Tips and tricks

Copy a file in Linux console

cat >
# paste the content and use Ctrl-D

Enable ssh persistent session with Byobu

ssh k8s<ID>@<server-ip>
# F2: create new tab
# F3/F4: switch to left/right tab

If the session crashes, reconnect and launch byobu to recover it

Create a SSH Tunnel

ssh k8s<ID>@<server-ip> -L 808<ID>:localhost:808<ID> -N

With Putty

plink -ssh -L 8088:localhost:8088 -P 22 k8s<ID>@<server-ip>

CKA tips

Pre Setup

Once you’ve gained access to your terminal it might be wise to spend ~1 minute to setup your environment. You could set these:

alias k=kubectl   # will already be pre-configured

export do="--dry-run=client -o yaml"
# k get pod x $do

export now="--force --grace-period 0"
# k delete pod x $now


To make vim use 2 spaces for a tab edit ~/.vimrc to contain:

set tabstop=2
set expandtab
set shiftwidth=2