[rackspace] add get_image_details

lib/fog/rackspace/requests/servers/get_image_details.rb

@@ -0,0 +1,35 @@
+module Fog
+  module Rackspace
+    module Servers
+      class Real
+
+        # Get details for image by id
+        #
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        #     * 'id'<~Integer> - Id of the image
+        #     * 'name'<~String> - Name of the image
+        #     * 'serverId'<~Integer> - Id of server image was created from
+        #     * 'status'<~Integer> - Status of image
+        #     * 'updated'<~String> - Timestamp of last update
+        def get_image_details(image_id)
+          request(
+            :expects  => [200, 203],
+            :method   => 'GET',
+            :path     => "images/#{image_id}.json"
+          )
+        end
+
+      end
+
+      class Mock
+
+        def get_image_details(image_id)
+          raise MockNotImplemented.new("Contributions welcome!")
+        end
+
+      end
+    end
+  end
+end

lib/fog/rackspace/servers.rb

@@ -15,6 +15,7 @@ module Fog
         require 'fog/rackspace/requests/servers/delete_image'
         require 'fog/rackspace/requests/servers/delete_server'
         require 'fog/rackspace/requests/servers/get_flavor_details'
+        require 'fog/rackspace/requests/servers/get_image_details'
         require 'fog/rackspace/requests/servers/get_server_details'
         require 'fog/rackspace/requests/servers/list_addresses'
         require 'fog/rackspace/requests/servers/list_private_addresses'