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-rw-r--r--docs/podman-volume-rm.1.md3
-rw-r--r--libpod/boltdb_state.go79
-rw-r--r--libpod/boltdb_state_internal.go53
-rw-r--r--libpod/container.go33
-rw-r--r--libpod/container_internal.go16
-rw-r--r--libpod/container_internal_linux.go18
-rw-r--r--libpod/in_memory_state.go32
-rw-r--r--libpod/options.go92
-rw-r--r--libpod/runtime_ctr.go67
-rw-r--r--libpod/runtime_volume_linux.go24
-rw-r--r--libpod/state.go4
-rw-r--r--pkg/spec/createconfig.go127
-rw-r--r--pkg/spec/spec.go40
-rw-r--r--test/e2e/commit_test.go2
-rw-r--r--test/e2e/run_test.go1
-rw-r--r--test/e2e/volume_rm_test.go4
16 files changed, 322 insertions, 273 deletions
diff --git a/docs/podman-volume-rm.1.md b/docs/podman-volume-rm.1.md
index c23d7675c..8c3765235 100644
--- a/docs/podman-volume-rm.1.md
+++ b/docs/podman-volume-rm.1.md
@@ -21,7 +21,8 @@ Remove all volumes.
**-f**, **--force**=""
-Remove a volume by force, even if it is being used by a container
+Remove a volume by force.
+If it is being used by containers, the containers will be removed first.
**--help**
diff --git a/libpod/boltdb_state.go b/libpod/boltdb_state.go
index 92a7b1538..d8cfa2bda 100644
--- a/libpod/boltdb_state.go
+++ b/libpod/boltdb_state.go
@@ -1358,56 +1358,6 @@ func (s *BoltState) AddVolume(volume *Volume) error {
return err
}
-// RemoveVolCtrDep updates the container dependencies sub bucket of the given volume.
-// It deletes it from the bucket when found.
-// This is important when force removing a volume and we want to get rid of the dependencies.
-func (s *BoltState) RemoveVolCtrDep(volume *Volume, ctrID string) error {
- if ctrID == "" {
- return nil
- }
-
- if !s.valid {
- return ErrDBBadConfig
- }
-
- if !volume.valid {
- return ErrVolumeRemoved
- }
-
- volName := []byte(volume.Name())
-
- db, err := s.getDBCon()
- if err != nil {
- return err
- }
- defer s.closeDBCon(db)
-
- err = db.Update(func(tx *bolt.Tx) error {
- volBkt, err := getVolBucket(tx)
- if err != nil {
- return err
- }
-
- volDB := volBkt.Bucket(volName)
- if volDB == nil {
- volume.valid = false
- return errors.Wrapf(ErrNoSuchVolume, "no volume with name %s found in database", volume.Name())
- }
-
- // Make a subbucket for the containers using the volume
- ctrDepsBkt := volDB.Bucket(volDependenciesBkt)
- depCtrID := []byte(ctrID)
- if depExists := ctrDepsBkt.Get(depCtrID); depExists != nil {
- if err := ctrDepsBkt.Delete(depCtrID); err != nil {
- return errors.Wrapf(err, "error deleting container dependencies %q for volume %s in ctrDependencies bucket in DB", ctrID, volume.Name())
- }
- }
-
- return nil
- })
- return err
-}
-
// RemoveVolume removes the given volume from the state
func (s *BoltState) RemoveVolume(volume *Volume) error {
if !s.valid {
@@ -1433,6 +1383,11 @@ func (s *BoltState) RemoveVolume(volume *Volume) error {
return err
}
+ ctrBkt, err := getCtrBucket(tx)
+ if err != nil {
+ return err
+ }
+
// Check if the volume exists
volDB := volBkt.Bucket(volName)
if volDB == nil {
@@ -1448,6 +1403,18 @@ func (s *BoltState) RemoveVolume(volume *Volume) error {
if volCtrsBkt != nil {
var deps []string
err = volCtrsBkt.ForEach(func(id, value []byte) error {
+ // Alright, this is ugly.
+ // But we need it to work around the change in
+ // volume dependency handling, to make sure that
+ // older Podman versions don't cause DB
+ // corruption.
+ // Look up all dependencies and see that they
+ // still exist before appending.
+ ctrExists := ctrBkt.Bucket(id)
+ if ctrExists == nil {
+ return nil
+ }
+
deps = append(deps, string(id))
return nil
})
@@ -1629,6 +1596,11 @@ func (s *BoltState) VolumeInUse(volume *Volume) ([]string, error) {
return err
}
+ ctrBucket, err := getCtrBucket(tx)
+ if err != nil {
+ return err
+ }
+
volDB := volBucket.Bucket([]byte(volume.Name()))
if volDB == nil {
volume.valid = false
@@ -1642,6 +1614,13 @@ func (s *BoltState) VolumeInUse(volume *Volume) ([]string, error) {
// Iterate through and add dependencies
err = dependsBkt.ForEach(func(id, value []byte) error {
+ // Look up all dependencies and see that they
+ // still exist before appending.
