Lifecycle Hooks

Auto Scaling group (ASG) allows to scale in and out depending on the application’s demand. ASG allows us to attach lifecycle hooks that can perform custom actions while scaling in and scaling our. In this lesson, we’ll look at how lifecycle hooks work and their importance in AWS auto scaling.

Operational dynamics of lifecycle hooks

Lifecycle hooks function by intervening during two key transition states of an instance:

• Launching: This hook is engaged after the instance is launched but before it’s marked as InService. It’s a important phase where we can run pre-service scripts, perform system updates, or apply configurations essential for the instance’s role.