K8SPSMDB-1572: Add revisionHistoryLimit option to PerconaServerMongoDB CRD#2219
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myJamong wants to merge 3 commits intopercona:mainfrom
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K8SPSMDB-1572: Add revisionHistoryLimit option to PerconaServerMongoDB CRD#2219myJamong wants to merge 3 commits intopercona:mainfrom
myJamong wants to merge 3 commits intopercona:mainfrom
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This allows users to control the number of ControllerRevision objects retained for StatefulSets managed by the operator. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
myJamong
requested review from
bogdanjeler-ev,
egegunes,
eleo007,
gkech,
hors,
jvpasinatto,
mayankshah1607,
nmarukovich,
oksana-grishchenko,
pooknull and
valmiranogueira
as code owners
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egegunes
changed the title
egegunes
requested changes
Feb 3, 2026
deploy/bundle.yaml
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| @@ -1,3 +1,4 @@ | |||
| # Warning: 'patchesStrategicMerge' is deprecated. Please use 'patches' instead. Run 'kustomize edit fix' to update your Kustomization automatically. | |||
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not sure if we should have this warning in CRD
pkg/psmdb/mongos.go
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| UpdateStrategy: updateStrategy, | ||
| Template: template, | ||
| UpdateStrategy: updateStrategy, | ||
| RevisionHistoryLimit: cr.Spec.RevisionHistoryLimit, |
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we need to add this field with version check to prevent unexpected restarts after operator upgrade. you can check cr.CompareVersion for examples. this will go into v1.23, so we need to check for "1.23.0"
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I added some changes and added a cr.CompareVersion logic to check for 1.23.0.
Thanks for your guide.
commit: b910275
pkg/psmdb/statefulset.go
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| }, | ||
| }, | ||
| UpdateStrategy: updateStrategy, | ||
| RevisionHistoryLimit: cr.Spec.RevisionHistoryLimit, |
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we need cr version check here as well
egegunes
approved these changes
Feb 4, 2026
Author
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Hi @egegunes |
Contributor
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@myJamong no, they are not related to your changes. |
Collaborator
commit: 2808255 |
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This allows users to control the number of ControllerRevision objects retained for StatefulSets managed by the operator.
CHANGE DESCRIPTION
Problem:
When StatefulSets are updated, Kubernetes creates ControllerRevision objects to track revision history. Without a limit, these objects accumulate indefinitely, cluttering the cluster
and making it harder to manage resources.
Cause:
The operator does not expose the
revisionHistoryLimitfield from StatefulSet spec, so users cannot control how many ControllerRevision objects are retained.Solution:
Add
revisionHistoryLimitoption to PerconaServerMongoDB CRD spec. This value is propagated to all StatefulSets (replsets and mongos) managed by the operator, allowing users to limitthe number of retained ControllerRevision objects.
CHECKLIST
Jira
Needs Doc) and QA (Needs QA)?Tests
compare/*-oc.yml)?Config/Logging/Testability