summaryrefslogtreecommitdiff
path: root/libpod
diff options
context:
space:
mode:
Diffstat (limited to 'libpod')
-rw-r--r--libpod/container.go10
-rw-r--r--libpod/container_exec.go67
-rw-r--r--libpod/container_internal.go5
-rw-r--r--libpod/container_internal_linux.go5
-rw-r--r--libpod/events.go39
-rw-r--r--libpod/events/config.go2
-rw-r--r--libpod/events/events.go2
-rw-r--r--libpod/networking_linux.go4
-rw-r--r--libpod/oci_conmon_linux.go6
-rw-r--r--libpod/options.go13
-rw-r--r--libpod/volume_internal.go19
11 files changed, 138 insertions, 34 deletions
diff --git a/libpod/container.go b/libpod/container.go
index c6f0cd618..4b9bea5fc 100644
--- a/libpod/container.go
+++ b/libpod/container.go
@@ -957,6 +957,12 @@ func (c *Container) cGroupPath() (string, error) {
// is the libpod-specific one we're looking for.
//
// See #8397 on the need for the longest-path look up.
+ //
+ // And another workaround for containers running systemd as the payload.
+ // containers running systemd moves themselves into a child subgroup of
+ // the named systemd cgroup hierarchy. Ignore any named cgroups during
+ // the lookup.
+ // See #10602 for more details.
procPath := fmt.Sprintf("/proc/%d/cgroup", c.state.PID)
lines, err := ioutil.ReadFile(procPath)
if err != nil {
@@ -972,6 +978,10 @@ func (c *Container) cGroupPath() (string, error) {
logrus.Debugf("Error parsing cgroup: expected 3 fields but got %d: %s", len(fields), procPath)
continue
}
+ // Ignore named cgroups like name=systemd.
+ if bytes.Contains(fields[1], []byte("=")) {
+ continue
+ }
path := string(fields[2])
if len(path) > len(cgroupPath) {
cgroupPath = path
diff --git a/libpod/container_exec.go b/libpod/container_exec.go
index c359f1e5d..737bf74ad 100644
--- a/libpod/container_exec.go
+++ b/libpod/container_exec.go
@@ -1,6 +1,7 @@
package libpod
import (
+ "context"
"io/ioutil"
"net/http"
"os"
@@ -539,18 +540,7 @@ func (c *Container) ExecStop(sessionID string, timeout *uint) error {
var cleanupErr error
// Retrieve exit code and update status
- exitCode, err := c.readExecExitCode(session.ID())
- if err != nil {
- cleanupErr = err
- }
- session.ExitCode = exitCode
- session.PID = 0
- session.State = define.ExecStateStopped
-
- if err := c.save(); err != nil {
- if cleanupErr != nil {
- logrus.Errorf("Error stopping container %s exec session %s: %v", c.ID(), session.ID(), cleanupErr)
- }
+ if err := retrieveAndWriteExecExitCode(c, session.ID()); err != nil {
cleanupErr = err
}
@@ -592,15 +582,7 @@ func (c *Container) ExecCleanup(sessionID string) error {
return errors.Wrapf(define.ErrExecSessionStateInvalid, "cannot clean up container %s exec session %s as it is running", c.ID(), session.ID())
}
- exitCode, err := c.readExecExitCode(session.ID())
- if err != nil {
- return err
- }
- session.ExitCode = exitCode
- session.PID = 0
- session.State = define.ExecStateStopped
-
- if err := c.save(); err != nil {
+ if err := retrieveAndWriteExecExitCode(c, session.ID()); err != nil {
return err
}
}
@@ -637,9 +619,9 @@ func (c *Container) ExecRemove(sessionID string, force bool) error {
return err
}
if !running {
- session.State = define.ExecStateStopped
- // TODO: should we retrieve exit code here?
- // TODO: Might be worth saving state here.
+ if err := retrieveAndWriteExecExitCode(c, session.ID()); err != nil {
+ return err
+ }
}
}
@@ -653,6 +635,10 @@ func (c *Container) ExecRemove(sessionID string, force bool) error {
return err
}
+ if err := retrieveAndWriteExecExitCode(c, session.ID()); err != nil {
+ return err
+ }
+
if err := c.cleanupExecBundle(session.ID()); err != nil {
return err
}
@@ -757,10 +743,25 @@ func (c *Container) Exec(config *ExecConfig, streams *define.AttachStreams, resi
session, err := c.ExecSession(sessionID)
if err != nil {
+ if errors.Cause(err) == define.ErrNoSuchExecSession {
+ // TODO: If a proper Context is ever plumbed in here, we
+ // should use it.
+ // As things stand, though, it's not worth it - this
+ // should always terminate quickly since it's not
+ // streaming.
