fix(alarms): allow Fn::Sub in alarm topic ARNs#702
Merged
zirkelc merged 1 commit intoserverless-operations:masterfrom Mar 23, 2026
Merged
fix(alarms): allow Fn::Sub in alarm topic ARNs#702zirkelc merged 1 commit intoserverless-operations:masterfrom
zirkelc merged 1 commit intoserverless-operations:masterfrom
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Extend the alarm ARN schema to accept Fn::Sub (both string and array forms) so users can reference pseudo-parameters like AWS::Region and AWS::AccountId without the serverless-pseudo-parameters plugin. Closes serverless-operations#417 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
Fn::Sub(both string and array forms) as a valid value fortopics.ok,topics.alarm, andtopics.insufficientData${AWS::Region}and${AWS::AccountId}without the deprecatedserverless-pseudo-parameterspluginTest plan
Fn::Substring form passes schema validation and is passed through toAlarmActionsin the CloudFormation outputCloses #417
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