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Implement kubeconfig rotation #48

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merged 40 commits into from
Nov 7, 2023
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@Disper Disper commented Sep 26, 2023

Description

Changes proposed in this pull request:

  • Periodic secret rotation implemented
  • Forced secret rotation implemented
  • Statuses set for operations

Related issue(s)
#10

@kyma-bot kyma-bot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Sep 26, 2023
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Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

@kyma-bot kyma-bot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Sep 26, 2023
@Disper Disper self-assigned this Sep 27, 2023
@Disper Disper marked this pull request as ready for review September 29, 2023 14:04
@Disper Disper requested a review from a team as a code owner September 29, 2023 14:04
@Disper Disper changed the title [WiP] Update GardenerCluster statuses Update GardenerCluster statuses Sep 29, 2023
@kyma-bot kyma-bot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Sep 29, 2023
@Disper Disper removed their assignment Sep 29, 2023
@koala7659 koala7659 requested a review from akgalwas October 17, 2023 07:49
@kyma-bot kyma-bot added size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. and removed size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Oct 20, 2023
@akgalwas akgalwas changed the title Update GardenerCluster statuses Implement kubeconfig rotation Oct 21, 2023
}
var clusterToUpdate imv1.GardenerCluster

err := controller.Client.Get(ctx, key, &clusterToUpdate)
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just a comment for myself - this prevents 409 error

now := time.Now()
alreadyValidFor := now.Sub(lastSyncTime)

return alreadyValidFor.Minutes() >= rotationPeriodRatio*rotationPeriod.Minutes()
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would it be possible to remove this rotationPeriodRatio parameter?

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without that, @akgalwas had a test case where instead after 36 minutes, rotation happened after ~72 minutes and if I recall correctly, for 12 minutes the kubeconfig was invalid.

return false
}

readyState := newGardenerCluster.Status.State == imv1.ReadyState
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@Disper Disper Oct 25, 2023

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Happened to fail for @akgalwas locally

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What should be taken into account during review:

  • Errors handling
  • Resilience: we must be sure that the controller is self healing
  • Unit tests should be reviewed
  • Unit test stability (it would be good to run it couple of times)
  • Force rotation scenario: there is update failure caused by the Kubebuilder cache

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LGTM

@kyma-bot kyma-bot added the lgtm Looks good to me! label Nov 7, 2023
@kyma-bot kyma-bot merged commit 59b1cb1 into kyma-project:main Nov 7, 2023
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@Disper Disper deleted the controller_states3 branch December 15, 2023 11:46
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4 participants