How do I create a GKE cluster that can autoscale when needed

Question

I need to create a cluster with size 30, that is also capable of auto-scaling based on the cluster load to a maximum of 50, and a minimum of 15?

Answer 1

The following command creates a cluster of size 30, with node autoscaling based on cluster load that scales the default node pool to a maximum of 50 nodes and a minimum of 15 nodes:

gcloud container clusters create [CLUSTER_NAME] --num-nodes 30 \ --enable-autoscaling --min-nodes 15 --max-nodes 50 [--zone [COMPUTE_ZONE]]

In this command:

• --enable-autoscaling indicates that autoscaling is enabled.

• --min-nodes specifies the minimum number of nodes for the default node pool.

• --max-nodes specifies the maximum number of nodes for the default node pool.

• --zone specifies the [compute zone] in which the autoscaler should create new nodes.