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| {{Ebuild | | {{Person |
| |Summary=a utility for monitoring and managing daemons or similar programs running on a Unix system. | | |Geoloc=47.78129, 7.34687 |
| |CatPkg=app-admin/monit | | |Location name=Illzach |
| |Maintainer= | | |Blogs= |
| }} | | }} |
| [http://mmonit.com/monit/ Monit] is a utility for managing and monitoring processes, programs, files, directories and filesystems on a UNIX system.
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| == Installation ==
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| === Emerge ===
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| To install {{Package|app-admin/monit}}:
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| <console>###i##emerge monit</console>
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|
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| == Configuration ==
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| Config file of monit resides in <tt>/etc/monitrc</tt>. And there is a item to specify a config directory. Uncomment if needed.
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| {{File|name=/etc/monitrc|desc=config dir|body=
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| ## It is possible to include additional configuration parts from other files or
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| ## directories.
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| #
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| # include /etc/monit.d/*
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| #
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| }}
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|
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| === Users ===
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| Users added to the monit or users group will be able to manipulate monit through the web interface.
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|
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| <console>###i##gpasswd -a $USER monit</console>
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| <console>###i##gpasswd -a $USER users</console>
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| {{fancywarning|passwords can be streamed to monits web interface, disable it all together after it is setup}}
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| {{fancyimportant|for security purposes change this entry}}
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| {{file|name=/etc/monitrc|desc=|body=
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| allow admin:monit}}
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| == Boot Services ==
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| === inittab ===
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| {{fancynote|this is the preferred method to run monit}}
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| {{file|name=/etc/inittab|desc=auto restart monit in case of failure|body=
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| ca:12345:ctrlaltdel:/sbin/shutdown -r now
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| # Run monit in standard runlevels
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| mo:2345:respawn:/usr/bin/monit -Ic /etc/monitrc
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| # Used by /etc/init.d/xdm to control DM startup.
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| }}
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| to start monit immediately after changing inittab
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| <console>###i##telinit q</console>
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| === OpenRC ===
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| {{fancynote|prefer inittab method over rc services}}
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| To start the service at boot.
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| <console>###i##rc-update add monit default</console>
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| To start the service immediately.
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| <console>###i##/etc/init.d/monit start</console>
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| ==== Monitoring Monit ====
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| This hourly cron script will check to make sure monit has not crashed. As this uses pgrep, make sure to not name it monit.
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|
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| {{file|name=/etc/cron.hourly/moncheck|desc=|body=
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| #!/bin/bash
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| if ! pgrep monit >/dev/null;then
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| rc-service monit restart
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| fi
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| }}
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| == Pidfile Check ==
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| Monit relies upon pid files. For daemons that do not create a pidfile: a [http://mmonit.com/wiki/Monit/FAQ#pidfile work around] is needed.
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| == Examples ==
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| === Auto Restart Mysql ===
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| {{file|name=/etc/monitrc|desc=auto restart mysql|body=
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| check process mysql with pidfile /var/run/mysqld/mysqld.pid
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| start program = "/bin/bash -c 'rc-service mysql start'"
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| stop program = "/bin/bash -c 'rc-service mysql stop'"
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| }}
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|
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| == Web Interface ==
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| Navigate to http://localhost:2812/ & login using your edited configuration line or admin / monit if you have not changed it yet.
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| [[Category:Monitoring]]
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| {{EbuildFooter}}
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