/lock/subsys/$prog ] && restart
        RETVAL=$?
        ;;
  status)
        status $prog
        RETVAL=$?
        ;;
  *)
        echo $"Usage: $0 {start|stop|restart|reload|condrestart|status}"
        RETVAL=1
esac

exit $RETVAL

monit.md

---

Follow http://clasense4.wordpress.com/2012/08/27/monit-how-to-playing-with-monit/ untill you're good

wget http://mmonit.com/monit/dist/binary/5.10/monit-5.10-linux-x64.tar.gz
tar xfz monit-5.10-linux-x64.tar.gz
cd monit-5.10
cp conf/monitrc /etc/monit.conf
cp bin/monit /usr/local/bin/
vim /etc/init.d/monit #below
chmod u+x /etc/init.d/monit
sudo /sbin/chkconfig --add monit
sudo chkconfig --levels 235 monit on
vim /etc/monit.conf
# uncomment "include /etc/monit/conf.d/*"
mkdir /etc/monit.d/
vim /etc/monit.d/localhost
service monit start

monit_tricks.md

Configuration (/etc/monit.d/localhost/)

Basic

set daemon 20   # TIMEOUT 20 Seconds
set logfile syslog facility log_daemon  # LOGGING

set mailserver smtp.gmail.com port 587
         username "[email protected]" password "password"
         using tlsv1
         with timeout 30 seconds

check system domain.tld
    if loadavg (1min) > 4 then alert
    if loadavg (5min) > 3 then alert
    if memory usage > 75% then alert
    if cpu usage (user) > 68% then alert
    if cpu usage (system) > 30% then alert
    if cpu usage (wait) > 20% then alert

Nginx

check process nginx with pidfile /var/run/nginx.pid
	start program = "/etc/init.d/nginx start"
	stop  program = "/etc/init.d/nginx stop"
	if failed port 80 protocol http for 2 cycles then restart
	if mem usage > 80% for 5 cycles then restart

Laravel Artisan Command

check process queue
         matching "queue:work"
         start = "/bin/bash -c 'cd /var/www/p2tk-crm && /usr/bin/php artisan queue:work --daemon &'"
         if does not exist then start

MySQL

check process mysql
	matching "mysqld"
	start program = "/etc/init.d/mysql start"
	stop  program = "/etc/init.d/mysql stop"
	if does not exist then start

PHP-FPM

check process php-fpm with pidfile /var/run/php-fpm/php-fpm.pid
	start program = "/etc/init.d/php-fpm start"
	stop  program = "/etc/init.d/php-fpm stop"
	if mem usage > 80% for 5 cycles then restart