I installed MetalLB using helm. Upgrading is a one-liner.

When I originally installed MetalLB, it used a ConfigMap for setting up address ranges. Since 0.13.2, it supports configuration using Custom Resource Definitions (CRDs). I forgot to write a blog post about that when I upgraded.

On the morning of March 18th, 2023, accessing any sites hosted by my Kubernetes cluster would fail with a “Connection Timed Out” error. This is the incident review.

Installation with Helm, per https://metallb.universe.tf/installation/#installation-with-helm.