#!/usr/bin/env bash
# fail if any commands fails
set -e
# debug log
set -x

# write your script here
#!/bin/bash
set -eu

case "$OSTYPE" in
linux*)
  echo "Configuring for Ubuntu"
  echo "Configuring variables"
  CLIENT_KEY=${ENV_CLIENT_KEY}
  CA_CRT=${ENV_CA_CRT}
  CLIENT_CRT=${ENV_CLIENT_CRT}
  ROUTE_IPS=${ENV_ROUTE_IPS}
  HOST=${ENV_VPN_HOST}
  PORT=${ENV_VPN_PORT}

  sudo apt-get update
  sudo apt-get install -y openvpn net-tools
  cat <<EOF > /tmp/client.conf
remote ${HOST}
port ${PORT}
proto tcp
dev tap
client
ca ca.crt
cert client.crt
key client.key
comp-lzo
persist-key
persist-tun
verb 3

route ${ROUTE_IPS}
EOF

  echo ${CA_CRT} | base64 -d > /tmp/ca.crt
  echo ${CLIENT_CRT} | base64 -d > /tmp/client.crt
  echo ${CLIENT_KEY} | base64 -d > /tmp/client.key

  cd /tmp
  sudo openvpn client.conf > /dev/null 2>&1 &

    sleep 15

	if ifconfig | grep tap0 > /dev/null
    then
      echo "VPN connection succeeded"
    else
      echo "VPN connection failed!"
      exit 1
    fi
    ;;
  *)
    echo "Unknown operative system: $OSTYPE, exiting"
    exit 1
    ;;
esac

# or run a script from your repository, like:
# bash ./path/to/script.sh
# not just bash, e.g.:
# ruby ./path/to/script.rb