[Dashboards] Fix readOnlyRootFilesystem by adding emptyDir for data dir#726
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faarshad wants to merge 1 commit intoopensearch-project:mainfrom
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[Dashboards] Fix readOnlyRootFilesystem by adding emptyDir for data dir#726faarshad wants to merge 1 commit intoopensearch-project:mainfrom
faarshad wants to merge 1 commit intoopensearch-project:mainfrom
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…lume for data directory When securityContext.readOnlyRootFilesystem is set to true, OpenSearch Dashboards fails to start because it cannot write the UUID file to /usr/share/opensearch-dashboards/data/uuid (EROFS error). This adds a conditional emptyDir volume mounted at /usr/share/opensearch-dashboards/data when readOnlyRootFilesystem is enabled, providing a writable directory for the UUID file. Resolves opensearch-project#368 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Signed-off-by: Fahad Arshad <26278466+faarshad@users.noreply.github.com>
faarshad
requested review from
DandyDeveloper,
TheAlgo,
gaiksaya,
peterzhuamazon and
prudhvigodithi
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Summary
securityContext.readOnlyRootFilesystem: trueis setemptyDirvolume mounted at/usr/share/opensearch-dashboards/dataso the UUID file can be writtenreadOnlyRootFilesystemis enabled — no change to default behaviorResolves #368
Changes
charts/opensearch-dashboards/templates/deployment.yaml— Added conditional emptyDir volume (dashboards-data) and volumeMount at/usr/share/opensearch-dashboards/datawhen.Values.securityContext.readOnlyRootFilesystemis truecharts/opensearch-dashboards/Chart.yaml— Bumped chart version from 3.4.0 to 3.5.0charts/opensearch-dashboards/CHANGELOG.md— Documented the fix under[Unreleased] > FixedTest plan
helm lintpasseshelm templatewithreadOnlyRootFilesystem=truerenders the emptyDir volume and mount correctlyhelm templatewithoutreadOnlyRootFilesystemdoes NOT include the extra volume (no regression)readOnlyRootFilesystem=trueConnectionError/getaddrinfo EBUSYerrors — Dashboards connects to OpenSearch successfully/usr/share/opensearch-dashboards/data/uuidReady 1/1with zero restartsreadOnlyRootFilesystem) — behavior unchanged, no extra volume added