I have multiple Non-Production servers where each have 900GB EBS Volume attached. And currently there is a practice of taking snapshot of these instances every day. I want to detach this volume when ASG scales down and reattach it to them when it scales up thus reducing the size of snapshot. The 900GB volume is the Non-Prod DB Volume so I plan to schedule a weekly snapshot of it separately.
NOTE: Each Non-Production ASG will have only one EC2 spot instance max and the scaling up & down is done via scaling policies.
I am trying to setup Event Bridge notification, triggering a Lambda function whenever ASG performs an action. I want to know if there are any other AWS provided service for this or any better way to do this.
by default an EBS volume gets detached than the ec2 instance is removed. And for mounting it you can run a script in the user data.
/var/awslogs/bin/aws ec2 attach-volume --volume-id `your-ebs-volume-id` --instance-id `your-instance-id` --device /dev/xvdk