部署

下载最新代码并切换到release分支

git clone https://github.com/metallb/metallb.git
cd metallb
git checkout v0.14.8

部署metallb

cd config/manifests
kubectl apply -f metallb-native.yaml

创建MetalLB地址池

cat > metallb-ip-pool.yaml << EOF
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: first-pool
  namespace: metallb-system
spec:
  addresses:
  - 192.168.1.150-192.168.1.150

---

apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: example
  namespace: metallb-system
spec:
  ipAddressPools:
  - first-pool
EOF
kubectl apply -f metallb-ip-pool.yaml

查看创建的ip地址池

kubectl get IPAddressPool -n metallb-system

创建nginx测试pod

cat > nginx.yaml << EOF
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: 192.168.1.21:81/rancher/nginx:1.27.1-alpine
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: nginx-svc
spec:
  type: LoadBalancer
  ports:
  - nodePort: 30080
    port: 80
    protocol: TCP
    targetPort: 80
  selector:
    app: nginx
EOF

kubectl apply -f nginx.yaml

查看创建的nginx pod、svc

$ kubectl get pod
NAME                                READY   STATUS    RESTARTS   AGE
nginx-deployment-65d79b77dd-brsgf   1/1     Running   0          8m9s
nginx-deployment-65d79b77dd-rxqbc   1/1     Running   0          8m14s
nginx-deployment-65d79b77dd-vq8gz   1/1     Running   0          8m16s
$ kubectl get svc
NAME         TYPE           CLUSTER-IP     EXTERNAL-IP     PORT(S)        AGE
kubernetes   ClusterIP      10.43.0.1      <none>          443/TCP        94m
nginx-svc    LoadBalancer   10.43.45.206   192.168.1.150   80:30080/TCP   14m

测试访问外部ip

curl http://192.168.1.150
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
html { color-scheme: light dark; }
body { width: 35em; margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif; }
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

参考链接：https://blog.csdn.net/Jerry00713/article/details/139979169