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AWS Certified DevOps Engineer - Professional · AWS
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B. CodePipeline service role permissions If this were wrong, the pipeline might fail during execution—not fail to trigger entirely.
The answer appears to be A. AWS CodePipeline uses Amazon EventBridge (formerly CloudWatch Events) rules to detect changes in CodeCommit repositories. Therefore, the solution seems to be to check whether an EventBridge rule is configured to determine the reason for the failure. To be honest, I thought this was a rather dull problem.
Good question! I'm used CodePipeline in a particular lab in last year and now I checked the existence of eventbridge rules created by Codepipeline, impressive.