Fix: unexpected log when pod is shutting down

[hzxuzhonghu]

What type of PR is this?

What this PR does / why we need it:

For #1381

eliminate these logs during pod shutdown

time="2025-05-09T01:32:09Z" level=info msg="default/ws-server: enable Kmesh manage" subsys=manage_controller
time="2025-05-09T01:32:09Z" level=info msg="add annotation for pod default/ws-server" subsys=manage_controller
time="2025-05-09T01:32:09Z" level=info msg="default/ws-client: enable Kmesh manage" subsys=manage_controller
time="2025-05-09T01:32:09Z" level=info msg="add annotation for pod default/ws-client" subsys=manage_controller

// this is because the connection is established before kmesh starts
time="2025-05-09T01:32:39Z" level=info msg="[PROBE] ERR: on close: bpf_sk_storage_get failed\n" subsys=ebpf

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[Copilot]

Pull Request Overview

This PR removes unnecessary logging during pod shutdown and adjusts the behavior of BPF probe functions to suppress expected errors.

• In the controller, a pod deletion check is added in handlePodUpdate and log level in enableKmeshManage is changed to Debug.
• In the probe code, the construct_orig_dst_info API is updated to require an external storage parameter and the error logging in observe_on_close/observe_on_data is suppressed.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
pkg/controller/manage/manage_controller.go	Added pod deletion check and changed log level to Debug to avoid noisy logs.
bpf/kmesh/probes/tcp_probe.h	Modified the construct_orig_dst_info signature to require a storage parameter.
bpf/kmesh/probes/probe.h	Suppressed error logging in sock storage retrieval scenarios with clarifying comments.

Comments suppressed due to low confidence (1)

bpf/kmesh/probes/tcp_probe.h:112

• The construct_orig_dst_info function signature now requires an external storage parameter. Ensure that all callers pass a valid non-null storage object to prevent potential runtime issues.

static inline void construct_orig_dst_info(struct bpf_sock *sk, struct sock_storage_data *storage, struct tcp_probe_info *info)

[codecov]

Codecov Report

Attention: Patch coverage is 20.00000% with 8 lines in your changes missing coverage. Please review.

Project coverage is 46.21%. Comparing base (77a6ac8) to head (3dc6d64).
Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/controller/manage/manage_controller.go	20.00%	6 Missing and 2 partials ⚠️

Files with missing lines	Coverage Δ
pkg/controller/manage/manage_controller.go	52.81% <20.00%> (-1.04%)	⬇️

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[LiZhenCheng9527]

/lgtm
/approve

[kmesh-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: LiZhenCheng9527

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[kmesh-bot]

In response to a cherrypick label: new pull request created: #1385