Istio Egress Loadbalancing

Networking
1

I want to know how to use istio for egress load balancing.

We have 2 URL’s serving the same purpose and want istio to load balance the egress traffic between these 2 domains.
Below are the 2 url’s
https://server1.retailonlinedevikscluster-46e544cd60b778e71a17cbb7b32c6e71-0000.eu-gb.containers.appdomain.cloud/greet

https://server2.retailonlinedevikscluster-46e544cd60b778e71a17cbb7b32c6e71-0000.eu-gb.containers.appdomain.cloud/greet

I want my application to call a url http://myserver.com (this is a non-existing domain) and Istio should load balance the traffic between the above 2 url’s

Below is the config I tried but not working

---
apiVersion: networking.istio.io/v1beta1
kind: ServiceEntry
metadata:
 name: external-svc-dns
spec:
 hosts:
 - myserver.com
 ports:
 - number: 80
   name: http-port
   protocol: HTTP
   targetPort: 443
 resolution: DNS
 endpoints:
 - address: server1.retailonlinedevikscluster-46e544cd60b778e71a17cbb7b32c6e71-0000.eu-gb.containers.appdomain.cloud
 - address: server2.retailonlinedevikscluster-46e544cd60b778e71a17cbb7b32c6e71-0000.eu-gb.containers.appdomain.cloud
---

Istio Config map:
$ kubectl get configmap istio -n istio-system -o yaml
apiVersion: v1
data:
  mesh: |-
    defaultConfig:
      discoveryAddress: istiod.istio-system.svc:15012
      proxyMetadata:
        ISTIO_META_DNS_AUTO_ALLOCATE: "true"
        ISTIO_META_DNS_CAPTURE: "true"
      tracing:
        zipkin:
          address: zipkin.istio-system:9411
    defaultProviders:
      metrics:
      - prometheus
    enablePrometheusMerge: true
    outboundTrafficPolicy:
      mode: REGISTRY_ONLY
    rootNamespace: istio-system
    trustDomain: cluster.local
  meshNetworks: 'networks: {}'
kind: ConfigMap
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"v1","data":{"mesh":"defaultConfig:\n  discoveryAddress: istiod.istio-system.svc:15012\n  proxyMetadata: {}\n  tracing:\n    zipkin:\n      address: zipkin.istio-system:9411\ndefaultProviders:\n  metrics:\n  - prometheus\nenablePrometheusMerge: true\noutboundTrafficPolicy:\n  mode: REGISTRY_ONLY\nrootNamespace: istio-system\ntrustDomain: cluster.local","meshNetworks":"networks: {}"},"kind":"ConfigMap","metadata":{"annotations":{},"labels":{"install.operator.istio.io/owning-resource":"unknown","install.operator.istio.io/owning-resource-namespace":"istio-system","istio.io/rev":"default","operator.istio.io/component":"Pilot","operator.istio.io/managed":"Reconcile","operator.istio.io/version":"1.18.2","release":"istio"},"name":"istio","namespace":"istio-system"}}
  creationTimestamp: "2023-08-12T22:45:11Z"
  labels:
    install.operator.istio.io/owning-resource: unknown
    install.operator.istio.io/owning-resource-namespace: istio-system
    istio.io/rev: default
    operator.istio.io/component: Pilot
    operator.istio.io/managed: Reconcile
    operator.istio.io/version: 1.18.2
    release: istio
  name: istio
  namespace: istio-system
  resourceVersion: "5472"
  uid: 42984edb-a3c7-49cb-a832-535440195208
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
 name: myserver
spec:
 host: myserver.com
 trafficPolicy:
   tls:
     mode: SIMPLE
   loadBalancer:
     simple: ROUND_ROBIN
   outlierDetection:
     consecutive5xxErrors: 1
     interval: 15s
     baseEjectionTime: 1m

I am trying to do curl http://myserver.com/greet which should load balance between https://server1.retailonlinedevikscluster-46e544cd60b778e71a17cbb7b32c6e71-0000.eu-gb.containers.appdomain.cloud/greet and https://server2.retailonlinedevikscluster-46e544cd60b778e71a17cbb7b32c6e71-0000.eu-gb.containers.appdomain.cloud/greet

Getting below error in side the pod

[root@nettools-deployment-6c9c47b98d-tjp6d /]# curl http://myserver.com/greet
<html><h1>Error 404</h1><br/>Page Not Found</html>
2

Can anyone help me with this issue?