Can we turn off AZ rebalancing for an autoscaling group ?

Question

We have a usecase not to rebalance instances across AZ's. In ASG, I see capacity rebalance flag - can you confirm if that flag is only applicable for spot instances ?

does turning off capacity rebalance flag to false - stops the rebalance ?

how to turn off AZ rebalance through ASG ? any cli command would be appreciated.

AmerO · Accepted Answer

You will need to look at AZRebalance – Balances the number of EC2 instances in the group evenly across all of the specified Availability Zones when the group becomes unbalanced, for example, when a previously unavailable Availability Zone returns to a healthy state. For more information, see Rebalancing activities.
https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-suspend-resume-processes.html

The Capacity Rebalancing feature in Auto Scaling Groups (ASG) is specifically designed for Spot Instances.

cloudian_k521 · Answer

Thnx, tried below cli and going to check.

>> aws autoscaling suspend-processes --auto-scaling-group-name eks-asg-grp --scaling-processes AZRebalance

Can we turn off AZ rebalancing for an autoscaling group ?

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