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- ###############################################################################
- ## 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 and 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):
- #
- set daemon 120 # check services at 2-minute intervals
- # with start delay 240 # optional: delay the first check by 4-minutes (by
- # # default Monit check immediately after Monit start)
- #
- #
- ## 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 standalone log file instead, specify the full path to the log file
- #
- # set logfile syslog facility log_daemon
- set logfile /var/log/monit.log
- #
- #
- ## Set the location of the Monit id file which stores the unique id for the
- ## Monit instance. The id is generated and stored on first Monit start. By
- ## default the file is placed in $HOME/.monit.id.
- #
- # set idfile /var/.monit.id
- set idfile /var/lib/monit/id
- #
- ## Set the location of the Monit state file which saves monitoring states
- ## on each cycle. By default the file is placed in $HOME/.monit.state. If
- ## the state file is stored on a persistent filesystem, Monit will recover
- ## the monitoring state across reboots. If it is on temporary filesystem, the
- ## state will be lost on reboot which may be convenient in some situations.
- #
- set statefile /var/lib/monit/state
- #
- ## Set the list of mail servers for alert delivery. Multiple servers may be
- ## specified using a comma separator. If the first mail server fails, Monit
- # will use the second mail server in the list and so on. By default Monit uses
- # port 25 - it is possible to override this with the PORT option.
- #
- # set mailserver mail.bar.baz, # primary mailserver
- # backup.bar.baz port 10025, # backup mailserver on port 10025
- # localhost # fallback relay
- #
-
- set mailserver localhost
-
- ## By default Monit will drop alert events if no mail servers are available.
- ## If you want to keep the alerts for 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/lib/monit/events # set the base directory where events will be stored
- slots 100 # optionally limit the queue size
- #
- #
- ## Send status and events to M/Monit (for more informations about M/Monit
- ## see http://mmonit.com/). By default Monit registers credentials with
- ## M/Monit so M/Monit can smoothly communicate back to Monit and you don't
- ## have to register Monit credentials manually in M/Monit. It is possible to
- ## disable credential registration using the commented out option below.
- ## Though, if safety is a concern we recommend instead using https when
- ## communicating with M/Monit and send credentials encrypted.
- #
- # set mmonit http://monit:monit@192.168.1.10:8080/collector
- # # and register without credentials # Don't register credentials
- #
- #
- ## Monit by default uses the following format for alerts if the the mail-format
- ## statement is missing::
- ## --8<--
- ## set mail-format {
- ## from: monit@$HOST
- ## subject: monit alert -- $EVENT $SERVICE
- ## message: $EVENT Service $SERVICE
- ## Date: $DATE
- ## Action: $ACTION
- ## Host: $HOST
- ## 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, use:
- #
- # set mail-format { from: monit@foo.bar }
- #
-
- set mail-format {
- from: monit@{{ domain }}
- subject: monit alert -- $EVENT $SERVICE
- message: $EVENT Service $SERVICE
-
- Date: $DATE
- Action: $ACTION
- Host: $HOST
- Description: $DESCRIPTION
-
- Your faithful employee,
- Monit from Sovereign
- }
-
- #
- ## You can set alert recipients 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
- #
-
- set alert {{ admin_email }}
-
- #
- ## Monit has an embedded web server which can be used to view status of
- ## services monitored and manage services from a web interface. See the
- ## Monit Wiki if you want to enable SSL for the web server.
- #
-
- set httpd port 2812 and
- use address localhost # only accept connection from localhost
- allow localhost # allow localhost to connect to the server and
- allow {{ monit_admin_username }}:{{ monit_admin_password }}
-
- # allow @monit # allow users of group 'monit' to connect (rw)
- # allow @users readonly # allow users of group 'users' to connect readonly
- #
- ###############################################################################
- ## 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 swap usage > 25% then alert
- # if cpu usage (user) > 70% then alert
- # if cpu usage (system) > 30% then alert
- # if cpu usage (wait) > 20% then alert
- #
- #
- ## Check if a file exists, checksum, permissions, uid and gid. In addition
- ## to alert recipients in the global section, customized alert can be sent to
- ## additional recipients by specifying a local alert handler. The service may
- ## be grouped using the GROUP option. More than one group can be specified by
- ## repeating the 'group name' statement.
- #
- # 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 is 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" with timeout 60 seconds
- # 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 "/somefile.html"
- # 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 filesystem 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 filesystem 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" as uid dba and gid dba
- #
- #
- ## 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 availability by issuing a ping test and check the
- ## content of a response from a web server. Up to three pings are sent and
- ## connection to a port and an 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
- #
- #
- ###############################################################################
- ## Includes
- ###############################################################################
- ##
- ## It is possible to include additional configuration parts from other files or
- ## directories.
- #
- include /etc/monit/conf.d/*
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