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Update go dependencies for kubernetes 1.16.0

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Manuel Alejandro de Brito Fontes 2019-09-19 11:01:00 -03:00
parent 280920980d
commit d7b530cb0a
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510 changed files with 107206 additions and 52551 deletions
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163
vendor/k8s.io/kubernetes/pkg/util/mount/mount.go generated vendored
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@ -16,103 +16,44 @@ limitations under the License.
// TODO(thockin): This whole pkg is pretty linux-centric. As soon as we have
// an alternate platform, we will need to abstract further.
package mount
import (
"fmt"
"os"
"path/filepath"
"strings"
)
type FileType string
const (
// Default mount command if mounter path is not specified
defaultMountCommand = "mount"
FileTypeDirectory FileType = "Directory"
FileTypeFile FileType = "File"
FileTypeSocket FileType = "Socket"
FileTypeCharDev FileType = "CharDevice"
FileTypeBlockDev FileType = "BlockDevice"
// Default mount command if mounter path is not specified.
defaultMountCommand = "mount"
)
// Interface defines the set of methods to allow for mount operations on a system.
type Interface interface {
// Mount mounts source to target as fstype with given options.
Mount(source string, target string, fstype string, options []string) error
// Unmount unmounts given target.
Unmount(target string) error
// List returns a list of all mounted filesystems. This can be large.
// On some platforms, reading mounts is not guaranteed consistent (i.e.
// it could change between chunked reads). This is guaranteed to be
// consistent.
// On some platforms, reading mounts directly from the OS is not guaranteed
// consistent (i.e. it could change between chunked reads). This is guaranteed
// to be consistent.
List() ([]MountPoint, error)
// IsMountPointMatch determines if the mountpoint matches the dir
IsMountPointMatch(mp MountPoint, dir string) bool
// IsLikelyNotMountPoint uses heuristics to determine if a directory
// is a mountpoint.
// is not a mountpoint.
// It should return ErrNotExist when the directory does not exist.
// IsLikelyNotMountPoint does NOT properly detect all mountpoint types
// most notably linux bind mounts and symbolic link.
IsLikelyNotMountPoint(file string) (bool, error)
// DeviceOpened determines if the device is in use elsewhere
// on the system, i.e. still mounted.
DeviceOpened(pathname string) (bool, error)
// PathIsDevice determines if a path is a device.
PathIsDevice(pathname string) (bool, error)
// GetDeviceNameFromMount finds the device name by checking the mount path
// to get the global mount path within its plugin directory
GetDeviceNameFromMount(mountPath, pluginMountDir string) (string, error)
// MakeRShared checks that given path is on a mount with 'rshared' mount
// propagation. If not, it bind-mounts the path as rshared.
MakeRShared(path string) error
// GetFileType checks for file/directory/socket/block/character devices.
// Will operate in the host mount namespace if kubelet is running in a container
GetFileType(pathname string) (FileType, error)
// MakeFile creates an empty file.
// Will operate in the host mount namespace if kubelet is running in a container
MakeFile(pathname string) error
// MakeDir creates a new directory.
// Will operate in the host mount namespace if kubelet is running in a container
MakeDir(pathname string) error
// Will operate in the host mount namespace if kubelet is running in a container.
// Error is returned on any other error than "file not found".
ExistsPath(pathname string) (bool, error)
// EvalHostSymlinks returns the path name after evaluating symlinks.
// Will operate in the host mount namespace if kubelet is running in a container.
EvalHostSymlinks(pathname string) (string, error)
// 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).
GetMountRefs(pathname string) ([]string, error)
// GetFSGroup returns FSGroup of the path.
GetFSGroup(pathname string) (int64, error)
// GetSELinuxSupport returns true if given path is on a mount that supports
// SELinux.
GetSELinuxSupport(pathname string) (bool, error)
// GetMode returns permissions of the path.
GetMode(pathname string) (os.FileMode, error)
}
type Subpath struct {
// index of the VolumeMount for this container
VolumeMountIndex int
// Full path to the subpath directory on the host
Path string
// name of the volume that is a valid directory name.
VolumeName string
// Full path to the volume path
VolumePath string
// Path to the pod's directory, including pod UID
PodDir string
// Name of the container
ContainerName string
}
// Exec executes command where mount utilities are. This can be either the host,
// container where kubelet runs or even a remote pod with mount utilities.
// Usual k8s.io/utils/exec interface is not used because kubelet.RunInContainer does
// not provide stdin/stdout/stderr streams.
// Exec is an interface for executing commands on systems.
type Exec interface {
// Run executes a command and returns its stdout + stderr combined in one
// stream.
@ -120,10 +61,10 @@ type Exec interface {
}
// Compile-time check to ensure all Mounter implementations satisfy
// the mount interface
// the mount interface.
var _ Interface = &Mounter{}
// This represents a single line in /proc/mounts or /etc/fstab.
// MountPoint represents a single line in /proc/mounts or /etc/fstab.
type MountPoint struct {
Device string
Path string
@ -159,7 +100,7 @@ func getMountRefsByDev(mounter Interface, mountPath string) ([]string, error) {
return nil, err
}
// Finding the device mounted to mountPath
// Finding the device mounted to mountPath.
diskDev := ""
for i := range mps {
if mountPath == mps[i].Path {
@ -180,8 +121,8 @@ func getMountRefsByDev(mounter Interface, mountPath string) ([]string, error) {
return refs, nil
}
// GetDeviceNameFromMount: given a mnt point, find the device from /proc/mounts
// returns the device name, reference count, and error code
// GetDeviceNameFromMount given a mnt point, find the device from /proc/mounts
// returns the device name, reference count, and error code.
func GetDeviceNameFromMount(mounter Interface, mountPath string) (string, int, error) {
mps, err := mounter.List()
if err != nil {
@ -189,7 +130,7 @@ func GetDeviceNameFromMount(mounter Interface, mountPath string) (string, int, e
}
// Find the device name.
