Using Nagios to monitor Puppet and Monit

I am assuming that you have a Nagios server already running and NRPE installed on the systems running Puppet and Monit.

Check to make sure Puppet is running:
checkcommands.cfg:# 'check_puppetd' command definition
checkcommands.cfg:   command_name       check_puppetd
checkcommands.cfg:   command_line       $USER1$/check_procs -c 1:1 -C /usr/sbin/puppetd

Check to make sure Monit is running: (Notice full name to avoid 'monitor' processes)
checkcommands.cfg:# 'check_monit' command definittion
checkcommands.cfg:   command_name       check_monit
checkcommands.cfg:   command_line       $USER1$/check_procs -c 1:1 -C /usr/local/bin/monit

or
in checkcommands.cfg
define command{
  command_name  check_remote_proc
  command_line  $USER1$/check_nrpe -H $HOSTADDRESS$ -t 30 -c check_proc_$ARG1$
}

in services.cfg:
define service{
        use                             prod-tmpl
        host_name                  puppet1
        service_description             puppetd
        check_command                   check_remote_proc!puppetd
}


define service{
        use                             prod-tmpl
        host_name                  puppet1
        service_description             monit
        check_command                   check_remote_proc!monit
}