package cluster

import (
	"bytes"
	"fmt"

	"istio.io/istio/pkg/kube"
	"istio.io/istio/pkg/test/framework/config"
)

// Map can be given as a shared reference to multiple Topology/Cluster implementations.
// allowing clusters to find each other for lookups of Primary, ConfigCluster, etc.
type Map = map[string]Cluster

func NewTopology(config Config, allClusters Map) Topology {
	return Topology{

  // validity duration so a client must check the delta between the notBefore and
  // and notAfter fields in the issued certificate to determine the actual duration.
  //
  // The v1.22+ in-tree implementations of the well-known Kubernetes signers will
  // honor this field as long as the requested duration is not greater than the
  // maximum duration they will honor per the --cluster-signing-duration CLI