Running containers using systemd

LSIO Discussion Container Support
1

Hi,

i’m trying to run LSIO containers using systemd under my user (using user lingering), but containers stops after a few seconds.

For example with Jackett, i have setup a unit file here: ~/.config/systemd/user/jackett.service

[Unit]
Description=Jackett

[Service]
TimeoutStartSec=10min
Restart=no
ExecStop=-/usr/bin/docker stop %N
ExecStartPre=-/usr/bin/docker rm %N
ExecStartPre=/usr/bin/docker pull linuxserver/jackett
ExecStartPre=/usr/bin/docker create --name %N -v %h/opt/appdata/jackett:/config -v /mnt/nas/media/Transit/blackhole/:/downloads -e PUID=%U -e PGID=1000 -v /etc/localtime:/etc/localtime:ro -p 9117:9117 linuxserver/jackett
ExecStart=/usr/bin/docker start %N

[Install]
WantedBy=multi-user.target

When i run the service with systemd, the conainer is created, runs for a few seconds, and exit.
docker logs on the container yields the following:

[s6-init] making user provided files available at /var/run/s6/etc...exited 0.
[s6-init] ensuring user provided files have correct perms...exited 0.
[fix-attrs.d] applying ownership & permissions fixes...
[fix-attrs.d] done.
[cont-init.d] executing container initialization scripts...
[cont-init.d] 10-adduser: executing... 
[cont-finish.d] executing container finish scripts...
[cont-finish.d] done.
[s6-finish] syncing disks.
[s6-finish] sending all processes the TERM signal.
[s6-finish] sending all processes the KILL signal and exiting.

Does anyone know why this is happening?
Is there maybe a guide on how to setup LSIO containers as systemd services?

I would like the containers to run at startup and restart on failure, so systemd seemed like a good option, but maybe there is another way (on Ubuntu) ?

Thanks !

2

Our libreelec docker addons are managed via systemd.

Although I don’t see anything wrong with your service file, you should check systemd logs via journalctl -xe

I would really recommend using docker-compose instead of systemd, though.

3

With compose is it possible to start containers at boot?
I think auto restart policies are built-in.

Also, how would you handle scheduled restart of containers every week to ensure latest version from lsio is used?

4

In your compose yml, add the restart directive and you can set it to unless-stopped and they’ll start on boot.

With compose, updating containers is easy. First, you do a docker-compose pull to update images and then a docker-compose up -d, which will recreate containers as necessary (only the ones with an image update) and will start them. Afterwards, you can do a docker image prune -f to remove any old images.

I have a script that has the three commands above. I manually run it when I want to update. But you can put it in cron if you want to automate.

5

That sounds like an interesting approach, i didn’t know compose would restart containers upon reboot!

I will give it a try, thanks for the hints.