SPIKE: Investigate Node Group Rebalancing #80
Description
We may want to find an automated way to disable the AZRebalance process that runs by default in the Autoscaling Group created for EKS managed node groups. If left on, this can lead to terminating nodes that might have active user sessions and create a disruptive experience. Using a self-managed node group gives us the option to disable AZ rebalancing.
This issue indicates the AWS team is aware of this deficiency with EKS managed node groups and is looking to address it.
Options
- wait for AWS team to handle this for EKS managed node groups
- find a way to update the managed ASG to disable
AZRebalance - use one node group per AZ
- self managed node groups