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Remove nsenter packages from vendor

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Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2019-09-20 16:15:13 +05:30
committed by mergify[bot]
parent 70d49b4e47
commit d4a67c05f3
246 changed files with 10204 additions and 3356 deletions
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22
vendor/k8s.io/cloud-provider/cloud.go generated vendored
View File

@ -104,6 +104,21 @@ func GetInstanceProviderID(ctx context.Context, cloud Interface, nodeName types.
}
// LoadBalancer is an abstract, pluggable interface for load balancers.
//
// Cloud provider may chose to implement the logic for
// constructing/destroying specific kinds of load balancers in a
// controller separate from the ServiceController. If this is the case,
// then {Ensure,Update}LoadBalancer must return the ImplementedElsewhere error.
// For the given LB service, the GetLoadBalancer must return "exists=True" if
// there exists a LoadBalancer instance created by ServiceController.
// In all other cases, GetLoadBalancer must return a NotFound error.
// EnsureLoadBalancerDeleted must not return ImplementedElsewhere to ensure
// proper teardown of resources that were allocated by the ServiceController.
// This can happen if a user changes the type of LB via an update to the resource
// or when migrating from ServiceController to alternate implementation.
// The finalizer on the service will be added and removed by ServiceController
// irrespective of the ImplementedElsewhere error. Additional finalizers for
// LB services must be managed in the alternate implementation.
type LoadBalancer interface {
// TODO: Break this up into different interfaces (LB, etc) when we have more than one type of service
// GetLoadBalancer returns whether the specified load balancer exists, and
@ -199,9 +214,10 @@ type Routes interface {
}
var (
InstanceNotFound = errors.New("instance not found")
DiskNotFound = errors.New("disk is not found")
NotImplemented = errors.New("unimplemented")
DiskNotFound = errors.New("disk is not found")
ImplementedElsewhere = errors.New("implemented by alternate to cloud provider")
InstanceNotFound = errors.New("instance not found")
NotImplemented = errors.New("unimplemented")
)
// Zone represents the location of a particular machine.

124
vendor/k8s.io/klog/klog.go generated vendored
View File

@ -20,17 +20,17 @@
//
// Basic examples:
//
// glog.Info("Prepare to repel boarders")
// klog.Info("Prepare to repel boarders")
//
// glog.Fatalf("Initialization failed: %s", err)
// klog.Fatalf("Initialization failed: %s", err)
//
// See the documentation for the V function for an explanation of these examples:
//
// if glog.V(2) {
// glog.Info("Starting transaction...")
// if klog.V(2) {
// klog.Info("Starting transaction...")
// }
//
// glog.V(2).Infoln("Processed", nItems, "elements")
// klog.V(2).Infoln("Processed", nItems, "elements")
//
// Log output is buffered and written periodically using Flush. Programs
// should call Flush before exiting to guarantee all log output is written.
@ -142,7 +142,7 @@ func (s *severity) Set(value string) error {
if v, ok := severityByName(value); ok {
threshold = v
} else {
v, err := strconv.Atoi(value)
v, err := strconv.ParseInt(value, 10, 32)
if err != nil {
return err
}
@ -226,7 +226,7 @@ func (l *Level) Get() interface{} {
// Set is part of the flag.Value interface.
func (l *Level) Set(value string) error {
v, err := strconv.Atoi(value)
v, err := strconv.ParseInt(value, 10, 32)
if err != nil {
return err
}
@ -294,7 +294,7 @@ func (m *moduleSpec) Set(value string) error {
return errVmoduleSyntax
}
pattern := patLev[0]
v, err := strconv.Atoi(patLev[1])
v, err := strconv.ParseInt(patLev[1], 10, 32)
if err != nil {
return errors.New("syntax error: expect comma-separated list of filename=N")
}
@ -396,30 +396,23 @@ type flushSyncWriter interface {
io.Writer
}
// init sets up the defaults and runs flushDaemon.