+ ctrExists := ctrBucket.Bucket(id)
+ if ctrExists == nil {
+ return nil
+ }
+
depCtrs = append(depCtrs, string(id))
return nil
diff --git a/libpod/boltdb_state_internal.go b/libpod/boltdb_state_internal.go
index b6a0759b1..a6900a6d3 100644
--- a/libpod/boltdb_state_internal.go
+++ b/libpod/boltdb_state_internal.go
@@ -564,23 +564,17 @@ func (s *BoltState) addContainer(ctr *Container, pod *Pod) error {
}
}
- // Add container to volume dependencies bucket if container is using a named volume
- if ctr.runtime.config.VolumePath == "" {
- return nil
- }
- for _, vol := range ctr.config.Spec.Mounts {
- if strings.Contains(vol.Source, ctr.runtime.config.VolumePath) {
- volName := strings.Split(vol.Source[len(ctr.runtime.config.VolumePath)+1:], "/")[0]
- volDB := volBkt.Bucket([]byte(volName))
- if volDB == nil {
- return errors.Wrapf(ErrNoSuchVolume, "no volume with name %s found in database", volName)
- }
+ // Add container to named volume dependencies buckets
+ for _, vol := range ctr.config.NamedVolumes {
+ volDB := volBkt.Bucket([]byte(vol.Name))
+ if volDB == nil {
+ return errors.Wrapf(ErrNoSuchVolume, "no volume with name %s found in database when adding container %s", vol.Name, ctr.ID())
+ }
- ctrDepsBkt := volDB.Bucket(volDependenciesBkt)
- if depExists := ctrDepsBkt.Get(ctrID); depExists == nil {
- if err := ctrDepsBkt.Put(ctrID, ctrID); err != nil {
- return errors.Wrapf(err, "error storing container dependencies %q for volume %s in ctrDependencies bucket in DB", ctr.ID(), volName)
- }
+ ctrDepsBkt := volDB.Bucket(volDependenciesBkt)
+ if depExists := ctrDepsBkt.Get(ctrID); depExists == nil {
+ if err := ctrDepsBkt.Put(ctrID, ctrID); err != nil {
+ return errors.Wrapf(err, "error adding container %s to volume %s dependencies", ctr.ID(), vol.Name)
}
}
}
@@ -745,22 +739,19 @@ func (s *BoltState) removeContainer(ctr *Container, pod *Pod, tx *bolt.Tx) error
}
}
- // Remove container from volume dependencies bucket if container is using a named volume
- for _, vol := range ctr.config.Spec.Mounts {
- if strings.Contains(vol.Source, ctr.runtime.config.VolumePath) {
- volName := strings.Split(vol.Source[len(ctr.runtime.config.VolumePath)+1:], "/")[0]
-
- volDB := volBkt.Bucket([]byte(volName))
- if volDB == nil {
- // Let's assume the volume was already deleted and continue to remove the container
- continue
- }
+ // Remove container from named volume dependencies buckets
+ for _, vol := range ctr.config.NamedVolumes {
+ volDB := volBkt.Bucket([]byte(vol.Name))
+ if volDB == nil {
+ // Let's assume the volume was already deleted and
+ // continue to remove the container
+ continue
+ }
- ctrDepsBkt := volDB.Bucket(volDependenciesBkt)
- if depExists := ctrDepsBkt.Get(ctrID); depExists != nil {
- if err := ctrDepsBkt.Delete(ctrID); err != nil {
- return errors.Wrapf(err, "error deleting container dependencies %q for volume %s in ctrDependencies bucket in DB", ctr.ID(), volName)
- }
+ ctrDepsBkt := volDB.Bucket(volDependenciesBkt)
+ if depExists := ctrDepsBkt.Get(ctrID); depExists == nil {
+ if err := ctrDepsBkt.Delete(ctrID); err != nil {
+ return errors.Wrapf(err, "error deleting container %s dependency on volume %s", ctr.ID(), vol.Name)
}
}
}
diff --git a/libpod/container.go b/libpod/container.go
index 739406e42..6d5e063ab 100644
--- a/libpod/container.go
+++ b/libpod/container.go
@@ -234,6 +234,8 @@ type ContainerConfig struct {
// These include the SHM mount.
// These must be unmounted before the container's rootfs is unmounted.
Mounts []string `json:"mounts,omitempty"`
+ // NamedVolumes lists the named volumes to mount into the container.
+ NamedVolumes []*ContainerNamedVolume `json:"namedVolumes,omitempty"`
// Security Config
@@ -354,9 +356,6 @@ type ContainerConfig struct {
// ExitCommand is the container's exit command.
// This Command will be executed when the container exits
ExitCommand []string `json:"exitCommand,omitempty"`
- // LocalVolumes are the built-in volumes we get from the --volumes-from flag
- // It picks up the built-in volumes of the container used by --volumes-from
- LocalVolumes []spec.Mount
// IsInfra is a bool indicating whether this container is an infra container used for
// sharing kernel namespaces in a pod
IsInfra bool `json:"pause"`
@@ -368,6 +367,18 @@ type ContainerConfig struct {
HealthCheckConfig *manifest.Schema2HealthConfig `json:"healthcheck"`
}
+// ContainerNamedVolume is a named volume that will be mounted into the
+// container. Each named volume is a libpod Volume present in the state.
+type ContainerNamedVolume struct {
+ // Name is the name of the volume to mount in.
+ // Must resolve to a valid volume present in this Podman.
