Deploy: serve host ssh key in webapp
Deploy: Ignore current logs and temporary files when building docker image
Deploy: Added rrsync to docker image
Deploy: Settings for production environment
Deploy: ensure sync directory and authorized_keys are writable

For the moment we are allowing write access to the authorized_keys file to the user running the web application.
We should consider queing the keyes to be added so that another process with enough privileges adds them
Deploy: use authorized_keys file stored in persistent container
Deploy: declare necessary volumes in Dockerfile