Question

A DevOps team builds a CodePipeline with a Source stage (CodeCommit), a Build stage (CodeBuild), and a Deploy stage (CodeDeploy to EC2). The Build stage's CodeBuild project defines an output artifact named 'BuildOutput' in its buildspec artifacts section. The Deploy stage's action fails immediately with an error indicating the input artifact cannot be found. The pipeline was authored using CloudFormation. What is the MOST likely cause?

Accepted Answer

The Deploy stage action's InputArtifacts references an artifact name that does not match the OutputArtifacts name declared on the Build stage action in the pipeline definition.

Answer

The buildspec artifacts section must set 'discard-paths: yes' or CodeDeploy cannot locate the appspec.yml file.

Answer

The CodeBuild service role lacks s3:GetObject permission on the artifact bucket, so the artifact was never produced.

Answer

CodeDeploy requires the artifact to be stored in ECR rather than the pipeline's S3 artifact store.