Cluster Autoscaler
By leveraging CAPI cluster lifecycle hooks, this handler deploys Cluster Autoscaler
on the new cluster via ClusterResourceSets at the AfterControlPlaneInitialized phase.
Deployment of Cluster Autoscaler is opt-in via the provider-specific cluster configuration.
The hook creates a ClusterResourceSet to deploy the Cluster Autoscaler resources.
Example
To enable deployment of Cluster Autoscaler on a cluster, specify the following values:
apiVersion: cluster.x-k8s.io/v1beta1
kind: Cluster
metadata:
name: <NAME>
spec:
topology:
variables:
- name: clusterConfig
value:
addons:
clusterAutoscaler:
strategy: ClusterResourceSet
workers:
machineDeployments:
- class: default-worker
metadata:
annotations:
# Set the following annotations to configure the Cluster Autoscaler
# The initial MachineDeployment will have 1 Machine
cluster.x-k8s.io/cluster-api-autoscaler-node-group-max-size: "3"
cluster.x-k8s.io/cluster-api-autoscaler-node-group-min-size: "1"
name: md-0
# Remove the replicas field, otherwise the topology controller will revert back the autoscaler's changes
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