github.com/containers/libpod@v1.9.4-0.20220419124438-4284fd425507/pkg/specgen/generate/storage.go

package generate

//nolint

import (
	"fmt"
	"path"
	"path/filepath"
	"strings"

	"github.com/containers/buildah/pkg/parse"
	"github.com/containers/libpod/libpod"
	"github.com/containers/libpod/pkg/specgen"
	"github.com/containers/libpod/pkg/util"
	spec "github.com/opencontainers/runtime-spec/specs-go"
	"github.com/pkg/errors"
	"github.com/sirupsen/logrus"
)

const (
	// TypeBind is the type for mounting host dir
	TypeBind = "bind"
	// TypeVolume is the type for named volumes
	TypeVolume = "volume"
	// TypeTmpfs is the type for mounting tmpfs
	TypeTmpfs = "tmpfs"
)

var (
	errDuplicateDest = errors.Errorf("duplicate mount destination")         //nolint
	optionArgError   = errors.Errorf("must provide an argument for option") //nolint
	noDestError      = errors.Errorf("must set volume destination")         //nolint
)

// Parse all volume-related options in the create config into a set of mounts
// and named volumes to add to the container.
// Handles --volumes-from, --volumes, --tmpfs, --init, and --init-path flags.
// TODO: Named volume options -  should we default to rprivate? It bakes into a
// bind mount under the hood...
// TODO: handle options parsing/processing via containers/storage/pkg/mount
func parseVolumes(s *specgen.SpecGenerator, mounts, volMounts, tmpMounts []string) error { //nolint

	// TODO this needs to come from the image and erquires a runtime

	// Add image volumes.
	//baseMounts, baseVolumes, err := config.getImageVolumes()
	//if err != nil {
	//	return nil, nil, err
	//}

	// Add --volumes-from.
	// Overrides image volumes unconditionally.
	//vFromMounts, vFromVolumes, err := config.getVolumesFrom(runtime)
	//if err != nil {
	//	return nil, nil, err
	//}
	//for dest, mount := range vFromMounts {
	//	baseMounts[dest] = mount
	//}
	//for dest, volume := range vFromVolumes {
	//	baseVolumes[dest] = volume
	//}

	// Next mounts from the --mounts flag.
	// Do not override yet.
	//unifiedMounts, _, err := getMounts(mounts)
	//if err != nil {
	//	return err
	//}
	//
	//// Next --volumes flag.
	//// Do not override yet.
	//volumeMounts, _ , err := getVolumeMounts(volMounts)
	//if err != nil {
	//	return err
	//}
	//
	//// Next --tmpfs flag.
	//// Do not override yet.
	//tmpfsMounts, err := getTmpfsMounts(tmpMounts)
	//if err != nil {
	//	return err
	//}

