I was happy to hear about EBS Backed AMI, but I am confused. It doesn't seems persistent at all.
I created EC2 instance using one of Amazon's Linux EBS Backed AMI. I updated and added http server and python. I noticed the EBS AMI has been added to the EBS Volume. Then I terminated the EC2 instance to continue my work some other time, once I terminated, everything was gone. The EBS Volume and all the changes that I made. Confused why EBS volume is gone? How this is persistent?
Then I did the same thing again above. This time I created and registered the AMI before shutting it down. But every update after creating new AMI is lost.
Everytime I update a file or other configuration, I don't want to register and create a new AMI. That seems tedious and inefficient. Why do they call this EBS if everything is lost after terminating the instance? Am I doing something wrong? Is it possible to create a persistent AMI without need to register new image every time you update a file?