+ Name string `json:"volumeName"`
+ // Dest is the mount's destination
+ Dest string `json:"dest"`
+ // Options are fstab style mount options
+ Options []string `json:"options,omitempty"`
+}
+
// ContainerStatus returns a string representation for users
// of a container state
func (t ContainerStatus) String() string {
@@ -488,6 +499,22 @@ func (c *Container) StaticDir() string {
return c.config.StaticDir
}
+// NamedVolumes returns the container's named volumes.
+// The name of each is guaranteed to point to a valid libpod Volume present in
+// the state.
+func (c *Container) NamedVolumes() []*ContainerNamedVolume {
+ volumes := []*ContainerNamedVolume{}
+ for _, vol := range c.config.NamedVolumes {
+ newVol := new(ContainerNamedVolume)
+ newVol.Name = vol.Name
+ newVol.Dest = vol.Dest
+ newVol.Options = vol.Options
+ volumes = append(volumes, newVol)
+ }
+
+ return volumes
+}
+
// Privileged returns whether the container is privileged
func (c *Container) Privileged() bool {
return c.config.Privileged
diff --git a/libpod/container_internal.go b/libpod/container_internal.go
index daa32007a..22df36c11 100644
--- a/libpod/container_internal.go
+++ b/libpod/container_internal.go
@@ -1403,22 +1403,6 @@ func getExcludedCGroups() (excludes []string) {
return
}
-// namedVolumes returns named volumes for the container
-func (c *Container) namedVolumes() ([]string, error) {
- var volumes []string
- for _, vol := range c.config.Spec.Mounts {
- if strings.HasPrefix(vol.Source, c.runtime.config.VolumePath) {
- volume := strings.TrimPrefix(vol.Source, c.runtime.config.VolumePath+"/")
- split := strings.Split(volume, "/")
- volume = split[0]
- if _, err := c.runtime.state.Volume(volume); err == nil {
- volumes = append(volumes, volume)
- }
- }
- }
- return volumes, nil
-}
-
// this should be from chrootarchive.
func (c *Container) copyWithTarFromImage(src, dest string) error {
mountpoint, err := c.mount()
diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go
index 504d6c135..4d6bf61a3 100644
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@@ -195,6 +195,7 @@ func (c *Container) generateSpec(ctx context.Context) (*spec.Spec, error) {
if err := c.makeBindMounts(); err != nil {
return nil, err
}
+
// Check if the spec file mounts contain the label Relabel flags z or Z.
// If they do, relabel the source directory and then remove the option.
for i := range g.Config.Mounts {
@@ -218,6 +219,23 @@ func (c *Container) generateSpec(ctx context.Context) (*spec.Spec, error) {
g.SetProcessSelinuxLabel(c.ProcessLabel())
g.SetLinuxMountLabel(c.MountLabel())
+
+ // Add named volumes
+ for _, namedVol := range c.config.NamedVolumes {
+ volume, err := c.runtime.GetVolume(namedVol.Name)
+ if err != nil {
+ return nil, errors.Wrapf(err, "error retrieving volume %s to add to container %s", namedVol.Name, c.ID())
+ }
+ mountPoint := volume.MountPoint()
+ volMount := spec.Mount{
+ Type: "bind",
+ Source: mountPoint,
+ Destination: namedVol.Dest,
+ Options: namedVol.Options,
+ }
+ g.AddMount(volMount)
+ }
+
// Add bind mounts to container
for dstPath, srcPath := range c.state.BindMounts {
newMount := spec.Mount{
diff --git a/libpod/in_memory_state.go b/libpod/in_memory_state.go
index ab4fc8ba7..2669206df 100644
--- a/libpod/in_memory_state.go
+++ b/libpod/in_memory_state.go
@@ -249,11 +249,8 @@ func (s *InMemoryState) AddContainer(ctr *Container) error {
}
// Add container to volume dependencies
- for _, vol := range ctr.config.Spec.Mounts {
- if strings.Contains(vol.Source, ctr.runtime.config.VolumePath) {
- volName := strings.Split(vol.Source[len(ctr.runtime.config.VolumePath)+1:], "/")[0]
- s.addCtrToVolDependsMap(ctr.ID(), volName)
- }
+ for _, vol := range ctr.config.NamedVolumes {
+ s.addCtrToVolDependsMap(ctr.ID(), vol.Name)
}
return nil
@@ -306,12 +303,9 @@ func (s *InMemoryState) RemoveContainer(ctr *Container) error {
s.removeCtrFromDependsMap(ctr.ID(), depCtr)
}
- // Remove container from volume dependencies
- for _, vol := range ctr.config.Spec.Mounts {
- if strings.Contains(vol.Source, ctr.runtime.config.VolumePath) {
- volName := strings.Split(vol.Source[len(ctr.runtime.config.VolumePath)+1:], "/")[0]
- s.removeCtrFromVolDependsMap(ctr.ID(), volName)
- }
+ // Remove this container from volume dependencies
+ for _, vol := range ctr.config.NamedVolumes {
+ s.removeCtrFromVolDependsMap(ctr.ID(), vol.Name)
}
return nil
@@ -492,22 +486,6 @@ func (s *InMemoryState) RemoveVolume(volume *Volume) error {
return nil
}
-// RemoveVolCtrDep updates the container dependencies of the volume
-func (s *InMemoryState) RemoveVolCtrDep(volume *Volume, ctrID string) error {
- if !volume.valid {
- return errors.Wrapf(ErrVolumeRemoved, "volume with name %s is not valid", volume.Name())
- }
-
- if _, ok := s.volumes[volume.Name()]; !ok {
- return errors.Wrapf(ErrNoSuchVolume, "volume with name %s doesn't exists in state", volume.Name())
- }
-
- // Remove container that is using this volume
- s.removeCtrFromVolDependsMap(ctrID, volume.Name())
-
- return nil
-}
-
// VolumeInUse checks if the given volume is being used by at least one container
func (s *InMemoryState) VolumeInUse(volume *Volume) ([]string, error) {
if !volume.valid {
diff --git a/libpod/options.go b/libpod/options.go
index 24f126e66..9326e54e4 100644
--- a/libpod/options.go
+++ b/libpod/options.go
@@ -13,7 +13,6 @@ import (
"github.com/containers/storage"
"github.com/containers/storage/pkg/idtools"
"github.com/cri-o/ocicni/pkg/ocicni"
- spec "github.com/opencontainers/runtime-spec/specs-go"
"github.com/pkg/errors"
)
@@ -1111,24 +1110,6 @@ func WithUserVolumes(volumes []string) CtrCreateOption {
}
}
-// WithLocalVolumes sets the built-in volumes of the container retrieved
-// from a container passed in to the --volumes-from flag.
