The README for the s3-plugin mentions support for pipeline, but:
- there are no examples
- the snippet generator mentioned does not actually have the option to generate S3 publish steps
- Google came up empty when looking for examples of pipeline use with the S3 plugin
So it doesn't look like its implemented.
Because I've moved all of our builds to run through the Github integration with the automatic Jenkinsfile detection, I can't use any plugin that has no support for Jenkins file and I'd really like to be able to publish to S3.