Example kubectl plugin

kubectl-color

#!/bin/bash

reset="$(tput sgr0)"
bold="$(tput bold)"
red="$(tput setaf 1)"
green="$(tput setaf 2)"
yellow="$(tput setaf 3)"
gray="$(tput setaf 8)"
magenta="$(tput setaf 13)"

declare -A color_map=()

color_map[ContainerCreating]="$magenta"
color_map[Pending]="$yellow"
color_map[Running]="$green"
color_map[Error]="$red"
color_map["[a-zA-Z0-9]\+BackOf[a-zA-Z0-9]\+"]="$red"
color_map[Terminating]="$gray"
color_map[Finished]="$gray"
color_map[Completed]="$gray"
color_map[NotReady]="$red"
color_map[Ready]="$green"

regex=""
for word in ${!color_map[@]}; do
  regex+="s/\b$word\b/${color_map[$word]}&$reset/g; t word; "
done

regex+='

:word
s|\b0/0\b|0/0|; t ok
s|\b1/1\b|1/1|; t ok
s|\b2/2\b|2/2|; t ok
s|\b3/3\b|3/3|; t ok
s|\b4/4\b|4/4|; t ok
s|\b5/5\b|5/5|; t ok
s|\b6/6\b|6/6|; t ok
s|\b7/7\b|7/7|; t ok
s|\b8/8\b|8/8|; t ok
s|\b9/9\b|9/9|; t ok
b color

:ok
s|\b[0-9]\+/[0-9]\+\b|'$green'&'$reset'|g
b done

:color
s|\b0/[1-9]\+[0-9]*\b|'$red'&'$reset'|g; t done
s|\b[1-9]\+/[0-9]\+\b|'$yellow'&'$reset'|g; t done

:done
'

#exec sed --debug -e "$regex"
kubectl $@ | sed -e "$regex"