-// This stores the built-in volume information in the Config so we can
-// add them when creating the container.
-func WithLocalVolumes(volumes []spec.Mount) CtrCreateOption {
- return func(ctr *Container) error {
- if ctr.valid {
- return ErrCtrFinalized
- }
-
- if volumes != nil {
- ctr.config.LocalVolumes = append(ctr.config.LocalVolumes, volumes...)
- }
-
- return nil
- }
-}
-
// WithEntrypoint sets the entrypoint of the container.
// This is not used to change the container's spec, but will instead be used
// during commit to populate the entrypoint of the new image.
@@ -1255,6 +1236,35 @@ func withIsInfra() CtrCreateOption {
}
}
+// WithNamedVolumes adds the given named volumes to the container.
+func WithNamedVolumes(volumes []*ContainerNamedVolume) CtrCreateOption {
+ return func(ctr *Container) error {
+ if ctr.valid {
+ return ErrCtrFinalized
+ }
+
+ destinations := make(map[string]bool)
+
+ for _, vol := range volumes {
+ // Don't check if they already exist.
+ // If they don't we will automatically create them.
+
+ if _, ok := destinations[vol.Dest]; ok {
+ return errors.Wrapf(ErrInvalidArg, "two volumes found with destination %s", vol.Dest)
+ }
+ destinations[vol.Dest] = true
+
+ ctr.config.NamedVolumes = append(ctr.config.NamedVolumes, &ContainerNamedVolume{
+ Name: vol.Name,
+ Dest: vol.Dest,
+ Options: vol.Options,
+ })
+ }
+
+ return nil
+ }
+}
+
// Volume Creation Options
// WithVolumeName sets the name of the volume.
@@ -1274,68 +1284,72 @@ func WithVolumeName(name string) VolumeCreateOption {
}
}
-// WithVolumeUID sets the uid of the owner.
-func WithVolumeUID(uid int) VolumeCreateOption {
+// WithVolumeLabels sets the labels of the volume.
+func WithVolumeLabels(labels map[string]string) VolumeCreateOption {
return func(volume *Volume) error {
if volume.valid {
return ErrVolumeFinalized
}
- volume.config.UID = uid
+
+ volume.config.Labels = make(map[string]string)
+ for key, value := range labels {
+ volume.config.Labels[key] = value
+ }
+
return nil
}
}
-// WithVolumeGID sets the gid of the owner.
-func WithVolumeGID(gid int) VolumeCreateOption {
+// WithVolumeDriver sets the driver of the volume.
+func WithVolumeDriver(driver string) VolumeCreateOption {
return func(volume *Volume) error {
if volume.valid {
return ErrVolumeFinalized
}
- volume.config.GID = gid
+
+ volume.config.Driver = driver
+
return nil
}
}
-// WithVolumeLabels sets the labels of the volume.
-func WithVolumeLabels(labels map[string]string) VolumeCreateOption {
+// WithVolumeOptions sets the options of the volume.
+func WithVolumeOptions(options map[string]string) VolumeCreateOption {
return func(volume *Volume) error {
if volume.valid {
return ErrVolumeFinalized
}
- volume.config.Labels = make(map[string]string)
- for key, value := range labels {
- volume.config.Labels[key] = value
+ volume.config.Options = make(map[string]string)
+ for key, value := range options {
+ volume.config.Options[key] = value
}
return nil
}
}
-// WithVolumeDriver sets the driver of the volume.
-func WithVolumeDriver(driver string) VolumeCreateOption {
+// WithVolumeUID sets the UID that the volume will be created as.
+func WithVolumeUID(uid int) VolumeCreateOption {
return func(volume *Volume) error {
if volume.valid {
return ErrVolumeFinalized
}
- volume.config.Driver = driver
+ volume.config.UID = uid
return nil
}
}
-// WithVolumeOptions sets the options of the volume.
-func WithVolumeOptions(options map[string]string) VolumeCreateOption {
+// WithVolumeGID sets the GID that the volume will be created as.
