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935c23f2ad
This patch moves the HostUtil functionality from the util/mount package to the volume/util/hostutil package. All `*NewHostUtil*` calls are changed to return concrete types instead of interfaces. All callers are changed to use the `*NewHostUtil*` methods instead of directly instantiating the concrete types.
119 lines
3.5 KiB
Go
119 lines
3.5 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package hostutil
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import (
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"errors"
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"os"
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"sync"
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"k8s.io/kubernetes/pkg/util/mount"
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)
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// FakeHostUtil is a fake HostUtils implementation for testing
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type FakeHostUtil struct {
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MountPoints []mount.MountPoint
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Filesystem map[string]FileType
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mutex sync.Mutex
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}
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// NewFakeHostUtil returns a struct that implements the HostUtils interface
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// for testing
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// TODO: no callers were initializing the struct with any MountPoints. Check
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// if those are still being used by any callers and if MountPoints still need
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// to be a part of the struct.
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func NewFakeHostUtil(fs map[string]FileType) *FakeHostUtil {
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return &FakeHostUtil{
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Filesystem: fs,
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}
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}
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// Compile-time check to make sure FakeHostUtil implements interface
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var _ HostUtils = &FakeHostUtil{}
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// DeviceOpened checks if block device referenced by pathname is in use by
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// checking if is listed as a device in the in-memory mountpoint table.
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func (hu *FakeHostUtil) DeviceOpened(pathname string) (bool, error) {
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hu.mutex.Lock()
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defer hu.mutex.Unlock()
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for _, mp := range hu.MountPoints {
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if mp.Device == pathname {
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return true, nil
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}
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}
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return false, nil
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}
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// PathIsDevice always returns true
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func (hu *FakeHostUtil) PathIsDevice(pathname string) (bool, error) {
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return true, nil
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}
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// GetDeviceNameFromMount given a mount point, find the volume id
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func (hu *FakeHostUtil) GetDeviceNameFromMount(mounter mount.Interface, mountPath, pluginMountDir string) (string, error) {
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return getDeviceNameFromMount(mounter, mountPath, pluginMountDir)
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}
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// MakeRShared checks if path is shared and bind-mounts it as rshared if needed.
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// No-op for testing
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func (hu *FakeHostUtil) MakeRShared(path string) error {
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return nil
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}
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// GetFileType checks for file/directory/socket/block/character devices.
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// Defaults to Directory if otherwise unspecified.
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func (hu *FakeHostUtil) GetFileType(pathname string) (FileType, error) {
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if t, ok := hu.Filesystem[pathname]; ok {
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return t, nil
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}
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return FileType("Directory"), nil
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}
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// PathExists checks if pathname exists.
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func (hu *FakeHostUtil) PathExists(pathname string) (bool, error) {
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if _, ok := hu.Filesystem[pathname]; ok {
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return true, nil
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}
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return false, nil
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}
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// EvalHostSymlinks returns the path name after evaluating symlinks.
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// No-op for testing
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func (hu *FakeHostUtil) EvalHostSymlinks(pathname string) (string, error) {
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return pathname, nil
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}
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// GetOwner returns the integer ID for the user and group of the given path
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// Not implemented for testing
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func (hu *FakeHostUtil) GetOwner(pathname string) (int64, int64, error) {
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return -1, -1, errors.New("GetOwner not implemented")
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}
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// GetSELinuxSupport tests if pathname is on a mount that supports SELinux.
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// Not implemented for testing
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func (hu *FakeHostUtil) GetSELinuxSupport(pathname string) (bool, error) {
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return false, errors.New("GetSELinuxSupport not implemented")
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}
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// GetMode returns permissions of pathname.
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// Not implemented for testing
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func (hu *FakeHostUtil) GetMode(pathname string) (os.FileMode, error) {
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return 0, errors.New("not implemented")
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}
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