View source for M/Monit

__NOTOC__
=== How to install M/Monit from sources ===
* Download Monit tar file from tildeslash
 wget http://www.tildeslash.com/monit/dist/monit-4.10.1.tar.gz
* Unpack and install
 tar zxvf monit-4.10.1.tar.gz
 cd monit-4.10.1
 ./configure
 make
 make install

=== How to setup M/Monit ===
* Open <tt>/etc/monit.conf</tt> and set/uncomment this values:
** Run Monit as daemon
 set daemon 120
:* Send logs to /var/log/messages
 set logfile syslog facility log_daemon
:* Setup Monit Web Service with authentication from anywhere
 set httpd port 2812 and
 allow user:password
:* Read configuration files for each service
 include /etc/monit.d/*
* Open <tt>/etc/httpd/conf/httpd.conf</tt> and add the following lines:
 # Avoid Monit activity to be logged on Apache log
 SetEnvIf Request_URI "^/monit/token$" dontlog
 CustomLog logs/access_log common env=!dontlog
* Open port on iptables to watch monit on TCP port 2812
 iptables -A INPUT -p tcp --dport 2812 -j ACCEPT


=== How to configure M/Monit services ===
==== Apache ====
'''File:''' <tt>/etc/monit.d/httpd.conf</tt>
 check process httpd with pidfile /var/run/httpd.pid
   group apache
   start program = "/sbin/service httpd start"
   stop program = "/sbin/service httpd stop"
   if failed port host 127.0.0.1 port 80 protocol http
     and request "/api/restaurant/id"
   then restart
   if 5 restarts within 5 cycles then timeout

==== MySQL ====
'''File:''' <tt>/etc/monit.d/mysqld.conf</tt>
 check process mysql with pidfile /var/run/mysqld/mysqld.pid
   group mysql
   start program = "/sbin/service mysqld start"
   stop program = "/sbin/service mysqld stop"
   if failed host 127.0.0.1 port 3306 protocol mysql
     then restart
   if 5 restarts within 5 cycles then timeout

==== Actionqueue ====
'''File:''' <tt>/etc/monit.d/actionqueue.conf</tt>
 check process actionqueue with pidfile /var/run/actionqueue.pid
   group root
   start program = "/sbin/service actionqueue start"
   stop program = "/sbin/service actionqueue stop"
   if failed host 127.0.0.1 port 8443
     then restart
   if 5 restarts within 5 cycles then timeout

=== How to setup and start M/Monit service ===
==== Boot from init.d ====
* Register the service to start on boot
 chkconfig monit on
* Start service
 service monit start

==== Respawnning with inittab ====
* Append <tt>/etc/inittab</tt> to add:
 mo:2345:respawn:/usr/bin/monit -Ic /etc/monit.conf
* Start monit
 init q