	//// Unify mounts from --mount, --volume, --tmpfs.
	//// Also add mounts + volumes directly from createconfig.
	//// Start with --volume.
	//for dest, mount := range volumeMounts {
	//	if _, ok := unifiedMounts[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, dest)
	//	}
	//	unifiedMounts[dest] = mount
	//}
	//for dest, volume := range volumeVolumes {
	//	if _, ok := unifiedVolumes[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, dest)
	//	}
	//	unifiedVolumes[dest] = volume
	//}
	//// Now --tmpfs
	//for dest, tmpfs := range tmpfsMounts {
	//	if _, ok := unifiedMounts[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, dest)
	//	}
	//	unifiedMounts[dest] = tmpfs
	//}
	//// Now spec mounts and volumes
	//for _, mount := range config.Mounts {
	//	dest := mount.Destination
	//	if _, ok := unifiedMounts[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, dest)
	//	}
	//	unifiedMounts[dest] = mount
	//}
	//for _, volume := range config.NamedVolumes {
	//	dest := volume.Dest
	//	if _, ok := unifiedVolumes[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, dest)
	//	}
	//	unifiedVolumes[dest] = volume
	//}
	//
	//// If requested, add container init binary
	//if config.Init {
	//	initPath := config.InitPath
	//	if initPath == "" {
	//		rtc, err := runtime.GetConfig()
	//		if err != nil {
	//			return nil, nil, err
	//		}
	//		initPath = rtc.Engine.InitPath
	//	}
	//	initMount, err := config.addContainerInitBinary(initPath)
	//	if err != nil {
	//		return nil, nil, err
	//	}
	//	if _, ok := unifiedMounts[initMount.Destination]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, "conflict with mount added by --init to %q", initMount.Destination)
	//	}
	//	unifiedMounts[initMount.Destination] = initMount
	//}
	//
	//// Before superseding, we need to find volume mounts which conflict with
	//// named volumes, and vice versa.
	//// We'll delete the conflicts here as we supersede.
	//for dest := range unifiedMounts {
	//	if _, ok := baseVolumes[dest]; ok {
	//		delete(baseVolumes, dest)
	//	}
	//}
	//for dest := range unifiedVolumes {
	//	if _, ok := baseMounts[dest]; ok {
	//		delete(baseMounts, dest)
	//	}
	//}
	//
	//// Supersede volumes-from/image volumes with unified volumes from above.
	//// This is an unconditional replacement.
	//for dest, mount := range unifiedMounts {
	//	baseMounts[dest] = mount
	//}
	//for dest, volume := range unifiedVolumes {
	//	baseVolumes[dest] = volume
	//}
	//
	//// If requested, add tmpfs filesystems for read-only containers.
	//if config.Security.ReadOnlyRootfs && config.Security.ReadOnlyTmpfs {
	//	readonlyTmpfs := []string{"/tmp", "/var/tmp", "/run"}
	//	options := []string{"rw", "rprivate", "nosuid", "nodev", "tmpcopyup"}
	//	for _, dest := range readonlyTmpfs {
	//		if _, ok := baseMounts[dest]; ok {
	//			continue
	//		}
	//		if _, ok := baseVolumes[dest]; ok {
	//			continue
	//		}
	//		localOpts := options
	//		if dest == "/run" {
	//			localOpts = append(localOpts, "noexec", "size=65536k")
	//		} else {
	//			localOpts = append(localOpts, "exec")
	//		}
	//		baseMounts[dest] = spec.Mount{
	//			Destination: dest,
	//			Type:        "tmpfs",
	//			Source:      "tmpfs",
	//			Options:     localOpts,
	//		}
	//	}
	//}
	//
	//// Check for conflicts between named volumes and mounts
	//for dest := range baseMounts {
	//	if _, ok := baseVolumes[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, "conflict at mount destination %v", dest)
	//	}
	//}
	//for dest := range baseVolumes {
	//	if _, ok := baseMounts[dest]; ok {
	//		return nil, nil, errors.Wrapf(errDuplicateDest, "conflict at mount destination %v", dest)
	//	}
	//}
	//
	//// Final step: maps to arrays
	//finalMounts := make([]spec.Mount, 0, len(baseMounts))
	//for _, mount := range baseMounts {
	//	if mount.Type == TypeBind {
	//		absSrc, err := filepath.Abs(mount.Source)
	//		if err != nil {
	//			return nil, nil, errors.Wrapf(err, "error getting absolute path of %s", mount.Source)
	//		}
	//		mount.Source = absSrc
	//	}
	//	finalMounts = append(finalMounts, mount)
	//}
	//finalVolumes := make([]*define.ContainerNamedVolume, 0, len(baseVolumes))
	//for _, volume := range baseVolumes {
	//	finalVolumes = append(finalVolumes, volume)
	//}

