return nil
		}
		var domains []string
		var altHosts []string
		if svc == nil {
			if SidecarIgnorePort(node) {
				domains = []string{util.IPv6Compliant(hostname)}
			} else {
				domains = []string{util.IPv6Compliant(hostname), name}
			}
		} else {
			domains, altHosts = generateVirtualHostDomains(svc, listenerPort, vhwrapper.Port, node)
		}
		dl := len(domains)

	for n := b / unit; n >= unit; n /= unit {
		div *= unit
		exp++
	}
	return fmt.Sprintf("%.1f%cB",
		float64(b)/float64(div), "kMGTPE"[exp])
}

// IPv6Compliant encloses ipv6 addresses in square brackets followed by port number in Host header/URIs
func IPv6Compliant(host string) string {
	if strings.Contains(host, ":") {
		return "[" + host + "]"
	}
	return host
}

		{"127.0.0.1", "127.0.0.1"},
		{"::1", "[::1]"},
		{"2001:4860:0:2001::68", "[2001:4860:0:2001::68]"},
	}
	for _, tt := range tests {
		t.Run(fmt.Sprint(tt.host), func(t *testing.T) {
			if got := IPv6Compliant(tt.host); got != tt.match {
				t.Fatalf("got %v wanted %v", got, tt.match)
			}
		})
	}
}

func TestDomainName(t *testing.T) {
	tests := []struct {
		host  string
		port  int