Monit configuration for check nginx and tomcat on CentOS servers and send alerts to AWS SES.

monitrc

set daemon  30
set logfile syslog
set idfile /var/.monit.id

####### MAIL CONF ######

set mailserver email-smtp.us-east-1.amazonaws.com port 465
    username "***************"
    password "***************"
    using SSLV3 with timeout 30 seconds

set mail-format { from: noreply@yourdomain.com
   subject: $SERVICE -- Proccess ID $EVENT
   message: Alert from $HOST

Incident date and time:    $DATE

$SERVICE service - (Process ID $EVENT) - $ACTION action was made

Event description:    $DESCRIPTION.

Regards,

Monit
}

set alert sysadmin_alert@yourdomain.com

####### MONIT UI ######

set httpd
    port 2812
    use address 0.0.0.0
    allow 127.0.0.1
##  If you use UI, set user and passwd with md5    
##    allow md5 /etc/httpd/htpasswd

####### SERVICES ######

check system $HOST
    if loadavg (5min) > 3 then alert
    if loadavg (15min) > 1 then alert
    if memory usage > 80% for 2 cycles then alert
    if swap usage > 20% for 4 cycles then alert
    if cpu usage (user) > 80% for 2 cycles then alert
    if cpu usage (system) > 20% for 2 cycles then alert
    if cpu usage (wait) > 80% for 2 cycles then alert
    if cpu usage > 200% for 4 cycles then alert

## nginx
check process nginx
  with pidfile /usr/local/nginx/logs/nginx.pid
  start program = "/etc/init.d/nginx start"
  stop program = "/etc/init.d/nginx stop"
  if failed host 127.0.0.1 port 80 then alert

## tomcat
check host 127.0.0.1 with address 127.0.0.1
  start program = "/etc/init.d/tomcat start"
  stop program = "/etc/init.d/tomcat stop"
  if failed port 8080 then alert
  if failed port 8080 for 5 cycles then restart

###### CHECK HOSTS #####

check host icarobichir with address icarobichir.com.br
    if failed port 80 protocol http with timeout 30 seconds then alert

## Includes
include /etc/monit.d/*