Hi @stevejr, thank you for taking the time to test our beta and report back!
Recently we fixed a bug that may be related to your issue: https://github.com/elastic/beats/pull/5133, will be out soon with filebeat 6.0.0-RC1. Anyway we can do some tests to confirm that's the case, so we discard any other possible issue:
Please run filebeat with this debugging flag: -d 'docker'
- Could you detail how you start the containers you are watching?
Could you try to run this and see if it get's correctly annotated?: docker run busybox echo hello world
Best regards