Kubeexec

Enables you to run commands in multiple k8s pods at once (via itermocil).
This is the same as running kubectl exec <pod> -c <container> <command> in each container.

Example:

$ kubeexec my-redis-cluster -c node redis-cli

.------------------.------------------.
| (0) redis cli    | (1) redis cli    |
|                  |                  |
|------------------|------------------|
| (2) redis cli    | (3) redis cli    |
|                  |                  |
.------------------.------------------.
| (4) redis cli    | (5) redis cli    |
|                  |                  |
'------------------'------------------'

Installation

Just download the kubeexec.rb file (or any of the releases) and you're good to go.

Homebrew

$ brew tap lucasrodcosta/kubeexec && brew install kubeexec

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
redis-cluster-aba8y    2/2       Running   0          1d
redis-cluster-gc4st    2/2       Running   0          1d
redis-cluster-m8acl    2/2       Running   0          6d
redis-cluster-s20d0    2/2       Running   0          1d
rails-v31-9pbpn        1/1       Running   0          1d
rails-v31-q74wg        1/1       Running   0          1d

To run the command /bin/sh in all pods starting with redis-cluster, just run the following:

$ kubeexec redis-cluster /bin/sh

It's very easy to specify a container to run the command:

$ kubeexec redis-cluster -c redis-node /bin/sh