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-rw-r--r--libpod/boltdb_state.go79
-rw-r--r--libpod/boltdb_state_internal.go53
-rw-r--r--libpod/container.go18
-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/runtime_ctr.go58
-rw-r--r--libpod/runtime_volume_linux.go14
-rw-r--r--libpod/state.go4
9 files changed, 126 insertions, 166 deletions
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 b02e536c5..74dc5be5c 100644
--- a/libpod/container.go
+++ b/libpod/container.go
@@ -371,7 +371,7 @@ type ContainerConfig struct {
}
// ContainerNamedVolume is a named volume that will be mounted into the
-// container.
+// 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.
@@ -502,6 +502,22 @@ 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/runtime_ctr.go b/libpod/runtime_ctr.go
index da2399685..ec43d5dcb 100644
--- a/libpod/runtime_ctr.go
+++ b/libpod/runtime_ctr.go
@@ -173,26 +173,29 @@ 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 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())
+ // 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 := os.Chown(ctr.config.Spec.Mounts[i].Source, ctr.RootUID(), ctr.RootGID()); err != nil {
+ // return nil, errors.Wrapf(err, "cannot chown %q to %d:%d", ctr.config.Spec.Mounts[i].Source, ctr.RootUID(), ctr.RootGID())
+ // }
+ // 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()
+ // }
+ // }
if ctr.config.LogPath == "" {
ctr.config.LogPath = filepath.Join(ctr.config.StaticDir, "ctr.log")
@@ -344,13 +347,6 @@ 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 +411,12 @@ 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
}
diff --git a/libpod/runtime_volume_linux.go b/libpod/runtime_volume_linux.go
index db5c29242..39c2f808d 100644
--- a/libpod/runtime_volume_linux.go
+++ b/libpod/runtime_volume_linux.go
@@ -98,14 +98,12 @@ 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
- 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())
- }
- }
+
+ // TODO: force-removing a volume makes *no sense*
+ // I do not believe we should be allowing this at all.
+ // For now, return angry errors.
+ // TODO: need to do something more sane in this case
+ return errors.Wrapf(ErrVolumeBeingUsed, "TODO: FIXME - still refusing to remove because force-removing an in-use volume is not good.")
}
// Set volume as invalid so it can no longer be used
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
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-27 13:27:21 +0000