	//return finalMounts, finalVolumes, nil
	return nil
}

// Parse volumes from - a set of containers whose volumes we will mount in.
// Grab the containers, retrieve any user-created spec mounts and all named
// volumes, and return a list of them.
// Conflicts are resolved simply - the last container specified wins.
// Container names may be suffixed by mount options after a colon.
// TODO: We should clean these paths if possible
// TODO deferred baude
func getVolumesFrom() (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
	// Both of these are maps of mount destination to mount type.
	// We ensure that each destination is only mounted to once in this way.
	//finalMounts := make(map[string]spec.Mount)
	//finalNamedVolumes := make(map[string]*define.ContainerNamedVolume)
	//
	//for _, vol := range config.VolumesFrom {
	//	var (
	//		options  = []string{}
	//		err      error
	//		splitVol = strings.SplitN(vol, ":", 2)
	//	)
	//	if len(splitVol) == 2 {
	//		splitOpts := strings.Split(splitVol[1], ",")
	//		for _, checkOpt := range splitOpts {
	//			switch checkOpt {
	//			case "z", "ro", "rw":
	//				// Do nothing, these are valid options
	//			default:
	//				return nil, nil, errors.Errorf("invalid options %q, can only specify 'ro', 'rw', and 'z'", splitVol[1])
	//			}
	//		}
	//
	//		if options, err = parse.ValidateVolumeOpts(splitOpts); err != nil {
	//			return nil, nil, err
	//		}
	//	}
	//	ctr, err := runtime.LookupContainer(splitVol[0])
	//	if err != nil {
	//		return nil, nil, errors.Wrapf(err, "error looking up container %q for volumes-from", splitVol[0])
	//	}
	//
	//	logrus.Debugf("Adding volumes from container %s", ctr.ID())
	//
	//	// Look up the container's user volumes. This gets us the
	//	// destinations of all mounts the user added to the container.
	//	userVolumesArr := ctr.UserVolumes()
	//
	//	// We're going to need to access them a lot, so convert to a map
	//	// to reduce looping.
	//	// We'll also use the map to indicate if we missed any volumes along the way.
	//	userVolumes := make(map[string]bool)
	//	for _, dest := range userVolumesArr {
	//		userVolumes[dest] = false
	//	}
	//
	//	// Now we get the container's spec and loop through its volumes
	//	// and append them in if we can find them.
	//	spec := ctr.Spec()
	//	if spec == nil {
	//		return nil, nil, errors.Errorf("error retrieving container %s spec for volumes-from", ctr.ID())
	//	}
	//	for _, mnt := range spec.Mounts {
	//		if mnt.Type != TypeBind {
	//			continue
	//		}
	//		if _, exists := userVolumes[mnt.Destination]; exists {
	//			userVolumes[mnt.Destination] = true
	//
	//			if len(options) != 0 {
	//				mnt.Options = options
	//			}
	//
	//			if _, ok := finalMounts[mnt.Destination]; ok {
	//				logrus.Debugf("Overriding mount to %s with new mount from container %s", mnt.Destination, ctr.ID())
	//			}
	//			finalMounts[mnt.Destination] = mnt
	//		}
	//	}
	//
	//	// We're done with the spec mounts. Add named volumes.
	//	// Add these unconditionally - none of them are automatically
	//	// part of the container, as some spec mounts are.
	//	namedVolumes := ctr.NamedVolumes()
	//	for _, namedVol := range namedVolumes {
	//		if _, exists := userVolumes[namedVol.Dest]; exists {
	//			userVolumes[namedVol.Dest] = true
	//		}
	//
	//		if len(options) != 0 {
	//			namedVol.Options = options
	//		}
	//
	//		if _, ok := finalMounts[namedVol.Dest]; ok {
	//			logrus.Debugf("Overriding named volume mount to %s with new named volume from container %s", namedVol.Dest, ctr.ID())
	//		}
	//		finalNamedVolumes[namedVol.Dest] = namedVol
	//	}
	//
	//	// Check if we missed any volumes
	//	for volDest, found := range userVolumes {
	//		if !found {
	//			logrus.Warnf("Unable to match volume %s from container %s for volumes-from", volDest, ctr.ID())
	//		}
	//	}
	//}
	//
	//return finalMounts, finalNamedVolumes, nil
	return nil, nil, nil
}

