I am working with Amazon EC2, and I have some Windows AMIs backed with EBS. When I launch a new instance from an EBS snapshot, the EC2Config service prepares the Windows machine for me. I know when EC2Config is done because I can check the instance Console Output - once it says "Windows is Ready" I know I am good.
What I am looking for is a way to tell that "Windows is Ready" from within the operating system itself. I would think that the meta-data URL that is accessible from within the OS would tell me this, but I can't find any appropriate values.
http://169.254.169.254/latest/meta-data/
My goal is to run configuration scripts once "Windows is Ready". Some of my configuration tasks need to make sure the machine is fully configured before starting - especially if EC2Config is renaming the computer and rebooting. I could write something using the EC2 tools or C#...but that would require me to use my AWS keys on my AMIs (which I don't want to do). Ideally, I'd like to look at something on the machine itself to tell when I can start configuration - something like an EventLog entry, watching a text file, checking the meta-data URL, etc.
Side question: I could use a good article on exactly what the bundle/unbundle process does to EBS machines.