Hacker News Reader

That looks good. Congrats.

The smallest preset cluster looks to be two nodes. I thought 3 is minimum for consensus reasons?

Thanks!

The worker nodes don't need quorum, they are merely VMs that are running a daemon capable of scheduling k8s workloads onto it. The control planes can be configured for high availability (HA), resulting in 3 control planes.

ah gotcha. I'm used to running all on all at home (3x rasps) so didn't occur to me that control plane is what matters

You can do it with two, but availability will be lower than even a single node because if either one disconnects the cluster enters a split-brain state and cannot safely mutate / update anything.

Their control planes are hosted, so that's not an issue. You need three nodes for the control plane's master election, but for failover app routing, two is fine.

Reply on news.ycombinator.com