func init() {
// Default stderrThreshold is ERROR.
logging.stderrThreshold = errorLog
logging.stderrThreshold = errorLog // Default stderrThreshold is ERROR.
logging.setVState(0, nil, false)
logging.logDir = ""
logging.logFile = ""
logging.logFileMaxSizeMB = 1800
logging.toStderr = true
logging.alsoToStderr = false
logging.skipHeaders = false
logging.addDirHeader = false
logging.skipLogHeaders = false
go logging.flushDaemon()
}
var initDefaultsOnce sync.Once
// InitFlags is for explicitly initializing the flags.
func InitFlags(flagset *flag.FlagSet) {
// Initialize defaults.
initDefaultsOnce.Do(func() {
logging.logDir = ""
logging.logFile = ""
logging.logFileMaxSizeMB = 1800
logging.toStderr = true
logging.alsoToStderr = false
logging.skipHeaders = false
logging.skipLogHeaders = false
})
if flagset == nil {
flagset = flag.CommandLine
}
@ -432,6 +425,7 @@ func InitFlags(flagset *flag.FlagSet) {
flagset.BoolVar(&logging.toStderr, "logtostderr", logging.toStderr, "log to standard error instead of files")
flagset.BoolVar(&logging.alsoToStderr, "alsologtostderr", logging.alsoToStderr, "log to standard error as well as files")
flagset.Var(&logging.verbosity, "v", "number for the log level verbosity")
flagset.BoolVar(&logging.skipHeaders, "add_dir_header", logging.addDirHeader, "If true, adds the file directory to the header")
flagset.BoolVar(&logging.skipHeaders, "skip_headers", logging.skipHeaders, "If true, avoid header prefixes in the log messages")
flagset.BoolVar(&logging.skipLogHeaders, "skip_log_headers", logging.skipLogHeaders, "If true, avoid headers when opening log files")
flagset.Var(&logging.stderrThreshold, "stderrthreshold", "logs at or above this threshold go to stderr")
@ -500,6 +494,9 @@ type loggingT struct {
// If true, do not add the headers to log files
skipLogHeaders bool
// If true, add the file directory to the header
addDirHeader bool
}
// buffer holds a byte Buffer for reuse. The zero value is ready for use.
@ -585,9 +582,14 @@ func (l *loggingT) header(s severity, depth int) (*buffer, string, int) {
file = "???"
line = 1
} else {
slash := strings.LastIndex(file, "/")
if slash >= 0 {
file = file[slash+1:]
if slash := strings.LastIndex(file, "/"); slash >= 0 {
path := file
file = path[slash+1:]
if l.addDirHeader {
if dirsep := strings.LastIndex(path[:slash], "/"); dirsep >= 0 {
file = path[dirsep+1:]
}
}
}
}
return l.formatHeader(s, file, line), file, line
@ -736,6 +738,8 @@ func (rb *redirectBuffer) Write(bytes []byte) (n int, err error) {
// SetOutput sets the output destination for all severities
func SetOutput(w io.Writer) {
logging.mu.Lock()
defer logging.mu.Unlock()
for s := fatalLog; s >= infoLog; s-- {
rb := &redirectBuffer{
w: w,
@ -746,6 +750,8 @@ func SetOutput(w io.Writer) {
// SetOutputBySeverity sets the output destination for specific severity
func SetOutputBySeverity(name string, w io.Writer) {
logging.mu.Lock()
defer logging.mu.Unlock()
sev, ok := severityByName(name)
if !ok {
panic(fmt.Sprintf("SetOutputBySeverity(%q): unrecognized severity name", name))
@ -771,24 +777,38 @@ func (l *loggingT) output(s severity, buf *buffer, file string, line int, alsoTo
if alsoToStderr || l.alsoToStderr || s >= l.stderrThreshold.get() {
os.Stderr.Write(data)
}
if l.file[s] == nil {
if err := l.createFiles(s); err != nil {
os.Stderr.Write(data) // Make sure the message appears somewhere.
