Playbook for Hetzner VMs being reported as unreachable

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Playbook for debugging Hetzner issue

  1. Check with a separate device that the services being reported as down are unreachable
  2. Manually run `traceroute -I` as root from status.delftinfra.net to a VM that is unreachable.
  3. Determine whether or not there is a hop in the path that is problematic.
  4. Reset the servers DHCP settings if a hop fails, using `dhclient eth0`
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