[monit-dev] Feature suggestion: SNMP support in Monit

[Lior Okman]

Hi,

With regards to the MIB I intend to implement in Monit, attached is the first draft with initial support for monitored processes and files, that doesn't yet include any of the notification types in it.

See the output of the "monit status" command and the output of an example snmpwalk against that same monit process. 

The MIB itself isn't useful without an IANA assigned private enterprise number [1]. Is it possible for somebody from Tildeslash to contact IANA and get a private enterprise number assigned for Monit by filling out this form: http://pen.iana.org/pen/PenApplication.page ? There's no fee involved, and while I could do it, I think that the contact details for a private enterprise number that is registered for Monit should be for Tildeslash and not myself. I'm currently using a made-up number, which I've replaced with XXXXXXXX in the attached MIB, but in order to actually use this feature a real number must be registered.

Comments?

Regards,

Lior

[1] - http://www.iana.org/assignments/enterprise-numbers 

---------- Forwarded message ----------
From: Lior Okman
Date: Fri, Sep 2, 2011 at 7:47 AM
Subject: Feature suggestion: SNMP support in Monit

Hi,

It seems to me that Monit is missing the ability to be queried via SNMP about the state of its monitored services and use SNMP traps or notifications as alerts.

I'm going to develop support for this, using Net-SNMP's AgentX support with Monit. Monit would become an SNMP subagent, and if the Net-SNMP snmpd daemon is running on the same host then the SNMP support would be enable-able. 

The RC file would gain one global "set" directive: "set snmp", that would enable SNMP support in Monit. Setting just this would allow Monit to be queried about the services it currently has monitored.

Additionally, I am going to change the "alert" statement, so that in addition to an email you can set a trap or notification OID, and if that alert is to be triggered, then an appropriate SNMP trap/notification would be sent. Something along the lines of:

ALERT TRAP oid [ [NOT] {events}] [REMINDER number]

Since Monit would be a subagent, the SNMP specific configuration (community strings, security settings, etc) would be configured in the local SNMPD daemon configuration file.

I still haven't got a MIB - more about this later.

Comments?

Regards,

Lior

example-snmpwalk.txt
Description: Text document

MONIT.mib
Description: Binary data

monit-status.txt
Description: Text document