Feat: add link role

Feat: allow defining extra nginx container vols, service prerequisites and group
System Baseline role does not disable root user SSH
Can confirm this behaves as expected and disables the root user
System Baseline role does not disable root user SSH
Add acute's SSH key
Add acute's ssh key to the baseline role
- user: acute comment: acute ssh_public_key: "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQChdcj+GLhTme17lt8hKRSx5T5jrJlPlWsNSSK+Dnh594jLea0i/soYT+GimvGqrlZOOknSLDWHlnePa8K9nYm5hElDodmXbTCq2X4…
Add acute's ssh key to the baseline role
System Baseline role does not disable root user SSH