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iptables operation add timeout and retry exponentially #3092

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@phuhung273 phuhung273 commented Oct 26, 2024

What type of PR is this?

  • improvement

Which issue does this PR fix?:

Close #2945

What does this PR do / Why do we need it?:

  • iptables operation wait forever without any informative output

Testing done on this change:

Will this PR introduce any new dependencies?:

Yes. retry util library: github.com/cenkalti/backoff/v4

Will this break upgrades or downgrades? Has updating a running cluster been tested?:
No

Does this change require updates to the CNI daemonset config files to work?:

No

Does this PR introduce any user-facing change?:

No

iptables operation add timeout and retry exponentially

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

@phuhung273 phuhung273 requested a review from a team as a code owner October 26, 2024 09:46
@phuhung273 phuhung273 marked this pull request as draft October 26, 2024 09:47
@phuhung273
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@yash97 may I ask for your help on how to unit test this implementation

@phuhung273
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@yash97 I found out how to test. But the PR is quite big now, understand you dont prefer that

@phuhung273 phuhung273 marked this pull request as ready for review October 27, 2024 02:51
@phuhung273 phuhung273 changed the title [WIP] iptables operation add timeout and retry exponentially iptables operation add timeout and retry exponentially Oct 27, 2024
@phuhung273
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@yash97 want to know your thought on this PR

@orsenthil
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@phuhung273 - I will review the PR and let you know.

@phuhung273
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Thanks so much @orsenthil

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VPC CNI stuck in crash loop without insights
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