[QUESTION] How to update using docker-compose?

[mfnalex]

Hi :)

Thanks for this awesome software! I've been looking for something like this for weeks! Now, to my question :D

How can I update from 1.8.7 to 1.8.8 using docker-compose? I did docker-compose stop and then docker-compose up -d and thought it will now use the newest version, but it doesn't. I'm not really familiar with docker, so any help would be appreciated :)

[Lissy93]

Heya @mfnalex - Thank you for your kind words 😊

So I wrote some docs on how to update Docker containers, which you can find here. I think in your situation, the easiest method is going to be to use WatchTower.

But if you want to do it manually, then just kill of the existing container, and pull down the latest image, then restart the existing container. Maybe something like this:

• Stop container: docker-compose stop
• Pull latest image: docker pull lissy93/dashy:latest
• Remove container: docker rm [container_id]
• Spin up new container: docker-compose up

I push updates a few times a week, so updating manually might get a bit annoying.
Hope that helps :)

[EVOTk]

Hello,
Then think about doing docker image prune to delete the old images from your system.

You can also start Watchtower manually this way so it will see if an update for Dashy is available, if so it will upgrade and then shut down ( --rm argument) :

docker run --rm \
-v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower \
--run-once Dashy

https://containrrr.dev/watchtower/arguments/

[mfnalex]

Thank you! Somehow I couldn't find the existing docs, sooo thanks again :D

[Lissy93]

Thanks @EVOTk useful info :)

[mfnalex]

Is it correct that Watchtower also works for Docker compose? Sorry to steal your time, I'm a total docker noob, but to me it looked like Watchtower only works for "regular" docker containers that were pulled from the hub, and not for "composed" containers.

[EVOTk]

Watchtower works for all containers.
By default, it monitors and updates all containers.
We can also ask him to monitor / update the containers we choose (via label)