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Merge pull request #9463 from abel-von/sandbox-plugin-1205

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sandbox: remove sandboxStore from podsandbox controller
This commit is contained in:
Fu Wei 2024-01-09 01:40:10 +00:00 committed by GitHub
commit 9f8b845334
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GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 473 additions and 302 deletions
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25
integration/main_test.go
View File

@ -34,16 +34,6 @@ import (
"testing"
"time"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/containers"
cri "github.com/containerd/containerd/v2/integration/cri-api/pkg/apis"
_ "github.com/containerd/containerd/v2/integration/images" // Keep this around to parse `imageListFile` command line var
"github.com/containerd/containerd/v2/integration/remote"
dialer "github.com/containerd/containerd/v2/integration/remote/util"
criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
"github.com/containerd/containerd/v2/pkg/cri/constants"
"github.com/containerd/containerd/v2/pkg/cri/server"
"github.com/containerd/containerd/v2/pkg/cri/util"
"github.com/containerd/log"
"github.com/opencontainers/selinux/go-selinux"
"github.com/stretchr/testify/assert"
@ -52,6 +42,17 @@ import (
"google.golang.org/grpc/credentials/insecure"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
"k8s.io/klog/v2"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/containers"
cri "github.com/containerd/containerd/v2/integration/cri-api/pkg/apis"
_ "github.com/containerd/containerd/v2/integration/images" // Keep this around to parse `imageListFile` command line var
"github.com/containerd/containerd/v2/integration/remote"
dialer "github.com/containerd/containerd/v2/integration/remote/util"
criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
"github.com/containerd/containerd/v2/pkg/cri/constants"
"github.com/containerd/containerd/v2/pkg/cri/server/base"
"github.com/containerd/containerd/v2/pkg/cri/util"
)
const (
@ -676,7 +677,7 @@ func CRIConfig() (*criconfig.Config, error) {
}
// SandboxInfo gets sandbox info.
func SandboxInfo(id string) (*runtime.PodSandboxStatus, *server.SandboxInfo, error) {
func SandboxInfo(id string) (*runtime.PodSandboxStatus, *base.SandboxInfo, error) {
client, err := RawRuntimeClient()
if err != nil {
return nil, nil, fmt.Errorf("failed to get raw runtime client: %w", err)
@ -689,7 +690,7 @@ func SandboxInfo(id string) (*runtime.PodSandboxStatus, *server.SandboxInfo, err
return nil, nil, fmt.Errorf("failed to get sandbox status: %w", err)
}
status := resp.GetStatus()
var info server.SandboxInfo
var info base.SandboxInfo
if err := json.Unmarshal([]byte(resp.GetInfo()["info"]), &info); err != nil {
return nil, nil, fmt.Errorf("failed to unmarshal sandbox info: %w", err)
}

6
integration/sandbox_run_rollback_test.go
View File

@ -35,7 +35,7 @@ import (
"github.com/stretchr/testify/require"
criapiv1 "k8s.io/cri-api/pkg/apis/runtime/v1"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox"
"github.com/containerd/containerd/v2/pkg/cri/server/base"
"github.com/containerd/containerd/v2/pkg/failpoint"
)
@ -299,7 +299,7 @@ func TestRunPodSandboxAndTeardownCNISlow(t *testing.T) {
}
// sbserverSandboxInfo gets sandbox info.
func sbserverSandboxInfo(id string) (*criapiv1.PodSandboxStatus, *podsandbox.SandboxInfo, error) {
func sbserverSandboxInfo(id string) (*criapiv1.PodSandboxStatus, *base.SandboxInfo, error) {
client, err := RawRuntimeClient()
if err != nil {
return nil, nil, fmt.Errorf("failed to get raw runtime client: %w", err)
@ -312,7 +312,7 @@ func sbserverSandboxInfo(id string) (*criapiv1.PodSandboxStatus, *podsandbox.San
return nil, nil, fmt.Errorf("failed to get sandbox status: %w", err)
}
status := resp.GetStatus()
var info podsandbox.SandboxInfo
var info base.SandboxInfo
if err := json.Unmarshal([]byte(resp.GetInfo()["info"]), &info); err != nil {
return nil, nil, fmt.Errorf("failed to unmarshal sandbox info: %w", err)
}

47
pkg/cri/server/base/sandbox_info.go Normal file
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@ -0,0 +1,47 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package base
import (
"github.com/containerd/go-cni"
"github.com/opencontainers/runtime-spec/specs-go"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
"github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
)
// SandboxInfo is extra information for sandbox.
// TODO (mikebrow): discuss predefining constants structures for some or all of these field names in CRI
type SandboxInfo struct {
Pid uint32 `json:"pid"`
Status string `json:"processStatus"`
NetNSClosed bool `json:"netNamespaceClosed"`
Image string `json:"image"`
SnapshotKey string `json:"snapshotKey"`
Snapshotter string `json:"snapshotter"`
// Note: a new field `RuntimeHandler` has been added into the CRI PodSandboxStatus struct, and
// should be set. This `RuntimeHandler` field will be deprecated after containerd 1.3 (tracked
// in https://github.com/containerd/cri/issues/1064).
RuntimeHandler string `json:"runtimeHandler"` // see the Note above
RuntimeType string `json:"runtimeType"`
RuntimeOptions interface{} `json:"runtimeOptions"`
Config *runtime.PodSandboxConfig `json:"config"`
// Note: RuntimeSpec may not be populated if the sandbox has not been fully created.
RuntimeSpec *specs.Spec `json:"runtimeSpec"`
CNIResult *cni.Result `json:"cniResult"`
Metadata *sandbox.Metadata `json:"sandboxMetadata"`
}

11
pkg/cri/server/events.go
View File

@ -23,6 +23,11 @@ import (
"sync"
"time"
"github.com/containerd/log"
"github.com/containerd/typeurl/v2"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
"k8s.io/utils/clock"
eventtypes "github.com/containerd/containerd/v2/api/events"
apitasks "github.com/containerd/containerd/v2/api/services/tasks/v1"
containerdio "github.com/containerd/containerd/v2/cio"
@ -34,10 +39,6 @@ import (
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
"github.com/containerd/containerd/v2/protobuf"
"github.com/containerd/log"
"github.com/containerd/typeurl/v2"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
"k8s.io/utils/clock"
)
const (
@ -108,7 +109,7 @@ func (em *eventMonitor) subscribe(subscriber events.Subscriber) {
}
// startSandboxExitMonitor starts an exit monitor for a given sandbox.
func (em *eventMonitor) startSandboxExitMonitor(ctx context.Context, id string, pid uint32, exitCh <-chan containerd.ExitStatus) <-chan struct{} {
func (em *eventMonitor) startSandboxExitMonitor(ctx context.Context, id string, exitCh <-chan containerd.ExitStatus) <-chan struct{} {
stopCh := make(chan struct{})
go func() {
defer close(stopCh)