// FIXME if multiple devices mounted on the same mount path, only the first one is returned
// FIXME if multiple devices mounted on the same mount path, only the first one is returned.
device := ""
// If mountPath is symlink, need get its target path.
slTarget, err := filepath.EvalSymlinks(mountPath)
@ -219,10 +160,10 @@ func GetDeviceNameFromMount(mounter Interface, mountPath string) (string, int, e
// IsNotMountPoint detects bind mounts in linux.
// IsNotMountPoint enumerates all the mountpoints using List() and
// the list of mountpoints may be large, then it uses
// IsMountPointMatch to evaluate whether the directory is a mountpoint
// isMountPointMatch to evaluate whether the directory is a mountpoint.
func IsNotMountPoint(mounter Interface, file string) (bool, error) {
// IsLikelyNotMountPoint provides a quick check
// to determine whether file IS A mountpoint
// to determine whether file IS A mountpoint.
notMnt, notMntErr := mounter.IsLikelyNotMountPoint(file)
if notMntErr != nil && os.IsPermission(notMntErr) {
// We were not allowed to do the simple stat() check, e.g. on NFS with
@ -233,25 +174,25 @@ func IsNotMountPoint(mounter Interface, file string) (bool, error) {
if notMntErr != nil {
return notMnt, notMntErr
}
// identified as mountpoint, so return this fact
// identified as mountpoint, so return this fact.
if notMnt == false {
return notMnt, nil
}
// Resolve any symlinks in file, kernel would do the same and use the resolved path in /proc/mounts
resolvedFile, err := mounter.EvalHostSymlinks(file)
// Resolve any symlinks in file, kernel would do the same and use the resolved path in /proc/mounts.
resolvedFile, err := filepath.EvalSymlinks(file)
if err != nil {
return true, err
}
// check all mountpoints since IsLikelyNotMountPoint
// is not reliable for some mountpoint types
// is not reliable for some mountpoint types.
mountPoints, mountPointsErr := mounter.List()
if mountPointsErr != nil {
return notMnt, mountPointsErr
}
for _, mp := range mountPoints {
if mounter.IsMountPointMatch(mp, resolvedFile) {
if isMountPointMatch(mp, resolvedFile) {
notMnt = false
break
}
@ -259,11 +200,11 @@ func IsNotMountPoint(mounter Interface, file string) (bool, error) {
return notMnt, nil
}
// IsBind detects whether a bind mount is being requested and makes the remount options to
// MakeBindOpts detects whether a bind mount is being requested and makes the remount options to
// use in case of bind mount, due to the fact that bind mount doesn't respect mount options.
// The list equals:
// options - 'bind' + 'remount' (no duplicate)
func IsBind(options []string) (bool, []string, []string) {
func MakeBindOpts(options []string) (bool, []string, []string) {
// Because we have an FD opened on the subpath bind mount, the "bind" option
// needs to be included, otherwise the mount target will error as busy if you
// remount as readonly.
@ -304,24 +245,6 @@ func checkForNetDev(options []string) bool {
return false
}
// TODO: this is a workaround for the unmount device issue caused by gci mounter.
// In GCI cluster, if gci mounter is used for mounting, the container started by mounter
// script will cause additional mounts created in the container. Since these mounts are
// irrelevant to the original mounts, they should be not considered when checking the
// mount references. Current solution is to filter out those mount paths that contain
// the string of original mount path.
// Plan to work on better approach to solve this issue.
func HasMountRefs(mountPath string, mountRefs []string) bool {
count := 0
for _, ref := range mountRefs {
if !strings.Contains(ref, mountPath) {
count = count + 1
}
}
return count > 0
}
// PathWithinBase checks if give path is within given base directory.
func PathWithinBase(fullPath, basePath string) bool {
rel, err := filepath.Rel(basePath, fullPath)
@ -329,48 +252,14 @@ func PathWithinBase(fullPath, basePath string) bool {
return false
}
if StartsWithBackstep(rel) {
// Needed to escape the base path
// Needed to escape the base path.
return false
}
return true
}
// StartsWithBackstep checks if the given path starts with a backstep segment
// StartsWithBackstep checks if the given path starts with a backstep segment.
func StartsWithBackstep(rel string) bool {
// normalize to / and check for ../
return rel == ".." || strings.HasPrefix(filepath.ToSlash(rel), "../")
}
// getFileType checks for file/directory/socket and block/character devices
func getFileType(pathname string) (FileType, error) {
var pathType FileType
info, err := os.Stat(pathname)
if os.IsNotExist(err) {
return pathType, fmt.Errorf("path %q does not exist", pathname)
}
// err in call to os.Stat
if err != nil {
return pathType, err
}
// checks whether the mode is the target mode
isSpecificMode := func(mode, targetMode os.FileMode) bool {
return mode&targetMode == targetMode
}
mode := info.Mode()
if mode.IsDir() {
return FileTypeDirectory, nil
} else if mode.IsRegular() {
return FileTypeFile, nil
} else if isSpecificMode(mode, os.ModeSocket) {
return FileTypeSocket, nil
} else if isSpecificMode(mode, os.ModeDevice) {
if isSpecificMode(mode, os.ModeCharDevice) {
return FileTypeCharDev, nil
}
return FileTypeBlockDev, nil
}
return pathType, fmt.Errorf("only recognise file, directory, socket, block device and character device")
}