opscode/chef-provisioning-fog — pull request #81 by justindossey (2014-12-26 23:31:10+00:00)
Title: Added IAM role support for provisioner hosts.

Fixes #80.

If you want to use IAM roles on the provisioner host instead of using secret key and key ID, specify the driver URL with fog:AWS:IAM:. The provisioner needs permission to create, terminate, reboot, and describe-instances.