83
pkg/cri/server/podsandbox/controller.go
View File

@ -34,8 +34,8 @@ import (
"github.com/containerd/containerd/v2/pkg/cri/constants"
"github.com/containerd/containerd/v2/pkg/cri/server/base"
"github.com/containerd/containerd/v2/pkg/cri/server/images"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
imagestore "github.com/containerd/containerd/v2/pkg/cri/store/image"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
osinterface "github.com/containerd/containerd/v2/pkg/os"
"github.com/containerd/containerd/v2/platforms"
@ -116,8 +116,6 @@ type Controller struct {
client *containerd.Client
// imageService is a dependency to CRI image service.
imageService ImageService
// sandboxStore stores all resources associated with sandboxes.
sandboxStore *sandboxstore.Store
// os is an interface for all required os operations.
os osinterface.OS
// cri is CRI service that provides missing gaps needed by controller.
@ -129,11 +127,9 @@ type Controller struct {
}
func (c *Controller) Init(
sandboxStore *sandboxstore.Store,
cri CRIService,
) {
c.cri = cri
c.sandboxStore = sandboxStore
}
var _ sandbox.Controller = (*Controller)(nil)
@ -143,63 +139,46 @@ func (c *Controller) Platform(_ctx context.Context, _sandboxID string) (platform
}
func (c *Controller) Wait(ctx context.Context, sandboxID string) (sandbox.ExitStatus, error) {
status := c.store.Get(sandboxID)
if status == nil {
podSandbox := c.store.Get(sandboxID)
if podSandbox == nil {
return sandbox.ExitStatus{}, fmt.Errorf("failed to get exit channel. %q", sandboxID)
}
exitStatus, exitedAt, err := c.waitSandboxExit(ctx, sandboxID, status.Waiter)
return sandbox.ExitStatus{
ExitStatus: exitStatus,
ExitedAt: exitedAt,
}, err
}
func (c *Controller) waitSandboxExit(ctx context.Context, id string, exitCh <-chan containerd.ExitStatus) (exitStatus uint32, exitedAt time.Time, err error) {
exitStatus = unknownExitCode
exitedAt = time.Now()
select {
case exitRes := <-exitCh:
log.G(ctx).Debugf("received sandbox exit %+v", exitRes)
exitStatus, exitedAt, err = exitRes.Result()
exit, err := podSandbox.Wait(ctx)
if err != nil {
log.G(ctx).WithError(err).Errorf("failed to get task exit status for %q", id)
return sandbox.ExitStatus{}, fmt.Errorf("failed to wait pod sandbox, %w", err)
}
return sandbox.ExitStatus{
ExitStatus: exit.ExitCode(),
ExitedAt: exit.ExitTime(),
}, err
}
func (c *Controller) waitSandboxExit(ctx context.Context, p *types.PodSandbox, exitCh <-chan containerd.ExitStatus) (exitStatus uint32, exitedAt time.Time, err error) {
select {
case e := <-exitCh:
exitStatus, exitedAt, err = e.Result()
if err != nil {
log.G(ctx).WithError(err).Errorf("failed to get task exit status for %q", p.ID)
exitStatus = unknownExitCode
exitedAt = time.Now()
}
err = func() error {
dctx := ctrdutil.NamespacedContext()
dctx, dcancel := context.WithTimeout(dctx, handleEventTimeout)
defer dcancel()
sb, err := c.sandboxStore.Get(id)
if err == nil {
if err := handleSandboxExit(dctx, sb, &eventtypes.TaskExit{ExitStatus: exitStatus, ExitedAt: protobuf.ToTimestamp(exitedAt)}); err != nil {
return err
event := &eventtypes.TaskExit{ExitStatus: exitStatus, ExitedAt: protobuf.ToTimestamp(exitedAt)}
if cleanErr := handleSandboxTaskExit(dctx, p, event); cleanErr != nil {
c.cri.BackOffEvent(p.ID, e)
}
return nil
} else if !errdefs.IsNotFound(err) {
return fmt.Errorf("failed to get sandbox %s: %w", id, err)
}
return nil
}()
if err != nil {
log.G(ctx).WithError(err).Errorf("failed to handle sandbox TaskExit %s", id)
// Don't backoff, the caller is responsible for.
return
}
case <-ctx.Done():
return exitStatus, exitedAt, ctx.Err()
return unknownExitCode, time.Now(), ctx.Err()
}
return
}
// handleSandboxExit handles TaskExit event for sandbox.
// TODO https://github.com/containerd/containerd/issues/7548
func handleSandboxExit(ctx context.Context, sb sandboxstore.Sandbox, e *eventtypes.TaskExit) error {
// handleSandboxTaskExit handles TaskExit event for sandbox.
func handleSandboxTaskExit(ctx context.Context, sb *types.PodSandbox, e *eventtypes.TaskExit) error {
// No stream attached to sandbox container.
task, err := sb.Container.Task(ctx, nil)
if err != nil {
@ -212,17 +191,7 @@ func handleSandboxExit(ctx context.Context, sb sandboxstore.Sandbox, e *eventtyp
if !errdefs.IsNotFound(err) {
return fmt.Errorf("failed to stop sandbox: %w", err)
}
// Move on to make sure container status is updated.
}
}
sb.Status.Update(func(status sandboxstore.Status) (sandboxstore.Status, error) {
status.State = sandboxstore.StateNotReady
status.Pid = 0
status.ExitStatus = e.ExitStatus
status.ExitedAt = e.ExitedAt.AsTime()
return status, nil
})
// Using channel to propagate the information of sandbox stop
sb.Stop()
return nil
}

