METALLB example

itlab-app.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: itlab-app
data:
  nginx.conf: '
events {
}
http {
   server {
       listen 80;
       location / {
           return 200 "$remote_addr - Hello IT Lab readers, today we are covering MetalLB!\n";
       }
   }
}
'
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: itlab-app
spec:
  selector:
    matchLabels:
      owner: cloud-itlab
      app: itlab-app
  replicas: 2
  template:
    metadata:
      labels:
        owner: cloud-itlab
        app: itlab-app
    spec:
      containers:
      - name: itlab-app
        image: nginx:latest
        ports:
        - containerPort: 80
        volumeMounts:
          - name: itlab-app-vol
            mountPath: /etc/nginx/
      volumes:
        - name: itlab-app-vol
          configMap:
            name: itlab-app
            items:
              - key: nginx.conf
                path: nginx.conf

itlab-ipaddresspool.yaml

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: itlab-pool
  namespace: metallb-system
spec:
  addresses:
  - 192.168.122.232-192.168.122.240

itlab-l2advertisement.yaml

apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: itlab-advertisement
  namespace: metallb-system
spec:
  ipAddressPools:
  - itlab-pool

itlab-lbservice.yaml

apiVersion: v1
kind: Service
metadata:
  name: itlab-app
  labels:
    app: itlab-app
spec:
  type: LoadBalancer
  ports:
  - port: 80
    protocol: TCP
  selector:
    app: itlab-app