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Add monit with Apache and MySQL service settings.

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1 parent 5414794 commit d04810abc0b0393372c4b209481080d89b275150 @tristandunn committed Sep 22, 2010
Showing with 259 additions and 0 deletions.
  1. +230 −0 assets/monit/configuration
  2. +6 −0 assets/monit/script
  3. +2 −0 install.rb
  4. +21 −0 packages/monit.rb
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230 assets/monit/configuration
@@ -0,0 +1,230 @@
+###############################################################################
+## Monit control file
+###############################################################################
+##
+## Comments begin with a '#' and extend through the end of the line. Keywords
+## are case insensitive. All path's MUST BE FULLY QUALIFIED, starting with '/'.
+##
+## Below you will find examples of some frequently used statements. For
+## information about the control file, a complete list of statements and
+## options please have a look in the monit manual.
+##
+##
+###############################################################################
+## Global section
+###############################################################################
+##
+## Start monit in the background (run as a daemon) and check services at
+## 2-minute intervals.
+
+set daemon 120
+
+## Set syslog logging with the 'daemon' facility. If the FACILITY option is
+## omitted, monit will use 'user' facility by default. If you want to log to
+## a stand alone log file instead, specify the path to a log file
+
+set logfile syslog facility log_daemon
+
+## Set the list of mail servers for alert delivery. Multiple servers may be
+## specified using comma separator. By default monit uses port 25 - this
+## is possible to override with the PORT option.
+#
+# set mailserver mail.bar.baz, # primary mailserver
+# backup.bar.baz port 10025, # backup mailserver on port 10025
+# localhost # fallback relay
+#
+#
+## By default monit will drop alert events if no mail servers are available.
+## If you want to keep the alerts for a later delivery retry, you can use the
+## EVENTQUEUE statement. The base directory where undelivered alerts will be
+## stored is specified by the BASEDIR option. You can limit the maximal queue
+## size using the SLOTS option (if omitted, the queue is limited by space
+## available in the back end filesystem).
+#
+# set eventqueue
+# basedir /var/monit # set the base directory where events will be stored
+# slots 100 # optionaly limit the queue size
+#
+#
+## Monit by default uses the following alert mail format:
+##
+## --8<--
+## From: monit@$HOST # sender
+## Subject: monit alert -- $EVENT $SERVICE # subject
+##
+## $EVENT Service $SERVICE #
+## #
+## Date: $DATE #
+## Action: $ACTION #
+## Host: $HOST # body
+## Description: $DESCRIPTION #
+## #
+## Your faithful employee, #
+## monit #
+## --8<--
+##
+## You can override this message format or parts of it, such as subject
+## or sender using the MAIL-FORMAT statement. Macros such as $DATE, etc.
+## are expanded at runtime. For example, to override the sender:
+#
+# set mail-format { from: monit@foo.bar }
+#
+#
+## You can set alert recipients here whom will receive alerts if/when a
+## service defined in this file has errors. Alerts may be restricted on
+## events by using a filter as in the second example below.
+#
+# set alert sysadm@foo.bar # receive all alerts
+# set alert manager@foo.bar only on { timeout } # receive just service-
+# # timeout alert
+#
+#
+## Monit has an embedded web server which can be used to view status of
+## services monitored, the current configuration, actual services parameters
+## and manage services from a web interface.
+#
+# set httpd port 2812 and
+# use address localhost # only accept connection from localhost
+# allow localhost # allow localhost to connect to the server and
+# allow admin:monit # require user 'admin' with password 'monit'
+#
+#
+###############################################################################
+## Services
+###############################################################################
+##
+## Check general system resources such as load average, cpu and memory
+## usage. Each test specifies a resource, conditions and the action to be
+## performed should a test fail.
+#
+# check system myhost.mydomain.tld
+# if loadavg (1min) > 4 then alert
+# if loadavg (5min) > 2 then alert
+# if memory usage > 75% then alert
+# if cpu usage (user) > 70% then alert
+# if cpu usage (system) > 30% then alert
+# if cpu usage (wait) > 20% then alert
+#
+#
+## Check a file for existence, checksum, permissions, uid and gid. In addition
+## to alert recipients in the global section, customized alert will be sent to
+## additional recipients by specifying a local alert handler. The service may
+## be grouped using the GROUP option.
+#
+# check file apache_bin with path /usr/local/apache/bin/httpd
+# if failed checksum and
+# expect the sum 8f7f419955cefa0b33a2ba316cba3659 then unmonitor
+# if failed permission 755 then unmonitor
+# if failed uid root then unmonitor
+# if failed gid root then unmonitor
+# alert security@foo.bar on {
+# checksum, permission, uid, gid, unmonitor
+# } with the mail-format { subject: Alarm! }
+# group server
+#
+#
+## Check that a process is running, in this case Apache, and that it respond
+## to HTTP and HTTPS requests. Check its resource usage such as cpu and memory,
+## and number of children. If the process is not running, monit will restart
+## it by default. In case the service was restarted very often and the
+## problem remains, it is possible to disable monitoring using the TIMEOUT
+## statement. This service depends on another service (apache_bin) which
+## is defined above.
