Install dependencies

 rvm use 1.9.3
 gem install sinatra
 gem install thin

Set up Keep backing store directories

 mount /dev/some-disk /mnt/point
 mkdir -p /mnt/point/keep

Start server

 IP=0.0.0.0 PORT=25107 ./keep.rb

Start server With SSL support

 export SSL_CERT=/etc/ssl/certs/keep.crt
 export SSL_KEY=/etc/ssl/private/keep.pem
 IP=... PORT=... ./keep.rb