27.3.

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  namespace: metallb-system
  name: pool1
spec:
  addresses:
    - 4.4.4.100-4.4.4.200
    - 2001:100:4::200-2001:100:4::400

$ oc apply -f ipaddresspool1.yaml

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  namespace: metallb-system
  name: pool2
spec:
  addresses:
    - 5.5.5.100-5.5.5.200
    - 2001:100:5::200-2001:100:5::400

$ oc apply -f ipaddresspool2.yaml

apiVersion: metallb.io/v1beta2
kind: BGPPeer
metadata:
  namespace: metallb-system
  name: peer1
spec:
  peerAddress: 10.0.0.1
  peerASN: 64501
  myASN: 64500
  routerID: 10.10.10.10

$ oc apply -f bgppeer1.yaml

apiVersion: metallb.io/v1beta2
kind: BGPPeer
metadata:
  namespace: metallb-system
  name: peer2
spec:
  peerAddress: 10.0.0.2
  peerASN: 64501
  myASN: 64500
  routerID: 10.10.10.10

$ oc apply -f bgppeer2.yaml

apiVersion: metallb.io/v1beta1
kind: BGPAdvertisement
metadata:
  name: bgpadvertisement-1
  namespace: metallb-system
spec:
  ipAddressPools:
    - pool1
  peers:
    - peer1
  communities:
    - 65535:65282
  aggregationLength: 32
  aggregationLengthV6: 128
  localPref: 100

$ oc apply -f bgpadvertisement1.yaml

apiVersion: metallb.io/v1beta1
kind: BGPAdvertisement
metadata:
  name: bgpadvertisement-2
  namespace: metallb-system
spec:
  ipAddressPools:
    - pool2
  peers:
    - peer2
  communities:
    - 65535:65282
  aggregationLength: 32
  aggregationLengthV6: 128
  localPref: 100

$ oc apply -f bgpadvertisement2.yaml

apiVersion: metallb.io/v1beta2
kind: BGPPeer
metadata:
  name: frrviavrf
  namespace: metallb-system
spec:
  myASN: 100
  peerASN: 200
  peerAddress: 192.168.130.1
  vrf: ens4vrf 1

$ oc apply -f frrviavrf.yaml

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: first-pool
  namespace: metallb-system
spec:
  addresses:
  - 192.169.10.0/32

$ oc apply -f first-pool.yaml

apiVersion: metallb.io/v1beta1
kind: BGPAdvertisement
metadata:
  name: first-adv
  namespace: metallb-system
spec:
  ipAddressPools:
    - first-pool
  peers:
    - frrviavrf 1

$ oc apply -f first-adv.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: test
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: server
  namespace: test
spec:
  selector:
    matchLabels:
      app: server
  template:
    metadata:
      labels:
        app: server
    spec:
      containers:
      - name: server
        image: registry.redhat.io/ubi9/ubi
        ports:
        - name: http
          containerPort: 30100
        command: ["/bin/sh", "-c"]
        args: ["sleep INF"]
---
apiVersion: v1
kind: Service
metadata:
  name: server1
  namespace: test
spec:
  ports:
  - name: http
    port: 30100
    protocol: TCP
    targetPort: 30100
  selector:
    app: server
  type: LoadBalancer

$ oc apply -f deploy-service.yaml