Pull in att-cloud swift cookbook (forked from rcbops)

Change-Id: Icdee121c28a2fce0261b567eceaab4d46fd0b64c

libraries/ip_utils.rb

@@ -0,0 +1,45 @@
+#
+# Cookbook Name:: swift
+# Library:: ip_utils
+#
+# Copyright 2013, ATT 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.
+#
+# Author: Alan Meadows <alan.meadows@gmail.com>
+#
+
+require "ipaddr"
+
+module IPUtils
+  def locate_ip_in_cidr(network, node)
+    Chef::Log.debug("Searching for ip within #{network} on node #{node.name}")
+    net = IPAddr.new(network)
+    node["network"]["interfaces"].each do |interface|
+      if interface[1].has_key?("addresses") then
+        interface[1]["addresses"].each do |k,v|
+          if v["family"] == "inet6" or (v["family"] == "inet" and v["prefixlen"] != "32") then
+            addr=IPAddr.new(k)
+            if net.include?(addr) then
+              return k
+            end
+          end
+        end
+      end
+    end
+
+    error = "Can't find address within network #{network} for node #{node.name}"
+    Chef::Log.error(error)
+    raise error
+  end
+end