43
pkg/cri/server/podsandbox/controller_test.go
View File

@ -21,11 +21,13 @@ import (
"testing"
"time"
"github.com/stretchr/testify/assert"
containerd "github.com/containerd/containerd/v2/client"
criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
"github.com/containerd/containerd/v2/pkg/cri/store/label"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ostesting "github.com/containerd/containerd/v2/pkg/os/testing"
"github.com/stretchr/testify/assert"
)
const (
@ -48,11 +50,10 @@ var testConfig = criconfig.Config{
// newControllerService creates a fake criService for test.
func newControllerService() *Controller {
labels := label.NewStore()
return &Controller{
config: testConfig,
os: ostesting.NewFakeOS(),
sandboxStore: sandboxstore.NewStore(labels),
store: NewStore(),
}
}
@ -60,20 +61,14 @@ func Test_Status(t *testing.T) {
sandboxID, pid, exitStatus := "1", uint32(1), uint32(0)
createdAt, exitedAt := time.Now(), time.Now()
controller := newControllerService()
status := sandboxstore.Status{
sb := types.NewPodSandbox(sandboxID, sandboxstore.Status{
State: sandboxstore.StateReady,
Pid: pid,
CreatedAt: createdAt,
ExitStatus: exitStatus,
ExitedAt: exitedAt,
State: sandboxstore.StateReady,
}
sb := sandboxstore.Sandbox{
Metadata: sandboxstore.Metadata{
ID: sandboxID,
},
Status: sandboxstore.StoreStatus(status),
}
err := controller.sandboxStore.Add(sb)
})
sb.Metadata = sandboxstore.Metadata{ID: sandboxID}
err := controller.store.Save(sb)
if err != nil {
t.Fatal(err)
}
@ -82,6 +77,20 @@ func Test_Status(t *testing.T) {
t.Fatal(err)
}
assert.Equal(t, s.Pid, pid)
assert.Equal(t, s.ExitedAt, exitedAt)
assert.Equal(t, s.CreatedAt, createdAt)
assert.Equal(t, s.State, sandboxstore.StateReady.String())
sb.Exit(*containerd.NewExitStatus(exitStatus, exitedAt, nil))
exit, err := controller.Wait(context.Background(), sandboxID)
if err != nil {
t.Fatal(err)
}
assert.Equal(t, exit.ExitStatus, exitStatus)
assert.Equal(t, exit.ExitedAt, exitedAt)
s, err = controller.Status(context.Background(), sandboxID, false)
if err != nil {
t.Fatal(err)
}
assert.Equal(t, s.State, sandboxstore.StateNotReady.String())
}

33
pkg/cri/server/podsandbox/helpers.go
View File

@ -23,6 +23,12 @@ import (
"path/filepath"
"time"
"github.com/containerd/log"
"github.com/containerd/typeurl/v2"
docker "github.com/distribution/reference"
imagedigest "github.com/opencontainers/go-digest"
runtimespec "github.com/opencontainers/runtime-spec/specs-go"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/containers"
clabels "github.com/containerd/containerd/v2/labels"
@ -30,12 +36,8 @@ import (
criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
crilabels "github.com/containerd/containerd/v2/pkg/cri/labels"
imagestore "github.com/containerd/containerd/v2/pkg/cri/store/image"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
"github.com/containerd/log"
docker "github.com/distribution/reference"
runtimespec "github.com/opencontainers/runtime-spec/specs-go"
imagedigest "github.com/opencontainers/go-digest"
)
const (
@ -196,3 +198,24 @@ func (c *Controller) runtimeSnapshotter(ctx context.Context, ociRuntime criconfi
log.G(ctx).Debugf("Set snapshotter for runtime %s to %s", ociRuntime.Type, ociRuntime.Snapshotter)
return ociRuntime.Snapshotter
}
func getMetadata(ctx context.Context, container containerd.Container) (*sandboxstore.Metadata, error) {
// Load sandbox metadata.
exts, err := container.Extensions(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get sandbox container extensions: %w", err)
}
ext, ok := exts[crilabels.SandboxMetadataExtension]
if !ok {
return nil, fmt.Errorf("metadata extension %q not found", crilabels.SandboxMetadataExtension)
}
data, err := typeurl.UnmarshalAny(ext)
if err != nil {
return nil, fmt.Errorf("failed to unmarshal metadata extension %q: %w", ext, err)
}
meta, ok := data.(*sandboxstore.Metadata)
if !ok {
return nil, fmt.Errorf("failed to convert the extension to sandbox metadata")
}
return meta, nil
}

