Dockerfile.centos

# Copyright 2025 The MathWorks, Inc.
# This Dockerfile is still a work in progress and may not work
ARG BUILD_ROOT=/root/
ARG RPM_DIR=${BUILD_ROOT}/rpmbuild/RPMS/x86_64/

ARG ARCH=
ARG DIST_BASE=centos
ARG DIST_TAG=centos7.9.2009
FROM ${DIST_BASE}:${DIST_TAG} AS build-stage

RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/CentOS-*.repo && \
    sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/CentOS-*.repo && \
    sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/CentOS-*.repo 

RUN yum install -y epel-release && \
    yum install -y dnf

RUN dnf install -y --nodocs dnf-plugins-core && \
    dnf install -y rpm-build make 

ARG BUILD_ROOT
WORKDIR ${BUILD_ROOT}

RUN dnf download --source glibc && \
    dnf builddep -y --nodocs glibc-*.src.rpm && \
    rpm -ivh glibc-*.src.rpm

ARG GLIBC_VERSION=2.17
COPY scripts/update-specfile.sh ${BUILD_ROOT}
COPY patches/rhel/${GLIBC_VERSION} ${BUILD_ROOT}/patches

RUN cp patches/* rpmbuild/SOURCES && \
    ./update-specfile.sh

RUN rpmbuild --nocheck -bb rpmbuild/SPECS/glibc.spec

ARG RPM_DIR
WORKDIR ${RPM_DIR}

RUN tar -czf all-packages.tar.gz *.rpm

FROM scratch AS release-stage
ARG RPM_DIR
COPY --from=build-stage ${RPM_DIR}/*.rpm /build/
COPY --from=build-stage ${RPM_DIR}/all-packages.tar.gz /build/