Metallb

Prerequisites

This guide assumes you have the following prerequisites in place:

• FluxCD

Metallb

Metallb is a load-balancer implementation for bare metal Kubernetes clusters.

Installation

1. Create the following directory structure for Metallb:

    metallb/
    ├── l2-advertisement.yml
    ├── helmrelease.yml
    ├── helmrepository.yml
    └── ip-pool.yml

2. Add the following content to metallb/l2-advertisement.yml:

    apiVersion: metallb.io/v1beta1
    kind: L2Advertisement
    metadata:
      name: k3s-lb-pool
      namespace: metallb-system
    spec:
      ipAddressPools:
      - ip-pool

3. Add the following content to metallb/helmrepository.yml:

   ---
   apiVersion: source.toolkit.fluxcd.io/v1
   kind: HelmRepository
   metadata:
     name: metallb
     namespace: flux-system
   spec:
     interval: 6h
     url: https://metallb.github.io/metallb

4. Add the following content to metallb/helmrelease.yml:

   ---
   apiVersion: helm.toolkit.fluxcd.io/v2
   kind: HelmRelease
   metadata:
     name: metallb
     namespace: metallb-system
   spec:
     interval: 6h
     chart:
       spec:
         chart: metallb
         version: "0.15.3"
         sourceRef:
           kind: HelmRepository
           name: metallb
           namespace: flux-system
         interval: 6h
     install:
       createNamespace: true
     upgrade:
       remediation:
         remediateLastFailure: true

5. Add the following content to metallb/ip-pool.yml:

   apiVersion: metallb.io/v1beta1
   kind: IPAddressPool
   metadata:
     name: ip-pool
     namespace: metallb-system
   spec:
     addresses:
     - 192.168.1.201-192.168.1.250

6. Commit and push the changes to your Git repository.