l.exit(err)
if logging.logFile != "" {
// Since we are using a single log file, all of the items in l.file array
// will point to the same file, so just use one of them to write data.
if l.file[infoLog] == nil {
if err := l.createFiles(infoLog); err != nil {
os.Stderr.Write(data) // Make sure the message appears somewhere.
l.exit(err)
}
}
}
switch s {
case fatalLog:
l.file[fatalLog].Write(data)
fallthrough
case errorLog:
l.file[errorLog].Write(data)
fallthrough
case warningLog:
l.file[warningLog].Write(data)
fallthrough
case infoLog:
l.file[infoLog].Write(data)
} else {
if l.file[s] == nil {
if err := l.createFiles(s); err != nil {
os.Stderr.Write(data) // Make sure the message appears somewhere.
l.exit(err)
}
}
switch s {
case fatalLog:
l.file[fatalLog].Write(data)
fallthrough
case errorLog:
l.file[errorLog].Write(data)
fallthrough
case warningLog:
l.file[warningLog].Write(data)
fallthrough
case infoLog:
l.file[infoLog].Write(data)
}
}
}
if s == fatalLog {
@ -827,7 +847,7 @@ func (l *loggingT) output(s severity, buf *buffer, file string, line int, alsoTo
// timeoutFlush calls Flush and returns when it completes or after timeout
// elapses, whichever happens first. This is needed because the hooks invoked
// by Flush may deadlock when glog.Fatal is called from a hook that holds
// by Flush may deadlock when klog.Fatal is called from a hook that holds
// a lock.
func timeoutFlush(timeout time.Duration) {
done := make(chan bool, 1)
@ -838,7 +858,7 @@ func timeoutFlush(timeout time.Duration) {
select {
case <-done:
case <-time.After(timeout):
fmt.Fprintln(os.Stderr, "glog: Flush took longer than", timeout)
fmt.Fprintln(os.Stderr, "klog: Flush took longer than", timeout)
}
}
@ -1094,9 +1114,9 @@ type Verbose bool
// The returned value is a boolean of type Verbose, which implements Info, Infoln
// and Infof. These methods will write to the Info log if called.
// Thus, one may write either
// if glog.V(2) { glog.Info("log this") }
// if klog.V(2) { klog.Info("log this") }
// or
// glog.V(2).Info("log this")
// klog.V(2).Info("log this")
// The second form is shorter but the first is cheaper if logging is off because it does
// not evaluate its arguments.
//
@ -1170,7 +1190,7 @@ func InfoDepth(depth int, args ...interface{}) {
}
// Infoln logs to the INFO log.
// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
// Arguments are handled in the manner of fmt.Println; a newline is always appended.
func Infoln(args ...interface{}) {
logging.println(infoLog, args...)
}
@ -1194,7 +1214,7 @@ func WarningDepth(depth int, args ...interface{}) {
}
// Warningln logs to the WARNING and INFO logs.
// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
// Arguments are handled in the manner of fmt.Println; a newline is always appended.
func Warningln(args ...interface{}) {
logging.println(warningLog, args...)
}
@ -1218,7 +1238,7 @@ func ErrorDepth(depth int, args ...interface{}) {
}
// Errorln logs to the ERROR, WARNING, and INFO logs.
// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
// Arguments are handled in the manner of fmt.Println; a newline is always appended.
func Errorln(args ...interface{}) {
logging.println(errorLog, args...)
}
@ -1244,7 +1264,7 @@ func FatalDepth(depth int, args ...interface{}) {
// Fatalln logs to the FATAL, ERROR, WARNING, and INFO logs,
// including a stack trace of all running goroutines, then calls os.Exit(255).
// Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
// Arguments are handled in the manner of fmt.Println; a newline is always appended.
func Fatalln(args ...interface{}) {
logging.println(fatalLog, args...)
}

345
vendor/k8s.io/kubernetes/pkg/volume/util/nsenter/nsenter_mount.go generated vendored
View File

@ -1,345 +0,0 @@
// +build linux
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package nsenter
import (
"fmt"
"os"
"path/filepath"
"strings"
"k8s.io/klog"
"k8s.io/kubernetes/pkg/util/mount"
"k8s.io/utils/nsenter"
utilpath "k8s.io/utils/path"
)
const (
// hostProcMountsPath is the default mount path for rootfs
hostProcMountsPath = "/rootfs/proc/1/mounts"
// hostProcMountinfoPath is the default mount info path for rootfs
hostProcMountinfoPath = "/rootfs/proc/1/mountinfo"
)
// Mounter implements mount.Interface
// Currently, all docker containers receive their own mount namespaces.
// Mounter works by executing nsenter to run commands in
// the host's mount namespace.
type Mounter struct {
ne *nsenter.Nsenter
// rootDir is location of /var/lib/kubelet directory.
rootDir string
}
// NewMounter creates a new mounter for kubelet that runs as a container.
func NewMounter(rootDir string, ne *nsenter.Nsenter) *Mounter {
return &Mounter{
rootDir: rootDir,
ne: ne,
}
}
// Mounter implements mount.Interface
var _ = mount.Interface(&Mounter{})
// Mount runs mount(8) in the host's root mount namespace. Aside from this
// aspect, Mount has the same semantics as the mounter returned by mount.New()
func (n *Mounter) Mount(source string, target string, fstype string, options []string) error {
bind, bindOpts, bindRemountOpts := mount.IsBind(options)
if bind {
err := n.doNsenterMount(source, target, fstype, bindOpts)
if err != nil {
return err
}
return n.doNsenterMount(source, target, fstype, bindRemountOpts)
}
return n.doNsenterMount(source, target, fstype, options)
}
// doNsenterMount nsenters the host's mount namespace and performs the
// requested mount.
func (n *Mounter) doNsenterMount(source, target, fstype string, options []string) error {
klog.V(5).Infof("nsenter mount %s %s %s %v", source, target, fstype, options)
cmd, args := n.makeNsenterArgs(source, target, fstype, options)
outputBytes, err := n.ne.Exec(cmd, args).CombinedOutput()
if len(outputBytes) != 0 {
klog.V(5).Infof("Output of mounting %s to %s: %v", source, target, string(outputBytes))
}
return err
}
// makeNsenterArgs makes a list of argument to nsenter in order to do the
// requested mount.
func (n *Mounter) makeNsenterArgs(source, target, fstype string, options []string) (string, []string) {
mountCmd := n.ne.AbsHostPath("mount")
mountArgs := mount.MakeMountArgs(source, target, fstype, options)
if systemdRunPath, hasSystemd := n.ne.SupportsSystemd(); hasSystemd {
// Complete command line:
// nsenter --mount=/rootfs/proc/1/ns/mnt -- /bin/systemd-run --description=... --scope -- /bin/mount -t <type> <what> <where>
// Expected flow is:
// * nsenter breaks out of container's mount namespace and executes
// host's systemd-run.
// * systemd-run creates a transient scope (=~ cgroup) and executes its
// argument (/bin/mount) there.
// * mount does its job, forks a fuse daemon if necessary and finishes.
// (systemd-run --scope finishes at this point, returning mount's exit
// code and stdout/stderr - thats one of --scope benefits).
// * systemd keeps the fuse daemon running in the scope (i.e. in its own
// cgroup) until the fuse daemon dies (another --scope benefit).
// Kubelet container can be restarted and the fuse daemon survives.
// * When the daemon dies (e.g. during unmount) systemd removes the
// scope automatically.
mountCmd, mountArgs = mount.AddSystemdScope(systemdRunPath, target, mountCmd, mountArgs)
} else {
// Fall back to simple mount when the host has no systemd.
