Re: periodiekejob met parameter en systemd @%i

[Geert Stappers]

On Sat, May 16, 2020 at 06:51:04PM +0200, Geert Stappers wrote:
> On Sat, May 16, 2020 at 01:41:00PM +0200, Luuk wrote:
> > On 15-5-2020 22:42, Geert Stappers wrote:
> > > 
> > > Wat ik zoek is
> > >   how configure multiple systemd timers to use same systemd service
> > > 
> > > 
> > > Met cron zou het iets zijn als
> > > 
> > > #m h d m day
> > > *  7 * * Mon-Sat  periodiekejob dagelijks
> > > *  5 * * Sun      periodiekejob wekelijks
> > > 0  * * * *        periodiekejob elkuur
> > > 
> > > 
> > > Met systemd heb ik dan drie timers  en drie service files nodig.

Het blijkt dat  @%i  doet wat ik zocht.

Wat volgt is een proof of concept  ( staat ook in de tarball )

==> README.md <==

Proof of concept of several systemd timers
starting the same systemd service


sudo make install


journalctl -fu rapporteer@\*
(control-C to exit)


sudo make deinstall


# l l

==> Makefile <==
#
all:
        @echo nothing to build ...

install:
        cp rapporteer /usr/local/bin/
        cp rapporteer@tien.timer /etc/systemd/system/
        cp rapporteer@twaalf.timer /etc/systemd/system/
        cp rapporteer@minuut.timer /etc/systemd/system/
        cp rapporteer@.service /etc/systemd/system/
        systemctl daemon-reload
        systemctl start rapporteer@tien.timer
        systemctl start rapporteer@twaalf.timer
        systemctl start rapporteer@minuut.timer

deinstall:
        -systemctl stop rapporteer@tien.timer
        -systemctl stop rapporteer@twaalf.timer
        -systemctl stop rapporteer@minuut.timer
        rm -f /usr/local/bin/rapporteer
        rm -f /etc/systemd/system/rapporteer@tien.timer
        rm -f /etc/systemd/system/rapporteer@twaalf.timer
        rm -f /etc/systemd/system/rapporteer@minuut.timer
        rm -f /etc/systemd/system/rapporteer@.service
        systemctl daemon-reload

tarball:
        mkdir rapporteerpoc
        -cp * rapporteerpoc/
        rm -f rapporteerpoc/*.tgz
        tar czf rapporteerpoc.tgz rapporteerpoc/
        rm -rf rapporteerpoc

clean:
        rm -f rapporteerpoc.tgz

# l l

==> rapporteer <==
#!/usr/bin/python3
'''
 rapporteer
    Proof Of Concept for handing over parameter
    through environment variables

'''

import os

if os.getenv('RAPPORTEER'):
    parameter = os.getenv('RAPPORTEER')
else:
    parameter = "not_present"

print("parameter value is {}".format(parameter))

# l l

==> rapporteer@.service <==
[Unit]
Description=rapporteer %i POC, several timers will start us

[Service]
Type=oneshot
Environment=RAPPORTEER=%i
ExecStart=/usr/local/bin/rapporteer

[Install]
WantedBy=multi-user.target

# l l

==> rapporteer@minuut.timer <==
[Unit]
Description=Rapporteer Proof of concept

[Timer]
Unit=rapporteer@%i.service
OnCalendar=*-*-* *:*:00

[Install]
WantedBy=timers.target

# l l

==> rapporteer@tien.timer <==
[Unit]
Description=Rapporteer Proof of concept

[Timer]
Unit=rapporteer@%i.service
OnCalendar=*-*-* *:*:10,30,50

[Install]
WantedBy=timers.target

# l l

==> rapporteer@twaalf.timer <==
[Unit]
Description=Rapporteer Proof of concept

[Timer]
Unit=rapporteer@%i.service
OnCalendar=*-*-* *:*:12,32,52

[Install]
WantedBy=timers.target

# l l



Groeten
Geert Stappers
-- 
Silence is hard to parse

rapporteerpoc.tgz
Description: application/gtar-compressed