FROM centos:latest
ENV APP_NAME=rpmbuild
ENV VERSION=latest

RUN mkdir -p /tmp/build/rpm

WORKDIR /tmp/build/rpm
RUN dnf install -y --allowerasing gcc rpm-build rpm-devel \
    rpmlint make bash coreutils \
    diffutils patch rpmdevtools && \
    dnf clean all && \
    rm -Rf /var/dnf/cache && \
    rpmdev-setuptree

VOLUME /tmp/build/rpm
CMD ["rpmbuild", "--define version ${VERSION}", "-bb", "${APP_NAME}.spec"]