fix: handle stale BeforeHookCreation resources as progressing #461
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Codecov ReportBase: 55.38% // Head: 55.59% // Increases project coverage by
Additional details and impacted files@@ Coverage Diff @@
## master #461 +/- ##
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+ Coverage 55.38% 55.59% +0.21%
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Files 41 41
Lines 4478 4493 +15
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+ Hits 2480 2498 +18
+ Misses 1807 1804 -3
Partials 191 191
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- fixes argoproj#446 - closes argoproj/argo-cd#10579 - original issue argoproj/argo-cd#10077 Signed-off-by: Krzysztof Nazarewski <3494992+nazarewk@users.noreply.github.com>
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Signed-off-by: Krzysztof Nazarewski <3494992+nazarewk@users.noreply.github.com>
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managed to fully test expected flow, PR is ready for review |
crenshaw-dev
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Thanks a lot @nazarewk for this work!
Please make sure to create a PR in Argo CD repo pointing to this change so we can validate that all integration and e2e tests are passing. It would be great to make sure that there is an existing integration or e2e test that validates this scenario. If such test is not yet implemented it would be awesome to add it in Argo CD test suite.
TLDR;
DELETEevent during handling ofBeforeHookCreationdeletion policy can be delayed whileetcdis running garbage collection:1. at the same time "finished" hook is present in the cache,
2.
gitops-enginedoes not verify creation timestamp ofBeforeHookCreationobjects against start time of sync operation,3.
gitops-engineis unaware (old) object should be purged from cache and happily proceeds to next Sync WaveThe PR fixes this specific failure mode with minimal changes to the code.
The change is impossible to reproduce as
etcd's GC usually does not take long enough to trigger the issue. At the same time it is very difficult to debug.the EKS cluster I observed issues at had tens of thousands objects with >1k objects churned every few minutes and still GC triggered the issue only few times a week
fixes #446
closes argoproj/argo-cd#10579
original issue argoproj/argo-cd#10077