> On Do, 07.03.19 14:03, Marv Lelgemann (144dbspl@xxxxxxxxx) wrote:
>
>> I have a systemd service unit of type "dbus". I would like to have the
>> option to restart (or stop and start) the service with additional command
>> line arguments in "ExecStart".
>
> Do something like this:
>
> mkdir -p /etc/systemd/system/foo.service.d/
> cat > /etc/systemd/system/foo.service.d/override.conf <<EOF
> [Service]
> ExecStart=
> ExecStart=/path/to/my/command --with=a --new-commandline
> EOF
> systemctl daemon-reload
> systemctl restart foo.service
>
> i.e. add a drop-in that first resets ExecStart= to the empty list, and
> the writes the new cmdline to use into it.
Yes, that's a persistent overlay. I was looking for a runtime reconfiguration, something to restart a service on an embedded system in debug mode or similar use cases. A template unit with instances service@default and service@debug would have been OK, but left me with a dbus name conflict. SetEnvironment worked for me.
>
> Lennart
>
> --
> Lennart Poettering, Red Hat
>
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