How do I get logs from all pods of a Kubernetes replication controller?

I've created a small bash script called kubetail that makes this possible. For example to tail all logs for pods named "app1" you can do:

kubetail app1

You can find the script here.

You can use labels

kubectl logs -l app=elasticsearch

And you'd probably want to specify --all-containers --ignore-errors in order to:

• Include logs from pods with multiple containers
• Continue to next pod on fatal error (e.g. logs could not be retrieved)