I have a batch file that I'd like to run on startup of an EC2 Windows AMI. The program I'd like to run from that batch file takes the instance-id of the EC2 machine as a parameter. What is the simplest way to get that Instance ID passed as an argument to that program?
From Amazon's Documentation on the subject, I see that you're supposed to issue a WGET to a specified URL and parse the response. So an alternate way of phrasing this question might be "How do I pass the contents of a HTTP request to a program as an argument in a Windows batch file"
In pseudocode, this is what I'd like to do:
set ID = GET http://169.254.169.254/2008-08-08/meta-data/instance-id myprogram.exe /instanceID=%ID%
Any suggestions on how I might proceed?