+func WithVolumeGID(gid int) VolumeCreateOption {
return func(volume *Volume) error {
if volume.valid {
return ErrVolumeFinalized
}
- volume.config.Options = make(map[string]string)
- for key, value := range options {
- volume.config.Options[key] = value
- }
+ volume.config.GID = gid
return nil
}
diff --git a/libpod/runtime_ctr.go b/libpod/runtime_ctr.go
index da2399685..800b42851 100644
--- a/libpod/runtime_ctr.go
+++ b/libpod/runtime_ctr.go
@@ -99,9 +99,6 @@ func (r *Runtime) newContainer(ctx context.Context, rSpec *spec.Spec, options ..
ctr.state.State = ContainerStateConfigured
ctr.runtime = r
- ctr.valid = true
- ctr.state.State = ContainerStateConfigured
-
var pod *Pod
if ctr.config.Pod != "" {
// Get the pod from state
@@ -173,24 +170,29 @@ func (r *Runtime) newContainer(ctx context.Context, rSpec *spec.Spec, options ..
ctr.config.ConmonPidFile = filepath.Join(ctr.config.StaticDir, "conmon.pid")
}
- // Go through the volume mounts and check for named volumes
- // If the named volme already exists continue, otherwise create
- // the storage for the named volume.
- for i, vol := range ctr.config.Spec.Mounts {
- if vol.Source[0] != '/' && isNamedVolume(vol.Source) {
- volInfo, err := r.state.Volume(vol.Source)
- if err != nil {
- newVol, err := r.newVolume(ctx, WithVolumeName(vol.Source), withSetCtrSpecific(), WithVolumeUID(ctr.RootUID()), WithVolumeGID(ctr.RootGID()))
- if err != nil {
- return nil, errors.Wrapf(err, "error creating named volume %q", vol.Source)
- }
- ctr.config.Spec.Mounts[i].Source = newVol.MountPoint()
- if err := ctr.copyWithTarFromImage(ctr.config.Spec.Mounts[i].Destination, ctr.config.Spec.Mounts[i].Source); err != nil && !os.IsNotExist(err) {
- return nil, errors.Wrapf(err, "failed to copy content into new volume mount %q", vol.Source)
- }
- continue
- }
- ctr.config.Spec.Mounts[i].Source = volInfo.MountPoint()
+ // Go through named volumes and add them.
+ // If they don't exist they will be created using basic options.
+ for _, vol := range ctr.config.NamedVolumes {
+ // Check if it exists already
+ _, err := r.state.Volume(vol.Name)
+ if err == nil {
+ // The volume exists, we're good
+ continue
+ } else if errors.Cause(err) != ErrNoSuchVolume {
+ return nil, errors.Wrapf(err, "error retrieving named volume %s for new container", vol.Name)
+ }
+
+ logrus.Debugf("Creating new volume %s for container", vol.Name)
+
+ // The volume does not exist, so we need to create it.
+ newVol, err := r.newVolume(ctx, WithVolumeName(vol.Name), withSetCtrSpecific(),
+ WithVolumeUID(ctr.RootUID()), WithVolumeGID(ctr.RootGID()))
+ if err != nil {
+ return nil, errors.Wrapf(err, "error creating named volume %q", vol.Name)
+ }
+
+ if err := ctr.copyWithTarFromImage(vol.Dest, newVol.MountPoint()); err != nil && !os.IsNotExist(err) {
+ return nil, errors.Wrapf(err, "Failed to copy content into new volume mount %q", vol.Name)
}
}
@@ -344,13 +346,6 @@ func (r *Runtime) removeContainer(ctx context.Context, c *Container, force bool,
return errors.Wrapf(ErrCtrExists, "container %s has dependent containers which must be removed before it: %s", c.ID(), depsStr)
}
- var volumes []string
- if removeVolume {
- volumes, err = c.namedVolumes()
- if err != nil {
- logrus.Errorf("unable to retrieve builtin volumes for container %v: %v", c.ID(), err)
- }
- }
var cleanupErr error
// Remove the container from the state
if c.config.Pod != "" {
@@ -415,8 +410,12 @@ func (r *Runtime) removeContainer(ctx context.Context, c *Container, force bool,
}
}
- for _, v := range volumes {
- if volume, err := runtime.state.Volume(v); err == nil {
+ if !removeVolume {
+ return cleanupErr
+ }
+
+ for _, v := range c.config.NamedVolumes {
+ if volume, err := runtime.state.Volume(v.Name); err == nil {
if !volume.IsCtrSpecific() {
continue
}
@@ -548,14 +547,6 @@ func (r *Runtime) GetLatestContainer() (*Container, error) {
return ctrs[lastCreatedIndex], nil
}
-// Check if volName is a named volume and not one of the default mounts we add to containers
-func isNamedVolume(volName string) bool {
- if volName != "proc" && volName != "tmpfs" && volName != "devpts" && volName != "shm" && volName != "mqueue" && volName != "sysfs" && volName != "cgroup" {
- return true
- }
- return false
-}
-
// Export is the libpod portion of exporting a container to a tar file
func (r *Runtime) Export(name string, path string) error {
ctr, err := r.LookupContainer(name)
diff --git a/libpod/runtime_volume_linux.go b/libpod/runtime_volume_linux.go
index db5c29242..40040fc52 100644
--- a/libpod/runtime_volume_linux.go
+++ b/libpod/runtime_volume_linux.go
@@ -98,12 +98,26 @@ func (r *Runtime) removeVolume(ctx context.Context, v *Volume, force bool) error
if !force {
return errors.Wrapf(ErrVolumeBeingUsed, "volume %s is being used by the following container(s): %s", v.Name(), depsStr)
}
- // If using force, log the warning that the volume is being used by at least one container
- logrus.Warnf("volume %s is being used by the following container(s): %s", v.Name(), depsStr)
- // Remove the container dependencies so we can go ahead and delete the volume
+
+ // We need to remove all containers using the volume
for _, dep := range deps {
- if err := r.state.RemoveVolCtrDep(v, dep); err != nil {
- return errors.Wrapf(err, "unable to remove container dependency %q from volume %q while trying to delete volume by force", dep, v.Name())
+ ctr, err := r.state.Container(dep)
+ if err != nil {
+ // If the container's removed, no point in
+ // erroring.
