package parse import ( "strconv" "strings" "github.com/containers/podman/v3/libpod" "github.com/containers/podman/v3/libpod/define" units "github.com/docker/go-units" "github.com/pkg/errors" "github.com/sirupsen/logrus" ) // Handle volume options from CLI. // Parse "o" option to find UID, GID, Size. func VolumeOptions(opts map[string]string) ([]libpod.VolumeCreateOption, error) { libpodOptions := []libpod.VolumeCreateOption{} volumeOptions := make(map[string]string) for key, value := range opts { switch key { case "o": // o has special handling to parse out UID, GID. // These are separate Libpod options. splitVal := strings.Split(value, ",") finalVal := []string{} for _, o := range splitVal { // Options will be formatted as either "opt" or // "opt=value" splitO := strings.SplitN(o, "=", 2) switch strings.ToLower(splitO[0]) { case "size": size, err := units.FromHumanSize(splitO[1]) if err != nil { return nil, errors.Wrapf(err, "cannot convert size %s to integer", splitO[1]) } libpodOptions = append(libpodOptions, libpod.WithVolumeSize(uint64(size))) finalVal = append(finalVal, o) // set option "SIZE": "$size" volumeOptions["SIZE"] = splitO[1] case "inodes": inodes, err := strconv.ParseUint(splitO[1], 10, 64) if err != nil { return nil, errors.Wrapf(err, "cannot convert inodes %s to integer", splitO[1]) } libpodOptions = append(libpodOptions, libpod.WithVolumeInodes(uint64(inodes))) finalVal = append(finalVal, o) // set option "INODES": "$size" volumeOptions["INODES"] = splitO[1] case "uid": if len(splitO) != 2 { return nil, errors.Wrapf(define.ErrInvalidArg, "uid option must provide a UID") } intUID, err := strconv.Atoi(splitO[1]) if err != nil { return nil, errors.Wrapf(err, "cannot convert UID %s to integer", splitO[1]) } logrus.Debugf("Removing uid= from options and adding WithVolumeUID for UID %d", intUID) libpodOptions = append(libpodOptions, libpod.WithVolumeUID(intUID), libpod.WithVolumeNoChown()) finalVal = append(finalVal, o) // set option "UID": "$uid" volumeOptions["UID"] = splitO[1] case "gid": if len(splitO) != 2 { return nil, errors.Wrapf(define.ErrInvalidArg, "gid option must provide a GID") } intGID, err := strconv.Atoi(splitO[1]) if err != nil { return nil, errors.Wrapf(err, "cannot convert GID %s to integer", splitO[1]) } logrus.Debugf("Removing gid= from options and adding WithVolumeGID for GID %d", intGID) libpodOptions = append(libpodOptions, libpod.WithVolumeGID(intGID), libpod.WithVolumeNoChown()) finalVal = append(finalVal, o) // set option "GID": "$gid" volumeOptions["GID"] = splitO[1] default: finalVal = append(finalVal, o) } } if len(finalVal) > 0 { volumeOptions[key] = strings.Join(finalVal, ",") } default: volumeOptions[key] = value } } if len(volumeOptions) > 0 { libpodOptions = append(libpodOptions, libpod.WithVolumeOptions(volumeOptions)) } return libpodOptions, nil }