[systemd-devel] Is it possible to load unit files from paths other than default paths ?

[Raghavendra. H. R]

But SYTEMD_UNIT_PATH isn't working. I added my executables path for this
env variable but whatever I add isn't reflected for this variable. If I do
echo of $SYSTEMD_UNIT_PATH. Its all empty. My executables are not able to
find the path and it is not running.

--
Regards,

Raghavendra. H. R
(Raghu)

On Thu, Sep 22, 2016 at 12:26 PM, Andrei Borzenkov <arvidjaar at gmail.com>
wrote:

> On Thu, Sep 22, 2016 at 9:18 AM, Raghavendra. H. R <raghuhr84 at gmail.com>
> wrote:
> > Thank you for the suggestions.
> > But with this suggestion i.e., generator file, I again need to add/modify
> > some files.
> >
>
> You need to add/modify some files to implement your service anyway. I
> do not see how one more file is a problem so far.
>
> > All I'm looking into is I mount my binaries and unit files under /mnt. By
> > setting any environment variable like SYSTEMD_UNIT_PATH, systemd should
> pick
> > the unit files from /mnt and execute my binaries as per the instructions
> > given in unit file.
> >
>
> Which is exactly what it does. You just need to set variable in
> environment of systemd.
>
> > In normal init.d systems, we have environment variables like PATH &
> > LD_LIBRARY_PATH.
> > No matter where I place my new executable or library, adding new path
> into
> > these environment variables is enough to execute or link the library.
> >
> > Probably this kind of facility is not available in Systemd init systems.
> >
> > --
> > Regards,
> >
> > Raghavendra. H. R
> > (Raghu)
> >
> > On Wed, Sep 21, 2016 at 10:40 PM, Andrei Borzenkov <arvidjaar at gmail.com>
> > wrote:
> >>
> >> 21.09.2016 14:26, Raghavendra. H. R пишет:
> >> > Hi,
> >> >
> >> > I'm newbie with systemd boot system and I need help in resolving one
> >> > issue.
> >> >
> >> > I would like to create a service under a customized path Eg:/mnt and
> >> > systemd should be able to pick my unit file from this.
> >> >
> >> > I tried by setting *Environment=SYSTEMD_UNIT_PATH=/mnt *from the
> >> > console
> >>
> >> This should be set in environment of srarted systemd, which in case of
> >> systemwide init effectively means either you need to use some wrapper to
> >> set it and exec systemd or hack initrd.
> >>
> >> Also SYSTEMD_UNIT_PATH does not really play nicely with priorities of
> >> unit locations (run-time vs. sysadmin vs. shipped).
> >>
> >> May be it is simpler to install generator that copies your unit
> >> definition in standard location. This guarantees it is available before
> >> systemd starts.
> >
> >
>
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