podman error: Error: error creating build container: initializing source - docker

Question

I have a strange problem with podman. I have a large Dockerfile of an open source project called spilo that I was always able to build. Today for some strange reason the same code doesn't work anymore. It's true that I haven't used podman for a month but today I got a strange problem. To simplify the error I created a simple Dockerfile just to show you the problem:
ARG BASE_IMAGE=ubuntu:18.04
ARG PGVERSION=14
ARG COMPRESS=false
FROM $BASE_IMAGE as builder-false
RUN apt-get update; apt-get install -y pgbackrest
FROM scratch as builder-true
COPY --from=builder-false / /
FROM builder-${COMPRESS}
Now if I run:
podman build . -t prova:latest
I got the following error:
[3/3] STEP 1/1: FROM builder-false
Resolving "builder-false" using unqualified-search registries (/etc/containers/registries.conf.d/999-podman-machine.conf)
Trying to pull docker.io/library/builder-false:latest...
Error: error creating build container: initializing source docker://builder-false:latest: reading manifest latest in docker.io/library/builder-false: errors:
denied: requested access to the resource is denied
unauthorized: authentication required
It seems it try to search the builder-false image from docker.io repository instead try to build it from the row above. The steps to create the builder-false are not executed.
Can anyone help me to address this issue?
The original spilo project Dockerfile always worked. I reinstalled the podman VM but no luck. I also restarted the Mac, no luck.

Answer 1

I think there is a bug somewhere in dependencies of pgbackrest. I got this on my podman (centos 8) executing RUN apt-get install -y pgbackrest:
chfn: PAM: System error
adduser: `/usr/bin/chfn -f PostgreSQL administrator postgres' returned error code 1. Exiting.
dpkg: error processing package postgresql-common (--configure):
installed postgresql-common package post-installation script subprocess returned error exit status 1
With docker works fine.