something overwrote vagrant authorized_keys file on ohpc node

I was unable complete vagrant up ohpc because ssh auth stopped working. The machine did complete booting and was accessible on the console.

Inspecting the authorized_keys file for vagrant showed the provisioned keys were no longer present. Only the cluster key (generated by ohpc) was there. I had to manually store the authorized_keys for the public key used for the provision in order to make vagrant up complete successfully.