[tor-relays] Is it safe to run an exit node from a VPS provider?

Hi, Over the past month I've been running a tor exit relay in a spare VPS machine that I am not using. It occurs to me know that this was probably a very poor idea, as I can't control the physical access to the machine or encrypt private key. In the good bad ISPs page<https://trac.torproject.org/projects/tor/wiki/doc/GoodBadISPs>, I see that some cloud providers are listed (aws, etc). This implies that such a practice is okay, but If linode or a malicious party wanted to read the contents of /var/lib/tor/keys I don't think they'd have any difficulty whatsoever. How do folks secure their relay's keys on a vps environment? Or should I shutdown this relay and run a relay only when I am sure the keys are secured? -JB