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katautils: run prestart hooks after starting VM

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So that we can pass the hypervisor pid to the hook instead of the
runtime process's.

Signed-off-by: Peng Tao <bergwolf@hyper.sh>
This commit is contained in:
Peng Tao 2023-01-03 09:03:39 +00:00
parent 1511587a9a
commit cb84b0fb02
2 changed files with 32 additions and 10 deletions
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30
src/runtime/pkg/katautils/create.go
View File

@ -162,6 +162,21 @@ func CreateSandbox(ctx context.Context, vci vc.VC, ociSpec specs.Spec, runtimeCo
ociSpec.Annotations["nerdctl/network-namespace"] = sandboxConfig.NetworkConfig.NetworkID
sandboxConfig.Annotations["nerdctl/network-namespace"] = ociSpec.Annotations["nerdctl/network-namespace"]
sandbox, err := vci.CreateSandbox(ctx, sandboxConfig)
if err != nil {
return nil, vc.Process{}, err
}
hid, err := sandbox.GetHypervisorPid()
if err != nil {
return nil, vc.Process{}, err
}
ctx = context.WithValue(ctx, "hypervisor-pid", hid)
sid := sandbox.ID()
kataUtilsLogger = kataUtilsLogger.WithField("sandbox", sid)
katatrace.AddTags(span, "sandbox_id", sid)
// Run pre-start OCI hooks, in the runtime namespace.
if err := PreStartHooks(ctx, ociSpec, containerID, bundlePath); err != nil {
return nil, vc.Process{}, err
@ -172,15 +187,6 @@ func CreateSandbox(ctx context.Context, vci vc.VC, ociSpec specs.Spec, runtimeCo
return nil, vc.Process{}, err
}
sandbox, err := vci.CreateSandbox(ctx, sandboxConfig)
if err != nil {
return nil, vc.Process{}, err
}
sid := sandbox.ID()
kataUtilsLogger = kataUtilsLogger.WithField("sandbox", sid)
katatrace.AddTags(span, "sandbox_id", sid)
containers := sandbox.GetAllContainers()
if len(containers) != 1 {
return nil, vc.Process{}, fmt.Errorf("BUG: Container list from sandbox is wrong, expecting only one container, found %d containers", len(containers))
@ -255,6 +261,12 @@ func CreateContainer(ctx context.Context, sandbox vc.VCSandbox, ociSpec specs.Sp
return vc.Process{}, err
}
hid, err := sandbox.GetHypervisorPid()
if err != nil {
return vc.Process{}, err
}
ctx = context.WithValue(ctx, HypervisorPidKey{}, hid)
// Run pre-start OCI hooks.
err = EnterNetNS(sandbox.GetNetNs(), func() error {
return PreStartHooks(ctx, ociSpec, containerID, bundlePath)

12
src/runtime/pkg/katautils/hook.go
View File

@ -28,6 +28,8 @@ var hookTracingTags = map[string]string{
"subsystem": "hook",
}
type HypervisorPidKey struct{}
// Logger returns a logrus logger appropriate for logging hook messages
func hookLogger() *logrus.Entry {
return kataUtilsLogger.WithField("subsystem", "hook")
@ -38,8 +40,16 @@ func runHook(ctx context.Context, spec specs.Spec, hook specs.Hook, cid, bundleP
defer span.End()
katatrace.AddTags(span, "path", hook.Path, "args", hook.Args)
pid, ok := ctx.Value(HypervisorPidKey{}).(int)
if !ok || pid == 0 {
hookLogger().Info("no hypervisor pid")
pid = syscallWrapper.Gettid()
}
hookLogger().Infof("hypervisor pid %v", pid)
state := specs.State{
Pid: syscallWrapper.Gettid(),
Pid: pid,
Bundle: bundlePath,
ID: cid,
Annotations: spec.Annotations,