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feat: implement recorder and replayer #403

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@saza-ku saza-ku commented Jan 21, 2025

What type of PR is this?

/area simulator
/kind feature

What this PR does / why we need it:

This PR implements recorder and replayer.

recorder continuously saves events in an external cluster into a JSON file. replayer reproduces these events in the simulator cluster when the simulator starts by reading the JSON file.

Which issue(s) this PR fixes:

Fixes #395

Special notes for your reviewer:

/label tide/merge-method-squash

@k8s-ci-robot k8s-ci-robot added area/simulator Issues or PRs related to the simulator. kind/feature Categorizes issue or PR as related to a new feature. tide/merge-method-squash Denotes a PR that should be squashed by tide when it merges. sig/scheduling Categorizes an issue or PR as relevant to SIG Scheduling. labels Jan 21, 2025
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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: saza-ku
Once this PR has been reviewed and has the lgtm label, please assign sanposhiho for approval. For more information see the Code Review Process.

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@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jan 21, 2025
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Hi @saza-ku. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

@k8s-ci-robot k8s-ci-robot added needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels Jan 21, 2025
@saza-ku saza-ku marked this pull request as draft January 21, 2025 08:54
@k8s-ci-robot k8s-ci-robot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Jan 21, 2025
@saza-ku saza-ku marked this pull request as ready for review January 21, 2025 09:17
@k8s-ci-robot k8s-ci-robot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Jan 21, 2025
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Labels
area/simulator Issues or PRs related to the simulator. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/feature Categorizes issue or PR as related to a new feature. needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. sig/scheduling Categorizes an issue or PR as relevant to SIG Scheduling. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. tide/merge-method-squash Denotes a PR that should be squashed by tide when it merges.
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simulator: record events on prod cluster and replay them on a fake cluster any time
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