82
pkg/cri/server/podsandbox/recover.go
View File

@ -22,16 +22,16 @@ import (
goruntime "runtime"
"time"
"github.com/containerd/containerd/v2/pkg/netns"
"github.com/containerd/typeurl/v2"
"github.com/containerd/log"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/errdefs"
crilabels "github.com/containerd/containerd/v2/pkg/cri/labels"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
"github.com/containerd/log"
"github.com/containerd/containerd/v2/pkg/netns"
sandbox2 "github.com/containerd/containerd/v2/sandbox"
)
// loadContainerTimeout is the default timeout for loading a container/sandbox.
@ -51,36 +51,29 @@ func (c *Controller) RecoverContainer(ctx context.Context, cntr containerd.Conta
ctx, cancel := context.WithTimeout(ctx, loadContainerTimeout)
defer cancel()
var sandbox sandboxstore.Sandbox
// Load sandbox metadata.
exts, err := cntr.Extensions(ctx)
meta, err := getMetadata(ctx, cntr)
if err != nil {
return sandbox, fmt.Errorf("failed to get sandbox container extensions: %w", err)
return sandbox, err
}
ext, ok := exts[crilabels.SandboxMetadataExtension]
if !ok {
return sandbox, fmt.Errorf("metadata extension %q not found", crilabels.SandboxMetadataExtension)
}
data, err := typeurl.UnmarshalAny(ext)
if err != nil {
return sandbox, fmt.Errorf("failed to unmarshal metadata extension %q: %w", ext, err)
}
meta := data.(*sandboxstore.Metadata)
s, err := func() (sandboxstore.Status, error) {
status := sandboxstore.Status{
State: sandboxstore.StateUnknown,
}
// Load sandbox created timestamp.
info, err := cntr.Info(ctx)
if err != nil {
return status, fmt.Errorf("failed to get sandbox container info: %w", err)
return sandbox, fmt.Errorf("failed to get sandbox container info: %w", err)
}
s, ch, err := func() (sandboxstore.Status, <-chan containerd.ExitStatus, error) {
status := sandboxstore.Status{
State: sandboxstore.StateUnknown,
}
var channel <-chan containerd.ExitStatus
status.CreatedAt = info.CreatedAt
// Load sandbox state.
t, err := cntr.Task(ctx, nil)
if err != nil && !errdefs.IsNotFound(err) {
return status, fmt.Errorf("failed to load task: %w", err)
return status, channel, fmt.Errorf("failed to load task: %w", err)
}
var taskStatus containerd.Status
var notFound bool
@ -93,7 +86,7 @@ func (c *Controller) RecoverContainer(ctx context.Context, cntr containerd.Conta
if err != nil {
// It's still possible that task is deleted during this window.
if !errdefs.IsNotFound(err) {
return status, fmt.Errorf("failed to get task status: %w", err)
return status, channel, fmt.Errorf("failed to get task status: %w", err)
}
notFound = true
}
@ -103,37 +96,48 @@ func (c *Controller) RecoverContainer(ctx context.Context, cntr containerd.Conta
status.State = sandboxstore.StateNotReady
} else {
if taskStatus.Status == containerd.Running {
// Wait for the task for sandbox monitor.
// wait is a long running background request, no timeout needed.
exitCh, err := t.Wait(ctrdutil.NamespacedContext())
if err != nil {
if !errdefs.IsNotFound(err) {
return status, fmt.Errorf("failed to wait for task: %w", err)
}
status.State = sandboxstore.StateNotReady
} else {
// Task is running, set sandbox state as READY.
status.State = sandboxstore.StateReady
status.Pid = t.Pid()
go func() {
c.waitSandboxExit(context.Background(), meta.ID, exitCh)
}()
exitCh, err := t.Wait(ctrdutil.NamespacedContext())
if err != nil {
return status, channel, fmt.Errorf("failed to wait for sandbox container task: %w", err)
}
channel = exitCh
} else {
// Task is not running. Delete the task and set sandbox state as NOTREADY.
if _, err := t.Delete(ctx, containerd.WithProcessKill); err != nil && !errdefs.IsNotFound(err) {
return status, fmt.Errorf("failed to delete task: %w", err)
return status, channel, fmt.Errorf("failed to delete task: %w", err)
}
status.State = sandboxstore.StateNotReady
}
}
return status, nil
return status, channel, nil
}()
if err != nil {
log.G(ctx).WithError(err).Errorf("Failed to load sandbox status for %q", cntr.ID())
}
// save it to cache in the podsandbox controller
podSandbox := types.NewPodSandbox(cntr.ID(), s)
podSandbox.Container = cntr
if meta != nil {
podSandbox.Metadata = *meta
}
podSandbox.Runtime = sandbox2.RuntimeOpts{
Name: info.Runtime.Name,
Options: info.Runtime.Options,
}
if ch != nil {
go func() {
code, exitTime, err := c.waitSandboxExit(ctrdutil.NamespacedContext(), podSandbox, ch)
podSandbox.Exit(*containerd.NewExitStatus(code, exitTime, err))
}()
}
if err := c.store.Save(podSandbox); err != nil {
return sandbox, fmt.Errorf("failed to save pod sandbox container in mem store: %w", err)
}
sandbox = sandboxstore.NewSandbox(*meta, s)
sandbox.Container = cntr

9
pkg/cri/server/podsandbox/sandbox_delete.go
View File

@ -27,11 +27,8 @@ import (
)
func (c *Controller) Shutdown(ctx context.Context, sandboxID string) error {
sandbox, err := c.sandboxStore.Get(sandboxID)
if err != nil {
if !errdefs.IsNotFound(err) {
return fmt.Errorf("an error occurred when try to find sandbox %q: %w", sandboxID, err)
}
sandbox := c.store.Get(sandboxID)
if sandbox == nil {
// Do not return error if the id doesn't exist.
log.G(ctx).Tracef("Sandbox controller Delete called for sandbox %q that does not exist", sandboxID)
return nil
@ -62,6 +59,8 @@ func (c *Controller) Shutdown(ctx context.Context, sandboxID string) error {
}
}
c.store.Remove(sandboxID)
return nil
}

