Enable the default instance warmup for a group - Amazon EC2 Auto Scaling

Enable the default instance warmup for a group

You can enable the default instance warmup when you create an Auto Scaling group. You can also enable it for existing groups.

By enabling the default instance warmup feature, you no longer have to specify values for warmup parameters for the following features:

Console
To enable the default instance warmup for a new group (console)

When you create the Auto Scaling group, on the Configure advanced options page, under Additional settings, select the Enable default instance warmup option. Choose the warmup time that you need for your application.

AWS CLI
To enable the default instance warmup for a new group (AWS CLI)

To enable the default instance warmup for an Auto Scaling group, add the --default-instance-warmup option and specify a value, in seconds, from 0 to 3600. After it's enabled, a value of -1 will turn this setting off.

The following create-auto-scaling-group command creates an Auto Scaling group with the name my-asg and enables the default instance warmup with a value of 120 seconds.

aws autoscaling create-auto-scaling-group --auto-scaling-group-name my-asg --default-instance-warmup 120 ...
Tip

If this command throws an error, make sure that you have updated the AWS CLI locally to the latest version.

Console
To enable the default instance warmup for an existing group (console)

  1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/, and choose Auto Scaling Groups from the navigation pane.

  2. On the navigation bar at the top of the screen, choose the AWS Region that you created your Auto Scaling group in.

  3. Select the check box next to the Auto Scaling group.

    A split pane opens up in the bottom of the page.

  4. On the Details tab, choose Advanced configurations, Edit.

  5. For Default instance warmup, choose the warmup time that you need for your application.

  6. Choose Update.

AWS CLI
To enable the default instance warmup for an existing group (AWS CLI)

The following example uses the update-auto-scaling-group command to enable the default instance warmup with a value of 120 seconds for an existing Auto Scaling group named my-asg.

aws autoscaling update-auto-scaling-group --auto-scaling-group-name my-asg --default-instance-warmup 120
Tip

If this command throws an error, make sure that you have updated the AWS CLI locally to the latest version.