"istio.io/istio/pkg/config/constants"
	dnsProto "istio.io/istio/pkg/dns/proto"
)

func TestNDS(t *testing.T) {
	cases := []struct {
		name     string
		meta     model.NodeMetadata
		expected *dnsProto.NameTable
	}{
		{
			name: "auto allocate",
			meta: model.NodeMetadata{
				DNSCapture:      true,
				DNSAutoAllocate: true,
			},
			expected: &dnsProto.NameTable{

			name:  "cidr service",
			proxy: proxy,
			push:  cpush,
			expectedNameTable: &dnsProto.NameTable{
				Table: map[string]*dnsProto.NameTable_NameInfo{},
			},
		},
		{
			name:  "service entry with resolution = NONE",
			proxy: proxy,
			push:  sepush,
			expectedNameTable: &dnsProto.NameTable{
				Table: map[string]*dnsProto.NameTable_NameInfo{
					"foo.bar.com": {

// be used by the agent to resolve DNS. This logic is always active. However, local DNS resolution
// will only be effective if DNS capture is enabled in the proxy
func BuildNameTable(cfg Config) *dnsProto.NameTable {
	out := &dnsProto.NameTable{
		Table: make(map[string]*dnsProto.NameTable_NameInfo),
	}
	for _, svc := range cfg.Node.SidecarScope.Services() {
		svcAddress := svc.GetAddressForProxy(cfg.Node)
		var addressList []string
		hostName := svc.Hostname

// See the License for the specific language governing permissions and
// limitations under the License.

package core

import (
	"istio.io/istio/pilot/pkg/features"
	"istio.io/istio/pilot/pkg/model"
	dnsProto "istio.io/istio/pkg/dns/proto"
	dnsServer "istio.io/istio/pkg/dns/server"
)

// BuildNameTable produces a table of hostnames and their associated IPs that can then

	discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"

	meshconfig "istio.io/api/mesh/v1alpha1"
	"istio.io/istio/pilot/pkg/model"
	dnsProto "istio.io/istio/pkg/dns/proto"
)

// ConfigGenerator represents the interfaces to be implemented by code that generates xDS responses
type ConfigGenerator interface {

	return testAgentDNS
}

func fillTable(server *LocalDNSServer) {
	server.searchNamespaces = []string{"ns1.svc.cluster.local", "svc.cluster.local", "cluster.local"}
	server.UpdateLookupTable(&dnsProto.NameTable{
		Table: map[string]*dnsProto.NameTable_NameInfo{
			"www.google.com": {
				Ips:      []string{"1.1.1.1"},
				Registry: "External",
			},
			"productpage.ns1.svc.cluster.local": {
				Ips:       []string{"9.9.9.9"},

func (h *LocalDNSServer) IsReady() bool {
	return h.lookupTable.Load() != nil
}

func (h *LocalDNSServer) NameTable() *dnsProto.NameTable {
	lt := h.nameTable.Load()
	if lt == nil {
		return nil
	}
	return lt.(*dnsProto.NameTable)
}

// Inspired by https://github.com/coredns/coredns/blob/master/plugin/loadbalance/loadbalance.go
func roundRobinResponse(res *dns.Msg) {

		}
	}
	return nil
}

// GetDNSTable builds DNS table used in debugging interface.
func (a *Agent) GetDNSTable() *dnsProto.NameTable {
	if a.localDNSServer != nil && a.localDNSServer.NameTable() != nil {
		nt := a.localDNSServer.NameTable()
		nt = proto.Clone(nt).(*dnsProto.NameTable)
		a.localDNSServer.BuildAlternateHosts(nt, func(althosts map[string]struct{}, ipv4 []netip.Addr, ipv6 []netip.Addr, _ []string) {

	k8sUtilIo "k8s.io/utils/io"

	"istio.io/istio/pilot/cmd/pilot-agent/metrics"
	"istio.io/istio/pilot/cmd/pilot-agent/status/grpcready"
	"istio.io/istio/pilot/cmd/pilot-agent/status/ready"
	dnsProto "istio.io/istio/pkg/dns/proto"
	"istio.io/istio/pkg/env"
	commonFeatures "istio.io/istio/pkg/features"
	"istio.io/istio/pkg/kube/apimirror"
	"istio.io/istio/pkg/log"
	"istio.io/istio/pkg/model"

	"istio.io/istio/pilot/cmd/pilot-agent/status/ready"
	"istio.io/istio/pilot/pkg/features"
	istiogrpc "istio.io/istio/pilot/pkg/grpc"
	"istio.io/istio/pkg/channels"
	"istio.io/istio/pkg/config/constants"
	dnsProto "istio.io/istio/pkg/dns/proto"
	"istio.io/istio/pkg/h2c"
	"istio.io/istio/pkg/istio-agent/health"
	"istio.io/istio/pkg/istio-agent/metrics"
	istiokeepalive "istio.io/istio/pkg/keepalive"
	"istio.io/istio/pkg/log"