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cilium-cli: Fix container name in connectivity test logs#44076

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Feb 2, 2026
Merged

cilium-cli: Fix container name in connectivity test logs#44076
nebril merged 1 commit intomainfrom
pr/HadrienPatte/connectivity-check-log-container

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When running connectivity checks with cilium connectivity test, I noticed some errors where missing the container name:

🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-xzqfs to server on pod cilium-test-1/echo-same-node-6c77c74696-pfdl6: command failed (pod=cilium-test-1/client3-86cb9b6846-xzqfs, container=): command terminated with exit code 1: ;; communications error to 100.64.16.9#53: timed out
;; communications error to 100.64.16.9#53: timed out
;; communications error to 100.64.16.9#53: timed out
;; no servers could be reached

🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-xzqfs to server on pod cilium-test-1/echo-same-node-6c77c74696-pfdl6: command failed (pod=cilium-test-1/client3-86cb9b6846-xzqfs, container=): context deadline exceeded:
timeout reached waiting for lookup for localhost from pod cilium-test-1/client3-86cb9b6846-xzqfs to server on pod cilium-test-1/echo-same-node-6c77c74696-pfdl6 to succeed (last error: command failed (pod=cilium-test-1/client3-86cb9b6846-xzqfs, container=): context deadline exceeded)

This is because the container name printed in those error messages comes directly from the argument passed to ExecInPod/ExecInPodWithStderr. But in most cases today, we pass an empty string for the container name argument for those functions, which leads to the command being executed in the first container of the pod.

This PR updates ExecInPod calls to explicitely set the container name argument to the first container of the pod, which leads to that container name being properly propagated down to the error log in case of failure:

🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-4w6n4 to server on pod cilium-test-1/echo-same-node-6c77c74696-pn2vf: command failed (pod=cilium-test-1/client3-86cb9b6846-4w6n4, container=client3): command terminated with exit code 1: ;; communications error to 100.64.16.6#53: timed out
;; communications error to 100.64.16.6#53: timed out
;; communications error to 100.64.16.6#53: timed out
;; no servers could be reached

🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-4w6n4 to server on pod cilium-test-1/echo-same-node-6c77c74696-pn2vf: command failed (pod=cilium-test-1/client3-86cb9b6846-4w6n4, container=client3): context deadline exceeded:
timeout reached waiting for lookup for localhost from pod cilium-test-1/client3-86cb9b6846-4w6n4 to server on pod cilium-test-1/echo-same-node-6c77c74696-pn2vf to succeed (last error: command failed (pod=cilium-test-1/client3-86cb9b6846-4w6n4, container=client3): context deadline exceeded)

@maintainer-s-little-helper maintainer-s-little-helper bot added the dont-merge/needs-release-note-label The author needs to describe the release impact of these changes. label Jan 30, 2026
@github-actions github-actions bot added cilium-cli This PR contains changes related with cilium-cli cilium-cli-exclusive This PR only impacts cilium-cli binary labels Jan 30, 2026
When running connectivity checks with `cilium connectivity test`, I
noticed some errors where missing the container name:

```
🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-xzqfs to server on pod cilium-test-1/echo-same-node-6c77c74696-pfdl6: command failed (pod=cilium-test-1/client3-86cb9b6846-xzqfs, container=): command terminated with exit code 1: ;; communications error to 100.64.16.9#53: timed out
;; communications error to 100.64.16.9#53: timed out
;; communications error to 100.64.16.9#53: timed out
;; no servers could be reached

🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-xzqfs to server on pod cilium-test-1/echo-same-node-6c77c74696-pfdl6: command failed (pod=cilium-test-1/client3-86cb9b6846-xzqfs, container=): context deadline exceeded:
timeout reached waiting for lookup for localhost from pod cilium-test-1/client3-86cb9b6846-xzqfs to server on pod cilium-test-1/echo-same-node-6c77c74696-pfdl6 to succeed (last error: command failed (pod=cilium-test-1/client3-86cb9b6846-xzqfs, container=): context deadline exceeded)
```

This is because the container name printed in those error messages comes
directly from the argument passed to `ExecInPod`/`ExecInPodWithStderr`.
But in most cases today, we pass an empty string for the container name
argument for those functions, which leads to the command being executed
in the first container of the pod.

