Generates Nagios config for Access Points

access_points.tpl

define hostgroup{
	hostgroup_name	access_points
	alias		Access Points
	}

{%- for ap in items %}
define host{
	use		generic-switch
	host_name	{{ ap.name }}
	alias		{{ ap.name }}
	address		{{ ap.ip }}
	hostgroups	access_points
	}

define service{
	use			generic-service
	host_name		{{ ap.name }}
	service_description	PING
	check_command		check_ping!200.0,20%!600.0,60%
	}

{%- endfor %}

access_points.txt

10.0.0.221 Linksys1
10.0.0.222 Linksys2
10.0.0.223 Cisco1
10.0.0.224 Linksys3
10.0.0.225 Linksys4
10.0.0.226 Linksys5
10.0.0.227 Linksys6
10.0.0.228 Linksys7
10.0.0.229 Linksys8
10.0.0.230 DLink1
10.0.0.231 DLink2
10.0.0.232 DLink3
10.0.0.233 DLink4
10.0.0.234 DLink5
10.0.0.235 Linksys9
10.0.0.236 DLink6
10.0.0.237 DLink7
10.0.0.238 DLink8
10.0.0.239 DLink9
10.0.0.240 DLink10

gen_config.py

#!/usr/bin/python

from jinja2 import Template, Environment, FileSystemLoader

env = Environment( loader = FileSystemLoader('./') )
template = env.get_template('access_points.tpl')

with open('access_points.txt') as f:
    lines = f.readlines()

items = []

for line in lines:
    args =line.rstrip().split(' ')
    items.append({'ip': args[0], 'name': args[1]})

print template.render(items=items)