// handler specifies the underlying runtime and configuration that the CRI
  // implementation will use to handle pods of this class. The possible values
  // are specific to the node & CRI configuration.  It is assumed that all
  // handlers are available on every node, and handlers of the same name are
  // equivalent on every node.
  // For example, a handler called "runc" might specify that the runc OCI

// 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 handlers

import (
	"context"
	"errors"
	"fmt"
	"sort"
	"strings"
	"time"

	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/labels"

Construction should create informers (via `kclient.New`), setup a queue (via `controllers.NewQueue`), and register event handlers on the informers.
Often, these handlers are adding something to the queue like `client.AddEventHandler(controllers.ObjectHandler(queue.AddObject))`.
Construction should NOT actually start running all of these things, do I/O, or block in anyway.

# This is intended to explore new features coming to Istio.
# Stability, security, and performance are not guaranteed - use at your own risk.
meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

	"istio.io/istio/pkg/util/protomarshal"
)

// MessageSlice allows us to marshal slices of protobuf messages like clusters/listeners/routes/endpoints correctly
type MessageSlice []proto.Message

// MarshalJSON handles marshaling of slices of proto messages
func (pSlice MessageSlice) MarshalJSON() ([]byte, error) {
	buffer := bytes.NewBufferString("[")
	sliceLength := len(pSlice)
	for index, msg := range pSlice {

  // handler specifies the underlying runtime and configuration that the CRI
  // implementation will use to handle pods of this class. The possible values
  // are specific to the node & CRI configuration.  It is assumed that all
  // handlers are available on every node, and handlers of the same name are
  // equivalent on every node.
  // For example, a handler called "runc" might specify that the runc OCI

# This is intended to explore new features coming to Istio.
# Stability, security, and performance are not guaranteed - use at your own risk.
meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

change which control plane revision handles injection, it's possible to create a revision tag "prod" and label our
namespace "istio.io/rev=prod". The "prod" revision tag could point to "1-7-6" initially and then be changed to point to "1-8-1"
at some later point.

This allows operators to change which Istio control plane revision should handle injection for a namespace or set of namespaces

    # Only one environment should have this enabled.
    enableNamespacesByDefault: false

    # Mutations that occur after the sidecar injector are not handled by default, as the Istio sidecar injector is only run
    # once. For example, an OPA sidecar injected after the Istio sidecar will not have it's liveness/readiness probes rewritten.

	s := &CniPluginServer{
		handlers:  handlers,
		dataplane: dataplane,
		cniListenServer: &http.Server{
			Handler: mux,
		},
		cniListenServerCancel: cancel,
		sockAddress:           pluginSocket,
		ctx:                   ctx,
	}

	mux.HandleFunc(pconstants.CNIAddEventPath, s.handleAddEvent)
	return s
}

func (s *CniPluginServer) Stop() {
	s.cniListenServerCancel()
}