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✨ util: Warning handler that discards messages that match a regular expression #11179

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merged 4 commits into from
Sep 24, 2024

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dlipovetsky
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What this PR does / why we need it:
As described in #10932 and #11065, users see API server warnings from run clusterctl move, and in controller logs. We want to offer users the option of hiding these warnings. The warning handler available in client-go allows us to hide all warnings, but we want to hide only specific warnings.

This PR implements a handler that we can customize to our needs. Because Cluster API providers are affected by this issue, we define the handler in a new util/apiwarnings package that can be used by providers, which are typically consumers of the cluster-api go module.

Future PRs will use this handler to hide warnings in the clusterctl move command, and controller logs.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

/area util

@k8s-ci-robot k8s-ci-robot added area/util Issues or PRs related to utils cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels Sep 12, 2024
@k8s-ci-robot k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Sep 12, 2024
util/apiwarnings/handler.go Outdated Show resolved Hide resolved
util/apiwarnings/handler_test.go Show resolved Hide resolved
…gular expression

Remove deduplication. As a side-effect, simplify the implementation.
util/apiwarnings/handler_test.go Show resolved Hide resolved
util/apiwarnings/handler.go Outdated Show resolved Hide resolved
util/apiwarnings/handler_test.go Show resolved Hide resolved
…gular expression

Fix the test of an uninitialized handler, so that the logger is exercised.
…gular expression

Split conflated test case into two independent test cases
@sbueringer sbueringer added the tide/merge-method-squash Denotes a PR that should be squashed by tide when it merges. label Sep 24, 2024
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Thank you very much!

/lgtm
/approve

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Sep 24, 2024
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LGTM label has been added.

Git tree hash: 678c3eb16b75827463f6f4f0f032c53b89abd46e

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbueringer

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Sep 24, 2024
@k8s-ci-robot k8s-ci-robot merged commit 7ee7e20 into kubernetes-sigs:main Sep 24, 2024
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@k8s-ci-robot k8s-ci-robot added this to the v1.9 milestone Sep 24, 2024
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3 participants