39
pkg/cri/server/podsandbox/sandbox_run.go
View File

@ -34,6 +34,7 @@ import (
"github.com/containerd/containerd/v2/errdefs"
crilabels "github.com/containerd/containerd/v2/pkg/cri/labels"
customopts "github.com/containerd/containerd/v2/pkg/cri/opts"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
imagestore "github.com/containerd/containerd/v2/pkg/cri/store/image"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
@ -62,16 +63,11 @@ func (c *Controller) Start(ctx context.Context, id string) (cin sandbox.Controll
retErr = errors.Join(retErr, CleanupErr{cleanupErr})
}
}()
sandboxInfo, err := c.client.SandboxStore().Get(ctx, id)
if err != nil {
return cin, fmt.Errorf("unable to find sandbox with id %q: %w", id, err)
}
var metadata sandboxstore.Metadata
if err := sandboxInfo.GetExtension(MetadataKey, &metadata); err != nil {
return cin, fmt.Errorf("failed to get sandbox %q metadata: %w", id, err)
podSandbox := c.store.Get(id)
if podSandbox == nil {
return cin, fmt.Errorf("unable to find pod sandbox with id %q: %w", id, errdefs.ErrNotFound)
}
metadata := podSandbox.Metadata
var (
config = metadata.Config
@ -147,13 +143,14 @@ func (c *Controller) Start(ctx context.Context, id string) (cin sandbox.Controll
containerd.WithSpec(spec, specOpts...),
containerd.WithContainerLabels(sandboxLabels),
containerd.WithContainerExtension(crilabels.SandboxMetadataExtension, &metadata),
containerd.WithRuntime(ociRuntime.Type, sandboxInfo.Runtime.Options),
containerd.WithRuntime(ociRuntime.Type, podSandbox.Runtime.Options),
}
container, err := c.client.NewContainer(ctx, id, opts...)
if err != nil {
return cin, fmt.Errorf("failed to create containerd container: %w", err)
}
podSandbox.Container = container
defer func() {
if retErr != nil && cleanupErr == nil {
deferCtx, deferCancel := ctrdutil.DeferContext()
@ -161,6 +158,7 @@ func (c *Controller) Start(ctx context.Context, id string) (cin sandbox.Controll
if cleanupErr = container.Delete(deferCtx, containerd.WithSnapshotCleanup); cleanupErr != nil {
log.G(ctx).WithError(cleanupErr).Errorf("Failed to delete containerd container %q", id)
}
podSandbox.Container = nil
}
}()
@ -213,6 +211,7 @@ func (c *Controller) Start(ctx context.Context, id string) (cin sandbox.Controll
if err != nil {
return cin, fmt.Errorf("failed to get sandbox container info: %w", err)
}
podSandbox.CreatedAt = info.CreatedAt
// Create sandbox task in containerd.
log.G(ctx).Tracef("Create sandbox container (id=%q, name=%q).", id, metadata.Name)
@ -238,13 +237,13 @@ func (c *Controller) Start(ctx context.Context, id string) (cin sandbox.Controll
}
}
}()
podSandbox.Pid = task.Pid()
// wait is a long running background request, no timeout needed.
exitCh, err := task.Wait(ctrdutil.NamespacedContext())
if err != nil {
return cin, fmt.Errorf("failed to wait for sandbox container task: %w", err)
}
c.store.Save(id, exitCh)
nric, err := nri.New()
if err != nil {
@ -263,18 +262,30 @@ func (c *Controller) Start(ctx context.Context, id string) (cin sandbox.Controll
if err := task.Start(ctx); err != nil {
return cin, fmt.Errorf("failed to start sandbox container task %q: %w", id, err)
}
podSandbox.State = sandboxstore.StateReady
cin.SandboxID = id
cin.Pid = task.Pid()
cin.CreatedAt = info.CreatedAt
cin.Labels = labels
go func() {
code, exitTime, err := c.waitSandboxExit(ctrdutil.NamespacedContext(), podSandbox, exitCh)
podSandbox.Exit(*containerd.NewExitStatus(code, exitTime, err))
}()
return
}
func (c *Controller) Create(ctx context.Context, _info sandbox.Sandbox, _ ...sandbox.CreateOpt) error {
// Not used by pod-sandbox implementation as there is no need to split pause containers logic.
return nil
func (c *Controller) Create(_ctx context.Context, info sandbox.Sandbox, opts ...sandbox.CreateOpt) error {
metadata := sandboxstore.Metadata{}
if err := info.GetExtension(MetadataKey, &metadata); err != nil {
return fmt.Errorf("failed to get sandbox %q metadata: %w", info.ID, err)
}
podSandbox := types.NewPodSandbox(info.ID, sandboxstore.Status{State: sandboxstore.StateUnknown})
podSandbox.Metadata = metadata
podSandbox.Runtime = info.Runtime
return c.store.Save(podSandbox)
}
func (c *Controller) ensureImageExists(ctx context.Context, ref string, config *runtime.PodSandboxConfig) (*imagestore.Image, error) {

74
pkg/cri/server/podsandbox/sandbox_status.go
View File

@ -21,57 +21,32 @@ import (
"encoding/json"
"fmt"
"github.com/containerd/typeurl/v2"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/containers"
"github.com/containerd/containerd/v2/errdefs"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
"github.com/containerd/containerd/v2/pkg/cri/server/base"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
"github.com/containerd/containerd/v2/sandbox"
"github.com/containerd/go-cni"
"github.com/containerd/typeurl/v2"
runtimespec "github.com/opencontainers/runtime-spec/specs-go"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
)
// SandboxInfo is extra information for sandbox.
// TODO (mikebrow): discuss predefining constants structures for some or all of these field names in CRI
type SandboxInfo struct {
Pid uint32 `json:"pid"`
Status string `json:"processStatus"`
NetNSClosed bool `json:"netNamespaceClosed"`
Image string `json:"image"`
SnapshotKey string `json:"snapshotKey"`
Snapshotter string `json:"snapshotter"`
// Note: a new field `RuntimeHandler` has been added into the CRI PodSandboxStatus struct, and
// should be set. This `RuntimeHandler` field will be deprecated after containerd 1.3 (tracked
// in https://github.com/containerd/cri/issues/1064).
RuntimeHandler string `json:"runtimeHandler"` // see the Note above
RuntimeType string `json:"runtimeType"`
RuntimeOptions interface{} `json:"runtimeOptions"`
Config *runtime.PodSandboxConfig `json:"config"`
// Note: RuntimeSpec may not be populated if the sandbox has not been fully created.
RuntimeSpec *runtimespec.Spec `json:"runtimeSpec"`
CNIResult *cni.Result `json:"cniResult"`
Metadata *sandboxstore.Metadata `json:"sandboxMetadata"`
}
func (c *Controller) Status(ctx context.Context, sandboxID string, verbose bool) (sandbox.ControllerStatus, error) {
sb, err := c.sandboxStore.Get(sandboxID)
if err != nil {
return sandbox.ControllerStatus{}, fmt.Errorf("an error occurred while trying to find sandbox %q: %w",
sandboxID, err)
sb := c.store.Get(sandboxID)
if sb == nil {
return sandbox.ControllerStatus{}, fmt.Errorf("unable to find sandbox %q: %w", sandboxID, errdefs.ErrNotFound)
}
status := sb.Status.Get()
cstatus := sandbox.ControllerStatus{
SandboxID: sandboxID,
Pid: status.Pid,
State: status.State.String(),
CreatedAt: status.CreatedAt,
Pid: sb.Pid,
State: sb.State.String(),
CreatedAt: sb.CreatedAt,
Extra: nil,
}
if !status.ExitedAt.IsZero() {
cstatus.ExitedAt = status.ExitedAt
exitStatus := sb.GetExitStatus()
if exitStatus != nil {
cstatus.ExitedAt = exitStatus.ExitTime()
}
if verbose {
@ -87,15 +62,16 @@ func (c *Controller) Status(ctx context.Context, sandboxID string, verbose bool)
}
// toCRISandboxInfo converts internal container object information to CRI sandbox status response info map.
func toCRISandboxInfo(ctx context.Context, sandbox sandboxstore.Sandbox) (map[string]string, error) {
si := &SandboxInfo{
Pid: sandbox.Status.Get().Pid,
Config: sandbox.Config,
RuntimeHandler: sandbox.RuntimeHandler,
CNIResult: sandbox.CNIResult,
func toCRISandboxInfo(ctx context.Context, sb *types.PodSandbox) (map[string]string, error) {
si := &base.SandboxInfo{
Pid: sb.Pid,
Config: sb.Metadata.Config,
RuntimeHandler: sb.Metadata.RuntimeHandler,
CNIResult: sb.Metadata.CNIResult,
Metadata: &sb.Metadata,
}
if container := sandbox.Container; container != nil {
if container := sb.Container; container != nil {
task, err := container.Task(ctx, nil)
if err != nil && !errdefs.IsNotFound(err) {
return nil, fmt.Errorf("failed to get sandbox container task: %w", err)
@ -145,18 +121,16 @@ func toCRISandboxInfo(ctx context.Context, sandbox sandboxstore.Sandbox) (map[st
// status which does not exist in containerd.
si.Status = "deleted"
}
if sandbox.NetNS != nil {
netns := getNetNS(&sb.Metadata)
if netns != nil {
// Add network closed information if sandbox is not using host network.
closed, err := sandbox.NetNS.Closed()
closed, err := netns.Closed()
if err != nil {
return nil, fmt.Errorf("failed to check network namespace closed: %w", err)
}
si.NetNSClosed = closed
}
si.Metadata = &sandbox.Metadata
infoBytes, err := json.Marshal(si)
if err != nil {
return nil, fmt.Errorf("failed to marshal info %v: %w", si, err)

