khuedoan-homelab/docs/src/tutorials/single-node-cluster-adjustments.md

Single node cluster adjustments

Update the following changes, then commit and push.

Reduce Longhorn replica count

Set the defaultClassReplicaCount to 1:

# system/longhorn-system/values.yaml
{{#include ../../../system/longhorn-system/values.yaml}}

Disable automatic upgrade for OS and k3s

Because they will try to drain the only node, the pods will have no place to go. Remove them entirely:

rm -rf system/kured
rm -rf system/system-upgrade

Commit and push the change. You can revert it later when you add more nodes.