Does web based updates replace rebuilding the container?

Ok I’m trying to automate this, with a cronjob to rebuild the container after every reboot.

@reboot sleep 300 && /opt/discourse/launcher rebuild app > /root/discord-update.log

It seems to be working, but for some reason the log file get cut after Removing old container.

Is there some kind of recommended way to get automatic updates working?

I had to wait 300 seconds for the docker daemon to start. With this settings it should take 10 min after reboot to be back on air. Rebuilding takes 5 min with a SSD and 2 vCPU.