69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
// +build linux freebsd solaris
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// Package local provides the default implementation for volumes. It
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// is used to mount data volume containers and directories local to
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// the host server.
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package local
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import (
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"fmt"
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"path/filepath"
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"strings"
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"github.com/docker/docker/pkg/mount"
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)
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var (
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oldVfsDir = filepath.Join("vfs", "dir")
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validOpts = map[string]bool{
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"type": true, // specify the filesystem type for mount, e.g. nfs
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"o": true, // generic mount options
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"device": true, // device to mount from
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}
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)
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type optsConfig struct {
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MountType string
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MountOpts string
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MountDevice string
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}
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// scopedPath verifies that the path where the volume is located
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// is under Docker's root and the valid local paths.
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func (r *Root) scopedPath(realPath string) bool {
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// Volumes path for Docker version >= 1.7
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if strings.HasPrefix(realPath, filepath.Join(r.scope, volumesPathName)) && realPath != filepath.Join(r.scope, volumesPathName) {
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return true
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}
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// Volumes path for Docker version < 1.7
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if strings.HasPrefix(realPath, filepath.Join(r.scope, oldVfsDir)) {
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return true
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}
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return false
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}
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func setOpts(v *localVolume, opts map[string]string) error {
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if len(opts) == 0 {
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return nil
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}
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if err := validateOpts(opts); err != nil {
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return err
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}
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v.opts = &optsConfig{
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MountType: opts["type"],
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MountOpts: opts["o"],
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MountDevice: opts["device"],
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}
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return nil
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}
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func (v *localVolume) mount() error {
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if v.opts.MountDevice == "" {
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return fmt.Errorf("missing device in volume options")
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}
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return mount.Mount(v.opts.MountDevice, v.path, v.opts.MountType, v.opts.MountOpts)
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}
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