Nitive / kubectl-current-context

kubectl-current-context

Get current kubectl context and namespace super fast. Useful for shell prompts.

Options

Get context/namespace

$ kubectl-current-context -o slug
my-cluster/default

Custom separator with -s flag

$ kubectl-current-context -s='⎈'
my-cluster⎈default

Just context

$ kubectl-current-context -o context
my-cluster

Just namespace

$ kubectl-current-context -o namespace
default

JSON

$ kubectl-current-context -o json
{"context":"my-cluster","namespace":"default"}

Benchmarks

Native kubectl commands to get current context and namespace take ~136ms to run

$ kubectl config current-context
$ kubectl config view --minify --output "jsonpath={..namespace}"

Benchmark #1: kubectl config current-context && kubectl config view --minify --output "jsonpath={..namespace}"
  Time (mean ± σ):     135.7 ms ±   6.9 ms    [User: 139.9 ms, System: 30.5 ms]
  Range (min … max):   123.3 ms … 164.4 ms    100 runs

This implementation takes only ~7ms — 1884% faster

$ kubectl-current-context -o json

Benchmark #1: ./kubectl-current-context -o json
  Time (mean ± σ):       7.2 ms ±   3.0 ms    [User: 6.3 ms, System: 6.0 ms]
  Range (min … max):     4.9 ms …  34.7 ms    100 runs

Installation

Download latest release binary and put it in your /usr/local/bin directory