Be freebsd-independent

[acieroid]

We currently use jails on FreeBSD to run everything. On linux, the new containers could be used to do the same. This poses some problems.

Security

Linux containers (lxc/docker) are currently subject to security issues. It is advised not to use them in setup that need security. My guess is that as containers are quite young, it is just a matter of time before they become secure enough.

Portability

The service files describe the dependencies they need, which are installed by pkg. Package names are not portable between different linux distros and FreeBSD. One solution would be to use a specific, portable, package manager that would run everywhere, with the same package names. The ideal candidate is pkgin.