+ if errors.Cause(err) == ErrNoSuchCtr || errors.Cause(err) == ErrCtrRemoved {
+ continue
+ }
+
+ return errors.Wrapf(err, "error removing container %s that depends on volume %s", dep, v.Name())
+ }
+
+ // TODO: do we want to set force here when removing
+ // containers?
+ // I'm inclined to say no, in case someone accidentally
+ // wipes a container they're using...
+ if err := r.removeContainer(ctx, ctr, false, false); err != nil {
+ return errors.Wrapf(err, "error removing container %s that depends on volume %s", ctr.ID(), v.Name())
}
}
}
diff --git a/libpod/state.go b/libpod/state.go
index 4296fc3cd..d0ad1a1f8 100644
--- a/libpod/state.go
+++ b/libpod/state.go
@@ -192,10 +192,6 @@ type State interface {
// AddVolume adds the specified volume to state. The volume's name
// must be unique within the list of existing volumes
AddVolume(volume *Volume) error
- // RemoveVolCtrDep updates the list of container dependencies that the
- // volume has. It either deletes the dependent container ID from
- // the sub-bucket
- RemoveVolCtrDep(volume *Volume, ctrID string) error
// RemoveVolume removes the specified volume.
// Only volumes that have no container dependencies can be removed
RemoveVolume(volume *Volume) error
diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go
index a433fc16d..e71d9d3db 100644
--- a/pkg/spec/createconfig.go
+++ b/pkg/spec/createconfig.go
@@ -1,7 +1,6 @@
package createconfig
import (
- "encoding/json"
"fmt"
"net"
"os"
@@ -23,18 +22,16 @@ import (
"golang.org/x/sys/unix"
)
-type mountType string
-
// Type constants
const (
bps = iota
iops
// TypeBind is the type for mounting host dir
- TypeBind mountType = "bind"
+ TypeBind = "bind"
// TypeVolume is the type for remote storage volumes
- // TypeVolume mountType = "volume" // re-enable upon use
+ // TypeVolume = "volume" // re-enable upon use
// TypeTmpfs is the type for mounting tmpfs
- TypeTmpfs mountType = "tmpfs"
+ TypeTmpfs = "tmpfs"
)
// CreateResourceConfig represents resource elements in CreateConfig
@@ -130,15 +127,15 @@ type CreateConfig struct {
Mounts []spec.Mount //mounts
Volumes []string //volume
VolumesFrom []string
- WorkDir string //workdir
- LabelOpts []string //SecurityOpts
- NoNewPrivs bool //SecurityOpts
- ApparmorProfile string //SecurityOpts
- SeccompProfilePath string //SecurityOpts
+ NamedVolumes []*libpod.ContainerNamedVolume // Filled in by CreateConfigToOCISpec
+ WorkDir string //workdir
+ LabelOpts []string //SecurityOpts
+ NoNewPrivs bool //SecurityOpts
+ ApparmorProfile string //SecurityOpts
+ SeccompProfilePath string //SecurityOpts
SecurityOpts []string
Rootfs string
- LocalVolumes []spec.Mount //Keeps track of the built-in volumes of container used in the --volumes-from flag
- Syslog bool // Whether to enable syslog on exit commands
+ Syslog bool // Whether to enable syslog on exit commands
}
func u32Ptr(i int64) *uint32 { u := uint32(i); return &u }
@@ -172,9 +169,9 @@ func (c *CreateConfig) AddContainerInitBinary(path string) error {
c.Command = append([]string{"/dev/init", "--"}, c.Command...)
c.Mounts = append(c.Mounts, spec.Mount{
Destination: "/dev/init",
- Type: "bind",
+ Type: TypeBind,
Source: path,
- Options: []string{"bind", "ro"},
+ Options: []string{TypeBind, "ro"},
})
return nil
}
@@ -217,9 +214,9 @@ func (c *CreateConfig) initFSMounts() []spec.Mount {
return mounts
}
-//GetVolumeMounts takes user provided input for bind mounts and creates Mount structs
+// GetVolumeMounts takes user provided input for bind mounts and creates Mount structs
func (c *CreateConfig) GetVolumeMounts(specMounts []spec.Mount) ([]spec.Mount, error) {
- m := c.LocalVolumes
+ m := []spec.Mount{}
for _, i := range c.Volumes {
var options []string
spliti := strings.Split(i, ":")
@@ -255,9 +252,11 @@ func (c *CreateConfig) GetVolumeMounts(specMounts []spec.Mount) ([]spec.Mount, e
mount.Source = "tmpfs"
mount.Options = append(mount.Options, "tmpcopyup")
} else {
+ // TODO: Move support for this and tmpfs into libpod
+ // Should tmpfs also be handled as named volumes? Wouldn't be hard
// This will cause a new local Volume to be created on your system
mount.Source = stringid.GenerateNonCryptoID()
- mount.Options = append(mount.Options, "bind")
+ mount.Options = append(mount.Options, TypeBind)
}
m = append(m, mount)
}
@@ -268,13 +267,12 @@ func (c *CreateConfig) GetVolumeMounts(specMounts []spec.Mount) ([]spec.Mount, e
// GetVolumesFrom reads the create-config artifact of the container to get volumes from
// and adds it to c.Volumes of the current container.
