CodePipeline truncates folder names in output artifact S3 bucket

Question

When configuring CodeBuild direct to source from and output to an S3 bucket, it can retain its whole project name in the output folder.

But if it's CodePipeline, the pipeline name is truncated to *just 20 characters* for the folder. This is probelmatic as we can have multiple applications in the same system/environment with their own pipelines, with a naming convention that can result in pretty long names well beyond twenty; the truncation essentially reduces them to the same name.

Why is this the case and how can CodePipeline be configured to avoid this behaviour?

Accepted Answer

A workaround is to use a unique set of characters for the 20 characters of pipeline names. This is to separate prefixes (folders) for the artifacts that are coming from separate pipelines, in case multiple pipelines have the same first 20 characters. However, the use of artifacts should not be affected by the current limitation (truncation) as CodePipeline uses a hash to determine artifacts. Please see below.

> CodePipeline truncates artifact names, which can cause some bucket names to appear similar. Even though the artifact name appears to be truncated, CodePipeline maps to the artifact bucket in a way that is not affected by artifacts with truncated names. The pipeline can function normally. This is not an issue with the folder or artifacts. There is a 100-character limit to pipeline names. Although the artifact folder name might appear to be shortened, it is still unique for your pipeline.

- https://docs.aws.amazon.com/codepipeline/latest/userguide/welcome-introducing-artifacts.html

CodePipeline truncates folder names in output artifact S3 bucket

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