Before building the docker
Since it's not on docker hub because blablabla, you have to :
- Edit your config.toml to match your infrastructure
 - generate a keypair dedicated to this docker : 
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"- it's highly recommanded to use a restrained 
authorized_keysfiles with this key to be sure that it will be only usable from a single IP (after all it's a root executed software) :from="1.2.3.4,1.2.3.5" ssh-rsa [...] your_email@example.com 
 - it's highly recommanded to use a restrained 
 - Deploy your ssh key on the targetted machines