package forwarder

import (
	"context"

	"google.golang.org/grpc"
	"google.golang.org/grpc/credentials"
	"google.golang.org/grpc/credentials/insecure"
	"google.golang.org/grpc/credentials/xds"
	xdsresolver "google.golang.org/grpc/xds"

	"istio.io/istio/pkg/test/echo/common"
	"istio.io/istio/pkg/test/echo/proto"
)

var _ protocol = &grpcProtocol{}

type xdsProtocol struct {
	e *executor
}

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package xds

import (
	"errors"
	"fmt"

	bootstrap "github.com/envoyproxy/go-control-plane/envoy/config/bootstrap/v3"
	cluster "github.com/envoyproxy/go-control-plane/envoy/config/cluster/v3"

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

package features

import (
	"istio.io/istio/pkg/env"
)

// Define flags that affect XDS config generation here.
var (
	// EnableMysqlFilter enables injection of `envoy.filters.network.mysql_proxy` in the filter chain.
	// Pilot injects this outbound filter if the service port name is `mysql`.

Kuat <******@****.***> 1712262548 -0700

area: traffic-management
issue:
  - 47949
releaseNotes:
  - |
    **Enabled** [Delta xDS](https://www.envoyproxy.io/docs/envoy/latest/api-docs/xds_protocol#incremental-xds) by default. See upgrade notes for more information.
upgradeNotes:
  - title: Delta xDS on by default
    content: |
      In previous versions, Istio used the "State of the world" xDS protocol to configure Envoy.

apiVersion: release-notes/v2
kind: bug-fix
area: traffic-management
issue: [39209]
releaseNotes:
- |

apiVersion: release-notes/v2
kind: feature
area: traffic-management
releaseNotes:
- |

apiVersion: release-notes/v2
kind: feature
area: traffic-management
issues:
- 35263
releaseNotes:
- |
  **Improved** the default `PILOT_MAX_REQUESTS_PER_SECOND`, which limits the number of **new** XDS connections per second,

apiVersion: release-notes/v2
kind: feature
area: traffic-management
issue:
- 37989
- 37974

releaseNotes:
- |
  **Improved** XDS generation to send less resource when possible, sometimes omitting a response entirely.

	generators[v3.ClusterType] = &xds.CdsGenerator{ConfigGenerator: cg}
	generators[v3.ListenerType] = &xds.LdsGenerator{ConfigGenerator: cg}
	generators[v3.RouteType] = &xds.RdsGenerator{ConfigGenerator: cg}
	generators[v3.EndpointType] = edsGen
	ecdsGen := &xds.EcdsGenerator{ConfigGenerator: cg}
	if env.CredentialsController != nil {
		generators[v3.SecretType] = xds.NewSecretGen(env.CredentialsController, s.Cache, clusterID, env.Mesh())