// getMounts takes user-provided input from the --mount flag and creates OCI
// spec mounts and Libpod named volumes.
// podman run --mount type=bind,src=/etc/resolv.conf,target=/etc/resolv.conf ...
// podman run --mount type=tmpfs,target=/dev/shm ...
// podman run --mount type=volume,source=test-volume, ...
func getMounts(mounts []string) (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
	finalMounts := make(map[string]spec.Mount)
	finalNamedVolumes := make(map[string]*libpod.ContainerNamedVolume)

	errInvalidSyntax := errors.Errorf("incorrect mount format: should be --mount type=<bind|tmpfs|volume>,[src=<host-dir|volume-name>,]target=<ctr-dir>[,options]")

	// TODO(vrothberg): the manual parsing can be replaced with a regular expression
	//                  to allow a more robust parsing of the mount format and to give
	//                  precise errors regarding supported format versus supported options.
	for _, mount := range mounts {
		arr := strings.SplitN(mount, ",", 2)
		if len(arr) < 2 {
			return nil, nil, errors.Wrapf(errInvalidSyntax, "%q", mount)
		}
		kv := strings.Split(arr[0], "=")
		// TODO: type is not explicitly required in Docker.
		// If not specified, it defaults to "volume".
		if len(kv) != 2 || kv[0] != "type" {
			return nil, nil, errors.Wrapf(errInvalidSyntax, "%q", mount)
		}

		tokens := strings.Split(arr[1], ",")
		switch kv[1] {
		case TypeBind:
			mount, err := getBindMount(tokens)
			if err != nil {
				return nil, nil, err
			}
			if _, ok := finalMounts[mount.Destination]; ok {
				return nil, nil, errors.Wrapf(errDuplicateDest, mount.Destination)
			}
			finalMounts[mount.Destination] = mount
		case TypeTmpfs:
			mount, err := getTmpfsMount(tokens)
			if err != nil {
				return nil, nil, err
			}
			if _, ok := finalMounts[mount.Destination]; ok {
				return nil, nil, errors.Wrapf(errDuplicateDest, mount.Destination)
			}
			finalMounts[mount.Destination] = mount
		case "volume":
			volume, err := getNamedVolume(tokens)
			if err != nil {
				return nil, nil, err
			}
			if _, ok := finalNamedVolumes[volume.Dest]; ok {
				return nil, nil, errors.Wrapf(errDuplicateDest, volume.Dest)
			}
			finalNamedVolumes[volume.Dest] = volume
		default:
			return nil, nil, errors.Errorf("invalid filesystem type %q", kv[1])
		}
	}

	return finalMounts, finalNamedVolumes, nil
}

// Parse a single bind mount entry from the --mount flag.
func getBindMount(args []string) (spec.Mount, error) { //nolint
	newMount := spec.Mount{
		Type: TypeBind,
	}

