FROM registry.fedoraproject.org/fedora:42 RUN set -eux; \ microdnf -y install \ rubygems rpmbuild rpmsign bsdtar mingw-nsis-base.x86_64 mingw32-nsis.noarch gpg2; \ microdnf clean all; # create user with 999 UID/GID RUN set -eux; \ groupadd -g 1001 builder; \ useradd -m -u 1001 -g 1001 -d /home/builder -s /bin/bash builder; \ chown builder:builder /home/builder USER builder ENV PATH="/home/builder/bin:${PATH}" WORKDIR /home/builder RUN set -eux; \ gem install fpm