[systemd-devel] Variables in the [Unit] section of a server

[Steve Dickson]

Hello,

Is is possible to set a variable in the [Unit]
section of a service?

For example in rpc-gssd.service there is
    ConditionPathExists=/etc/krb5.keytab

but for some installation the krb5.keytab
is in a different place. The rpc.gssd daemon
can be told this by setting a command line
argument from the EnvironmentFile.

So people have to edit both the EnvironmentFile
and the rpc-gssd.service to make this change. 

So it would be nice if only the EnvironmentFile
need to be edit and the change would happen
in both places. 

Possible?

steved.