	var setSource, setDest, setRORW, setSuid, setDev, setExec, setRelabel bool

	for _, val := range args {
		kv := strings.Split(val, "=")
		switch kv[0] {
		case "bind-nonrecursive":
			newMount.Options = append(newMount.Options, "bind")
		case "ro", "rw":
			if setRORW {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'ro' or 'rw' options more than once")
			}
			setRORW = true
			// Can be formatted as one of:
			// ro
			// ro=[true|false]
			// rw
			// rw=[true|false]
			switch len(kv) {
			case 1:
				newMount.Options = append(newMount.Options, kv[0])
			case 2:
				switch strings.ToLower(kv[1]) {
				case "true":
					newMount.Options = append(newMount.Options, kv[0])
				case "false":
					// Set the opposite only for rw
					// ro's opposite is the default
					if kv[0] == "rw" {
						newMount.Options = append(newMount.Options, "ro")
					}
				default:
					return newMount, errors.Wrapf(optionArgError, "%s must be set to true or false, instead received %q", kv[0], kv[1])
				}
			default:
				return newMount, errors.Wrapf(optionArgError, "badly formatted option %q", val)
			}
		case "nosuid", "suid":
			if setSuid {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'nosuid' and 'suid' options more than once")
			}
			setSuid = true
			newMount.Options = append(newMount.Options, kv[0])
		case "nodev", "dev":
			if setDev {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'nodev' and 'dev' options more than once")
			}
			setDev = true
			newMount.Options = append(newMount.Options, kv[0])
		case "noexec", "exec":
			if setExec {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'noexec' and 'exec' options more than once")
			}
			setExec = true
			newMount.Options = append(newMount.Options, kv[0])
		case "shared", "rshared", "private", "rprivate", "slave", "rslave", "Z", "z":
			newMount.Options = append(newMount.Options, kv[0])
		case "bind-propagation":
			if len(kv) == 1 {
				return newMount, errors.Wrapf(optionArgError, kv[0])
			}
			newMount.Options = append(newMount.Options, kv[1])
		case "src", "source":
			if len(kv) == 1 {
				return newMount, errors.Wrapf(optionArgError, kv[0])
			}
			if err := parse.ValidateVolumeHostDir(kv[1]); err != nil {
				return newMount, err
			}
			newMount.Source = kv[1]
			setSource = true
		case "target", "dst", "destination":
			if len(kv) == 1 {
				return newMount, errors.Wrapf(optionArgError, kv[0])
			}
			if err := parse.ValidateVolumeCtrDir(kv[1]); err != nil {
				return newMount, err
			}
			newMount.Destination = filepath.Clean(kv[1])
			setDest = true
		case "relabel":
			if setRelabel {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'relabel' option more than once")
			}
			setRelabel = true
			if len(kv) != 2 {
				return newMount, errors.Wrapf(util.ErrBadMntOption, "%s mount option must be 'private' or 'shared'", kv[0])
			}
			switch kv[1] {
			case "private":
				newMount.Options = append(newMount.Options, "z")
			case "shared":
				newMount.Options = append(newMount.Options, "Z")
			default:
				return newMount, errors.Wrapf(util.ErrBadMntOption, "%s mount option must be 'private' or 'shared'", kv[0])
			}
		default:
			return newMount, errors.Wrapf(util.ErrBadMntOption, kv[0])
		}
	}

	if !setDest {
		return newMount, noDestError
	}

	if !setSource {
		newMount.Source = newMount.Destination
	}

	options, err := parse.ValidateVolumeOpts(newMount.Options)
	if err != nil {
		return newMount, err
	}
	newMount.Options = options
	return newMount, nil
}

// Parse a single tmpfs mount entry from the --mount flag
func getTmpfsMount(args []string) (spec.Mount, error) { //nolint
	newMount := spec.Mount{
		Type:   TypeTmpfs,
		Source: TypeTmpfs,
	}

