Q:

Trying to connect codeanywhere with google compute engine via ssh

codeanywhere provides a public ssh key.  i've input it into the metadata and the vm instance in google compute engine, but every time I try to connect from the codeanywhere interface I get an authorization failure and the logs in the instance console have:
yadayada: error: Could not load host key: /etc/ssh/ssh_host_ed25519_key
the instance was setup using the cloud launcher with node.  I have not done anything else to this instance, it's brand spanking new. 
Thoughts? 

A:

ugh, nevermind.  I changed the username in the codeanywhere interface to codeanywhere-ssh-key and it worked.