minimal alpine-bsed image containing kubectl

Vadim Surkov 41053e607f remove ipcalc, add mask3cdr instead		4 anni fa
Dockerfile	41053e607f remove ipcalc, add mask3cdr instead	4 anni fa
README.md	8562608215 add jq	4 anni fa
mask2cdr	41053e607f remove ipcalc, add mask3cdr instead	4 anni fa

kubectl

minimal alpine-bsed image containing kubectl, jq and curl