#!/usr/bin/env bash
set -e
host=${1:-127.0.0.1}
port=${2:-2222}
max_attempts=${3:-30}
for _ in $(seq 1 "$max_attempts"); do
  if nc -z -w 1 "$host" "$port" 2>/dev/null; then
    exit 0
  fi
  sleep 1
done
echo "timeout waiting for $host:$port" >&2
exit 1