Difference between revisions of "Monit"

__NOTOC__

= M/Monit =

== Installation ==

# Download Monit tar file from tildeslash

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wget http://www.tildeslash.com/monit/dist/monit-4.10.1.tar.gz

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# Unpack and install

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tar zxvf monit-4.10.1.tar.gz

cd monit-4.10.1

./configure

make

make install

</nowiki></pre>

== Configuration ==

# Open `/etc/monit.conf` and set/uncomment this values:

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# 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/*

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# Open `/etc/httpd/conf/httpd.conf` and add the following lines:

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# Avoid Monit activity to be logged on Apache log

SetEnvIf Request_URI "^/monit/token$" dontlog

CustomLog logs/access_log common env=!dontlog

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# Open port on iptables to watch monit on TCP port 2812

{{

iptables -A INPUT -p tcp --dport 2812 -j ACCEPT

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== Configure services ==

=== Apache ===

'''File:''' `/etc/monit.d/httpd.conf`

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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

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=== MySQL ===

'''File:''' `/etc/monit.d/mysqld.conf`

<pre><nowiki>

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

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=== xmlBlaster ===

'''File:''' `/etc/monit.d/xmlblaster.conf`

<pre><nowiki>

check process xmlblaster with pidfile /var/run/xmlblaster.pid

group root

start program = "/sbin/service xmlblaster start"

stop program = "/sbin/service xmlblaster stop"

if failed host iron.bashlinux.com port 3412 protocol http

and request "/status.html" then restart

if 5 restarts within 5 cycles then timeout

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=== Actionqueue ===

'''File:''' `/etc/monit.d/actionqueue.conf`

<pre><nowiki>

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

</nowiki></pre>

== Startup ==

=== Boot init from SYSV init.d ===

# Register the service to start on boot

<pre><nowiki>

chkconfig monit on

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# Start service

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service monit start

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=== Respawnning with inittab ===

# Append {{/etc/inittab}} to add:

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mo:2345:respawn:/usr/bin/monit -Ic /etc/monit.conf

</nowiki></pre>

# Start monit

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init q

</nowiki></pre>