// Complete command line:
// nsenter --mount=/rootfs/proc/1/ns/mnt -- /bin/mount -t <type> <what> <where>
// Expected flow is:
// * nsenter breaks out of container's mount namespace and executes host's /bin/mount.
// * mount does its job, forks a fuse daemon if necessary and finishes.
// * Any fuse daemon runs in cgroup of kubelet docker container,
// restart of kubelet container will kill it!
// No code here, mountCmd and mountArgs use /bin/mount
}
return mountCmd, mountArgs
}
// Unmount runs umount(8) in the host's mount namespace.
func (n *Mounter) Unmount(target string) error {
args := []string{target}
// No need to execute systemd-run here, it's enough that unmount is executed
// in the host's mount namespace. It will finish appropriate fuse daemon(s)
// running in any scope.
klog.V(5).Infof("nsenter unmount args: %v", args)
outputBytes, err := n.ne.Exec("umount", args).CombinedOutput()
if len(outputBytes) != 0 {
klog.V(5).Infof("Output of unmounting %s: %v", target, string(outputBytes))
}
return err
}
// List returns a list of all mounted filesystems in the host's mount namespace.
func (*Mounter) List() ([]mount.MountPoint, error) {
return mount.ListProcMounts(hostProcMountsPath)
}
// IsMountPointMatch tests if dir and mp are the same path
func (*Mounter) IsMountPointMatch(mp mount.MountPoint, dir string) bool {
deletedDir := fmt.Sprintf("%s\\040(deleted)", dir)
return (mp.Path == dir) || (mp.Path == deletedDir)
}
// IsLikelyNotMountPoint determines whether a path is a mountpoint by calling findmnt
// in the host's root mount namespace.
func (n *Mounter) IsLikelyNotMountPoint(file string) (bool, error) {
file, err := filepath.Abs(file)
if err != nil {
return true, err
}
// Check the directory exists
if _, err = os.Stat(file); os.IsNotExist(err) {
klog.V(5).Infof("findmnt: directory %s does not exist", file)
return true, err
}
// Resolve any symlinks in file, kernel would do the same and use the resolved path in /proc/mounts
resolvedFile, err := n.EvalHostSymlinks(file)
if err != nil {
return true, err
}
// Add --first-only option: since we are testing for the absence of a mountpoint, it is sufficient to get only
// the first of multiple possible mountpoints using --first-only.
// Also add fstype output to make sure that the output of target file will give the full path
// TODO: Need more refactoring for this function. Track the solution with issue #26996
args := []string{"-o", "target,fstype", "--noheadings", "--first-only", "--target", resolvedFile}
klog.V(5).Infof("nsenter findmnt args: %v", args)
out, err := n.ne.Exec("findmnt", args).CombinedOutput()
if err != nil {
klog.V(2).Infof("Failed findmnt command for path %s: %s %v", resolvedFile, out, err)
// Different operating systems behave differently for paths which are not mount points.
// On older versions (e.g. 2.20.1) we'd get error, on newer ones (e.g. 2.26.2) we'd get "/".
// It's safer to assume that it's not a mount point.
return true, nil
}
mountTarget, err := parseFindMnt(string(out))
if err != nil {
return false, err
}
klog.V(5).Infof("IsLikelyNotMountPoint findmnt output for path %s: %v:", resolvedFile, mountTarget)
if mountTarget == resolvedFile {
klog.V(5).Infof("IsLikelyNotMountPoint: %s is a mount point", resolvedFile)
return false, nil
}
klog.V(5).Infof("IsLikelyNotMountPoint: %s is not a mount point", resolvedFile)
return true, nil
}
// parse output of "findmnt -o target,fstype" and return just the target
func parseFindMnt(out string) (string, error) {
// cut trailing newline
out = strings.TrimSuffix(out, "\n")
// cut everything after the last space - it's the filesystem type
i := strings.LastIndex(out, " ")
if i == -1 {
return "", fmt.Errorf("error parsing findmnt output, expected at least one space: %q", out)
}
return out[:i], nil
}
// DeviceOpened checks if block device in use by calling Open with O_EXCL flag.
