moby/volume/mounts/parser.go
Brian Goff 6a70fd222b Move mount parsing to separate package.
This moves the platform specific stuff in a separate package and keeps
the `volume` package and the defined interfaces light to import.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2018-04-19 06:35:54 -04:00

47 lines
1.5 KiB
Go

package mounts // import "github.com/docker/docker/volume/mounts"
import (
"errors"
"runtime"
"github.com/docker/docker/api/types/mount"
)
const (
// OSLinux is the same as runtime.GOOS on linux
OSLinux = "linux"
// OSWindows is the same as runtime.GOOS on windows
OSWindows = "windows"
)
// ErrVolumeTargetIsRoot is returned when the target destination is root.
// It's used by both LCOW and Linux parsers.
var ErrVolumeTargetIsRoot = errors.New("invalid specification: destination can't be '/'")
// Parser represents a platform specific parser for mount expressions
type Parser interface {
ParseMountRaw(raw, volumeDriver string) (*MountPoint, error)
ParseMountSpec(cfg mount.Mount) (*MountPoint, error)
ParseVolumesFrom(spec string) (string, string, error)
DefaultPropagationMode() mount.Propagation
ConvertTmpfsOptions(opt *mount.TmpfsOptions, readOnly bool) (string, error)
DefaultCopyMode() bool
ValidateVolumeName(name string) error
ReadWrite(mode string) bool
IsBackwardCompatible(m *MountPoint) bool
HasResource(m *MountPoint, absPath string) bool
ValidateTmpfsMountDestination(dest string) error
ValidateMountConfig(mt *mount.Mount) error
}
// NewParser creates a parser for a given container OS, depending on the current host OS (linux on a windows host will resolve to an lcowParser)
func NewParser(containerOS string) Parser {
switch containerOS {
case OSWindows:
return &windowsParser{}
}
if runtime.GOOS == OSWindows {
return &lcowParser{}
}
return &linuxParser{}
}