My journey to Certified Kubernetes Administrator (CKA)

The Journey Is More Important Than the Destination.

• CKA is the most touching exam I have passed.

• The Journey Is More Important Than the Destination.

• Fastest practice skills are crutial.

• Have fun.

My tips

Use kubectl Cheat Sheet

Kubectl autocomplete – BASH

source <(kubectl completion bash) # setup autocomplete in bash into the current shell, bash-completion package should be installed first.
echo "source <(kubectl completion bash)" >> ~/.bashrc # add permanently

You can also use a shorthand alias for kubectl that also works with completion:

alias k=kubectl
complete -F __start_kubectl k

Kubectl apply 

kubectl apply -f ./my-manifest.yaml            # create resource(s)

Interacting with running Pods

# Run pod nginx and write its spec into a file called pod.yaml
kubectl run nginx --image=nginx --dry-run=client -o yaml > pod.yaml

#Better usage with $do
export do="–dry-run=client -o yaml"
kubectl run nginx --image=nginx $do > pod.yaml

Great Vim

vi ~/.vimrc
set ts=2 sw=2 expandtab ruler

Use tmux

• Okna v terminálu pomocí Tmux
• How to Use tmux on Linux

A Ctrl+B Cheat Sheet

Session Commands

• S: List sessions.

Window Commands

• C: Create a new window.
• N: Move to the next window.
• P: Move to the previous window.

Pane Commands

• %: Create a horizontal split.
• “: Create a vertical split.
• X: Close the current pane.