Connectivity issues between containers on the same network on Debian-based DietPi

General Discussions
1

I’ve updated docker-ce to 27.3.1 on my dietpi linux today.
after that I saw a lot of connection issues between the containers.
the container lost the connection but have been able to reconnect after a few seconds.

I’ve downgraded to 27.2.0 and there I don’t have this issue. all container have a stable connection to each others.

any idea’s what this could be?

all containers have the same bridge network

2

You could check the release notes (link).

3

I would also add that Dietpi linux is not a supported distribution. Supported distributions can be found here:

https://docs.docker.com/engine/install/#supported-platforms

If dietpi had a guide for installing Docker, maybe you can try a Dietpi form (if it exists) just in case it is not a general Docker issue.

4

Dietpi is based on Debian and uses the standard packages.
And I had the same issue as well on raspberry

5

I found the topic you opend on the Dietpi forum so I leave the link here:

A distribution is made to change some things in the base distribution. Any small change could affect how some software work which was not expected running on that distribution even if using the same packages.

I’m not saying you can’t ask about the issue here, but if it can’t be reproduced on Debian, it will be harder to help you. I use Ubuntu, and I didn’t notice network issues there yet with v27.3.1. So it is either something that happens on Debian, or something that is different on your machine.

What does this command returns on Dietpi?

cat /etc/os-release

I think the only network related change according to the changelog is this: