#!/bin/bash
set -euo pipefail

sudo rm -f /tmp/key
curl -L -o /tmp/key https://raw.githubusercontent.com/flatcar/scripts/main/sdk_container/src/third_party/coreos-overlay/coreos-base/coreos-au-key/files/official-v2.pub.pem
sudo umount /usr/share/update_engine/update-payload-key.pub.pem || true
sudo mount --bind /tmp/key /usr/share/update_engine/update-payload-key.pub.pem
if [ -d /etc/coreos ]; then
  sudo mv /etc/coreos /etc/flatcar
  sudo ln -s flatcar /etc/coreos
fi
sudo sed -i "/SERVER=.*/d" /etc/flatcar/update.conf
echo "SERVER=https://public.update.flatcar-linux.net/v1/update/" | sudo tee -a /etc/flatcar/update.conf
if [ -d /var/lib/coreos-install ] && [ ! -e /var/lib/flatcar-install ]; then
  sudo ln -sn /var/lib/coreos-install /var/lib/flatcar-install
fi
sudo systemctl restart update-engine
sudo update_engine_client -update
sudo sed -i "/SERVER=.*/d" /etc/flatcar/update.conf
echo "Done, please reboot now"