I tested here and it works fine. Looks like something wrong with docker itself? Maybe restart the daemon helps.

My configuration : podman in rootless mode under nixos.

On nixos command line :

$  echo "mypasswd" | docker login -u mylogin --password-stdin                                 
Login Succeeded!

docker is a direct bash alias for podman. so i suppose it works with podman.

Then inside the onedev docker container :

$ podman container exec -it onedev bash
root@a66d63f5e98c:/# echo "mypasswd" | docker login -u mylogin --password-stdin
Error response from daemon: login attempt to https://index.docker.io/v1/ failed with status: pinging container registry index.docker.io/v1/: invalid status code from registry 404 (Not Found)

It does not work from inside the onedev container

I also run container list from insde to check if docker.sock is always valid

# root@a66d63f5e98c:/# docker container ls
CONTAINER ID   IMAGE                COMMAND                  CREATED      STATUS      PORTS                      NAMES
a66d63f5e98c   1dev/server:7.9.12   "/root/bin/entrypoin…"   3 days ago   Up 3 days   127.0.0.1:6610->6610/tcp   onedev

everything is fine.

--

Maybe a podman issue, i will investigate. If you have a idea...

Looks like a podman compatiblity issue to me. I tried to run docker login in below container and it reports the same error:

podman run -it --rm -v $XDG_RUNTIME_DIR/podman/podman.sock:/
var/run/docker.sock docker sh

While this works fine:

docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock docker sh

A workaroung might be to login outside OneDev container beforehand.

Same thought.

Thanks