matti

Beautiful Bash

until something is true

if "creation" command fails, sleep 1

while true; do
  kubectl get namespace mynamespace && break
 kubectl create namespace mynamespace || sleep 1

matti

require "pty"

stderr_reader, stderr_writer = IO.pipe

args = ["-c", "read a; echo was: $a; echo err:$a >&2"]
stdout,stdin,pid = PTY.spawn("/bin/bash", *args, err: stderr_writer.fileno)
stderr_writer.close

stdin.puts "hello"