+#
+# check process apache with pidfile /usr/local/apache/logs/httpd.pid
+# start program = "/etc/init.d/httpd start"
+# stop program = "/etc/init.d/httpd stop"
+# if cpu > 60% for 2 cycles then alert
+# if cpu > 80% for 5 cycles then restart
+# if totalmem > 200.0 MB for 5 cycles then restart
+# if children > 250 then restart
+# if loadavg(5min) greater than 10 for 8 cycles then stop
+# if failed host www.tildeslash.com port 80 protocol http
+# and request "/monit/doc/next.php"
+# then restart
+# if failed port 443 type tcpssl protocol http
+# with timeout 15 seconds
+# then restart
+# if 3 restarts within 5 cycles then timeout
+# depends on apache_bin
+# group server
+#
+#
+## Check device permissions, uid, gid, space and inode usage. Other services,
+## such as databases, may depend on this resource and an automatically graceful
+## stop may be cascaded to them before the filesystem will become full and data
+## lost.
+#
+# check device datafs with path /dev/sdb1
+# start program = "/bin/mount /data"
+# stop program = "/bin/umount /data"
+# if failed permission 660 then unmonitor
+# if failed uid root then unmonitor
+# if failed gid disk then unmonitor
+# if space usage > 80% for 5 times within 15 cycles then alert
+# if space usage > 99% then stop
+# if inode usage > 30000 then alert
+# if inode usage > 99% then stop
+# group server
+#
+#
+## Check a file's timestamp. In this example, we test if a file is older
+## than 15 minutes and assume something is wrong if its not updated. Also,
+## if the file size exceed a given limit, execute a script
+#
+# check file database with path /data/mydatabase.db
+# if failed permission 700 then alert
+# if failed uid data then alert
+# if failed gid data then alert
+# if timestamp > 15 minutes then alert
+# if size > 100 MB then exec "/my/cleanup/script"
+#
+#
+## Check directory permission, uid and gid. An event is triggered if the
+## directory does not belong to the user with uid 0 and gid 0. In addition,
+## the permissions have to match the octal description of 755 (see chmod(1)).
+#
+# check directory bin with path /bin
+# if failed permission 755 then unmonitor
+# if failed uid 0 then unmonitor
+# if failed gid 0 then unmonitor
+#
+#
+## Check a remote host network services availability using a ping test and
+## check response content from a web server. Up to three pings are sent and
+## connection to a port and a application level network check is performed.
+#
+# check host myserver with address 192.168.1.1
+# if failed icmp type echo count 3 with timeout 3 seconds then alert
+# if failed port 3306 protocol mysql with timeout 15 seconds then alert
+# if failed url
+# http://user:password@www.foo.bar:8080/?querystring
+# and content == 'action="j_security_check"'
+# then alert
+
+check process apache2 with pidfile /var/run/apache2.pid
+ group server
+ start program = "/etc/init.d/apache2 start"
+ stop program = "/etc/init.d/apache2 stop"
+ if cpu > 80% for 5 cycles then restart
+ if totalmem > 256.0 MB for 5 cycles then restart
+ if children > 250 then restart
+ if 5 restarts within 5 cycles then timeout
+
+check process mysql with pidfile /var/run/mysqld/mysqld.pid
+ group database
+ start program = "/etc/init.d/mysql start"
+ stop program = "/etc/init.d/mysql stop"
+ if failed host 127.0.0.1 port 3306 then restart
+ if 5 restarts within 5 cycles then timeout
+
+###############################################################################
+## Includes
+###############################################################################
+##
+## It is possible to include additional configuration parts from other files or
+## directories.
+#
+# include /etc/monit.d/*
+#
+#
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6 assets/monit/script
@@ -0,0 +1,6 @@
+# Configuration for monit initscript
+# Sourced by /etc/init.d/monit
+# Installed at /etc/default/monit by maintainer scripts
+
+# You must set this variable to for monit to start
+startup=1
View
2 install.rb
@@ -2,6 +2,7 @@
require 'packages/database'
require 'packages/essential'
require 'packages/gems'
+require 'packages/monit'
require 'packages/passenger'
require 'packages/ruby'
require 'packages/scm'
@@ -11,6 +12,7 @@
requires :apache
requires :database
requires :gems
+ requires :monit
requires :passenger
requires :ruby
requires :scm
View
21 packages/monit.rb
@@ -0,0 +1,21 @@
+MONIT_CONFIG_PATH = File.expand_path(File.join(File.dirname(__FILE__), '..', 'assets', 'monit', 'configuration'))
+MONIT_SCRIPT_PATH = File.expand_path(File.join(File.dirname(__FILE__), '..', 'assets', 'monit', 'script'))
+
+package :monit, :provides => :monitoring do
+ describe 'Monitor processes, files, devices and remote systems'
+ apt 'monit' do
+ if File.file?(MONIT_SCRIPT_PATH) && File.file?(MONIT_CONFIG_PATH)
+ config = File.open(MONIT_CONFIG_PATH).read.gsub("'", "'\\\\''").gsub("\n", '\n')
+ script = File.open(MONIT_SCRIPT_PATH).read.gsub("'", "'\\\\''").gsub("\n", '\n')
+
+ post :install,
+ "echo -e '#{script}' > /etc/default/monit",
+ "echo -e '#{config}' >/etc/monit/monitrc"
+ "monit"
+ end
+ end
+
+ verify do
+ has_executable 'monit'
+ end
+end

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