WrathOfChris/ops — pull request #18 by WrathOfChris (2014-06-16 22:59:49+00:00)
Title: introduce app.intaddrs which are ec2 secondary IPs

requires introduction of app.azlimit which limits the availability zones
for an instance / autoscale group to a single AZ. Subnets cannot span
AZs, so this is the only option.

ec2rotatehosts now detects the first secondary address and preserves it