Description of problem:

An ETP=Local EgressService can not receive traffic when the cluster is on Shared Gateway mode.

The fix might be implementing https://github.com/ovn-kubernetes/ovn-kubernetes/pull/4265 for EgressServices

Version-Release number of selected component (if applicable): 4.14+

How reproducible: Always

Steps to Reproduce (on a kind cluster):

1. Create the EgressService:

—

apiVersion: apps/v1

kind: Deployment

metadata:

  name: example-deployment

  namespace: default

  labels:

    app: example

spec:

  replicas: 3

  selector:

    matchLabels:

      app: example

  template:

    metadata:

      labels:

        app: example

    spec:

      containers:

      - name: agnhost

        image: registry.k8s.io/e2e-test-images/agnhost:2.26

        command:

          - /agnhost

          - netexec

          - --http-port=9090

        ports:

        - containerPort: 9090

—

apiVersion: v1

kind: Service

metadata:

  name: example-service

  namespace: default

  annotations:

    metallb.universe.tf/address-pool: example-pool

spec:

  selector:

    app: example

  ports:

    - name: http

      protocol: TCP

      port: 9090

      targetPort: 9090

  type: LoadBalancer

  externalTrafficPolicy: Cluster

—

apiVersion: k8s.ovn.org/v1

kind: EgressService

metadata:

  name: example-service

  namespace: default

spec:

  sourceIPBy: "LoadBalancerIP"

—

apiVersion: metallb.io/v1beta1

kind: IPAddressPool

metadata:

  name: example-pool

  namespace: metallb-system

spec:

  addresses:

  - 10.89.0.100/32

  autoAssign: false

—

apiVersion: metallb.io/v1beta1

kind: L2Advertisement

metadata:

  name: example-l2-adv

  namespace: metallb-system

spec:

  ipAddressPools:

  - example-pool

  nodeSelectors:

  - matchLabels:

      egress-service.k8s.ovn.org/default-example-service: ""

2. Trying to hit the service from outside hands:

$ curl 10.89.0.100:9090/hostname && echo ""

<HANGS>

Expected results: the external client should be able to reach the service