"runtimeHandler": "runtimeHandler specifies the underlying runtime and configuration that the CRI implementation will use to handle pods of this class. The possible values are specific to the node & CRI configuration.  It is assumed that...

*/

package flexvolume

import (
	"k8s.io/klog/v2"

	"k8s.io/kubernetes/pkg/volume"
)

type mounterDefaults flexVolumeMounter

// SetUpAt is part of the volume.Mounter interface.
// This implementation relies on the attacher's device mount path and does a bind mount to dir.
func (f *mounterDefaults) SetUpAt(dir string, mounterArgs volume.MounterArgs) error {
	klog.Warning(logPrefix(f.plugin), "using default SetUpAt to ", dir)

	return &FakeNetwork{
		NetworkInterfaces: make([]net.Interface, 0),
		Address:           make(map[string][]net.Addr),
	}
}

// AddInterfaceAddr create an interface and its associated addresses for FakeNetwork implementation.
func (f *FakeNetwork) AddInterfaceAddr(intf *net.Interface, addrs []net.Addr) {
	f.NetworkInterfaces = append(f.NetworkInterfaces, *intf)
	f.Address[intf.Name] = addrs
}

	NodeUnreachablePodMessage = "Node %v which was running pod %v is unresponsive"
)

// NoMatchError is a typed implementation of the error interface. It indicates a failure to get a matching Node.
type NoMatchError struct {
	addresses []v1.NodeAddress
}

// Error is the implementation of the conventional interface for
// representing an error condition, with the nil value representing no error.

import (
	netutils "k8s.io/utils/net"
)

// LocalTrafficDetector generates iptables or nftables rules to detect traffic from local pods.
type LocalTrafficDetector interface {
	// IsImplemented returns true if the implementation does something, false
	// otherwise. You should not call the other methods if IsImplemented() returns
	// false.
	IsImplemented() bool

	// IfLocal returns iptables arguments that will match traffic from a local pod.

	FindDevicesForISCSILun(targetIqn string, lun int) ([]string, error)
}

type deviceHandler struct {
	getIo IoUtil
}

// NewDeviceHandler Create a new IoHandler implementation
func NewDeviceHandler(io IoUtil) DeviceUtil {
	return &deviceHandler{getIo: io}

	MaxPerPodContainer int

	// Max number of total dead containers, less than zero for no limit.
	MaxContainers int
}

// GC manages garbage collection of dead containers.
//
// Implementation is thread-compatible.
type GC interface {
	// Garbage collect containers.
	GarbageCollect(ctx context.Context) error

import "io"

// LimitWriter is a copy of the standard library ioutils.LimitReader,
// applied to the writer interface.
// LimitWriter returns a Writer that writes to w
// but stops with EOF after n bytes.
// The underlying implementation is a *LimitedWriter.
func LimitWriter(w io.Writer, n int64) io.Writer { return &LimitedWriter{w, n} }

// A LimitedWriter writes to W but limits the amount of
// data returned to just N bytes. Each call to Write

	"fmt"
	"strings"

	"k8s.io/apimachinery/pkg/util/errors"
	auditinternal "k8s.io/apiserver/pkg/apis/audit"
)

// Union returns an audit Backend which logs events to a set of backends. The returned
// Sink implementation blocks in turn for each call to ProcessEvents.
func Union(backends ...Backend) Backend {
	if len(backends) == 1 {
		return backends[0]
	}
	return union{backends}
}

type union struct {
	backends []Backend

// walkFunc may remove the given request from the fifo,
// but may not mutate the fifo in any othe way.
type walkFunc func(*request) (ok bool)

// Internal interface to abstract out the implementation details
// of the underlying list used to maintain the requests.
//
// Note that a fifo, including the removeFromFIFOFuncs returned from Enqueue,
// is not safe for concurrent use by multiple goroutines.