73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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 nfs
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import (
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"os/exec"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util/mount"
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"github.com/golang/glog"
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)
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type nfsMountInterface interface {
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// Mount takes an NFS host ip or hostname, a source directory (the exported directory), a target directory where the source directory will be mounted, and a boolean readOnly
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Mount(server string, source string, target string, readOnly bool) error
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// Umount wraps syscall.Mount().
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Unmount(target string) error
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List() ([]mount.MountPoint, error)
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IsMountPoint(dir string) (bool, error)
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}
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// newNFSMounter returns an nfsMountInterface for the current system.
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func newNFSMounter() nfsMountInterface {
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return &nfsMounter{}
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}
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type nfsMounter struct{}
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func (mounter *nfsMounter) Mount(server string, exportDir string, mountDir string, readOnly bool) error {
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mountOptions := "rw"
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if readOnly {
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mountOptions = "ro"
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}
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mountArgs := []string{"-t", "nfs", server + ":" + exportDir, mountDir, "-o", mountOptions}
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command := exec.Command("mount", mountArgs...)
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output, errs := command.CombinedOutput()
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if errs != nil {
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glog.Errorf("NFS mounting failed: %v\n\tMount args are: %v\n\texportDir is: %v\n\tmountDir is: %v\n\tserver is: %v\n\tmount output is: %v", errs, mountArgs, exportDir, mountDir, server, string(output))
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return errs
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}
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return nil
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}
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func (mounter *nfsMounter) Unmount(target string) error {
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unmounter := mount.New()
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return unmounter.Unmount(target, 0)
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}
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func (mounter *nfsMounter) List() ([]mount.MountPoint, error) {
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return nil, nil
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}
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func (mounter *nfsMounter) IsMountPoint(dir string) (bool, error) {
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isMounter := mount.New()
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return isMounter.IsMountPoint(dir)
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}
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