fix(disruption): Using correct internal LB monitor on ARO Hypershift

    The internal load balancer monitor used default LB config for ARO Hypershift is not applicable to Hypershift
    clusters and causes test failures. This change uses internal LB with specific settings(7743 port) to the deployment
    of the internal LB monitor on ARO Hypershift.

Author: wangke19

pkg/monitortests/kubeapiserver/disruptioninclusterapiserver/monitortest.go

@@ -180,7 +180,7 @@ func (i *InvariantInClusterDisruption) createDeploymentAndWaitToRollout(ctx cont
 	return nil
 }
 
-func (i *InvariantInClusterDisruption) createInternalLBDeployment(ctx context.Context, apiIntHost string) error {
+func (i *InvariantInClusterDisruption) createInternalLBDeployment(ctx context.Context, apiIntHost, apiIntPort string) error {
 	deploymentObj := resourceread.ReadDeploymentV1OrDie(internalLBDeploymentYaml)
 	deploymentObj.SetNamespace(i.namespaceName)
 	// set amount of deployment replicas to make sure it runs on all nodes
@@ -385,26 +385,20 @@ func (i *InvariantInClusterDisruption) StartCollection(ctx context.Context, admi
 		i.payloadImagePullSpec = clusterVersion.Status.History[0].Image
 	}
 
-	// Check for ARO HCP and skip if detected
+	// Check for Hypershift and ARO HCP
 	oc := exutil.NewCLI("apiserver-incluster-availability").AsAdmin()
-	var isAROHCPcluster bool
-	isHypershift, _ := exutil.IsHypershift(ctx, oc.AdminConfigClient())
-	if isHypershift {
+	i.isHypershift, _ = exutil.IsHypershift(ctx, oc.AdminConfigClient())
+	if i.isHypershift {
 		_, hcpNamespace, err := exutil.GetHypershiftManagementClusterConfigAndNamespace()
 		if err != nil {
 			logrus.WithError(err).Error("failed to get hypershift management cluster config and namespace")
 		}
 
-		// For Hypershift, only skip if it's specifically ARO HCP
-		// Use management cluster client to check the control-plane-operator deployment
 		managementOC := exutil.NewHypershiftManagementCLI(hcpNamespace)
-		if isAROHCPcluster, err = exutil.IsAroHCP(ctx, hcpNamespace, managementOC.AdminKubeClient()); err != nil {
+		i.isAROHCPCluster, err = exutil.IsAroHCP(ctx, hcpNamespace, managementOC.AdminKubeClient())
+		if err != nil {
 			logrus.WithError(err).Warning("Failed to check if ARO HCP, assuming it's not")
 			i.isAROHCPCluster = false // Assume not ARO HCP on error
-		} else if isAROHCPcluster {
-			i.isAROHCPCluster = true
-		} else {
-			i.isAROHCPCluster = false
 		}
 
 		// Check if this is a bare metal HyperShift cluster
@@ -543,7 +537,7 @@ func (i *InvariantInClusterDisruption) StartCollection(ctx context.Context, admi
 	if err != nil {
 		return fmt.Errorf("error creating localhost: %v", err)
 	}
-	err = i.createInternalLBDeployment(ctx, apiIntHost)
+	err = i.createInternalLBDeployment(ctx, apiIntHost, apiIntPort)
 	if err != nil {
 		return fmt.Errorf("error creating internal LB: %v", err)
 	}