string(got), err, expected)
	}

	// Slow client that should timeout.
	t1 := time.Now()
	conn, err := net.Dial("tcp", ts.Listener.Addr().String())
	if err != nil {
		return fmt.Errorf("Dial: %v", err)
	}
	buf := make([]byte, 1)
	n, err := conn.Read(buf)
	conn.Close()
	latency := time.Since(t1)
	if n != 0 || err != io.EOF {

		Help:      "Total number of internode TCP dial timeouts and errors",
		Type:      counterMetric,
	}
}

func getInternodeTCPAvgDuration() MetricDescription {
	return MetricDescription{
		Namespace: interNodeMetricNamespace,
		Subsystem: trafficSubsystem,
		Name:      "dial_avg_time",
		Help:      "Average time of internodes TCP dial calls",
		Type:      gaugeMetric,
	}
}

	// Addr optionally specifies the TCP address for the server to listen on,
	// in the form "host:port". If empty, ":http" (port 80) is used.
	// The service names are defined in RFC 6335 and assigned by IANA.
	// See net.Dial for details of the address format.
	Addr string

	Handler Handler // handler to invoke, http.DefaultServeMux if nil

	// DisableGeneralOptionsHandler, if true, passes "OPTIONS *" requests to the Handler,

				{IP: "10.0.0.1"},
			},
		},
		{
			name: "Single-stack addresses in dual-stack cluster",
			nodeAddresses: []v1.NodeAddress{
				{Type: v1.NodeInternalIP, Address: "10.0.0.1"},
			},
			podIPs: []v1.PodIP{
				{IP: "10.0.0.1"},
			},
		},
		{
			name: "Multiple single-stack addresses in dual-stack cluster",
			nodeAddresses: []v1.NodeAddress{

			expectedAddr:    "::1",
			expectedPort:    7073,
		}, // dual-stack use cases
		{
			name:            "dual-stack host: defaultEndpoint set to 127.0.0.1:7073",
			proxy:           &dsProxy,
			defaultEndpoint: "127.0.0.1:7073",
			expectedAddr:    "127.0.0.1",
			expectedPort:    7073,
		},
		{
			name:            "dual-stack host: defaultEndpoint set to [::1]:7073",
			proxy:           &dsProxy,

		expectedFamily cluster.Cluster_DnsLookupFamily
	}{
		{
			name:           "all ipv4, dual stack disabled",
			clusterName:    "foo",
			discovery:      cluster.Cluster_STRICT_DNS,
			proxy:          getProxy(),
			dualStack:      false,
			expectedFamily: cluster.Cluster_V4_ONLY,
		},
		{
			name:           "all ipv4, dual stack enabled",
			clusterName:    "foo",
			discovery:      cluster.Cluster_STRICT_DNS,

}

// makeHostsMount makes the mountpoint for the hosts file that the containers
// in a pod are injected with. podIPs is provided instead of podIP as podIPs
// are present even if dual-stack feature flag is not enabled.
func makeHostsMount(podDir string, podIPs []string, hostName, hostDomainName string, hostAliases []v1.HostAlias, useHostNetwork bool) (*kubecontainer.Mount, error) {

//	Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is