Alias

key	value
`k`	kubectl
`rs`	replicaset
`ns`	namepsaces
`svc`	service
`cm`	configmap
`sa`	serviceaccounts
`pv`	persistentvolumes
`pvc`	persistentvolumeclaims
`sts`	statefulset
`ds`	daemonset
`ep`	endpoints

Env. setup

# add following scripts to ~/.bashrc

alias kubectl="k3s kubectl"
source /etc/profile.d/bash_completion.sh
source <(kubectl completion bash)
alias k=kubectl
complete -F __start_kubectl k
alias crictl='k3s crictl'
eval "$(starship init bash)"
export KUBE_EDITOR="vim"
export PS1="\\h $ "
export PAGER=less

Tips

cheat sheet
tmux commands

pre-setup

alias k=kubectl                         # will already be pre-configured
export do="--dry-run=client -o yaml"    # k create deploy nginx --image=nginx $do
export now="--force --grace-period 0"   # k delete pod x $now

Frequently Used Commands

commands	definition
`k get all`	view deployments of app
`k get pods -A`	view all namespaces
`k get pods -o wide`	view pods details
`k logs <pod-name>`	view pod logs
`k config view`	view kubectl configs
`k config use-context <context name>`	change context of cluster
**`ps -aux	grep <process name>`**
`journalctl -u <service name> -l`	view service logs
`crictl ps -a`	for debugging in case kube-api server is not working
`k run test --image nginx --rm -it -- sh`	run sub shell for debugging in pod env.
`ssh <node> '<command>' &> <log path>`	ssh and exec commands
`k get svc,ep -l <key>=<value>`	inspect service and endpoints using labels

Concepts

Pod

A pod is a single instance of an application. A pod is the smallest object that you can create in Kubernetes. A single Pod can have multiple containers except for the fact that they’re usually not multiple containers of the same kind.