fix: prevent refreshAliasesTask from reverting rotated aliases in aws_kms plugin#6805
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angabini wants to merge 1 commit intospiffe:mainfrom
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fix: prevent refreshAliasesTask from reverting rotated aliases in aws_kms plugin#6805angabini wants to merge 1 commit intospiffe:mainfrom
angabini wants to merge 1 commit intospiffe:mainfrom
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…_kms plugin Signed-off-by: angabini <494150+angabini@users.noreply.github.com>
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Pull Request check list
Affected functionality
aws_kmsKeyManager plugin — specifically therefreshAliasesTaskbackground task that periodically refreshes alias timestamps.Description of change
In multi-replica SPIRE server deployments sharing a
key_identifier_value,refreshAliasesTaskon non-leader replicas can revert a KMS alias to a stale cached key after the leader rotates it. If the old key is subsequently scheduled for deletion, the alias ends up pointing to a disabled key, causing all future server startups to crash withFailedPrecondition.This PR adds a
DescribeKeycheck inrefreshAliases()before callingUpdateAlias. If the alias's current target differs from the local cache (indicating a rotation by another replica), the refresh is skipped to avoid reverting the rotation.Which issue this PR fixes
fixes #6804