Add MetalLB to MicroK8S
There is a question that pops up inside my head every time I work with Kubernetes [1], " Why the hell does it not implement a network load balancer? ". It did have network load balancers but tied to public cloud providers (e.g., AWS, GCP, etc.). What if I want to run Kubernetes clusters in my private clouds or even in my bare-metal infrastructures? Fortunately, I found MetalLB [2]. "MetalLB hooks into your Kubernetes cluster, and provides a network load-balancer implementation. In short, it allows you to create Kubernetes services of type “LoadBalancer” in clusters that don’t run on a cloud provider, and thus cannot simply hook into paid products to provide load-balancers." ~MetalLB documentations. So, whenever I spin up a new Kubernetes cluster in my bare-metal infrastructures (or for my MicroK8S [4] clusters), I normally have to deploy MetalLB and with Layer 2 configuration as depicted in figure 1. There are also other configurations such as BGP, automatic ...