Provides the NrpeCheck base class for defining NRPE checks in python.

import sys
from nrpecheck import NrpeCheck

class HelloCheck(NrpeCheck):
    '''
    A simple example.
    '''
    def check(self):
        self.status = self.OK   # or self.WARNING or self.CRITICAL
        # message and perfdata can be single or multi-line.
        self.output = "Hello World"
        self.perfdata = sys.version
        
if __name__ == '__main__':
    HelloCheck().run()

This is not meant to provide working knowledge of configuring Nagios, just a quick reference for adding your own NRPE checks.

Edit /etc/nagios/nrpe.cfg or an appropriate config in /etc/nagios/nrpe.d/ (Ubuntu).

command[check_hello]=/usr/local/sbin/hellocheck.py

Restart the nagios-nrpe-server service (Ubuntu).

Edit an appropriate config in /etc/nagios3/conf.d/ (Ubuntu).

define service {
    service_description		nrpecheck test
    check_command		    check_nrpe_1arg!check_hello
    use				        generic-service
    notification_interval	0
}

Restart the nagios3 service (Ubuntu).