Move AWS profile selection to probe

[Aaron Levy]

If we can setup a probe to detect if it is an AWS instance, our installation process will be a couple steps simpler (and more automated).

With a probe to create the proper group relation, we will only need a single profile (Mercury) and all other 'groupings' (like OS type, OS Version and Instance type) will be determined automatically.

To do this we need a probe/script that will output "group:aws" if it is an AWS instance.

Possible solution (per Josh):

curl --connect-timeout 1 curl http://169.254.169.254/1.0/meta-data/ami-id

Forum discussion and example ruby script with various tests (could be ported):

http://developer.amazonwebservices.com/connect/message.jspa?messageID=122591