[systemd-devel] Running a set of group isolated from other services?

[Lennart Poettering]

On Wed, 26.04.17 11:05, Benno Fünfstück (benno.fuenfstueck at gmail.com) wrote:

> Hi,
> 
> I have the problem that I want to run a set of services that are isolated
> from the other services. In particular, I'd like to:
> 
> * share some environment variables between these services, that aren't
> available for services outside the group

You can share a common environment file between them and use EnvironmentFile=-

> * be able to stop all the services in the group and wait for proper
>   shutdown

Usually you'd create a target unit for that and use PartOf=.

> * (would be nice) load services for the group from a different directory
> than the default one

This is not supported. ATM you cannot extend the unit file search path
locally. It's built into the binary. (Well, to be entirely honest you
can override it with an env var, but it's hard to do for PID 1 and
mostly relevant for debugging)

> * (would be nice) be able to add transient services to the group with
> systemd-run

if you set up such a target unit it doesn't matter whether the
services that are linked to it are transient or persistent.

Lennart

-- 
Lennart Poettering, Red Hat