// Add the uniqueHost.
	vhosts = appendDomainPort(vhosts, uniqueHostname, port)
	if len(uniqueHostnameParts) == 2 {
		// This is the case of uniqHostname having namespace already.
		dnsHostName := uniqueHostname + "." + sharedDNSDomainParts[0]
		vhosts = appendDomainPort(vhosts, dnsHostName, port)
	}
	return vhosts
}

// portNoAppendPortSuffix is a signal to not append port to vhost

			// that is likely to be already present in the altHosts
			if _, exists := altHosts[expandedHost]; !exists {
				table.cname[expandedHost] = cname(expandedHost, h)
				table.allHosts.Insert(expandedHost)
			}
		}
	}
}

// Borrowed from https://github.com/coredns/coredns/blob/master/plugin/hosts/hosts.go
// a takes a slice of ip string and returns a slice of A RRs.

		}

		// exact hosts are saved separately for map lookup
		if !hName.IsWildCarded() {
			hostsByNamespace[ns].exactHosts.Insert(hName)
		}

		// allHosts contains the exact hosts and wildcard hosts,
		// since SelectVirtualServices will use `Matches` semantic matching.
		hc := hostsByNamespace[ns]
		hc.allHosts = append(hc.allHosts, hName)

			virtualServiceHosts := host.NewNames(virtualService.Spec.(*networking.VirtualService).Hosts)
			serverHosts := host.NamesForNamespace(server.Hosts, virtualService.Namespace)

			// We have two cases here:
			// 1. virtualService hosts are 1.foo.com, 2.foo.com, 3.foo.com and server hosts are ns/*.foo.com
			// 2. virtualService hosts are *.foo.com, and server hosts are ns/1.foo.com, ns/2.foo.com, ns/3.foo.com

		},
	)
}

func TestGatewayConflicts(t *testing.T) {
	tcpServer := `port:
  number: 80
  name: tcp
  protocol: TCP
hosts:
- "foo.bar"`
	httpServer := `port:
  number: 80
  name: http
  protocol: HTTP
hosts:
- "foo.bar"`
	tlsServer := `hosts:
  - ./*
port:
  name: https-ingress
  number: 443
  protocol: HTTPS
tls:
  credentialName: sds-credential
  mode: SIMPLE`

    internal.istio.io/parents: Gateway/gateway/default.istio-system
  creationTimestamp: null
  name: gateway-istio-autogenerated-k8s-gateway-default
  namespace: istio-system
spec:
  servers:
  - hosts:
    - '*/*.domain.example'
    port:
      name: default
      number: 80
      protocol: HTTP
---
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  annotations:

           if [[ "${hosts}" != "" ]]; then
             hosts="${hosts},"
           fi
           echo "Reusing host ${instance_prefix}-${i}"
           hosts="${hosts}${instance_prefix}-${i}"
         else
           if [[ "${images}" != "" ]]; then
             images="${images},"
           fi

	hosts := sets.Set[string]{}
	if g == nil {
		return hosts
	}
	if g.ContainsAutoPassthroughGateways {
		for _, tls := range g.MergedServers {
			for _, s := range tls.Servers {
				if s.GetTls().GetMode() == networking.ServerTLSSettings_AUTO_PASSTHROUGH {
					hosts.InsertAll(s.Hosts...)
				}
			}
		}
	}
	return hosts
}

			c: &conf{
				netGo: true,
			},
			resolv: defaultResolvConf,
			nss:    nssStr(t, "hosts: dns files"),
			hostTests: []nssHostTest{
				{"x.com", "myhostname", hostLookupDNSFiles},
			},
		},
		{
			name: "netgo_fallback_on_cgo",
			c: &conf{
				netGo: true,
			},
			resolv: defaultResolvConf,
			nss:    nssStr(t, "hosts: dns files something_custom"),
			hostTests: []nssHostTest{

	}

	addVirtualService := func(i int, hosts []string, dest string) {
		if _, err := s.Store().Create(config.Config{
			Meta: config.Meta{
				GroupVersionKind: gvk.VirtualService,
				Name:             fmt.Sprintf("vs%d", i), Namespace: testConfigNamespace,
			},
			Spec: &networking.VirtualService{
				Hosts: hosts,
				Http: []*networking.HTTPRoute{{
					Name: "dest-foo",