Description

The GKE has their own comprehensive capability of scaling, which is capabale enough to build highly scalable cluster. However some customers are building things with upstream Cluster Autoscaler, especailly for those of you migrated from other cloud providers who don't want to change their familiar experiences depends on upstream Cluster Autoscaler, or some features don't match your expectation such as expander, configuring terminationGracePeriodSeconds, etc., following content is trying to address that.

Using an expander

Configuring terminationGracePeriodSeconds

To deploy a customized Cluster Autoscaler instead of use built-in one from GKE and configure termination grace period.