wr0ngway/rubber — pull request #225 by pushcx (2012-10-09 14:38:05+00:00)
Title: Bugfix for 

net-ssh expects the ssh option :keys to be a list, not a string. This causes cert authentication to fail and is why the FAQ has to suggest "use ssh-add or edit ~/.ssh/config" to use an alternate method. I'm idling in #rubberec2 if you want to talk about this one at all.

(Also, that first FAQ question refers to it as ec2_key_file which I guess is the old name for cloud_providers -> aws -> key_file.)