Launch Configuration
Noun · Development
Definitions
A template that defines the instance parameters — AMI, instance type, key pair, security groups, and user data — used by an auto scaling group to launch new EC2 instances. AWS has largely replaced these with the more flexible Launch Templates.
In plain English: A saved recipe that tells the cloud exactly how to create new servers when more capacity is needed.
Example: "The launch configuration was still pointing at the old AMI, so every new instance the auto scaler spun up came up with last month's code."