*: update kube vendor to v1.7.4

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

vendor/k8s.io/kubernetes/pkg/util/mount/fake.go

@@ -124,6 +124,14 @@ func (f *FakeMounter) List() ([]MountPoint, error) {
 	return f.MountPoints, nil
 }
 
+func (f *FakeMounter) IsMountPointMatch(mp MountPoint, dir string) bool {
+	return (mp.Path == dir)
+}
+
+func (f *FakeMounter) IsNotMountPoint(dir string) (bool, error) {
+	return IsNotMountPoint(f, dir)
+}
+
 func (f *FakeMounter) IsLikelyNotMountPoint(file string) (bool, error) {
 	f.mutex.Lock()
 	defer f.mutex.Unlock()

vendor/k8s.io/kubernetes/pkg/util/mount/mount.go

@@ -44,8 +44,21 @@ type Interface interface {
 	// it could change between chunked reads). This is guaranteed to be
 	// consistent.
 	List() ([]MountPoint, error)
-	// IsLikelyNotMountPoint determines if a directory is a mountpoint.
+	// IsMountPointMatch determines if the mountpoint matches the dir
+	IsMountPointMatch(mp MountPoint, dir string) bool
+	// IsNotMountPoint determines if a directory is a mountpoint.
 	// It should return ErrNotExist when the directory does not exist.
+	// IsNotMountPoint is more expensive than IsLikelyNotMountPoint.
+	// 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
+	IsNotMountPoint(file string) (bool, error)
+	// IsLikelyNotMountPoint uses heuristics to determine if a directory
+	// is 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.
 	IsLikelyNotMountPoint(file string) (bool, error)
 	// DeviceOpened determines if the device is in use elsewhere
 	// on the system, i.e. still mounted.
@@ -199,3 +212,34 @@ func getDeviceNameFromMount(mounter Interface, mountPath, pluginDir string) (str
 
 	return path.Base(mountPath), nil
 }
+
+// IsNotMountPoint determines if a directory is a mountpoint.
+// It should return ErrNotExist when the directory does not exist.
+// This method uses the List() of all mountpoints
+// It is more extensive than IsLikelyNotMountPoint
+// and it detects bind mounts in linux
+func IsNotMountPoint(mounter Interface, file string) (bool, error) {
+	// IsLikelyNotMountPoint provides a quick check
+	// to determine whether file IS A mountpoint
+	notMnt, notMntErr := mounter.IsLikelyNotMountPoint(file)
+	if notMntErr != nil {
+		return notMnt, notMntErr
+	}
+	// identified as mountpoint, so return this fact
+	if notMnt == false {
+		return notMnt, nil
+	}
+	// check all mountpoints since IsLikelyNotMountPoint
+	// 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, file) {
+			notMnt = false
+			break
+		}
+	}
+	return notMnt, nil
+}

vendor/k8s.io/kubernetes/pkg/util/mount/mount_linux.go

@@ -161,6 +161,15 @@ func (*Mounter) List() ([]MountPoint, error) {
 	return listProcMounts(procMountsPath)
 }
 
+func (mounter *Mounter) IsMountPointMatch(mp MountPoint, dir string) bool {
+	deletedDir := fmt.Sprintf("%s\\040(deleted)", dir)
+	return ((mp.Path == dir) || (mp.Path == deletedDir))
+}
+
+func (mounter *Mounter) IsNotMountPoint(dir string) (bool, error) {
+	return IsNotMountPoint(mounter, dir)
+}
+
 // IsLikelyNotMountPoint determines if a directory is not a mountpoint.
 // It is fast but not necessarily ALWAYS correct. If the path is in fact
 // a bind mount from one part of a mount to another it will not be detected.
@@ -168,10 +177,6 @@ func (*Mounter) List() ([]MountPoint, error) {
 // will return true. When in fact /tmp/b is a mount point. If this situation
 // if of interest to you, don't use this function...
 func (mounter *Mounter) IsLikelyNotMountPoint(file string) (bool, error) {
-	return IsNotMountPoint(file)
-}
-
-func IsNotMountPoint(file string) (bool, error) {
 	stat, err := os.Stat(file)
 	if err != nil {
 		return true, err
@@ -386,7 +391,7 @@ func (mounter *SafeFormatAndMount) formatAndMount(source string, target string,
 				return mountErr
 			} else {
 				// Block device is formatted with unexpected filesystem, let the user know
-				return fmt.Errorf("failed to mount the volume as %q, it's already formatted with %q. Mount error: %v", fstype, existingFormat, mountErr)
+				return fmt.Errorf("failed to mount the volume as %q, it already contains %s. Mount error: %v", fstype, existingFormat, mountErr)
 			}
 		}
 	}
@@ -395,19 +400,33 @@ func (mounter *SafeFormatAndMount) formatAndMount(source string, target string,
 
