c8s-container-image.sh

#!/usr/bin/bash

set -xeou pipefail

DNFARGS='--setopt install_weak_deps=0 --assumeyes'

# base image
CONTAINER=$(buildah from --pull-always centos:8)

# utils
buildah run $CONTAINER -- dnf $DNFARGS install dnf-utils

# dnf config
buildah run $CONTAINER -- dnf $DNFARGS install centos-release-stream
buildah run $CONTAINER -- dnf config-manager --disable BaseOS --disable AppStream --disable extras

# update
buildah run $CONTAINER -- dnf $DNFARGS update

# epel
#buildah run $CONTAINER -- dnf --assumeyes install epel-release
#buildah run $CONTAINER -- rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-8

# install stuff
buildah run $CONTAINER -- dnf $DNFARGS install bash-completion findutils less man-db tree vim-enhanced wget

# clean up
buildah run $CONTAINER -- dnf clean all
buildah run $CONTAINER -- find /var/cache/dnf -mindepth 1 -delete

# shell config
buildah copy $CONTAINER bashrc /root/.bashrc

# save image
buildah commit $CONTAINER c8s:latest
buildah rm $CONTAINER