func (s *ProxyServer) platformSetup(ctx context.Context) error {
	// Preserve backward-compatibility with the old secondary IP behavior
	if s.PrimaryIPFamily == v1.IPv4Protocol {
		s.NodeIPs[v1.IPv6Protocol] = net.IPv6zero
	} else {
		s.NodeIPs[v1.IPv4Protocol] = net.IPv4zero
	}
	return nil
}

// platformCheckSupported is called immediately before creating the Proxier, to check

		return nil, fmt.Errorf("host IP unknown; known addresses: %v", node.Status.Addresses)
	}

	nodeIPs := []net.IP{allIPs[0]}
	for _, ip := range allIPs {
		if netutils.IsIPv6(ip) != netutils.IsIPv6(nodeIPs[0]) {
			nodeIPs = append(nodeIPs, ip)
			break
		}
	}

	return nodeIPs, nil
}

// GetNodeHostIP returns the provided node's "primary" IP; see GetNodeHostIPs for more details

	// It doesn't matter whether we listen on "0.0.0.0", "::", or ""; go
	// treats them all the same.
	nodeIPs := []net.IP{net.IPv4zero}

	if !nodePortAddresses.MatchAll() {
		ips, err := nodePortAddresses.GetNodeIPs(proxyutil.RealNetwork{})
		if err == nil {
			nodeIPs = ips
		} else {

				}
			} else if tc.expectIPs == nil {
				t.Errorf("expected error, got %v", nodeIPs)
			} else if !reflect.DeepEqual(nodeIPs, tc.expectIPs) {
				t.Errorf("expected %v, got %v", tc.expectIPs, nodeIPs)
			} else if !nodeIP.Equal(nodeIPs[0]) {
				t.Errorf("GetNodeHostIP did not return same primary (%s) as GetNodeHostIPs (%s)", nodeIP.String(), nodeIPs[0].String())
			}
		})
	}
}

func TestIsNodeReady(t *testing.T) {

	"istio.io/istio/pkg/log"
)

type envoy struct {
	ProxyConfig
	extraArgs []string
}

// Envoy binary flags
type ProxyConfig struct {
	LogLevel          string
	ComponentLogLevel string
	NodeIPs           []string
	Sidecar           bool
	LogAsJSON         bool
	OutlierLogPath    string

	BinaryPath    string
	ConfigPath    string
	ConfigCleanup bool
	AdminPort     int32

	proxyConfig.Concurrency = &wrapperspb.Int32Value{Value: 8}

	cfg := ProxyConfig{
		LogLevel:          "trace",
		ComponentLogLevel: "misc:error",
		NodeIPs:           []string{"10.75.2.9", "192.168.11.18"},
		BinaryPath:        proxyConfig.BinaryPath,
		ConfigPath:        proxyConfig.ConfigPath,
		ConfigCleanup:     true,
		AdminPort:         proxyConfig.ProxyAdminPort,

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package syntax

// ----------------------------------------------------------------------------
// Nodes

type Node interface {
	// Pos() returns the position associated with the node as follows:
	// 1) The position of a node representing a terminal syntax production

// Attribute indicating that some ops in this node's XLA computation has control
// dependency on this node. Attribute value will always be "true".
extern const char kXlaConnectedToXlaComputationAttrName[];

// Attribute indicating that this node has control dependency on some ops in
// this node's XLA computation. Attribute value will always be "true".
extern const char kXlaConnectedFromXlaComputationAttrName[];

  public abstract Iterable<T> children(T root);

  /**
   * Returns an unmodifiable iterable over the nodes in a tree structure, using pre-order traversal.
   * That is, each node's subtrees are traversed after the node itself is returned.
   *
   * <p>No guarantees are made about the behavior of the traversal when nodes change while iteration
   * is in progress or when the iterators generated by {@link #children} are advanced.
   *

  public abstract Iterable<T> children(T root);

  /**
   * Returns an unmodifiable iterable over the nodes in a tree structure, using pre-order traversal.
   * That is, each node's subtrees are traversed after the node itself is returned.
   *
   * <p>No guarantees are made about the behavior of the traversal when nodes change while iteration
   * is in progress or when the iterators generated by {@link #children} are advanced.
   *