Tuesday, December 20, 2011

RightScale-to-Native Amazon Web Services (AWS) Name Synchronizer

At my company, we use RightScale for a lot of our Amazon Web Services management. It's a pretty neat service - sort of "training wheels" for the cloud. Still provides us a lot of value.

But sometimes I like to log directly into the AWS console. Especially to find out when Amazon has scheduled reboots of our servers. Before I wrote this script, I would log in to find a whole bunch of instances running with no names. Then I'd have to go look them up in RightScale. Why can't RightScale just name your Amazon instances with the right names?!

Well, I finally took matters into my own hands and built the following script. It walks through all of your RightScale servers, and finds the associated Amazon instances and sets their name attributes to the RightScale "nicknames."

And I got permission from my job to make it available to the public - so here it is:


Yes, it is not the prettiest code I have ever written, but it does the trick. If someone wants to make it prettier I am definitely open to pull requests.

One thing I have noticed is that when you 'relaunch' a RightScale instance, the new instance will come up without an AWS name. If you re-run the script that will fix that. Also, if you use any RightScale arrays, the same thing can happen during scale-up/scale-down events.