90
pkg/cri/server/podsandbox/sandbox_stop.go
View File

@ -22,52 +22,57 @@ import (
"syscall"
"time"
"github.com/containerd/log"
eventtypes "github.com/containerd/containerd/v2/api/events"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/errdefs"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
ctrdutil "github.com/containerd/containerd/v2/pkg/cri/util"
"github.com/containerd/containerd/v2/protobuf"
"github.com/containerd/containerd/v2/sandbox"
"github.com/containerd/log"
)
func (c *Controller) Stop(ctx context.Context, sandboxID string, _ ...sandbox.StopOpt) error {
sandbox, err := c.sandboxStore.Get(sandboxID)
podSandbox := c.store.Get(sandboxID)
if podSandbox == nil {
return errdefs.ErrNotFound
}
if podSandbox.Container == nil {
return nil
}
meta, err := getMetadata(ctx, podSandbox.Container)
if err != nil {
return fmt.Errorf("an error occurred when try to find sandbox %q: %w",
sandboxID, err)
return err
}
if err := c.cleanupSandboxFiles(sandboxID, sandbox.Config); err != nil {
return fmt.Errorf("failed to cleanup sandbox files: %w", err)
}
// TODO: The Controller maintains its own Status instead of CRI's sandboxStore.
// Only stop sandbox container when it's running or unknown.
state := sandbox.Status.Get().State
if (state == sandboxstore.StateReady || state == sandboxstore.StateUnknown) && sandbox.Container != nil {
if err := c.stopSandboxContainer(ctx, sandbox); err != nil {
state := podSandbox.State
if state == sandboxstore.StateReady || state == sandboxstore.StateUnknown {
if err := c.stopSandboxContainer(ctx, podSandbox); err != nil {
return fmt.Errorf("failed to stop sandbox container %q in %q state: %w", sandboxID, state, err)
}
}
if err := c.cleanupSandboxFiles(sandboxID, meta.Config); err != nil {
return fmt.Errorf("failed to cleanup sandbox files: %w", err)
}
return nil
}
// stopSandboxContainer kills the sandbox container.
// `task.Delete` is not called here because it will be called when
// the event monitor handles the `TaskExit` event.
func (c *Controller) stopSandboxContainer(ctx context.Context, sandbox sandboxstore.Sandbox) error {
id := sandbox.ID
container := sandbox.Container
state := sandbox.Status.Get().State
func (c *Controller) stopSandboxContainer(ctx context.Context, podSandbox *types.PodSandbox) error {
id := podSandbox.ID
container := podSandbox.Container
state := podSandbox.State
task, err := container.Task(ctx, nil)
if err != nil {
if !errdefs.IsNotFound(err) {
return fmt.Errorf("failed to get sandbox container: %w", err)
return fmt.Errorf("failed to get pod sandbox container: %w", err)
}
// Don't return for unknown state, some cleanup needs to be done.
if state == sandboxstore.StateUnknown {
return cleanupUnknownSandbox(ctx, id, sandbox)
return cleanupUnknownSandbox(ctx, id, podSandbox)
}
return nil
}
@ -75,7 +80,7 @@ func (c *Controller) stopSandboxContainer(ctx context.Context, sandbox sandboxst
// Handle unknown state.
// The cleanup logic is the same with container unknown state.
if state == sandboxstore.StateUnknown {
// Start an exit handler for containers in unknown state.
// Start an exit handler for sandbox container in unknown state.
waitCtx, waitCancel := context.WithCancel(ctrdutil.NamespacedContext())
defer waitCancel()
exitCh, err := task.Wait(waitCtx)
@ -83,23 +88,20 @@ func (c *Controller) stopSandboxContainer(ctx context.Context, sandbox sandboxst
if !errdefs.IsNotFound(err) {
return fmt.Errorf("failed to wait for task: %w", err)
}
return cleanupUnknownSandbox(ctx, id, sandbox)
return cleanupUnknownSandbox(ctx, id, podSandbox)
}
exitCtx, exitCancel := context.WithCancel(context.Background())
stopCh := make(chan struct{})
go func() {
defer close(stopCh)
exitStatus, exitedAt, err := c.waitSandboxExit(exitCtx, id, exitCh)
if err != nil && err != context.Canceled && err != context.DeadlineExceeded {
e := &eventtypes.SandboxExit{
SandboxID: id,
ExitStatus: exitStatus,
ExitedAt: protobuf.ToTimestamp(exitedAt),
}
log.G(ctx).WithError(err).Errorf("Failed to wait sandbox exit %+v", e)
// TODO: how to backoff
c.cri.BackOffEvent(id, e)
exitStatus, exitedAt, err := c.waitSandboxExit(exitCtx, podSandbox, exitCh)
if err != context.Canceled && err != context.DeadlineExceeded {
// The error of context.Canceled or context.DeadlineExceeded indicates the task.Wait is not finished,
// so we can not set the exit status of the pod sandbox.
podSandbox.Exit(*containerd.NewExitStatus(exitStatus, exitedAt, err))
} else {
log.G(ctx).WithError(err).Errorf("Failed to wait pod sandbox exit %+v", err)
}
}()
defer func() {
@ -111,27 +113,17 @@ func (c *Controller) stopSandboxContainer(ctx context.Context, sandbox sandboxst
}()
}
// Kill the sandbox container.
// Kill the pod sandbox container.
if err = task.Kill(ctx, syscall.SIGKILL); err != nil && !errdefs.IsNotFound(err) {
return fmt.Errorf("failed to kill sandbox container: %w", err)
return fmt.Errorf("failed to kill pod sandbox container: %w", err)
}
return c.waitSandboxStop(ctx, sandbox)
}
// waitSandboxStop waits for sandbox to be stopped until context is cancelled or
// the context deadline is exceeded.
func (c *Controller) waitSandboxStop(ctx context.Context, sandbox sandboxstore.Sandbox) error {
select {
case <-ctx.Done():
return fmt.Errorf("wait sandbox container %q: %w", sandbox.ID, ctx.Err())
case <-sandbox.Stopped():
return nil
}
_, err = podSandbox.Wait(ctx)
return err
}
// cleanupUnknownSandbox cleanup stopped sandbox in unknown state.
func cleanupUnknownSandbox(ctx context.Context, id string, sandbox sandboxstore.Sandbox) error {
// Reuse handleSandboxExit to do the cleanup.
return handleSandboxExit(ctx, sandbox, &eventtypes.TaskExit{ExitStatus: unknownExitCode, ExitedAt: protobuf.ToTimestamp(time.Now())})
func cleanupUnknownSandbox(ctx context.Context, id string, sandbox *types.PodSandbox) error {
// Reuse handleSandboxTaskExit to do the cleanup.
return handleSandboxTaskExit(ctx, sandbox, &eventtypes.TaskExit{ExitStatus: unknownExitCode, ExitedAt: protobuf.ToTimestamp(time.Now())})
}