// Returns true if open returns errno EBUSY, and false if errno is nil.
// Returns an error if errno is any error other than EBUSY.
// Returns with error if pathname is not a device.
func (n *Mounter) DeviceOpened(pathname string) (bool, error) {
return mount.ExclusiveOpenFailsOnDevice(pathname)
}
// PathIsDevice uses FileInfo returned from os.Stat to check if path refers
// to a device.
func (n *Mounter) PathIsDevice(pathname string) (bool, error) {
pathType, err := n.GetFileType(pathname)
isDevice := pathType == mount.FileTypeCharDev || pathType == mount.FileTypeBlockDev
return isDevice, err
}
//GetDeviceNameFromMount given a mount point, find the volume id from checking /proc/mounts
func (n *Mounter) GetDeviceNameFromMount(mountPath, pluginMountDir string) (string, error) {
return mount.GetDeviceNameFromMountLinux(n, mountPath, pluginMountDir)
}
// MakeRShared checks if path is shared and bind-mounts it as rshared if needed.
func (n *Mounter) MakeRShared(path string) error {
return mount.DoMakeRShared(path, hostProcMountinfoPath)
}
// GetFileType checks for file/directory/socket/block/character devices.
func (n *Mounter) GetFileType(pathname string) (mount.FileType, error) {
var pathType mount.FileType
outputBytes, err := n.ne.Exec("stat", []string{"-L", "--printf=%F", pathname}).CombinedOutput()
if err != nil {
if strings.Contains(string(outputBytes), "No such file") {
err = fmt.Errorf("%s does not exist", pathname)
} else {
err = fmt.Errorf("stat %s error: %v", pathname, string(outputBytes))
}
return pathType, err
}
switch string(outputBytes) {
case "socket":
return mount.FileTypeSocket, nil
case "character special file":
return mount.FileTypeCharDev, nil
case "block special file":
return mount.FileTypeBlockDev, nil
case "directory":
return mount.FileTypeDirectory, nil
case "regular file", "regular empty file":
return mount.FileTypeFile, nil
}
return pathType, fmt.Errorf("only recognise file, directory, socket, block device and character device")
}
// MakeDir creates a new directory.
func (n *Mounter) MakeDir(pathname string) error {
args := []string{"-p", pathname}
if _, err := n.ne.Exec("mkdir", args).CombinedOutput(); err != nil {
return err
}
return nil
}
// MakeFile creates an empty file.
func (n *Mounter) MakeFile(pathname string) error {
args := []string{pathname}
if _, err := n.ne.Exec("touch", args).CombinedOutput(); err != nil {
return err
}
return nil
}
// ExistsPath checks if pathname exists.
// Error is returned on any other error than "file not found".
func (n *Mounter) ExistsPath(pathname string) (bool, error) {
// Resolve the symlinks but allow the target not to exist. EvalSymlinks
// would return an generic error when the target does not exist.
hostPath, err := n.ne.EvalSymlinks(pathname, false /* mustExist */)
if err != nil {
return false, err
}
kubeletpath := n.ne.KubeletPath(hostPath)
return utilpath.Exists(utilpath.CheckFollowSymlink, kubeletpath)
}
// EvalHostSymlinks returns the path name after evaluating symlinks.
func (n *Mounter) EvalHostSymlinks(pathname string) (string, error) {
return n.ne.EvalSymlinks(pathname, true)
}
// GetMountRefs finds all mount references to the path, returns a
// list of paths. Path could be a mountpoint path, device or a normal
// directory (for bind mount).
