ebrandi/route53-failover — pull request #1 by raineralves (2012-11-12 01:43:25+00:00)
Title: Improve logging, lockfile, show added/removed hosts and a couple more features

+ Log script action to logfile
+ Implement lockfile
+ Check if needed tools are installed
+ Check write permission
+ Check if DNS zone is hosted on Route53
+ Show which hosts were added/removed or had their weight changed
+ Test failover host before doing actual failover
+ Improve XML output