Also build for CentOS 9.

Signed-off-by: Romain Geissler <romain.geissler@amadeus.com>

dockerfiles/rpm.dockerfile

@@ -105,6 +105,7 @@ RUN chown -R ${UID}:${GID} /archive /build
 #
 # NOTE: Installation of source-packages is not currently tested here.
 FROM distro-image AS verify-packages
+ARG BASE
 COPY scripts/.rpm-helpers /root/
 RUN . /root/.rpm-helpers; install_package createrepo
 RUN if [ -d "/etc/zypp/repos.d/" ]; then ln -s "/etc/zypp/repos.d" "/etc/yum.repos.d"; fi \
@@ -116,7 +117,8 @@ RUN createrepo /build \
  && rm -rf /build/repodata
 RUN containerd --version
 RUN ctr --version
-RUN runc --version
+# Don't try to run runc on RHEL/CentOS as we don't package it anymore.
+RUN if [ "${BASE}" != "rhel" ] && [ "${BASE}" != "centos" ]; then runc --version; fi
 
 FROM scratch AS packages
 COPY --from=build-packages  /archive /archive

rpm/containerd.spec

@@ -30,18 +30,22 @@ AutoReq: no
 
 Name: containerd.io
 Provides: containerd
-# For some reason on rhel >= 8 if we "provide" runc then it makes this package unsearchable
+# On RHEL >= 8 OS, runc is packaged by Red Hat so it won't be provided by this package.
 %if 0%{?rhel} <= 7
 Provides: runc
 %endif
 
 # Obsolete packages
 Obsoletes: containerd
+%if 0%{?rhel} <= 7
 Obsoletes: runc
+%endif
 
 # Conflicting packages
 Conflicts: containerd
+%if 0%{?rhel} <= 7
 Conflicts: runc
+%endif
 
 Version: %{getenv:RPM_VERSION}
 Release: %{getenv:RPM_RELEASE_VERSION}%{?dist}
@@ -51,7 +55,9 @@ URL: https://containerd.io
 Source0: containerd
 Source1: containerd.service
 Source2: containerd.toml
+%if 0%{?rhel} <= 7
 Source3: runc
+%endif
 # container-selinux isn't a thing in suse flavors
 %if %{undefined suse_version}
 # amazonlinux2 doesn't have container-selinux either
@@ -88,10 +94,12 @@ fi
 # symlink the go source path to our build directory
 ln -s /go/src/%{import_path} %{_topdir}/BUILD
 
+%if 0%{?rhel} <= 7
 if [ ! -d %{_topdir}/SOURCES/runc ]; then
     # Copy over our source code from our gopath to our source directory
     cp -rf /go/src/github.com/opencontainers/runc %{_topdir}/SOURCES/runc
 fi
+%endif
 cd %{_topdir}/BUILD/
 
 
@@ -108,7 +116,9 @@ rm -f bin/containerd-stress
 bin/containerd --version
 bin/ctr --version
 
+%if 0%{?rhel} <= 7
 GO111MODULE=auto make -C /go/src/github.com/opencontainers/runc BINDIR=%{_topdir}/BUILD/bin BUILDTAGS='seccomp apparmor selinux %{runc_nokmem}' runc install
+%endif
 
 
 %install