37
pkg/cri/server/podsandbox/store.go
View File

@ -17,33 +17,40 @@
package podsandbox
import (
"fmt"
"sync"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/pkg/cri/server/podsandbox/types"
)
type Status struct {
Waiter <-chan containerd.ExitStatus
}
type Store struct {
sync.Map
m sync.Map
}
func NewStore() *Store {
return &Store{}
}
func (s *Store) Save(id string, exitCh <-chan containerd.ExitStatus) {
s.Store(id, &Status{Waiter: exitCh})
func (s *Store) Save(p *types.PodSandbox) error {
if p == nil {
return fmt.Errorf("pod sandbox should not be nil")
}
func (s *Store) Get(id string) *Status {
i, ok := s.LoadAndDelete(id)
if !ok {
// not exist
s.m.Store(p.ID, p)
return nil
}
// Only save *Status
return i.(*Status)
func (s *Store) Get(id string) *types.PodSandbox {
i, ok := s.m.Load(id)
if !ok {
return nil
}
return i.(*types.PodSandbox)
}
func (s *Store) Remove(id string) *types.PodSandbox {
i, ok := s.m.LoadAndDelete(id)
if !ok {
return nil
}
return i.(*types.PodSandbox)
}

83
pkg/cri/server/podsandbox/types/podsandbox.go Normal file
View File

@ -0,0 +1,83 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package types
import (
"context"
"sync"
"time"
containerd "github.com/containerd/containerd/v2/client"
"github.com/containerd/containerd/v2/pkg/cri/store"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
"github.com/containerd/containerd/v2/sandbox"
)
type PodSandbox struct {
mu sync.Mutex
ID string
Container containerd.Container
State sandboxstore.State
Metadata sandboxstore.Metadata
Runtime sandbox.RuntimeOpts
Pid uint32
CreatedAt time.Time
stopChan *store.StopCh
exitStatus *containerd.ExitStatus
}
func NewPodSandbox(id string, status sandboxstore.Status) *PodSandbox {
podSandbox := &PodSandbox{
ID: id,
Container: nil,
stopChan: store.NewStopCh(),
CreatedAt: status.CreatedAt,
State: status.State,
Pid: status.Pid,
}
if status.State == sandboxstore.StateNotReady {
podSandbox.Exit(*containerd.NewExitStatus(status.ExitStatus, status.ExitedAt, nil))
}
return podSandbox
}
func (p *PodSandbox) Exit(status containerd.ExitStatus) {
p.mu.Lock()
defer p.mu.Unlock()
p.exitStatus = &status
p.State = sandboxstore.StateNotReady
p.stopChan.Stop()
}
func (p *PodSandbox) Wait(ctx context.Context) (*containerd.ExitStatus, error) {
s := p.GetExitStatus()
if s != nil {
return s, nil
}
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-p.stopChan.Stopped():
return p.GetExitStatus(), nil
}
}
func (p *PodSandbox) GetExitStatus() *containerd.ExitStatus {
p.mu.Lock()
defer p.mu.Unlock()
return p.exitStatus
}

22
pkg/cri/server/restart.go
View File

@ -146,6 +146,28 @@ func (c *criService) recover(ctx context.Context) error {
}
}
for _, sb := range c.sandboxStore.List() {
sb := sb
status := sb.Status.Get()
if status.State == sandboxstore.StateNotReady {
continue
}
controller, err := c.sandboxService.SandboxController(sb.Config, sb.RuntimeHandler)
if err != nil {
log.G(ctx).WithError(err).Error("failed to get sandbox controller while waiting sandbox")
continue
}
exitCh := make(chan containerd.ExitStatus, 1)
go func() {
exit, err := controller.Wait(ctrdutil.NamespacedContext(), sb.ID)
if err != nil {
log.G(ctx).WithError(err).Error("failed to wait for sandbox exit")
exitCh <- *containerd.NewExitStatus(containerd.UnknownExitStatus, time.Time{}, err)
}
exitCh <- *containerd.NewExitStatus(exit.ExitStatus, exit.ExitedAt, nil)
}()
c.eventMonitor.startSandboxExitMonitor(context.Background(), sb.ID, exitCh)
}
// Recover all containers.
containers, err := c.client.Containers(ctx, filterLabel(crilabels.ContainerKindLabel, crilabels.ContainerKindContainer))
if err != nil {