	var setDest, setRORW, setSuid, setDev, setExec, setTmpcopyup bool

	for _, val := range args {
		kv := strings.Split(val, "=")
		switch kv[0] {
		case "tmpcopyup", "notmpcopyup":
			if setTmpcopyup {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'tmpcopyup' and 'notmpcopyup' options more than once")
			}
			setTmpcopyup = true
			newMount.Options = append(newMount.Options, kv[0])
		case "ro", "rw":
			if setRORW {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'ro' and 'rw' options more than once")
			}
			setRORW = true
			newMount.Options = append(newMount.Options, kv[0])
		case "nosuid", "suid":
			if setSuid {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'nosuid' and 'suid' options more than once")
			}
			setSuid = true
			newMount.Options = append(newMount.Options, kv[0])
		case "nodev", "dev":
			if setDev {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'nodev' and 'dev' options more than once")
			}
			setDev = true
			newMount.Options = append(newMount.Options, kv[0])
		case "noexec", "exec":
			if setExec {
				return newMount, errors.Wrapf(optionArgError, "cannot pass 'noexec' and 'exec' options more than once")
			}
			setExec = true
			newMount.Options = append(newMount.Options, kv[0])
		case "tmpfs-mode":
			if len(kv) == 1 {
				return newMount, errors.Wrapf(optionArgError, kv[0])
			}
			newMount.Options = append(newMount.Options, fmt.Sprintf("mode=%s", kv[1]))
		case "tmpfs-size":
			if len(kv) == 1 {
				return newMount, errors.Wrapf(optionArgError, kv[0])
			}
			newMount.Options = append(newMount.Options, fmt.Sprintf("size=%s", kv[1]))
		case "src", "source":
			return newMount, errors.Errorf("source is not supported with tmpfs mounts")
		case "target", "dst", "destination":
			if len(kv) == 1 {
				return newMount, errors.Wrapf(optionArgError, kv[0])
			}
			if err := parse.ValidateVolumeCtrDir(kv[1]); err != nil {
				return newMount, err
			}
			newMount.Destination = filepath.Clean(kv[1])
			setDest = true
		default:
			return newMount, errors.Wrapf(util.ErrBadMntOption, kv[0])
		}
	}

	if !setDest {
		return newMount, noDestError
	}

	return newMount, nil
}

// Parse a single volume mount entry from the --mount flag.
// Note that the volume-label option for named volumes is currently NOT supported.
// TODO: add support for --volume-label
func getNamedVolume(args []string) (*libpod.ContainerNamedVolume, error) { //nolint
	newVolume := new(libpod.ContainerNamedVolume)

	var setSource, setDest, setRORW, setSuid, setDev, setExec bool

	for _, val := range args {
		kv := strings.Split(val, "=")
		switch kv[0] {
		case "ro", "rw":
			if setRORW {
				return nil, errors.Wrapf(optionArgError, "cannot pass 'ro' and 'rw' options more than once")
			}
			setRORW = true
			newVolume.Options = append(newVolume.Options, kv[0])
		case "nosuid", "suid":
			if setSuid {
				return nil, errors.Wrapf(optionArgError, "cannot pass 'nosuid' and 'suid' options more than once")
			}
			setSuid = true
			newVolume.Options = append(newVolume.Options, kv[0])
		case "nodev", "dev":
			if setDev {
				return nil, errors.Wrapf(optionArgError, "cannot pass 'nodev' and 'dev' options more than once")
			}
			setDev = true
			newVolume.Options = append(newVolume.Options, kv[0])
		case "noexec", "exec":
			if setExec {
				return nil, errors.Wrapf(optionArgError, "cannot pass 'noexec' and 'exec' options more than once")
			}
			setExec = true
			newVolume.Options = append(newVolume.Options, kv[0])
		case "volume-label":
			return nil, errors.Errorf("the --volume-label option is not presently implemented")
		case "src", "source":
			if len(kv) == 1 {
				return nil, errors.Wrapf(optionArgError, kv[0])
			}
			newVolume.Name = kv[1]
			setSource = true
		case "target", "dst", "destination":
			if len(kv) == 1 {
				return nil, errors.Wrapf(optionArgError, kv[0])
			}
			if err := parse.ValidateVolumeCtrDir(kv[1]); err != nil {
				return nil, err
			}
			newVolume.Dest = filepath.Clean(kv[1])
			setDest = true
		default:
			return nil, errors.Wrapf(util.ErrBadMntOption, kv[0])
		}
	}

	if !setSource {
		return nil, errors.Errorf("must set source volume")
	}
	if !setDest {
		return nil, noDestError
	}

	return newVolume, nil
}

func getVolumeMounts(vols []string) (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
	mounts := make(map[string]spec.Mount)
	volumes := make(map[string]*libpod.ContainerNamedVolume)

