Sensu SNMP Trap Extension
A SNMP trap listener for the Sensu client process. This check extension creates a SNMPv2 trap listener, loads & imports MIB files, and attempts to translate SNMP traps into Sensu check results. Sensu proxy clients are created for SNMP devices, using the device hostname as the client name, when a SNMP trap is received.
The SNMP trap to Sensu check result translation logic is currently being improved. Failure to translate the SNMP trap will produce a check result (and event) like the following (addresses have been redacted):
Inspiration
This SNMP trap extension was inspired by the work done by Toby Jackson on SNMPTrapHandler.
Installation
This extension requires Sensu version >= 0.26.
On a Sensu client machine.
sensu-install -e snmp-trap:0.0.19
Edit /etc/sensu/conf.d/extensions.json
to load it.
{
"extensions": {
"snmp-trap": {
"version": "0.0.19"
}
}
}
Configuration
Edit /etc/sensu/conf.d/snmp_trap.json
to change its configuration.
{
"snmp_trap": {
"community": "secret"
}
}
attribute | type | default | description |
---|---|---|---|
bind | string | 0.0.0.0 | IP to bind the SNMP trap listener to |
port | integer | 1062 | Port to bind the SNMP trap listener to |
community | string | "public" | SNMP community string to use |
mibs_dir | string | "/etc/sensu/mibs" | MIBs directory to import and load MIBs from |
imported_dir | string | "$TMPDIR/sensu_snmp_imported_mibs" | Directory to store imported MIB data in |
handlers | array | ["default"] | Handlers to specify in Sensu check results |