5
pkg/cri/server/sandbox_run.go
View File

@ -27,6 +27,7 @@ import (
"time"
"github.com/containerd/go-cni"
"github.com/containerd/log"
"github.com/containerd/typeurl/v2"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
@ -39,7 +40,6 @@ import (
"github.com/containerd/containerd/v2/pkg/cri/util"
"github.com/containerd/containerd/v2/pkg/netns"
sb "github.com/containerd/containerd/v2/sandbox"
"github.com/containerd/log"
)
func init() {
@ -255,7 +255,6 @@ func (c *criService) RunPodSandbox(ctx context.Context, r *runtime.RunPodSandbox
ctrl, err := controller.Start(ctx, id)
if err != nil {
sandbox.Container, _ = c.client.LoadContainer(ctx, id)
var cerr podsandbox.CleanupErr
if errors.As(err, &cerr) {
cleanupErr = fmt.Errorf("failed to cleanup sandbox: %w", cerr)
@ -422,7 +421,7 @@ func (c *criService) RunPodSandbox(ctx context.Context, r *runtime.RunPodSandbox
//
// TaskOOM from containerd may come before sandbox is added to store,
// but we don't care about sandbox TaskOOM right now, so it is fine.
c.eventMonitor.startSandboxExitMonitor(context.Background(), id, ctrl.Pid, exitCh)
c.eventMonitor.startSandboxExitMonitor(context.Background(), id, exitCh)
// Send CONTAINER_STARTED event with ContainerId equal to SandboxId.
c.generateAndSendContainerEvent(ctx, id, id, runtime.ContainerEventType_CONTAINER_STARTED_EVENT)

72
pkg/cri/server/sandbox_status.go
View File

@ -18,14 +18,15 @@ package server
import (
"context"
"encoding/json"
"fmt"
"time"
"github.com/containerd/containerd/v2/errdefs"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
"github.com/containerd/go-cni"
runtimespec "github.com/opencontainers/runtime-spec/specs-go"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
"github.com/containerd/containerd/v2/errdefs"
"github.com/containerd/containerd/v2/pkg/cri/server/base"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
)
// PodSandboxStatus returns the status of the PodSandbox.
@ -64,6 +65,12 @@ func (c *criService) PodSandboxStatus(ctx context.Context, r *runtime.PodSandbox
return nil, fmt.Errorf("failed to query controller status: %w", err)
}
state = runtime.PodSandboxState_SANDBOX_NOTREADY.String()
if r.GetVerbose() {
info, err = toDeletedCRISandboxInfo(sandbox)
if err != nil {
return nil, err
}
}
} else {
state = cstatus.State
createdAt = cstatus.CreatedAt
@ -104,26 +111,6 @@ func (c *criService) getIPs(sandbox sandboxstore.Sandbox) (string, []string, err
return sandbox.IP, sandbox.AdditionalIPs, nil
}
// SandboxInfo is extra information for sandbox.
// TODO (mikebrow): discuss predefining constants structures for some or all of these field names in CRI
type SandboxInfo struct {
Pid uint32 `json:"pid"`
Status string `json:"processStatus"`
NetNSClosed bool `json:"netNamespaceClosed"`
Image string `json:"image"`
SnapshotKey string `json:"snapshotKey"`
Snapshotter string `json:"snapshotter"`
// Note: a new field `RuntimeHandler` has been added into the CRI PodSandboxStatus struct, and
// should be set. This `RuntimeHandler` field will be deprecated after containerd 1.3 (tracked
// in https://github.com/containerd/cri/issues/1064).
RuntimeHandler string `json:"runtimeHandler"` // see the Note above
RuntimeType string `json:"runtimeType"`
RuntimeOptions interface{} `json:"runtimeOptions"`
Config *runtime.PodSandboxConfig `json:"config"`
RuntimeSpec *runtimespec.Spec `json:"runtimeSpec"`
CNIResult *cni.Result `json:"cniResult"`
}
// toCRISandboxStatus converts sandbox metadata into CRI pod sandbox status.
func toCRISandboxStatus(meta sandboxstore.Metadata, status string, createdAt time.Time, ip string, additionalIPs []string) *runtime.PodSandboxStatus {
// Set sandbox state to NOTREADY by default.
@ -159,3 +146,40 @@ func toCRISandboxStatus(meta sandboxstore.Metadata, status string, createdAt tim
RuntimeHandler: meta.RuntimeHandler,
}
}
// toDeletedCRISandboxInfo converts cached sandbox to CRI sandbox status response info map.
// In most cases, controller.Status() with verbose=true should have SandboxInfo in the return,
// but if controller.Status() returns a NotFound error,
// we should fallback to get SandboxInfo from cached sandbox itself.
func toDeletedCRISandboxInfo(sandbox sandboxstore.Sandbox) (map[string]string, error) {
si := &base.SandboxInfo{
Pid: sandbox.Status.Get().Pid,
Config: sandbox.Config,
RuntimeHandler: sandbox.RuntimeHandler,
CNIResult: sandbox.CNIResult,
}
// If processStatus is empty, it means that the task is deleted. Apply "deleted"
// status which does not exist in containerd.
si.Status = "deleted"
if sandbox.NetNS != nil {
// Add network closed information if sandbox is not using host network.
closed, err := sandbox.NetNS.Closed()
if err != nil {
return nil, fmt.Errorf("failed to check network namespace closed: %w", err)
}
si.NetNSClosed = closed
}
si.Metadata = &sandbox.Metadata
infoBytes, err := json.Marshal(si)
if err != nil {
return nil, fmt.Errorf("failed to marshal info %v: %w", si, err)
}
return map[string]string{
"info": string(infoBytes),
}, nil
}

6
pkg/cri/server/sandbox_stop.go
View File

@ -25,6 +25,7 @@ import (
"github.com/containerd/log"
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
"github.com/containerd/containerd/v2/errdefs"
sandboxstore "github.com/containerd/containerd/v2/pkg/cri/store/sandbox"
)
@ -74,9 +75,14 @@ func (c *criService) stopPodSandbox(ctx context.Context, sandbox sandboxstore.Sa
}
if err := controller.Stop(ctx, id); err != nil {
// Log and ignore the error if controller already removed the sandbox
if errdefs.IsNotFound(err) {
log.G(ctx).Warnf("sandbox %q is not found when stopping it", id)
} else {
return fmt.Errorf("failed to stop sandbox %q: %w", id, err)
}
}
}
sandboxRuntimeStopTimer.WithValues(sandbox.RuntimeHandler).UpdateSince(stop)

2
pkg/cri/server/service.go
View File

@ -183,7 +183,7 @@ func NewCRIService(criBase *base.CRIBase, imageService imageService, client *con
}
podSandboxController := client.SandboxController(string(criconfig.ModePodSandbox)).(*podsandbox.Controller)
podSandboxController.Init(c.sandboxStore, c)
podSandboxController.Init(c)
c.nri = nri