// parseVolumesFrom ensure that the supplied volumes-from is valid.
func parseVolumesFrom(spec string) (string, string, error) {
if len(spec) == 0 {
return "", "", fmt.Errorf("malformed volumes-from specification: %s", spec)
}
specParts := strings.SplitN(spec, ":", 2)
id := specParts[0]
mode := "rw"
if len(specParts) == 2 {
mode = specParts[1]
if !volume.ValidMountMode(mode) {
return "", "", fmt.Errorf("invalid mode for volumes-from: %s", mode)
}
}
return id, mode, nil
}
// parseVolumesFrom ensure that the supplied volumes-from is valid.
func parseVolumesFrom(spec string) (string, string, error) {
if len(spec) == 0 {
return "", "", derr.ErrorCodeVolumeFromBlank.WithArgs(spec)
}
specParts := strings.SplitN(spec, ":", 2)
id := specParts[0]
mode := "rw"
if len(specParts) == 2 {
mode = specParts[1]
if !volume.ValidMountMode(mode) {
return "", "", derr.ErrorCodeVolumeMode.WithArgs(mode)
}
}
return id, mode, nil
}
// parseBindMount validates the configuration of mount information in runconfig is valid.
func parseBindMount(spec, volumeDriver string) (*mountPoint, error) {
bind := &mountPoint{
RW: true,
}
arr := strings.Split(spec, ":")
switch len(arr) {
case 2:
bind.Destination = arr[1]
case 3:
bind.Destination = arr[1]
mode := arr[2]
if !volume.ValidMountMode(mode) {
return nil, fmt.Errorf("invalid mode for volumes-from: %s", mode)
}
bind.RW = volume.ReadWrite(mode)
// Mode field is used by SELinux to decide whether to apply label
bind.Mode = mode
default:
return nil, fmt.Errorf("Invalid volume specification: %s", spec)
}
//validate the volumes destination path
if !filepath.IsAbs(bind.Destination) {
return nil, fmt.Errorf("Invalid volume destination path: %s mount path must be absolute.", bind.Destination)
}
name, source, err := parseVolumeSource(arr[0])
if err != nil {
return nil, err
}
if len(source) == 0 {
bind.Driver = volumeDriver
if len(bind.Driver) == 0 {
bind.Driver = volume.DefaultDriverName
}
} else {
bind.Source = filepath.Clean(source)
}
bind.Name = name
bind.Destination = filepath.Clean(bind.Destination)
return bind, nil
}