refactor image lookup code.

lib/fog/google/models/compute/image.rb

@@ -12,6 +12,37 @@ module Fog
         attribute :creation_timestamp, :aliases => 'creationTimestamp'
         attribute :description
         attribute :preferred_kernel, :aliases => 'preferredKernel'
+        attribute :project
+
+        def reload
+          requires :name
+
+          data = {}
+          if project
+            data = service.get_image(name, project).body
+          elsif
+            [ 'google', 'debian-cloud', 'centos-cloud' ].each do |owner|
+              begin
+                data = service.get_image(name, owner).body
+                data[:project] = owner
+              rescue
+              end
+            end
+          end
+          self.merge_attributes(data)
+
+          self
+        end
+
+        def save
+          requires :name
+
+          reload
+        end
+
+        def resource_url
+          "#{self.project}/global/images/#{name}"
+        end
 
       end
     end

lib/fog/google/requests/compute/insert_server.rb

@@ -20,14 +20,9 @@ module Fog
                           zone_name, machine_name, metadata,
                           network_name=@default_network)
 
-          # We need to get the right owner for an image.
-          owners = [ @project, 'google', 'debian-cloud', 'centos-cloud' ]
-          @image_url = @api_url + "google/global/images/#{image_name}"
-          for owner in owners do
-            if self.get_image(image_name, owner).status == 200
-              @image_url = @api_url + owner + "/global/images/#{image_name}"
-            end
-          end
+          # We don't know the owner of the image.
+          image = images.create({:name => image_name})
+          @image_url = @api_url + image.resource_url
 
           api_method = @compute.instances.insert
           parameters = {