I have some user-data script that configures some applications on My EC2 instances. I want a new instance to be terminated immediately if a certain condition occurs during that script run.

I've tried both the following commands in the script. However, the termination does not occur until 10 minutes after the command is issued.

aws autoscaling terminate-instance-in-auto-scaling-group --instance-id $instanceid --no-should-decrement-desired-capacity


aws ec2 terminate-instances --instance-ids $instanceid 

Is there any way to force the termination to occur sooner?

CodePudding user response：

Rather than asking the Amazon EC2 service to terminate an instance, you can simply call the Operating System and tell it to Stop the instance:

sudo shutdown now -h

(The -h tells it to 'halt' the virtual hardware, which signals to the EC2 instance that the computer is now turned off, much like your home computer turns itself off after a 'Shutdown' command.)

Depending upon the configured Shutdown Behavior of the instance, it will either move into the Stopped or Terminated state.

I notice that you are using Auto Scaling. If Auto Scaling notices an instance is stopped/terminated, it will automatically launch a replacement. However, it might take a few minutes to detect this and launch a replacement.