ctx           resource.Context
	grpcPort      uint16
	tls           *echoCommon.TLSSettings
	closing       bool
	stopCh        chan struct{}
	handler       workloadHandler
}

func newWorkloadManager(ctx resource.Context, cfg echo.Config, handler workloadHandler) (*workloadManager, error) {
	// Get the gRPC port and TLS settings.
	var grpcInstancePort int
	var tls *echoCommon.TLSSettings
	if cfg.IsProxylessGRPC() {