Aliases:

alias k=kubectl
alias kdr='kubectl -o yaml --dry-run=client'
source <(kubectl completion bash) # set up autocomplete in bash into the current shell, bash-completion package should be installed first.
echo "source <(kubectl completion bash)" >> ~/.bashrc # add autocomplete permanently to your bash shell.
complete -o default -F __start_kubectl k

Kubectl:

Create and Run a POD:
- kubectl run nginx --image=nginx
Create a deployment:
- kubectl create deployment --image=nginx nginx
Using --dry-run=clientand Showing the Yaml -o yaml:
- kubectl run nginx --image=nginx --dry-run=client -o yaml
- kubectl create deployment --image=nginx nginx --dry-run=client -o yaml
- kubectl create deployment nginx --image=nginx --dry-run=client -o yaml > nginx-deployment.yaml
Create a service:
- kubectl create service clusterip redis --tcp=6379:6379 --dry-run=client -o yaml
- kubectl expose pod redis --port=6379 --name redis-service --dry-run=client -o yaml
Filter Labels:
- kubectl get pods -l 'environment in (production),tier in (frontend)
Get PODs and their Nodes:
- kubectl get pod -o=custom-columns=NAME:.metadata.name,STATUS:.status.phase,NODE:.spec.nodeName or
- kubectl get pod -o wide
kubectl get nodes -o wide
List Clusters in the config:
- kubectl config get-clusters
Count Lines
- ... wc -l
- ls | wc -l
- sed "1d" removes the first line
- kubectl get pods | sed "1d" | wc -l
- k get nodes | sed "1d" | wc -l
- ....
Remove a string with sed:
- string: current-context: minikube
- removing minikube from it:
  - cat ~/.kube/config | grep current | sed -e "s/current-context: //", result -> minikube

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