podman ignoring /etc/containers/registries.conf and .conf.d when in rootless mode

[Hadmut Danisch]

Hi,

in contrast to docker, podman does not have a default registry to pull from, but uses /etc/containers/registries.conf and .conf.d to resolve the names.

E.g. the file coming with ubuntu, i.e. /etc/containers/registries.conf.d/shortnames.conf

resolves alpine to docker.io/library/alpine

This usually works for both root and other users (non-root mode).

In 24.04 beta it works only for root.

i.e. a

podman pull alpine

works when run as root, but not as a normal user, it can't resolve the source then. strace shows that it does not even look for a registrries.conf.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: podman 4.9.3+ds1-1build2
ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1
Uname: Linux 6.8.0-22-generic x86_64
ApportVersion: 2.28.0-0ubuntu1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: LXQt
Date: Fri Apr 19 21:29:50 2024
InstallationDate: Installed on 2024-04-19 (0 days ago)
InstallationMedia: Lubuntu 24.04 LTS "Noble Numbat" - Beta amd64 (20240410)
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: libpod
UpgradeStatus: No upgrade log present (probably fresh install)