How to update a docker container to run latest code

[adanielyan]

Hi, I have a deployment of tolgee in a docker container. I wonder what's the right way to update the version of tolgee within that container. Please help!

[JanCizmar]

Hey, you have to remove the old container and run a new one with the new image version. You have to mount the volume from deleted container to the new one.

[adanielyan]

Doing it removed all of my data including user accounts... Fortunately it was only test data, but I don't see how this can work in production.

[adanielyan]

The problem in your case is, that you're using separate postgresql container without volume specified.

What would be the right way to specify a volume to avoid this issue?

[JanCizmar]

/var/lib/postgresql/data is the dir, where postgres stores it's data. So mount a volume for that path.

[adanielyan]

Should it be mounted to ./data/postgres? In fact when I mount the ./data:data for my tolgee container it creates data/postgres folder and all of the postgres subfolders there. Why is the mounting from postgres container also needed?

[JanCizmar]

You've probably started the tolgee container wihout the tolgee_postgres_autostart_enabled=false, so it has started the bundled Postgres and created these files.

[adanielyan]

I think you are right! Creating a volume mapping fixed this issue. Now I can delete the containers and images and recreate them without loosing my data. Thank you so much for your help!