ssh-server.sh

    #!/bin/bash

    if [[ -z "$NGROK_TOKEN" ]]; then
      echo "Please set 'NGROK_TOKEN'"
      exit 2
    fi

    if [[ -z "$SSH_PASSWORD" ]]; then
      echo "Please set 'SSH_PASSWORD' for user: $USER"
      exit 3
    fi

    wget -q https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-386.zip
    unzip ngrok-stable-linux-386.zip
    chmod +x ./ngrok

    echo -e "$SSH_PASSWORD\n$SSH_PASSWORD" | sudo passwd "$USER"

    rm -f .ngrok.log
    ./ngrok authtoken "$NGROK_TOKEN"
    ./ngrok tcp 22 --log ".ngrok.log" &

    sleep 10

    HAS_ERRORS=$(grep "command failed" < .ngrok.log)

    if [[ -z "$HAS_ERRORS" ]]; then
      echo ""
      echo "To connect: $(grep -o -E "tcp://(.+)" < .ngrok.log | sed "s/tcp:\/\//ssh $USER@/" | sed "s/:/ -p /")"
      echo ""
    else
      echo "$HAS_ERRORS"
      exit 4
    fi