 // diskLooksUnformatted uses 'lsblk' to see if the given disk is unformated
 func (mounter *SafeFormatAndMount) getDiskFormat(disk string) (string, error) {
-	args := []string{"-nd", "-o", "FSTYPE", disk}
+	args := []string{"-n", "-o", "FSTYPE", disk}
 	cmd := mounter.Runner.Command("lsblk", args...)
 	glog.V(4).Infof("Attempting to determine if disk %q is formatted using lsblk with args: (%v)", disk, args)
 	dataOut, err := cmd.CombinedOutput()
-	output := strings.TrimSpace(string(dataOut))
-
-	// TODO (#13212): check if this disk has partitions and return false, and
-	// an error if so.
+	output := string(dataOut)
+	glog.V(4).Infof("Output: %q", output)
 
 	if err != nil {
 		glog.Errorf("Could not determine if disk %q is formatted (%v)", disk, err)
 		return "", err
 	}
 
-	return strings.TrimSpace(output), nil
+	// Split lsblk output into lines. Unformatted devices should contain only
+	// "\n". Beware of "\n\n", that's a device with one empty partition.
+	output = strings.TrimSuffix(output, "\n") // Avoid last empty line
+	lines := strings.Split(output, "\n")
+	if lines[0] != "" {
+		// The device is formatted
+		return lines[0], nil
+	}
+
+	if len(lines) == 1 {
+		// The device is unformatted and has no dependent devices
+		return "", nil
+	}
+
+	// The device has dependent devices, most probably partitions (LVM, LUKS
+	// and MD RAID are reported as FSTYPE and caught above).
+	return "unknown data, probably partitions", nil
 }

vendor/k8s.io/kubernetes/pkg/util/mount/mount_unsupported.go

@@ -34,6 +34,14 @@ func (mounter *Mounter) List() ([]MountPoint, error) {
 	return []MountPoint{}, nil
 }
 
+func (mounter *Mounter) IsMountPointMatch(mp MountPoint, dir string) bool {
+	return (mp.Path == dir)
+}
+
+func (mounter *Mounter) IsNotMountPoint(dir string) (bool, error) {
+	return IsNotMountPoint(mounter, dir)
+}
+
 func (mounter *Mounter) IsLikelyNotMountPoint(file string) (bool, error) {
 	return true, nil
 }
@@ -57,7 +65,3 @@ func (mounter *SafeFormatAndMount) formatAndMount(source string, target string,
 func (mounter *SafeFormatAndMount) diskLooksUnformatted(disk string) (bool, error) {
 	return true, nil
 }
-
-func IsNotMountPoint(file string) (bool, error) {
-	return true, nil
-}

vendor/k8s.io/kubernetes/pkg/util/mount/nsenter_mount.go

@@ -19,6 +19,7 @@ limitations under the License.
 package mount
 
 import (
+	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
@@ -162,6 +163,15 @@ func (*NsenterMounter) List() ([]MountPoint, error) {
 	return listProcMounts(hostProcMountsPath)
 }
 
+func (m *NsenterMounter) IsNotMountPoint(dir string) (bool, error) {
+	return IsNotMountPoint(m, dir)
+}
+
+func (*NsenterMounter) IsMountPointMatch(mp 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 *NsenterMounter) IsLikelyNotMountPoint(file string) (bool, error) {

vendor/k8s.io/kubernetes/pkg/util/mount/nsenter_mount_unsupported.go

@@ -38,6 +38,14 @@ func (*NsenterMounter) List() ([]MountPoint, error) {
 	return []MountPoint{}, nil
 }
 
+func (m *NsenterMounter) IsNotMountPoint(dir string) (bool, error) {
+	return IsNotMountPoint(m, dir)
+}
+
+func (*NsenterMounter) IsMountPointMatch(mp MountPoint, dir string) bool {
+	return (mp.Path == dir)
+}
+
 func (*NsenterMounter) IsLikelyNotMountPoint(file string) (bool, error) {
 	return true, nil
 }