+ diedEvent, err := c.runtime.GetExecDiedEvent(context.Background(), c.ID(), sessionID)
+ if err != nil {
+ return -1, errors.Wrapf(err, "error retrieving exec session %s exit code", sessionID)
+ }
+ return diedEvent.ContainerExitCode, nil
+ }
return -1, err
}
exitCode := session.ExitCode
if err := c.ExecRemove(sessionID, false); err != nil {
+ if errors.Cause(err) == define.ErrNoSuchExecSession {
+ return exitCode, nil
+ }
return -1, err
}
@@ -927,6 +928,8 @@ func (c *Container) getActiveExecSessions() ([]string, error) {
session.PID = 0
session.State = define.ExecStateStopped
+ c.newExecDiedEvent(session.ID(), exitCode)
+
needSave = true
}
if err := c.cleanupExecBundle(id); err != nil {
@@ -1036,6 +1039,22 @@ func writeExecExitCode(c *Container, sessionID string, exitCode int) error {
return errors.Wrapf(err, "error syncing container %s state to remove exec session %s", c.ID(), sessionID)
}
+ return justWriteExecExitCode(c, sessionID, exitCode)
+}
+
+func retrieveAndWriteExecExitCode(c *Container, sessionID string) error {
+ exitCode, err := c.readExecExitCode(sessionID)
+ if err != nil {
+ return err
+ }
+
+ return justWriteExecExitCode(c, sessionID, exitCode)
+}
+
+func justWriteExecExitCode(c *Container, sessionID string, exitCode int) error {
+ // Write an event first
+ c.newExecDiedEvent(sessionID, exitCode)
+
session, ok := c.state.ExecSessions[sessionID]
if !ok {
// Exec session already removed.
diff --git a/libpod/container_internal.go b/libpod/container_internal.go
index f77825efd..3e4eea003 100644
--- a/libpod/container_internal.go
+++ b/libpod/container_internal.go
@@ -42,6 +42,7 @@ const (
// name of the directory holding the artifacts
artifactsDir = "artifacts"
execDirPermission = 0755
+ preCheckpointDir = "pre-checkpoint"
)
// rootFsSize gets the size of the container's root filesystem
@@ -141,7 +142,7 @@ func (c *Container) CheckpointPath() string {
// PreCheckpointPath returns the path to the directory containing the pre-checkpoint-images
func (c *Container) PreCheckPointPath() string {
- return filepath.Join(c.bundlePath(), "pre-checkpoint")
+ return filepath.Join(c.bundlePath(), preCheckpointDir)
}
// AttachSocketPath retrieves the path of the container's attach socket
@@ -427,7 +428,7 @@ func (c *Container) setupStorage(ctx context.Context) error {
},
LabelOpts: c.config.LabelOpts,
}
- if c.restoreFromCheckpoint {
+ if c.restoreFromCheckpoint && !c.config.Privileged {
// If restoring from a checkpoint, the root file-system
// needs to be mounted with the same SELinux labels as
// it was mounted previously.
diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go
index 94bf7855b..ddfccb999 100644
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@@ -909,14 +909,15 @@ func (c *Container) exportCheckpoint(options ContainerCheckpointOptions) error {
includeFiles := []string{
"artifacts",
"ctr.log",
- metadata.CheckpointDirectory,
metadata.ConfigDumpFile,
metadata.SpecDumpFile,
metadata.NetworkStatusFile,
}
if options.PreCheckPoint {
- includeFiles[0] = "pre-checkpoint"
+ includeFiles = append(includeFiles, preCheckpointDir)
+ } else {
+ includeFiles = append(includeFiles, metadata.CheckpointDirectory)
}
// Get root file-system changes included in the checkpoint archive
var addToTarFiles []string
diff --git a/libpod/events.go b/libpod/events.go
index 839229674..22c51aeec 100644
--- a/libpod/events.go
+++ b/libpod/events.go
@@ -46,7 +46,22 @@ func (c *Container) newContainerExitedEvent(exitCode int32) {
e.Type = events.Container
e.ContainerExitCode = int(exitCode)
if err := c.runtime.eventer.Write(e); err != nil {
- logrus.Errorf("unable to write pod event: %q", err)
+ logrus.Errorf("unable to write container exited event: %q", err)
+ }
+}
+
+// newExecDiedEvent creates a new event for an exec session's death
+func (c *Container) newExecDiedEvent(sessionID string, exitCode int) {
+ e := events.NewEvent(events.ExecDied)
+ e.ID = c.ID()
+ e.Name = c.Name()
+ e.Image = c.config.RootfsImageName
+ e.Type = events.Container
+ e.ContainerExitCode = exitCode
+ e.Attributes = make(map[string]string)
+ e.Attributes["execID"] = sessionID
+ if err := c.runtime.eventer.Write(e); err != nil {
+ logrus.Errorf("unable to write exec died event: %q", err)
}
}
@@ -154,3 +169,25 @@ func (r *Runtime) GetLastContainerEvent(ctx context.Context, nameOrID string, co
// return the last element in the slice
return containerEvents[len(containerEvents)-1], nil
}
+
+// GetExecDiedEvent takes a container name or ID, exec session ID, and returns
+// that exec session's Died event (if it has already occurred).
