in_kubernetes_events: Efficiently stream kubernetes events via watch #8351
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edsiper
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@edsiper - just force pushed a new version of this. I still have this PR draft mode because it was branched off of 2 other PRs: #8316 & #8323. I was assuming it would be easier to review those each individually and then I'd rebase this one with a smaller set of changes to review, but if you'd prefer to just do them all in one change PR review/merge, I can move this pr to ready to review. |
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Potentially breaking change as it now requires the rbac used by fluent-bit to have 'watch'. Uses a k8s watch instead of http api polling to stream k8s events from the kube api server Signed-off-by: ryanohnemus <ryanohnemus@gmail.com>
Signed-off-by: ryanohnemus <ryanohnemus@gmail.com>
Signed-off-by: ryanohnemus <ryanohnemus@gmail.com>
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We probably should update docs as well, particularly with the RBAC change. Could you link a docs PR @ryanohnemus ? Do we have any int tests for this btw? |
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fluent/fluent-bit#8351 Signed-off-by: ryanohnemus <ryanohnemus@gmail.com>
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@patrick-stephens added doc via fluent/fluent-bit-docs#1396 No int tests, but I added unit tests for the plugin in this PR. |
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* in_kubernetes_events: add k8s permission details fluent/fluent-bit#8351 Signed-off-by: ryanohnemus <ryanohnemus@gmail.com> * Update pipeline/inputs/kubernetes-events.md Co-authored-by: Adam Locke <adam.locke@chronosphere.io> Signed-off-by: Ryan Ohnemus <ryanohnemus@users.noreply.github.com> * Update pipeline/inputs/kubernetes-events.md Co-authored-by: Adam Locke <adam.locke@chronosphere.io> Signed-off-by: Ryan Ohnemus <ryanohnemus@users.noreply.github.com> * Add hard return to break section Signed-off-by: Adam Locke <adam.locke@chronosphere.io> --------- Signed-off-by: ryanohnemus <ryanohnemus@gmail.com> Signed-off-by: Ryan Ohnemus <ryanohnemus@users.noreply.github.com> Signed-off-by: Adam Locke <adam.locke@chronosphere.io> Co-authored-by: Adam Locke <adam.locke@chronosphere.io>
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Change
in_kubernetes_eventsplugin to watch kubernetes events after requesting the event list. Instead of polling for the full event list every 500ms (default), an initial full events list is requested and then is a watch is requested. The watch will create an efficient http chunked stream that will push events as they are added, modified, or deleted from the cluster. The interval_sec and interval_nsec plugin config options now act as a reconnect timer if the watch stream is ended, instead of timer to re-poll the k8s cluster.Potentially Breaking: this will require the kubernetes role used by fluent-bit to have
watchpermission in addition to the currentlistandgetpermissions.Fixes #8315
Leaving in draft as this is dependent on both #8316 & #8323, will rebase and move out of draft after those are reviewed/merged.
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[N/A]in the box, if an item is not applicable to your change.Testing
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If this is a change to packaging of containers or native binaries then please confirm it works for all targets.
ok-package-testlabel to test for all targets (requires maintainer to do).Documentation
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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.