evandbrown/aws-hangouts — pull request #4 by alanwill (2014-01-27 02:38:31+00:00)
Title: Update to Agenda Suggestions: Security Groups

Security groups that reference themselves. When you have a cluster using the same security group and each node in the cluster needs to communicate with other nodes in the cluster there's a need to create a Security Group rule with ports where the source is the same security group ID. How do you do this with CloudFormation?