Tail logs from all Kubernetes pods at once with podlogs.sh

Unfortunately you cannot tail and at the same time use selectors:

$ kubectl logs -l 'role=nodejs' --tail=2 -f 
error: only one of follow (-f) or selector (-l) is allowed
See 'kubectl logs -h' for help and examples.

However there are alternatives. Here is a how to tail logs from all Kubernetes pods at once using just one Plain Old Bash (POB) script.