func (n *Mounter) GetMountRefs(pathname string) ([]string, error) {
pathExists, pathErr := mount.PathExists(pathname)
if !pathExists || mount.IsCorruptedMnt(pathErr) {
return []string{}, nil
} else if pathErr != nil {
return nil, fmt.Errorf("Error checking path %s: %v", pathname, pathErr)
}
hostpath, err := n.ne.EvalSymlinks(pathname, true /* mustExist */)
if err != nil {
return nil, err
}
return mount.SearchMountPoints(hostpath, hostProcMountinfoPath)
}
// GetFSGroup returns FSGroup of pathname.
func (n *Mounter) GetFSGroup(pathname string) (int64, error) {
hostPath, err := n.ne.EvalSymlinks(pathname, true /* mustExist */)
if err != nil {
return -1, err
}
kubeletpath := n.ne.KubeletPath(hostPath)
return mount.GetFSGroupLinux(kubeletpath)
}
// GetSELinuxSupport tests if pathname is on a mount that supports SELinux.
func (n *Mounter) GetSELinuxSupport(pathname string) (bool, error) {
return mount.GetSELinux(pathname, hostProcMountsPath)
}
// GetMode returns permissions of pathname.
func (n *Mounter) GetMode(pathname string) (os.FileMode, error) {
hostPath, err := n.ne.EvalSymlinks(pathname, true /* mustExist */)
if err != nil {
return 0, err
}
kubeletpath := n.ne.KubeletPath(hostPath)
return mount.GetModeLinux(kubeletpath)
}

139
vendor/k8s.io/kubernetes/pkg/volume/util/nsenter/nsenter_mount_unsupported.go generated vendored
View File

@ -1,139 +0,0 @@
// +build !linux
/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package nsenter
import (
"errors"
"os"
"k8s.io/utils/nsenter"
"k8s.io/kubernetes/pkg/util/mount"
)
// Mounter provides the mount.Interface implementation for unsupported
// platforms.
type Mounter struct{}
// NewMounter returns a new Mounter for the current system
func NewMounter(rootDir string, ne *nsenter.Nsenter) *Mounter {
return &Mounter{}
}
var _ = mount.Interface(&Mounter{})
// Mount mounts the source to the target. It is a noop for unsupported systems
func (*Mounter) Mount(source string, target string, fstype string, options []string) error {
return nil
}
// Unmount unmounts the target path from the system. it is a noop for unsupported
// systems
func (*Mounter) Unmount(target string) error {
return nil
}
// List returns a list of all mounted filesystems. It is a noop for unsupported systems
func (*Mounter) List() ([]mount.MountPoint, error) {
return []mount.MountPoint{}, nil
}
// IsMountPointMatch tests if dir and mp are the same path
func (*Mounter) IsMountPointMatch(mp mount.MountPoint, dir string) bool {
return (mp.Path == dir)
}
// IsLikelyNotMountPoint determines if a directory is not a mountpoint.
// It is a noop on unsupported systems
func (*Mounter) IsLikelyNotMountPoint(file string) (bool, error) {
return true, nil
}
// DeviceOpened checks if block device in use. I tis a noop for unsupported systems
func (*Mounter) DeviceOpened(pathname string) (bool, error) {
return false, nil
}
// PathIsDevice checks if pathname refers to a device. It is a noop for unsupported
// systems
func (*Mounter) PathIsDevice(pathname string) (bool, error) {
return true, nil
}
// GetDeviceNameFromMount finds the device name from its global mount point using the
// given mountpath and plugin location. It is a noop of unsupported platforms
func (*Mounter) GetDeviceNameFromMount(mountPath, pluginMountDir string) (string, error) {
return "", nil
}
// MakeRShared checks if path is shared and bind-mounts it as rshared if needed.
// It is a noop on unsupported platforms
func (*Mounter) MakeRShared(path string) error {
return nil
}
// GetFileType checks for file/directory/socket/block/character devices.