+func (r *Runtime) GetExecDiedEvent(ctx context.Context, nameOrID, execSessionID string) (*events.Event, error) {
+ filters := []string{
+ fmt.Sprintf("container=%s", nameOrID),
+ "event=exec_died",
+ "type=container",
+ fmt.Sprintf("label=execID=%s", execSessionID),
+ }
+
+ containerEvents, err := r.GetEvents(ctx, filters)
+ if err != nil {
+ return nil, err
+ }
+ // There *should* only be one event maximum.
+ // But... just in case... let's not blow up if there's more than one.
+ if len(containerEvents) < 1 {
+ return nil, errors.Wrapf(events.ErrEventNotFound, "exec died event for session %s (container %s) not found", execSessionID, nameOrID)
+ }
+ return containerEvents[len(containerEvents)-1], nil
+}
diff --git a/libpod/events/config.go b/libpod/events/config.go
index 085fa9d52..d88d7b6e3 100644
--- a/libpod/events/config.go
+++ b/libpod/events/config.go
@@ -127,6 +127,8 @@ const (
Create Status = "create"
// Exec ...
Exec Status = "exec"
+ // ExecDied indicates that an exec session in a container died.
+ ExecDied Status = "exec_died"
// Exited indicates that a container's process died
Exited Status = "died"
// Export ...
diff --git a/libpod/events/events.go b/libpod/events/events.go
index 01ea6a386..e03215eff 100644
--- a/libpod/events/events.go
+++ b/libpod/events/events.go
@@ -149,6 +149,8 @@ func StringToStatus(name string) (Status, error) {
return Create, nil
case Exec.String():
return Exec, nil
+ case ExecDied.String():
+ return ExecDied, nil
case Exited.String():
return Exited, nil
case Export.String():
diff --git a/libpod/networking_linux.go b/libpod/networking_linux.go
index c928e02a6..5446841f6 100644
--- a/libpod/networking_linux.go
+++ b/libpod/networking_linux.go
@@ -1090,7 +1090,7 @@ func (c *Container) NetworkDisconnect(nameOrID, netName string, force bool) erro
}
c.newNetworkEvent(events.NetworkDisconnect, netName)
- if c.state.State != define.ContainerStateRunning {
+ if !c.ensureState(define.ContainerStateRunning, define.ContainerStateCreated) {
return nil
}
@@ -1145,7 +1145,7 @@ func (c *Container) NetworkConnect(nameOrID, netName string, aliases []string) e
return err
}
c.newNetworkEvent(events.NetworkConnect, netName)
- if c.state.State != define.ContainerStateRunning {
+ if !c.ensureState(define.ContainerStateRunning, define.ContainerStateCreated) {
return nil
}
if c.state.NetNS == nil {
diff --git a/libpod/oci_conmon_linux.go b/libpod/oci_conmon_linux.go
index 3da49b85f..2914bd1a1 100644
--- a/libpod/oci_conmon_linux.go
+++ b/libpod/oci_conmon_linux.go
@@ -787,7 +787,11 @@ func (r *ConmonOCIRuntime) CheckpointContainer(ctr *Container, options Container
args = append(args, "--pre-dump")
}
if !options.PreCheckPoint && options.WithPrevious {
- args = append(args, "--parent-path", ctr.PreCheckPointPath())
+ args = append(
+ args,
+ "--parent-path",
+ filepath.Join("..", preCheckpointDir),
+ )
}
runtimeDir, err := util.GetRuntimeDir()
if err != nil {
diff --git a/libpod/options.go b/libpod/options.go
index f942d264b..d3be46ad8 100644
--- a/libpod/options.go
+++ b/libpod/options.go
@@ -1641,6 +1641,19 @@ func WithVolumeGID(gid int) VolumeCreateOption {
}
}
+// WithVolumeNoChown prevents the volume from being chowned to the process uid at first use.
+func WithVolumeNoChown() VolumeCreateOption {
+ return func(volume *Volume) error {
+ if volume.valid {
+ return define.ErrVolumeFinalized
+ }
+
+ volume.state.NeedsChown = false
+
+ return nil
+ }
+}
+
// withSetAnon sets a bool notifying libpod that this volume is anonymous and
// should be removed when containers using it are removed and volumes are
// specified for removal.
diff --git a/libpod/volume_internal.go b/libpod/volume_internal.go
index 694cdd149..19008a253 100644
--- a/libpod/volume_internal.go
+++ b/libpod/volume_internal.go
@@ -39,8 +39,23 @@ func (v *Volume) needsMount() bool {
return true
}
- // Local driver with options needs mount
- return len(v.config.Options) > 0
+ // Commit 28138dafcc added the UID and GID options to this map
+ // However we should only mount when options other than uid and gid are set.
+ // see https://github.com/containers/podman/issues/10620
+ index := 0
+ if _, ok := v.config.Options["UID"]; ok {
+ index++
+ }
+ if _, ok := v.config.Options["GID"]; ok {
+ index++
+ }
+ // when uid or gid is set there is also the "o" option
+ // set so we have to ignore this one as well
+ if index > 0 {
+ index++
+ }
+ // Local driver with options other than uid,gid needs mount
+ return len(v.config.Options) > index
}
// update() updates the volume state from the DB.
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-10-03 13:25:06 +0000