Bash script for building bindfs for CentOS 8 from the Fedora 31 src.rpm package using Docker

bindfs-build-rpm.sh

#!/bin/bash

wget http://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/source/tree/Packages/b/bindfs-1.14.1-2.fc31.src.rpm

cat > Dockerfile <<"EOF"
FROM centos:8

RUN mkdir -p /root/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS} && mkdir -p /bindfs

RUN dnf -y --nogpgcheck install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm wget zip unzip bzip2 gcc gcc-c++ rpm-build make ruby valgrind fuse-devel

COPY bindfs-1.14.1-2.fc31.src.rpm /root/rpmbuild/

RUN cd /root/rpmbuild/ && \
    rpmbuild --rebuild bindfs-1.14.1-2.fc31.src.rpm

EOF

docker build -t bindfs-builder .

mkdir build; cd build
docker run --mount type=bind,dst=/bindfs,src=`pwd` -t bindfs-builder:latest cp -r /root/rpmbuild/RPMS/x86_64 /bindfs
cp x86_64/* .

# Resulting packages:
# bindfs-1.14.1-2.el8.x86_64.rpm
# bindfs-debugsource-1.14.1-2.el8.x86_64.rpm
# bindfs-debuginfo-1.14.1-2.el8.x86_64.rpm