Zenoss and DHCP

• http://community.zenoss.org/thread/18085
• http://dev.zenoss.org/trac/ticket/4105

zendmd
dev=find('hp7410.skills-1st.co.uk')
print dev.id
print dev.title
print dev.manageIp

Check dns resolution

Python script that checks dns lookups against the id of a device and it's manageIp field.

#!/usr/bin/env python
# Author:               Jane Curry
# Date:                 10th July 2012
# Copyright:            Skills 1st Ltd
# Description:          Check dns resolution has not changed
#                       expects dev/id and dev/manageIp as input parameters
#
# Updates:
#
 
# Perform initial imports.
import os, sys, getopt
import logging
 
# Perform Zenoss specific imports.
import Globals
from Products.ZenUtils.ZenScriptBase import ZenScriptBase
from transaction import commit
 
if len(sys.argv) < 3:
  sys.exit('Usage: %s  dev/id dev/manageIp ' % sys.argv[0])
 
name=sys.argv[1]
#print 'name is' + name
ip=sys.argv[2].strip()
 
# dig +short simply returns one or more IP addresses that DNS resolves for the supplied name
nameres = os.popen('dig +short %s' % (name) )
if ip in (i.strip() for i in nameres.readlines() ):
  print 'No DNS change - OK | statusvar=0'
  sys.exit(0)
else:
  print 'Change in DNS - WARNING | statusvar=1'
# Get first response again from dig
  nameres = os.popen('dig +short %s' % (name) )
  dnsip = nameres.readline().strip()
  dmd = ZenScriptBase(connect=True).dmd
  dev=dmd.Devices.findDevice(name)
  dev.setManageIp(dnsip)
  commit()
  sys.exit(1)