helm fetch --untar stable/metallb
cd metallb
vim values.yaml  # 配置ip池
helm install --name metallb --namespce kube-system ./

configInline:
  # Example ARP Configuration
  address-pools:
    - name: default
      protocol: layer2
      addresses:
        - 192.168.105.170-192.168.105.175

apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: nginx-metallb
spec:
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
        - name: nginx
          image: nginx
          ports:
            - name: http
              containerPort: 80

---
apiVersion: v1
kind: Service
metadata:
  name: nginx-metallb
spec:
  ports:
    - name: http
      port: 80
      protocol: TCP
      targetPort: 80
  selector:
    app: nginx
  type: LoadBalancer

# 访问测试
lb_ip=$(kubectl get svc nginx-metallb -ojsonpath={.status.loadBalancer.ingress[0].ip})
curl $lb_ip