	volumeFormatErr := errors.Errorf("incorrect volume format, should be [host-dir:]ctr-dir[:option]")

	for _, vol := range vols {
		var (
			options []string
			src     string
			dest    string
			err     error
		)

		splitVol := strings.Split(vol, ":")
		if len(splitVol) > 3 {
			return nil, nil, errors.Wrapf(volumeFormatErr, vol)
		}

		src = splitVol[0]
		if len(splitVol) == 1 {
			// This is an anonymous named volume. Only thing given
			// is destination.
			// Name/source will be blank, and populated by libpod.
			src = ""
			dest = splitVol[0]
		} else if len(splitVol) > 1 {
			dest = splitVol[1]
		}
		if len(splitVol) > 2 {
			if options, err = parse.ValidateVolumeOpts(strings.Split(splitVol[2], ",")); err != nil {
				return nil, nil, err
			}
		}

		// Do not check source dir for anonymous volumes
		if len(splitVol) > 1 {
			if err := parse.ValidateVolumeHostDir(src); err != nil {
				return nil, nil, err
			}
		}
		if err := parse.ValidateVolumeCtrDir(dest); err != nil {
			return nil, nil, err
		}

		cleanDest := filepath.Clean(dest)

		if strings.HasPrefix(src, "/") || strings.HasPrefix(src, ".") {
			// This is not a named volume
			newMount := spec.Mount{
				Destination: cleanDest,
				Type:        string(TypeBind),
				Source:      src,
				Options:     options,
			}
			if _, ok := mounts[newMount.Destination]; ok {
				return nil, nil, errors.Wrapf(errDuplicateDest, newMount.Destination)
			}
			mounts[newMount.Destination] = newMount
		} else {
			// This is a named volume
			newNamedVol := new(libpod.ContainerNamedVolume)
			newNamedVol.Name = src
			newNamedVol.Dest = cleanDest
			newNamedVol.Options = options

			if _, ok := volumes[newNamedVol.Dest]; ok {
				return nil, nil, errors.Wrapf(errDuplicateDest, newNamedVol.Dest)
			}
			volumes[newNamedVol.Dest] = newNamedVol
		}

		logrus.Debugf("User mount %s:%s options %v", src, dest, options)
	}

	return mounts, volumes, nil
}

// Get mounts for container's image volumes
// TODO deferred baude
func getImageVolumes() (map[string]spec.Mount, map[string]*libpod.ContainerNamedVolume, error) { //nolint
	//mounts := make(map[string]spec.Mount)
	//volumes := make(map[string]*define.ContainerNamedVolume)
	//
	//if config.ImageVolumeType == "ignore" {
	//	return mounts, volumes, nil
	//}
	//
	//for vol := range config.BuiltinImgVolumes {
	//	cleanDest := filepath.Clean(vol)
	//	logrus.Debugf("Adding image volume at %s", cleanDest)
	//	if config.ImageVolumeType == "tmpfs" {
	//		// Tmpfs image volumes are handled as mounts
	//		mount := spec.Mount{
	//			Destination: cleanDest,
	//			Source:      TypeTmpfs,
	//			Type:        TypeTmpfs,
	//			Options:     []string{"rprivate", "rw", "nodev", "exec"},
	//		}
	//		mounts[cleanDest] = mount
	//	} else {
	//		// Anonymous volumes have no name.
	//		namedVolume := new(define.ContainerNamedVolume)
	//		namedVolume.Options = []string{"rprivate", "rw", "nodev", "exec"}
	//		namedVolume.Dest = cleanDest
	//		volumes[cleanDest] = namedVolume
	//	}
	//}
	//
	//return mounts, volumes, nil
	return nil, nil, nil
}

