MetalLB Operator

Overview

MetalLB offers a software network load balancing implementation that allows for LoadBalancing services in Kubernetes. Upstream documentation for MetalLB can be found at https://metallb.universe.tf/

The official documentation for these charms and how to use them with Kubernetes can be found at https://ubuntu.com/kubernetes/docs/metallb.

This repo contains both of the MetalLB charms (under the charms directory), as well as the bundle (under the bundle directory).

Filing bugs

Please file bugs at https://bugs.launchpad.net/operator-metallb.

Building the charms

The charms can be built locally using charmcraft:

charmcraft build -f charms/metallb-controller
charmcraft build -f charms/metallb-speaker

Testing locally

The easiest way to test MetalLB locally is with MicroK8s. Note that MicroK8s and Juju are not strictly build dependencies, so you may need to install them yourself:

snap install juju --classic
snap install microk8s --classic
sudo usermod -aG microk8s $USER
newgrp microk8s
microk8s.enable dns storage

Once that is done, you can bootstrap a Juju controller into MicroK8s, add a Kubernetes model, and deploy the bundle using the local overlay:

juju bootstrap microk8s
juju add-model metallb-system
juju deploy ./bundle --overlay ./docs/local-overlay.yaml

There is also an included manifest for deploying microbot to test your deployment:

microk8s.kubectl apply -f ./docs/example-microbot-lb.yaml