#!/bin/bash
# Simple ngrok alternative, using an SSH reverse tunnel on
# an internet-accessible server.
set -o errexit

port="$1"
if [[ -z "$port" ]]; then
    echo "must specify port" >&2
    echo "Usage: mgrok PORT" >&2
    exit 1
fi

echo "Exposing localhost:$port at https://dev.crashbox.io"
echo "Press Ctrl+C to stop" >&2

# The remote server is assumed to proxy http(s) traffic
# destined to dev.crashbox.io to localhost:8080
exec ssh -N -T -R8080:localhost:"$1" dev.crashbox.io