coreos/coreos-overlay — pull request #142 by marineam (2013-07-30 15:47:04+00:00)
Title: fix(dev-db/etcd): Handle missing ec2 user-data correctly.

Important notice to all using curl: by default a 404 is not an error!

I noticed that instances created without any user data were attempting
to connect to a *lot* of random IP addresses and failing. After
attempting the curl command c10n uses to fetch user data it would seem
we have lots of virtual machines using the following as a secret key:

404 - Not Found

404 - Not Found

ᕙ(⇀‸↼‶)ᕗ

The --fail option is required for curl to behave responsibly.