pushVersion atomic.Uint64

	// DiscoveryStartTime is the time since the binary started
	DiscoveryStartTime time.Time
}

// NewDiscoveryServer creates DiscoveryServer that sources data from Pilot's internal mesh data structures
func NewDiscoveryServer(env *model.Environment, clusterAliases map[string]string) *DiscoveryServer {
	out := &DiscoveryServer{
		Env:                 env,

	m := opts.MeshConfig
	if m == nil {
		m = mesh.DefaultMeshConfig()
	}

	// Init with a dummy environment, since we have a circular dependency with the env creation.
	s := xds.NewDiscoveryServer(model.NewEnvironment(), map[string]string{})
	// Disable debounce to reduce test times
	s.DebounceOptions.DebounceAfter = opts.DebounceTime
	// Setup time to Now instead of process start to make logs not misleading

	// Apply custom initialization functions.
	for _, fn := range initFuncs {
		fn(s)
	}
	// Initialize workload Trust Bundle before XDS Server
	e.TrustBundle = s.workloadTrustBundle
	s.XDSServer = xds.NewDiscoveryServer(e, args.RegistryOptions.KubeOptions.ClusterAliases)
	configGen := core.NewConfigGenerator(s.XDSServer.Cache)

	grpcprom.EnableHandlingTimeHistogram()