A first take on configuring check_mk to invoke check_mk_agent on minions over salt publish. See: http://saltstack.org and http://mathias-kettner.com/check_mk.html

check_mk.py

#! /usr/bin/env python
'''Support for running check_mk_agent over salt
  /srv/salt/_modules/check_mk.py'''
import os
import salt.utils
from salt.exceptions import SaltException

def __virtual__():
    ''' Only load the module if check-mk-agent is installed '''
    if os.path.exists('/usr/bin/check_mk_agent'):
        return 'check_mk'
    return False

def agent():
    ''' Return the output of check_mk_agent '''
    return __salt__['cmd.run']('/usr/bin/check_mk_agent')

gistfile1.txt

salt \* saltutil.sync_modules

gistfile2.txt

$ sudo -u nagios check_mk -v -II web001
Removing 1 checks from /var/lib/check_mk/autochecks/tcp_conn_stats-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/ntp.time-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/uptime-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/kernel.util-2013-05-21_18.52.27.mk.
Removing 2 checks from /var/lib/check_mk/autochecks/df-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/mem.used-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/mem.vmalloc-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/cpu.loads-2013-05-21_18.52.27.mk.
Removing 3 checks from /var/lib/check_mk/autochecks/kernel-2013-05-21_18.52.27.mk.
Removing 2 checks from /var/lib/check_mk/autochecks/ps.perf-2013-05-21_18.52.27.mk.
Removing 1 checks from /var/lib/check_mk/autochecks/cpu.threads-2013-05-21_18.52.27.mk.
Removing 2 checks from /var/lib/check_mk/autochecks/mounts-2013-05-21_18.52.27.mk.
Skipping web001, not an snmp host
Calling external programm sudo /usr/bin/salt-call publish.publish web001 check_mk.agent -l quiet | sed 1d
cpu.loads         1 new checks
cpu.threads       1 new checks
df                2 new checks
web001: Invalid output from agent or invalid configuration: list index out of range
kernel            3 new checks
kernel.util       1 new checks
web001: Invalid output from agent or invalid configuration: 'index'
mem.used          1 new checks
mem.vmalloc       1 new checks
mounts            2 new checks
ntp.time          1 new checks
ps.perf           2 new checks
tcp_conn_stats    1 new checks
uptime            1 new checks

main.mk

# bottom of /etc/check_mk/main.mk

all_hosts += [
  "web001|vbox",
]

datasource_programs += [
  ( "sudo /usr/bin/salt-call publish.publish <HOST> check_mk.agent -l quiet | sed 1d ", ['salt'], ALL_HOSTS ),
]

peers.conf

# /etc/salt/minion.d/peers.conf
peer:
  icinga:
    - check_mk.agent

sudoers

Cmnd_Alias SALT_PUBLISH = /usr/bin/salt-call
nagios ALL=NOPASSWD: SALT_PUBLISH