Puppet Function: cidr_zone

Defined in:
lib/puppet/parser/functions/cidr_zone.rb
Function type:
Ruby 3.x API

Overview

cidr_zone() ⇒ Any

Returns an array suitable for passing to a defined type to create zone files. Arguments are a base subnet and the CIDR number, example 10.1.0.0/22 This function uses the Net::Addr gem, gem install netaddr We specifically ask for the address given to be split into class C subnets in the future it may be extended to deal with other CIDR classes.

For example:

args[0] = 10.1.0.0/22 which returns ["10.0.0.0/24", "10.1.1.0/24", "10.1.2.0/24", "10.1.3.0/24"]

Returns:

  • (Any) 


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# File 'lib/puppet/parser/functions/cidr_zone.rb', line 2

newfunction(:cidr_zone, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args|
  Returns an array suitable for passing to a defined type to create zone files.
  Arguments are a base subnet and the CIDR number, example 10.1.0.0/22
  This function uses the Net::Addr gem, gem install netaddr
  We specifically ask for the address given to be split into class C subnets
  in the future it may be extended to deal with other CIDR classes.

  For example:

      args[0] = 10.1.0.0/22 which returns ["10.0.0.0/24", "10.1.1.0/24", "10.1.2.0/24", "10.1.3.0/24"]

  ENDHEREDOC
  require "netaddr"
  begin
    NetAddr::CIDR.create("#{args[0]}").subnet(:Bits => 24)
  end
end