// Always returns an error and "fake" filetype on unsupported platforms
func (*Mounter) GetFileType(_ string) (mount.FileType, error) {
return mount.FileType("fake"), errors.New("not implemented")
}
// MakeDir creates a new directory. Noop on unsupported platforms
func (*Mounter) MakeDir(pathname string) error {
return nil
}
// MakeFile creats an empty file. Noop on unsupported platforms
func (*Mounter) MakeFile(pathname string) error {
return nil
}
// ExistsPath checks if pathname exists. Always returns an error on unsupported
// platforms
func (*Mounter) ExistsPath(pathname string) (bool, error) {
return true, errors.New("not implemented")
}
// EvalHostSymlinks returns the path name after evaluating symlinks. Always
// returns an error on unsupported platforms
func (*Mounter) EvalHostSymlinks(pathname string) (string, error) {
return "", errors.New("not implemented")
}
// GetMountRefs finds all mount references to the path, returns a
// list of paths. Always returns an error on unsupported platforms
func (*Mounter) GetMountRefs(pathname string) ([]string, error) {
return nil, errors.New("not implemented")
}
// GetFSGroup returns FSGroup of pathname. Always returns an error on unsupported platforms
func (*Mounter) GetFSGroup(pathname string) (int64, error) {
return -1, errors.New("not implemented")
}
// GetSELinuxSupport tests if pathname is on a mount that supports SELinux.
// Always returns an error on unsupported platforms
func (*Mounter) GetSELinuxSupport(pathname string) (bool, error) {
return false, errors.New("not implemented")
}
// GetMode returns permissions of pathname. Always returns an error on unsupported platforms
func (*Mounter) GetMode(pathname string) (os.FileMode, error) {
return 0, errors.New("not implemented")
}

49
vendor/k8s.io/utils/net/net.go generated vendored
View File

@ -17,8 +17,11 @@ limitations under the License.
package net
import (
"errors"
"fmt"
"math/big"
"net"
"strconv"
)
// ParseCIDRs parses a list of cidrs and return error if any is invalid.
@ -132,3 +135,49 @@ func IsIPv6CIDR(cidr *net.IPNet) bool {
ip := cidr.IP
return IsIPv6(ip)
}
// ParsePort parses a string representing an IP port. If the string is not a
// valid port number, this returns an error.
func ParsePort(port string, allowZero bool) (int, error) {
portInt, err := strconv.ParseUint(port, 10, 16)
if err != nil {
return 0, err
}
if portInt == 0 && !allowZero {
return 0, errors.New("0 is not a valid port number")
}
return int(portInt), nil
}
// BigForIP creates a big.Int based on the provided net.IP
func BigForIP(ip net.IP) *big.Int {
b := ip.To4()
if b == nil {
b = ip.To16()
}
return big.NewInt(0).SetBytes(b)
}
// AddIPOffset adds the provided integer offset to a base big.Int representing a
// net.IP
func AddIPOffset(base *big.Int, offset int) net.IP {
return net.IP(big.NewInt(0).Add(base, big.NewInt(int64(offset))).Bytes())
}
// RangeSize returns the size of a range in valid addresses.
func RangeSize(subnet *net.IPNet) int64 {
ones, bits := subnet.Mask.Size()
if bits == 32 && (bits-ones) >= 31 || bits == 128 && (bits-ones) >= 127 {
return 0
}
return int64(1) << uint(bits-ones)
}
// GetIndexedIP returns a net.IP that is subnet.IP + index in the contiguous IP space.
func GetIndexedIP(subnet *net.IPNet, index int) (net.IP, error) {
ip := AddIPOffset(BigForIP(subnet.IP), index)
if !subnet.Contains(ip) {
return nil, fmt.Errorf("can't generate IP with index %d from subnet. subnet too small. subnet: %q", index, subnet)
}
return ip, nil
}