TIPS FOR EXAM

 kubectl run pod1 --image nginx --labels='app=mohan,env=prod'
 kubectl expose pod pod1 --port=80 --name=svc1 --type=NodePort  --dry-run=client -o yaml > expose.yaml
 clean every thing on the server
 kubectl delete all --all


 kubectl get all

 kubectl get all -A 


get pod in all namespaces

kubectl get pod --all-namespaces

get pod with labels

kubectl get pod --show-labels

aliases


Kubectl Autocomplete (from K8S cheatsheet)
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 autocomplete permanently to your bash shell.

alias k=kubectl
complete -F __start_kubectl k

alias k=kubectl
alias kgp='kubectl get pods -o wide'
alias kgs='kubectl get svc -o wide'
alias kgd='kubectl get deploy -o wide'

alias kdp='kubectl describe pod'
alias kdd='kubectl describe deploy'
alias kds='kubectl describe svc'
export gen="--dry-run=client -o yaml"

alias kdn='kubectl describe node'
alias kgn='kubectl get nodes -o wide'




I find useful the below lines:
alias k=kubectl
source <(k completion bash)
source <(k completion bash | sed s/kubectl/k/g)

vi ~/.vimrc

autocmd FileType yaml setlocal ts=2 sts=2 sw=2 expandtab ruler incsearch
set number
set ignorecase
set backspace=indent,eol,start
set cursorline
set list



here is my .vimrc file, hope it will be helpful.

syntax enable
set tabstop=2       " number of visual spaces per TAB
set softtabstop=2   " number of spaces in tab when editing
set expandtab       " tabs = spaces

set number		" show line numbers
set cursorline		" highlight the current line
set showcmd		" show command in bottom bar
filetype indent on	" load filetype specific indent files in ~/.vim/indent/*.vim
set wildmenu
set lazyredraw
set showmatch		" show matches of {} [] ()

set incsearch		" search as characters are entered
set hlsearch		" highlight matches
set ignorecase		" ignore upper/lower case when searching
let mapleader = "," 	" leader is comma
" turn off search highlight, mapping to ,<space>
nnoremap <leader><space> :nohlsearch<CR>

set backspace=indent,eol,start   " allows backspace to delete words
Enable the kubelet autocomplete

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 autocomplete permanently to your bash shell.

alias k=kubectl
complete -F __start_kubectl k


kubectl label nodes node1 room=103

apiVersion: v1
kind: Pod
metadata:
  name: nginx
  labels:
    env: test
spec:
  containers:
  - name: nginx
    image: nginx
    imagePullPolicy: IfNotPresent
  nodeSelector:
    room: "103"
    
    
 kubectl apply -f pod.yaml