You can also comment out the bits you don't want from https://github.com/sovereign/sovereign/blob/master/site.yml before you run the top level playbook.
For extra security, bind ssh to localhost only and run a tor hidden service on the machine for accessing it.
You can also comment out the bits you don't want from https://github.com/sovereign/sovereign/blob/master/site.yml before you run the top level playbook.