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KEP-2831: Instrumenting Kubelet for OpenTelemetry Tracing #2832

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merged 2 commits into from Feb 3, 2022

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sallyom
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@sallyom sallyom commented Jul 21, 2021

  • One-line PR description: Instrument kubelet to generate and export OpenTelemetry trace data.

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jul 21, 2021
@k8s-ci-robot k8s-ci-robot added kind/kep Categorizes KEP tracking issues and PRs modifying the KEP directory sig/instrumentation Categorizes an issue or PR as relevant to SIG Instrumentation. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Jul 21, 2021
@sallyom sallyom mentioned this pull request Jul 21, 2021
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@sallyom sallyom force-pushed the tracing-kubelet-kep branch 3 times, most recently from 6013bf0 to ed06666 Compare August 5, 2021 03:00
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@sallyom let me know when comments are addressed and you are ready for another round of review

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ehashman commented Sep 8, 2021

/sig node

@k8s-ci-robot k8s-ci-robot added the sig/node Categorizes an issue or PR as relevant to SIG Node. label Sep 8, 2021
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Did a quick pass, I don't think this will make it in time for 1.23.

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sallyom commented Sep 9, 2021

@ehashman @dashpole thanks for your reviews. bummer, this won't make 1.23 but i'll keep on this to push for merge and kubelet changes with 1.24

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First pass

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sallyom commented Oct 10, 2021

@dashpole @ehashman ptal, thanks

@ehashman ehashman added this to Needs Reviewer in SIG Node PR Triage Dec 6, 2021
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sallyom commented Jan 20, 2022

@ehashman ptal at the prod-readiness review for 1.24 freeze, thanks again :)

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PRR is nearly done, just a couple of small questions. Need node and @dashpole review as well :)

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/approve

for PRR. Leaving final LGTM to @dashpole

@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jan 26, 2022
owning-sig: sig-instrumentation
participating-sigs:
- sig-architecture
- sig-node
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SIG Node acked the KEP at the 2022-01-25 meeting.

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Once the comment about passthrough for trace context above is resolved, i'll lgtm

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Will be great if we can call out support for tracing volume attach+mount related operations between Kubelet and the in-tree volume plugins + CSI node plugins.

Would also love to know if tracing from the perspective of individual PVs/Volumes across Kubelet/Attach-Detach controller and PV controller exists or is called out somewhere.

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@sallyom sallyom force-pushed the tracing-kubelet-kep branch 2 times, most recently from 51938bc to 63f8691 Compare February 1, 2022 21:47
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the kep generally lgtm for sig-node.

defer to @dashpole for final review who has good understanding of kubelet as well.

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dashpole, derekwaynecarr, ehashman, sallyom

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Signed-off-by: Sally O'Malley <somalley@redhat.com>

Co-authored-by: husky-parul <parsingh@redhat.com>
Co-authored-by: David Ashpole <dashpole@google.com>
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dashpole commented Feb 3, 2022

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm Indicates that a PR is ready to be merged. label Feb 3, 2022
@k8s-ci-robot k8s-ci-robot merged commit 7e55759 into kubernetes:master Feb 3, 2022
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SIG Node PR Triage automation moved this from Needs Reviewer to Done Feb 3, 2022
@k8s-ci-robot k8s-ci-robot added this to the v1.24 milestone Feb 3, 2022
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approved Indicates a PR has been approved by an approver from all required OWNERS files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/kep Categorizes KEP tracking issues and PRs modifying the KEP directory lgtm Indicates that a PR is ready to be merged. sig/instrumentation Categorizes an issue or PR as relevant to SIG Instrumentation. sig/node Categorizes an issue or PR as relevant to SIG Node. size/L Denotes a PR that changes 100-499 lines, ignoring generated files.
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