resolver Cookbook

Configures /etc/resolv.conf, unless the nameservers attribute is empty. Search will be excluded if empty.

Attributes

See attributes/default.rb for default values.

• node['resolver']['search'] - the search domain to use
• node['resolver']['nameservers'] - Required, an array of nameserver IP address strings; the default is an empty array, and the default recipe will not change resolv.conf if this is not set. See Usage.
• node['resolver']['sortlist'] - Optional sortlist specified by IP-address-netmaks pairs in a string format each pair separated by a space.
• node['resolver']['options'] - a hash of resolv.conf options. See Usage for examples.

Recipes

Use one of the recipes to set up /etc/resolv.conf for your system(s).

default

Configure /etc/resolv.conf based on attributes.

from_server_role

Configure /etc/resolv.conf's nameservers based on a search for a specific role (by Chef environment).

Usage

Using the default recipe, set the resolver attributes in a role, for example from my base.rb:

"resolver" => {
  "nameservers" => ["10.13.37.120", "10.13.37.40", "10.40.13.13"],
  "search" => "int.example.org",
  "sortlist" => "10.13.0.0/255.255.0.0 10.40.0.0/255.255.0.0",
  "options" => {
    "timeout" => 2, "rotate" => nil
  }
}

The resulting /etc/resolv.conf will look like:

search int.example.org
nameserver 10.13.37.120
nameserver 10.13.37.40
nameserver 10.40.13.13
sortlist 10.0.0.0/255.0.0.0 10 10.40.0.0/255.255.0.0
options timeout:2 rotate

Using the from_server_role recipe, assign the node['resolver']['server_role'] attribute's role to a system that is the DNS resolver in the same Chef environment.

License & Authors

• Author:: Joshua Timberman (joshua@opscode.com)

Copyright 2009-2012, Opscode, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.