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Updated August 24, 2026 An HA control plane runs 3 masters with a replicated etcd, so the Kubernetes API stays up through a master failure. It costs a flat $30/month; you can also enable it at cluster creation.

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Steps

1

Open Settings

On the cluster page, open Settings and find High availability.
2

Upgrade

Click Upgrade to HA. Pay-as-you-go clusters start immediately; subscription clusters go through checkout for the pro-rated fee first. The two new masters join over a few minutes with no API downtime.
Nodes tab during an HA upgrade — two new masters provisioning while the cluster keeps running

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Verify

The cluster header shows an HA · 3 masters badge, and kubectl get nodes lists three control-plane nodes.
HA cannot be reversed from the dashboard — a 3-master control plane stays HA for the cluster’s lifetime.
Last modified on August 24, 2026