／var／logmarcus chiu

MetalLB - Installation & Setup

Created on · Last Modified on

see: https://metallb.io/installation/

Preparation

Enable strict ARP mode

kubectl edit configmap -n kube-system kube-proxy

and set:

apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: "ipvs"
ipvs:
  strictARP: true

Installation by Manifest

kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.14.8/config/manifests/metallb-native.yaml

Layer 2 Configuration

Create 2 manifest files:

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: my-ip-address-pool-1
  namespace: metallb-system
spec:
  addresses:
  - 192.168.111.240-192.168.111.250

apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: my-l2-advertisement-1
  namespace: metallb-system

Now apply both manifests:

> kubectl apply -f my-ip-address-pool-1.yaml
ipaddresspool.metallb.io/my-ip-address-pool-1 created
> kubectl apply -f my-l2-advertisement-1.yaml
l2advertisement.metallb.io/my-l2-advertisement-1 created

Usage

requesting specific IPs

apiVersion: v1
kind: Service
metadata:
  name: nginx
  annotations:
    metallb.universe.tf/loadBalancerIPs: 192.168.1.100
spec:
  ports:
  - port: 80
    targetPort: 80
  selector:
    app: nginx
  type: LoadBalancer