This PR updates `ExecInPod` calls to explicitly set the container name
argument to the first container of the pod, which leads to that
container name being properly propagated down to the error log in case
of failure:

```
🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-4w6n4 to server on pod cilium-test-1/echo-same-node-6c77c74696-pn2vf: command failed (pod=cilium-test-1/client3-86cb9b6846-4w6n4, container=client3): command terminated with exit code 1: ;; communications error to 100.64.16.6#53: timed out
;; communications error to 100.64.16.6#53: timed out
;; communications error to 100.64.16.6#53: timed out
;; no servers could be reached

🐛 [my-cluster] Error looking up localhost from pod cilium-test-1/client3-86cb9b6846-4w6n4 to server on pod cilium-test-1/echo-same-node-6c77c74696-pn2vf: command failed (pod=cilium-test-1/client3-86cb9b6846-4w6n4, container=client3): context deadline exceeded:
timeout reached waiting for lookup for localhost from pod cilium-test-1/client3-86cb9b6846-4w6n4 to server on pod cilium-test-1/echo-same-node-6c77c74696-pn2vf to succeed (last error: command failed (pod=cilium-test-1/client3-86cb9b6846-4w6n4, container=client3): context deadline exceeded)
```

Signed-off-by: Hadrien Patte <hadrien.patte@datadoghq.com>
@HadrienPatte HadrienPatte force-pushed the pr/HadrienPatte/connectivity-check-log-container branch from 21ad269 to b6df03b Compare January 30, 2026 15:55
@HadrienPatte
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/test

@HadrienPatte HadrienPatte marked this pull request as ready for review January 30, 2026 16:16
@HadrienPatte HadrienPatte requested a review from a team as a code owner January 30, 2026 16:16
@HadrienPatte HadrienPatte requested a review from nebril January 30, 2026 16:16
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/ci-l3-l4

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LGTM!

@nebril nebril added the release-note/misc This PR makes changes that have no direct user impact. label Feb 2, 2026
@maintainer-s-little-helper maintainer-s-little-helper bot removed the dont-merge/needs-release-note-label The author needs to describe the release impact of these changes. label Feb 2, 2026
@nebril nebril added this pull request to the merge queue Feb 2, 2026
Merged via the queue into main with commit e1fff35 Feb 2, 2026
474 of 476 checks passed
@nebril nebril deleted the pr/HadrienPatte/connectivity-check-log-container branch February 2, 2026 11:17
@maintainer-s-little-helper maintainer-s-little-helper bot added ready-to-merge This PR has passed all tests and received consensus from code owners to merge. labels Feb 2, 2026
lambchop4prez added a commit to lambchop4prez/network that referenced this pull request Feb 26, 2026
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[aqua:cilium/cilium-cli](https://redirect.github.com/cilium/cilium-cli)
| patch | `0.19.0` → `0.19.2` |

---

### Release Notes

<details>
<summary>cilium/cilium-cli (aqua:cilium/cilium-cli)</summary>

###
[`v0.19.2`](https://redirect.github.com/cilium/cilium-cli/compare/v0.19.1...v0.19.2)

[Compare
Source](https://redirect.github.com/cilium/cilium-cli/compare/v0.19.1...v0.19.2)

###
[`v0.19.1`](https://redirect.github.com/cilium/cilium-cli/releases/tag/v0.19.1)

[Compare
Source](https://redirect.github.com/cilium/cilium-cli/compare/v0.19.0...v0.19.1)

## Summary of Changes

**Minor Changes:**

- cli: clustermesh: use ca bundle to connect clusters
([cilium/cilium#42833](https://redirect.github.com/cilium/cilium/issues/42833),
[@&#8203;MrFreezeex](https://redirect.github.com/MrFreezeex))

**Bugfixes:**

- cilium-cli: Fix NodePort deployment check in dual-stack clusters
([cilium/cilium#43888](https://redirect.github.com/cilium/cilium/issues/43888),
[@&#8203;gandro](https://redirect.github.com/gandro))
- Fix GKE conformance test NodePort timeouts by skipping unreachable
external IP validation on GKE
([cilium/cilium#44014](https://redirect.github.com/cilium/cilium/issues/44014),
[@&#8203;pillai-ashwin](https://redirect.github.com/pillai-ashwin))

**CI Changes:**

- cli: Relax warning exclusion for "unable to find key in local cache"
([cilium/cilium#44149](https://redirect.github.com/cilium/cilium/issues/44149),
[@&#8203;brb](https://redirect.github.com/brb))

