Kubetail

This script allows you to aggregate (tail/follow) logs from multiple pods into one stream. This is the same as running "kubectl logs -f " but for multiple pods.

Usage

First find the names of all your pods:

$ kubectl get pods

This will return a list looking something like this:

NAME                   READY     STATUS    RESTARTS   AGE
app1-v1-aba8y          1/1       Running   0          1d
app1-v1-gc4st          1/1       Running   0          1d
app1-v1-m8acl  		   1/1       Running   0          6d
app1-v1-s20d0  		   1/1       Running   0          1d
app2-v31-9pbpn         1/1       Running   0          1d
app2-v31-q74wg         1/1       Running   0          1d
my-demo-v5-0fa8o       1/1       Running   0          3h
my-demo-v5-yhren       1/1       Running   0          2h

To tail the logs of the two "app2" pods in one go simply do:

$ kubetail app2

If the pods are using multiple containers specify the container like this:

$ kubetail app2 -c container1

Supply -h for help and addtional options:

$ kubetail -h

Known issues

When you press "ctrl+c" to end the log session you may end up with errors like this:

error: write /dev/stdout: broken pipe

I'm not quite sure why this happens, pull requests are welcome :)

See also: http://code.haleby.se/2015/11/13/tail-logs-from-multiple-pods-simultaneously-in-kubernetes/