Changes to the security group handling:

* CreateSecurityGroup now includes the group id in the reply, this
  patch makes the code store this
* The patch also changes the delete call to use the group id if
  present (since you must use the id when deleting VPC groups)

lib/fog/aws/models/compute/security_group.rb

@@ -1,5 +1,8 @@
 require 'fog/core/model'
 
+# XXX
+require 'pp'
+
 module Fog
   module Compute
     class AWS
@@ -101,7 +104,11 @@ module Fog
         def destroy
           requires :name
 
-          connection.delete_security_group(name)
+          if group_id.nil?
+            connection.delete_security_group(name)
+          else
+            connection.delete_security_group(nil, group_id)
+          end
           true
         end
 
@@ -195,6 +202,8 @@ module Fog
         def save
           requires :description, :name
           data = connection.create_security_group(name, description, vpc_id).body
+          new_attributes = data.reject {|key,value| key == 'requestId'}
+          merge_attributes(new_attributes)
           true
         end
 

lib/fog/aws/parsers/compute/create_security_group.rb

@@ -0,0 +1,20 @@
+module Fog
+  module Parsers
+    module Compute
+      module AWS
+
+        class CreateSecurityGroup < Fog::Parsers::Base
+
+          def end_element(name)
+            case name
+            when 'requestId', 'return', 'groupId'
+              @response[name] = value
+            end
+          end
+
+        end
+
+      end
+    end
+  end
+end

lib/fog/aws/requests/compute/create_security_group.rb

@@ -3,7 +3,7 @@ module Fog
     class AWS
       class Real
 
-        require 'fog/aws/parsers/compute/basic'
+        require 'fog/aws/parsers/compute/create_security_group'
 
         # Create a new security group
         #
@@ -17,6 +17,7 @@ module Fog
         #   * body<~Hash>:
         #     * 'requestId'<~String> - Id of request
         #     * 'return'<~Boolean> - success?
+        #     * 'groupId'<~String> - Id of created group
         #
         # {Amazon API Reference}[http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/ApiReference-query-CreateSecurityGroup.html]
         def create_security_group(name, description, vpc_id=nil)
@@ -24,8 +25,8 @@ module Fog
             'Action'            => 'CreateSecurityGroup',
             'GroupName'         => name,
             'GroupDescription'  => description,
-            :parser             => Fog::Parsers::Compute::AWS::Basic.new,
-            'VpcId'             => vpc_id
+            'VpcId'             => vpc_id,
+            :parser             => Fog::Parsers::Compute::AWS::CreateSecurityGroup.new
           )
         end