**Misc Changes:**

- chore(deps): update all-dependencies (main)
([cilium/cilium#43700](https://redirect.github.com/cilium/cilium/issues/43700),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update all-dependencies (main)
([cilium/cilium#43824](https://redirect.github.com/cilium/cilium/issues/43824),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update all-dependencies (main)
([cilium/cilium#43965](https://redirect.github.com/cilium/cilium/issues/43965),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update all-dependencies (main)
([cilium/cilium#44090](https://redirect.github.com/cilium/cilium/issues/44090),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update all-dependencies (main)
([cilium/cilium#44235](https://redirect.github.com/cilium/cilium/issues/44235),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update base-images (main)
([cilium/cilium#43827](https://redirect.github.com/cilium/cilium/issues/43827),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update base-images (main)
([cilium/cilium#43969](https://redirect.github.com/cilium/cilium/issues/43969),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- chore(deps): update base-images (main)
([cilium/cilium#44239](https://redirect.github.com/cilium/cilium/issues/44239),
[@&#8203;cilium-renovate](https://redirect.github.com/cilium-renovate)\[bot])
- cilium-cli: Fix container name in connectivity test logs
([cilium/cilium#44076](https://redirect.github.com/cilium/cilium/issues/44076),
[@&#8203;HadrienPatte](https://redirect.github.com/HadrienPatte))
- docs: fix typos in comments
([cilium/cilium#43821](https://redirect.github.com/cilium/cilium/issues/43821),
[@&#8203;NAM-MAN](https://redirect.github.com/NAM-MAN))
- feat(cilium-cli): Add -r(estart) parameter to cilium upgrade
([cilium/cilium#43722](https://redirect.github.com/cilium/cilium/issues/43722),
[@&#8203;alagoutte](https://redirect.github.com/alagoutte))
- Introduce end-to-end tests for Cilium's ZTunnel integration.
([cilium/cilium#43166](https://redirect.github.com/cilium/cilium/issues/43166),
[@&#8203;ldelossa](https://redirect.github.com/ldelossa))
- Replace Index{,Byte} with Cut,Contains
([cilium/cilium#43708](https://redirect.github.com/cilium/cilium/issues/43708),
[@&#8203;joestringer](https://redirect.github.com/joestringer))
- sysdump: Use label selectors for Hubble UI/Relay deployment collection
([cilium/cilium#44227](https://redirect.github.com/cilium/cilium/issues/44227),
[@&#8203;darox](https://redirect.github.com/darox))
- chore(deps): update dependency cilium/cilium to v1.18.6 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3168](https://redirect.github.com/cilium/cilium-cli/pull/3168)
- Update stable release to v0.19.0 by
[@&#8203;tklauser](https://redirect.github.com/tklauser) in
[#&#8203;3169](https://redirect.github.com/cilium/cilium-cli/pull/3169)
- chore(deps): update go to v1.25.6 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3170](https://redirect.github.com/cilium/cilium-cli/pull/3170)
- chore(deps): update docker.io/library/golang:1.25.6 docker digest to
[`ce63a16`](https://redirect.github.com/cilium/cilium-cli/commit/ce63a16)
by [@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3172](https://redirect.github.com/cilium/cilium-cli/pull/3172)
- chore(deps): update actions/checkout action to v6.0.2 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3171](https://redirect.github.com/cilium/cilium-cli/pull/3171)
- ci: Harden the image build process by
[@&#8203;ferozsalam](https://redirect.github.com/ferozsalam) in
[#&#8203;3174](https://redirect.github.com/cilium/cilium-cli/pull/3174)
- chore(deps): update gcr.io/distroless/static:latest docker digest to
[`972618c`](https://redirect.github.com/cilium/cilium-cli/commit/972618c)
by [@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3176](https://redirect.github.com/cilium/cilium-cli/pull/3176)
- chore(deps): update all github action dependencies by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3175](https://redirect.github.com/cilium/cilium-cli/pull/3175)
- chore(deps): update go to v1.25.7 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3178](https://redirect.github.com/cilium/cilium-cli/pull/3178)
- chore(deps): update golangci/golangci-lint docker tag to v2.9.0 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3179](https://redirect.github.com/cilium/cilium-cli/pull/3179)
- chore(deps): update go to v1.26.0 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3181](https://redirect.github.com/cilium/cilium-cli/pull/3181)
- chore(deps): update docker/build-push-action action to v6.19.0 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3180](https://redirect.github.com/cilium/cilium-cli/pull/3180)
- chore(deps): update docker/build-push-action action to v6.19.2 by
[@&#8203;renovate](https://redirect.github.com/renovate)\[bot] in
[#&#8203;3183](https://redirect.github.com/cilium/cilium-cli/pull/3183)
- Prepare for v0.19.1 release by
[@&#8203;tklauser](https://redirect.github.com/tklauser) in
[#&#8203;3184](https://redirect.github.com/cilium/cilium-cli/pull/3184)

#### New Contributors

- [@&#8203;ferozsalam](https://redirect.github.com/ferozsalam) made
their first contribution in
[#&#8203;3174](https://redirect.github.com/cilium/cilium-cli/pull/3174)

**Full Changelog**:
<cilium/cilium-cli@v0.19.0...v0.19.1>

</details>

---

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🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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---

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