// GetTmpfsMounts creates spec.Mount structs for user-requested tmpfs mounts
func getTmpfsMounts(mounts []string) (map[string]spec.Mount, error) { //nolint
	m := make(map[string]spec.Mount)
	for _, i := range mounts {
		// Default options if nothing passed
		var options []string
		spliti := strings.Split(i, ":")
		destPath := spliti[0]
		if err := parse.ValidateVolumeCtrDir(spliti[0]); err != nil {
			return nil, err
		}
		if len(spliti) > 1 {
			options = strings.Split(spliti[1], ",")
		}

		if _, ok := m[destPath]; ok {
			return nil, errors.Wrapf(errDuplicateDest, destPath)
		}

		mount := spec.Mount{
			Destination: filepath.Clean(destPath),
			Type:        string(TypeTmpfs),
			Options:     options,
			Source:      string(TypeTmpfs),
		}
		m[destPath] = mount
	}
	return m, nil
}

// AddContainerInitBinary adds the init binary specified by path iff the
// container will run in a private PID namespace that is not shared with the
// host or another pre-existing container, where an init-like process is
// already running.
//
// Note that AddContainerInitBinary prepends "/dev/init" "--" to the command
// to execute the bind-mounted binary as PID 1.
// TODO this needs to be worked on to work in new env
func addContainerInitBinary(path string) (spec.Mount, error) { //nolint
	mount := spec.Mount{
		Destination: "/dev/init",
		Type:        TypeBind,
		Source:      path,
		Options:     []string{TypeBind, "ro"},
	}

	//if path == "" {
	//	return mount, fmt.Errorf("please specify a path to the container-init binary")
	//}
	//if !config.Pid.PidMode.IsPrivate() {
	//	return mount, fmt.Errorf("cannot add init binary as PID 1 (PID namespace isn't private)")
	//}
	//if config.Systemd {
	//	return mount, fmt.Errorf("cannot use container-init binary with systemd")
	//}
	//if _, err := os.Stat(path); os.IsNotExist(err) {
	//	return mount, errors.Wrap(err, "container-init binary not found on the host")
	//}
	//config.Command = append([]string{"/dev/init", "--"}, config.Command...)
	return mount, nil
}

// Supersede existing mounts in the spec with new, user-specified mounts.
// TODO: Should we unmount subtree mounts? E.g., if /tmp/ is mounted by
// one mount, and we already have /tmp/a and /tmp/b, should we remove
// the /tmp/a and /tmp/b mounts in favor of the more general /tmp?
func SupercedeUserMounts(mounts []spec.Mount, configMount []spec.Mount) []spec.Mount {
	if len(mounts) > 0 {
		// If we have overlappings mounts, remove them from the spec in favor of
		// the user-added volume mounts
		destinations := make(map[string]bool)
		for _, mount := range mounts {
			destinations[path.Clean(mount.Destination)] = true
		}
		// Copy all mounts from spec to defaultMounts, except for
		//  - mounts overridden by a user supplied mount;
		//  - all mounts under /dev if a user supplied /dev is present;
		mountDev := destinations["/dev"]
		for _, mount := range configMount {
			if _, ok := destinations[path.Clean(mount.Destination)]; !ok {
				if mountDev && strings.HasPrefix(mount.Destination, "/dev/") {
					// filter out everything under /dev if /dev is user-mounted
					continue
				}

				logrus.Debugf("Adding mount %s", mount.Destination)
				mounts = append(mounts, mount)
			}
		}
		return mounts
	}
	return configMount
}

func InitFSMounts(mounts []spec.Mount) error {
	for i, m := range mounts {
		switch {
		case m.Type == TypeBind:
			opts, err := util.ProcessOptions(m.Options, false, m.Source)
			if err != nil {
				return err
			}
			mounts[i].Options = opts
		case m.Type == TypeTmpfs && filepath.Clean(m.Destination) != "/dev":
			opts, err := util.ProcessOptions(m.Options, true, "")
			if err != nil {
				return err
			}
			mounts[i].Options = opts
		}
	}
	return nil
}