Stanford-Online/class2go — pull request #1159 by sefk (2012-10-22 18:54:45+00:00)
Title: Keep machine DNS entries in c2gops.com up-to-date (#643) to master

Scripting to get us out of the business of manually updating our DNS entries all the time, which is both a pain and error prone.

Tested on staging:
- updating app1.stage and util1.stage, saw DNS entries update
- shutdown machine (via ec2 console), bring back up, saw CNAME reflect new hostname
- brought up new app2.stage, successful and DNS entry created

Bonus: shouldn't have to restart machines after first-time bringup anymore (#1158). Mazeltov.