func (c *CreateConfig) GetVolumesFrom() error {
- var options string
-
if os.Geteuid() != 0 {
return nil
}
for _, vol := range c.VolumesFrom {
+ options := ""
splitVol := strings.SplitN(vol, ":", 2)
if len(splitVol) == 2 {
options = splitVol[1]
@@ -283,41 +281,60 @@ func (c *CreateConfig) GetVolumesFrom() error {
if err != nil {
return errors.Wrapf(err, "error looking up container %q", splitVol[0])
}
- inspect, err := ctr.Inspect(false)
- if err != nil {
- return errors.Wrapf(err, "error inspecting %q", splitVol[0])
- }
- var createArtifact CreateConfig
- artifact, err := ctr.GetArtifact("create-config")
- if err != nil {
- return errors.Wrapf(err, "error getting create-config artifact for %q", 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
}
- if err := json.Unmarshal(artifact, &createArtifact); err != nil {
- return err
+
+ // 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 errors.Errorf("error retrieving container %s spec", ctr.ID())
}
- for key := range createArtifact.BuiltinImgVolumes {
- for _, m := range inspect.Mounts {
- if m.Destination == key {
- c.LocalVolumes = append(c.LocalVolumes, m)
- break
+ for _, mnt := range spec.Mounts {
+ if mnt.Type != TypeBind {
+ continue
+ }
+ if _, exists := userVolumes[mnt.Destination]; exists {
+ userVolumes[mnt.Destination] = true
+ localOptions := options
+ if localOptions == "" {
+ localOptions = strings.Join(mnt.Options, ",")
}
+ c.Volumes = append(c.Volumes, fmt.Sprintf("%s:%s:%s", mnt.Source, mnt.Destination, localOptions))
}
}
- for _, i := range createArtifact.Volumes {
- // Volumes format is host-dir:ctr-dir[:options], so get the host and ctr dir
- // and add on the options given by the user to the flag.
- spliti := strings.SplitN(i, ":", 3)
- // Throw error if mounting volume from container with Z option (private label)
- // Override this by adding 'z' to options.
- if len(spliti) > 2 && strings.Contains(spliti[2], "Z") && !strings.Contains(options, "z") {
- return errors.Errorf("volume mounted with private option 'Z' in %q. Use option 'z' to mount in current container", ctr.ID())
+ // 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 options == "" {
- // Mount the volumes with the default options
- c.Volumes = append(c.Volumes, createArtifact.Volumes...)
- } else {
- c.Volumes = append(c.Volumes, spliti[0]+":"+spliti[1]+":"+options)
+ localOptions := options
+ if localOptions == "" {
+ localOptions = strings.Join(namedVol.Options, ",")
+ }
+ c.Volumes = append(c.Volumes, fmt.Sprintf("%s:%s:%s", namedVol.Name, namedVol.Dest, localOptions))
+ }
+
+ // 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())
}
}
}
@@ -417,14 +434,20 @@ func (c *CreateConfig) GetContainerCreateOptions(runtime *libpod.Runtime, pod *l
// others, if they are included
volumes := make([]string, 0, len(c.Volumes))
for _, vol := range c.Volumes {
- volumes = append(volumes, strings.SplitN(vol, ":", 2)[0])
+ // We always want the volume destination
+ splitVol := strings.SplitN(vol, ":", 3)
+ if len(splitVol) > 1 {
+ volumes = append(volumes, splitVol[1])
+ } else {
+ volumes = append(volumes, splitVol[0])
+ }
}
options = append(options, libpod.WithUserVolumes(volumes))
}
- if len(c.LocalVolumes) != 0 {
- options = append(options, libpod.WithLocalVolumes(c.LocalVolumes))
+ if len(c.NamedVolumes) != 0 {
+ options = append(options, libpod.WithNamedVolumes(c.NamedVolumes))
}
if len(c.Command) != 0 {
@@ -538,7 +561,7 @@ func (c *CreateConfig) GetContainerCreateOptions(runtime *libpod.Runtime, pod *l
options = append(options, libpod.WithPrivileged(c.Privileged))
- useImageVolumes := c.ImageVolumeType == "bind"
+ useImageVolumes := c.ImageVolumeType == TypeBind
// Gather up the options for NewContainer which consist of With... funcs
options = append(options, libpod.WithRootFSFromImage(c.ImageID, c.Image, useImageVolumes))
options = append(options, libpod.WithSecLabels(c.LabelOpts))
diff --git a/pkg/spec/spec.go b/pkg/spec/spec.go
index a61741f73..9b6bd089e 100644
--- a/pkg/spec/spec.go
+++ b/pkg/spec/spec.go
@@ -6,6 +6,7 @@ import (
"path/filepath"
"strings"
+ "github.com/containers/libpod/libpod"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/storage/pkg/mount"
pmount "github.com/containers/storage/pkg/mount"
@@ -48,6 +49,33 @@ func supercedeUserMounts(mounts []spec.Mount, configMount []spec.Mount) []spec.M
return configMount
}
+// Split named volumes from normal volumes
+func splitNamedVolumes(mounts []spec.Mount) ([]spec.Mount, []*libpod.ContainerNamedVolume) {
+ newMounts := make([]spec.Mount, 0)
+ namedVolumes := make([]*libpod.ContainerNamedVolume, 0)
+ for _, mount := range mounts {
+ // If it's not a named volume, append unconditionally
+ if mount.Type != TypeBind {
+ newMounts = append(newMounts, mount)
+ continue
+ }
+ // Volumes that are not named volumes must be an absolute or
+ // relative path.
