Re: Creating a user-level systemd unit

[Qiyu Yan]

在 2021-06-29星期二的 12:42 +0100，Patrick O'Callaghan写道：
> I'm trying to get a specific service to start on login, and the usual
> method (KDE Autostart) isn't working so I'm trying to do it with a
> systemd unit:

How is that not working? Is it due to systemd-xdg-autostart-generator?
KDE on Wayland seems to be using systemd-xdg-autostart-generator by
default and causing some problems...
> $ cat startinsync.service 
>    [Unit]
>    Description=insync-headless service
>    After=default.target
>    
>    [Service]
>    ExecStart=/bin/sh /usr/bin/insync-headless start

Just an advice, If you have shebang ahead, you don't need /bin/sh.

ExecStart=/path/to/script.sh is enough, but make sure the script have
+x set.
> KillSignal=SIGINT
>    
>    [Install]
>    WantedBy=default.target
>
> The docs say that the place to put the unit file is given by:
>
> $ pkg-config systemd --variable=systemduserunitdir
>    /usr/lib/systemd/user

No, this place is usually for units installed by package manager.

Per-user unit files can be placed to 
 * ~/.config/systemd/user/ : for you only
 * /etc/systemd/user/ : for everyone on this system
You can check for the detail by `man SYSTEMD.UNIT 5`
> So I copied the file there:
>
> $ ls -l /usr/lib/systemd/user/startinsync.service 
>    -rw-r--r--. 1 root root 177 Jun 29 12:31
> /usr/lib/systemd/user/startinsync.service

Execute `systemctl --user daemon-reload` to tell systemd instance that
files on disk have changed.
> and tried to enable it:
>
> $ sudo systemctl enable startinsync
>    Failed to enable unit: Unit file startinsync.service does not
> exist.

That is for system units, to manage user units, use: 
 * systemd --user enable startinsync to enable for you only
 * systemd --global enable startinsync to enable for everyone on this
   system
> I'm out of ideas.

Asking here is a great idea :)
> poc
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