MetalLBAddressPoolUsage #

Meaning #

The MetalLB address pool is about to fill up.

Impact #

With all addresses used up, new services of type LoadBalancer will not provision successfully.

Diagnosis #

Check the existing MetalLB pools:

kubectl get ipaddresspools.metallb.io -A

Also check the current services for resource leakage:

kubectl get services --all-namespaces | grep LoadBalancer

Mitigation #

Cleanup old/unused services or add another IPAddressPool with additional IP addresses.