+ // Volume names may not begin with a non-alphanumeric character
+ // so the HasPrefix() check is safe here.
+ if strings.HasPrefix(mount.Source, "/") || strings.HasPrefix(mount.Source, ".") {
+ newMounts = append(newMounts, mount)
+ } else {
+ namedVolume := new(libpod.ContainerNamedVolume)
+ namedVolume.Name = mount.Source
+ namedVolume.Dest = mount.Destination
+ namedVolume.Options = mount.Options
+ namedVolumes = append(namedVolumes, namedVolume)
+ }
+ }
+ return newMounts, namedVolumes
+}
+
func getAvailableGids() (int64, error) {
idMap, err := user.ParseIDMapFile("/proc/self/gid_map")
if err != nil {
@@ -99,7 +127,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
}
sysMnt := spec.Mount{
Destination: "/sys",
- Type: "bind",
+ Type: TypeBind,
Source: "/sys",
Options: []string{"rprivate", "nosuid", "noexec", "nodev", r, "rbind"},
}
@@ -126,7 +154,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
g.RemoveMount("/dev/mqueue")
devMqueue := spec.Mount{
Destination: "/dev/mqueue",
- Type: "bind",
+ Type: TypeBind,
Source: "/dev/mqueue",
Options: []string{"bind", "nosuid", "noexec", "nodev"},
}
@@ -136,7 +164,7 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
g.RemoveMount("/proc")
procMount := spec.Mount{
Destination: "/proc",
- Type: "bind",
+ Type: TypeBind,
Source: "/proc",
Options: []string{"rbind", "nosuid", "noexec", "nodev"},
}
@@ -377,6 +405,12 @@ func CreateConfigToOCISpec(config *CreateConfig) (*spec.Spec, error) { //nolint
configSpec.Mounts = supercedeUserMounts(volumeMounts, configSpec.Mounts)
//--mount
configSpec.Mounts = supercedeUserMounts(config.initFSMounts(), configSpec.Mounts)
+
+ // Split normal mounts and named volumes
+ newMounts, namedVolumes := splitNamedVolumes(configSpec.Mounts)
+ configSpec.Mounts = newMounts
+ config.NamedVolumes = namedVolumes
+
// BLOCK IO
blkio, err := config.CreateBlockIO()
if err != nil {
diff --git a/test/e2e/commit_test.go b/test/e2e/commit_test.go
index bf9c88de5..fe4ae64cf 100644
--- a/test/e2e/commit_test.go
+++ b/test/e2e/commit_test.go
@@ -144,7 +144,7 @@ var _ = Describe("Podman commit", func() {
inspect.WaitWithDefaultTimeout()
Expect(inspect.ExitCode()).To(Equal(0))
image := inspect.InspectImageJSON()
- _, ok := image[0].Config.Volumes["/tmp"]
+ _, ok := image[0].Config.Volumes["/foo"]
Expect(ok).To(BeTrue())
r := podmanTest.Podman([]string{"run", "newimage"})
diff --git a/test/e2e/run_test.go b/test/e2e/run_test.go
index 2daf2fe5b..a89ee491b 100644
--- a/test/e2e/run_test.go
+++ b/test/e2e/run_test.go
@@ -611,7 +611,6 @@ USER mail`
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
Expect(session.OutputToString()).To(ContainSubstring("data"))
-
})
It("podman run --volumes flag with multiple volumes", func() {
diff --git a/test/e2e/volume_rm_test.go b/test/e2e/volume_rm_test.go
index 888474670..39628d56f 100644
--- a/test/e2e/volume_rm_test.go
+++ b/test/e2e/volume_rm_test.go
@@ -32,7 +32,7 @@ var _ = Describe("Podman volume rm", func() {
})
- It("podman rm volume", func() {
+ It("podman volume rm", func() {
session := podmanTest.Podman([]string{"volume", "create", "myvol"})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
@@ -47,7 +47,7 @@ var _ = Describe("Podman volume rm", func() {
Expect(len(session.OutputToStringArray())).To(Equal(0))
})
- It("podman rm with --force flag", func() {
+ It("podman volume rm with --force flag", func() {
SkipIfRemote()
session := podmanTest.Podman([]string{"create", "-v", "myvol:/myvol", ALPINE, "ls"})
cid := session.OutputToString()
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-26 04:59:07 +0000