want to write a systemd service file where a user may not exist.
ogra at ubuntu.com
Sat Feb 11 12:41:47 UTC 2017
On Fr, 2017-02-10 at 09:04 -0500, Peter Silva wrote:
> Hi folks, wondering if people could direct me to a good place to ask
> this question. It isn't really a user question, but ... anyways. I
> work on a package that can run either under a dedicated user, as a
> sort of daemon or server mode, or it can be used by ordinary users
> directly in client mode (connecting to daemons elsewhere.)
there are plenty of ways to achieve that :)
> When I install the package, on older releases, there is /etc/default
> and I put a file there to ensure it is disabled by default. That's
you could use a wrapper script for starting your daemon that first
checks /etc/default ...
> in systemd, I use the documented stuff in dh_ and it puts the service
> file in the right place.
you could not use debhelper (which is responsible for enabling the
service by default) but just install the service file to
/lib/systemd/system/ from the debian/install file, not using the
debhelper functions ...
then it should not be started by default and you have to manually do
"systemctl enable <service>"
> Two issues:
> -- when I do systemctl status sarra ... it says: 'vendor preset:
> enabled') I want it to be disabled by default. Couldn't find that.
> -- I don't want to create the daemon user on systems where
> it will only be used as a client, so in many cases the 'user'
> specified in the service file will not exist. How to cleanly handle
you would use a debconf question asking the admin if he wants the user
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