Parallax Kubernetes Workshop

https://present.team-parallax.com/kubernetes-beginner#/

Useful commands

Default kubernetes editor

export KUBE_EDITOR="nano"

autocompletion

• bash: https://kubernetes.io/docs/tasks/tools/included/optional-kubectl-configs-bash-linux/
• zsh: https://kubernetes.io/docs/tasks/tools/included/optional-kubectl-configs-zsh/
• powershell: https://kubernetes.io/docs/tasks/tools/included/optional-kubectl-configs-pwsh/

Run debug pod

kubectl run debug -it --rm --image=digitalocean/doks-debug:latest -- bash

Scale deployment

kubectl scale deployment --replicas 2 k8s-workshop

Port forward

• from pods kubectl port-forward pods/k8s-workshop 3334:3333
• from service: kubectl port-forward svc/k8s-workshop-svc 3334:80

observe

• kubectl describe pod foo

remove sturdy pvs

kubectl get pv | grep Terminating | awk '{print $1}' | xargs kubectl delete pv --grace-period=0 --force

useful aliases

alias k='kubectl'
alias kd='kubectl describe'
alias kg='kubectl get'
alias ke='kubectl edit'
alias kt='kubectl top'
alias kcw='kubectl config use-context parallax-beginner-workshop'
function kns {
    kubectl config set-context --current --namespace="$1"
}