Migrate devicemanager to context logging (1/5) #132540

chuangw6 · 2025-06-25T21:37:08Z

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

migrate pkg/kubelet/cm/devicemanager to contextual logging

Which issue(s) this PR is related to:

#130069

Special notes for your reviewer:

This PR migrated:

pkg/kubelet/cm/devicemanager/plugin/v1beta1/client.go
pkg/kubelet/cm/devicemanager/plugin/v1beta1/handler.go
pkg/kubelet/cm/devicemanager/plugin/v1beta1/server.go
NewManagerImpl, Start and Stop in pkg/kubelet/cm/devicemanager/manager.go

Sorry for this PR's size. I fall down the rabbit hole of plumbing through context :<. I will migrate following files with smaller PRs:

pkg/kubelet/cm/devicemanager/manager.go
pkg/kubelet/cm/devicemanager/pod_devices.go
pkg/kubelet/cm/devicemanager/topology_hints.go
pkg/kubelet/cm/devicemanager/plugin/v1beta1/stub.go

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

linux-foundation-easycla · 2025-06-25T21:37:16Z

The committers listed above are authorized under a signed CLA.

✅ login: chuangw6 / name: Chuang Wang (40c6a0a)

k8s-ci-robot · 2025-06-25T21:37:17Z

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k8s-ci-robot · 2025-06-25T21:37:17Z

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k8s-ci-robot · 2025-06-25T21:37:18Z

Hi @chuangw6. Thanks for your PR.

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yujuhong · 2025-06-25T22:22:18Z

/ok-to-test

pkg/kubelet/cm/devicemanager/manager.go

chuangw6 · 2025-06-26T22:09:55Z

/retest

k8s-ci-robot · 2025-06-27T01:38:12Z

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: chuangw6
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ffromani

thanks for the PR! I'm generally very supportive of moving to contextual logging (and my own effort starved). I expect a somehow long tail of tuning and refinements after the initial plumbing lands, but by all means let's get the plumbing merged before!
Some comments inside

ffromani · 2025-06-27T06:47:45Z

pkg/kubelet/cm/devicemanager/plugin/v1beta1/client.go

+	Connect(ctx context.Context) error
+	Run(ctx context.Context)
+	Disconnect(ctx context.Context) error


not sure we can just the method signature of the interface, will check

pkg/kubelet/cm/devicemanager/types.go

pkg/kubelet/cm/dra/plugin/dra_plugin_manager.go

pkg/kubelet/pluginmanager/cache/types.go

ffromani · 2025-06-27T06:51:01Z

pkg/volume/csi/csi_plugin.go

-func (h *RegistrationHandler) ValidatePlugin(pluginName string, endpoint string, versions []string) error {
-	klog.Info(log("Trying to validate a new CSI Driver with name: %s endpoint: %s versions: %s",
-		pluginName, endpoint, strings.Join(versions, ",")))
+func (h *RegistrationHandler) ValidatePlugin(ctx context.Context, pluginName string, endpoint string, versions []string) error {


likewise, are updating all plugins in one go or just device manager?

My goal was to just update device manager, but to migrate pkg/kubelet/cm/devicemanager/plugin/v1beta1/handler.go, the PluginHandler interface in pkg/kubelet/pluginmanager/cache/types.go needs to be updated. Otherwise, type check will fail. This led to a series of cascading changes.

chuangw6 · 2025-06-30T21:40:46Z

nolint:errcheck

chuangw6 · 2025-06-30T21:41:17Z

/test pull-kubernetes-linter-hints

chuangw6 · 2025-06-30T21:50:57Z

/test pull-kubernetes-node-e2e-containerd

k8s-ci-robot · 2025-06-30T22:02:50Z

@chuangw6: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubernetes-linter-hints	`40c6a0a`	link	false	`/test pull-kubernetes-linter-hints`

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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ffromani · 2025-07-01T13:06:21Z

General note about migration to contextual logging. There are quite few areas where we can use or should use more contexts; that's fine. In general however just passing context around for the sake of using the logger instance (because this is only the legit use of the context in such cases) seems suboptimal.
Plus, we don't use WithName or WithValues a lot, which is the real place where the contextual logging really adds value.
In this case it seems awkward to me to do the FromContext/NewContext dance when we can "just" pass around the logger instance.
I guess we can do a sweeping change in general and then refine in the later versions once we gain more confidence and we learn better the usages of the logger.
TL;DR: I'm ok doing the change in waves (sweeping waves), this will be the first of quite a few.

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SergeyKanzhelev reviewed Jun 25, 2025

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pkg/kubelet/cm/devicemanager/manager.go Show resolved Hide resolved

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chuangw6 force-pushed the ctx-log branch 2 times, most recently from 2986644 to 36d6bfa Compare June 25, 2025 23:33

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chuangw6 force-pushed the ctx-log branch from 0b37033 to ec80dca Compare June 26, 2025 21:34

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chuangw6 force-pushed the ctx-log branch 4 times, most recently from 4eea21f to b32e789 Compare June 27, 2025 01:37

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chuangw6 force-pushed the ctx-log branch from b32e789 to cac6c34 Compare June 27, 2025 18:01

Migrate devicemanager to context logging

40c6a0a

chuangw6 force-pushed the ctx-log branch from cac6c34 to 40c6a0a Compare June 30, 2025 21:20

chuangw6 changed the title ~~(WIP) Migrate devicemanager to context logging (1/5)~~ Migrate devicemanager to context logging (1/5) Jun 30, 2025

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chuangw6 requested review from tallclair and ffromani June 30, 2025 21:28

Migrate devicemanager to context logging (1/5) #132540

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Migrate devicemanager to context logging (1/5) #132540

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