fuel-plugin-contrail/deployment_scripts/puppet/modules/contrail/lib/puppet/parser/functions/get_last_ip.rb

40 lines
1.1 KiB
Ruby

# Copyright 2015 Mirantis, 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.
require 'ipaddr'
class IPAddr
# New method. Returns the previous ip addr
def prev
return self.clone.set(@addr - 1, @family)
end
end
module Puppet::Parser::Functions
newfunction(:get_last_ip, :type => :rvalue, :doc => <<-EOS
Returns last ip in subnet. ARG1 - subnet in CIDR notation (i.e. 192.168.1.0/24)
EOS
) do |args|
cidr = IPAddr.new(args[0])
prefix=args[0].split('/')[1]
netmask=IPAddr.new('255.255.255.255').mask(prefix)
broadcast=cidr.|(netmask.~())
return broadcast.prev.to_s
end
end