Adds RHEL 8 and RHEL 9 support for s390x

Added Dockerfile for rhel-8. Modified rpm/Makefile to add support for rhel-8.

Signed-off-by: Nirman Narang <narang@us.ibm.com>

Add RHEL 9 Dockerfile

Signed-off-by: Prabhav Thali <Prabhav.Thali1@ibm.com>

rpm/Makefile

@@ -13,7 +13,7 @@ SCAN_GITCOMMIT?=$(shell cd $(realpath $(CURDIR)/../src/github.com/docker/scan-cl
 BUILDX_GITCOMMIT?=$(shell cd $(realpath $(CURDIR)/../src/github.com/docker/buildx) && git rev-parse --short HEAD)
 
 ifdef BUILD_IMAGE
-	BUILD_IMAGE_FLAG=--build-arg $(BUILD_IMAGE)
+	BUILD_IMAGE_FLAG=--build-arg BUILD_IMAGE=$(BUILD_IMAGE)
 endif
 BUILD?=DOCKER_BUILDKIT=1 \
 	docker build \
@@ -61,7 +61,7 @@ RUN?=docker run --rm \
 FEDORA_RELEASES ?= fedora-37 fedora-36 fedora-35
 CENTOS_RELEASES ?= centos-7 centos-8 centos-9
 ifeq ($(ARCH),s390x)
-RHEL_RELEASES ?= rhel-7
+RHEL_RELEASES ?= rhel-7 rhel-8 rhel-9
 else
 RHEL_RELEASES ?=
 endif
@@ -80,7 +80,7 @@ clean: ## remove build artifacts
 	-docker builder prune -f --filter until=24h
 
 .PHONY: rpm
-rpm: fedora centos ## build all rpm packages
+rpm: fedora centos rhel ## build all rpm packages
 
 .PHONY: fedora
 fedora: $(FEDORA_RELEASES) ## build all fedora rpm packages
@@ -91,6 +91,9 @@ centos-8 centos-9: RPMBUILD_EXTRA_FLAGS=--define '_without_btrfs 1'
 .PHONY: centos
 centos: $(CENTOS_RELEASES) ## build all centos rpm packages
 
+.PHONY: rhel-8 rhel-9
+rhel-8 rhel-9: RPMBUILD_EXTRA_FLAGS=--define '_without_btrfs 1'
+
 .PHONY: rhel
 rhel: $(RHEL_RELEASES) ## build all rhel rpm packages
 

rpm/rhel-8/Dockerfile

@@ -0,0 +1,34 @@
+ARG GO_IMAGE
+ARG DISTRO=rhel
+ARG SUITE=8
+ARG BUILD_IMAGE=dockereng/${DISTRO}:${SUITE}-s390x
+
+FROM ${GO_IMAGE} AS golang
+
+FROM ${BUILD_IMAGE}
+ENV GOPROXY=https://proxy.golang.org|direct
+ENV GO111MODULE=off
+ENV GOPATH=/go
+ENV PATH $PATH:/usr/local/go/bin:$GOPATH/bin
+ENV AUTO_GOPATH 1
+ENV DOCKER_BUILDTAGS exclude_graphdriver_btrfs
+ARG DISTRO
+ARG SUITE
+ENV DISTRO=${DISTRO}
+ENV SUITE=${SUITE}
+
+RUN yum install -y rpm-build rpmlint libarchive yum-utils
+COPY SPECS /root/rpmbuild/SPECS
+
+# TODO change once we support scan-plugin on other architectures
+RUN \
+  if [ "$(uname -m)" = "x86_64" ]; then \
+    yum-builddep --define '_without_btrfs 1' -y /root/rpmbuild/SPECS/*.spec; \
+  else \
+    yum-builddep --define '_without_btrfs 1' -y /root/rpmbuild/SPECS/docker-c*.spec; \
+    yum-builddep --define '_without_btrfs 1' -y /root/rpmbuild/SPECS/docker-b*.spec; \
+  fi
+
+COPY --from=golang /usr/local/go /usr/local/go
+WORKDIR /root/rpmbuild
+ENTRYPOINT ["/bin/rpmbuild"]

rpm/rhel-9/Dockerfile

@@ -0,0 +1,34 @@
+ARG GO_IMAGE
+ARG DISTRO=rhel
+ARG SUITE=9
+ARG BUILD_IMAGE=dockereng/${DISTRO}:${SUITE}-s390x
+
+FROM ${GO_IMAGE} AS golang
+
+FROM ${BUILD_IMAGE}
+ENV GOPROXY=https://proxy.golang.org|direct
+ENV GO111MODULE=off
+ENV GOPATH=/go
+ENV PATH $PATH:/usr/local/go/bin:$GOPATH/bin
+ENV AUTO_GOPATH 1
+ENV DOCKER_BUILDTAGS exclude_graphdriver_btrfs
+ARG DISTRO
+ARG SUITE
+ENV DISTRO=${DISTRO}
+ENV SUITE=${SUITE}
+
+RUN yum install -y rpm-build rpmlint libarchive yum-utils
+COPY SPECS /root/rpmbuild/SPECS
+
+# TODO change once we support scan-plugin on other architectures
+RUN \
+  if [ "$(uname -m)" = "x86_64" ]; then \
+    yum-builddep --define '_without_btrfs 1' -y /root/rpmbuild/SPECS/*.spec; \
+  else \
+    yum-builddep --define '_without_btrfs 1' -y /root/rpmbuild/SPECS/docker-c*.spec; \
+    yum-builddep --define '_without_btrfs 1' -y /root/rpmbuild/SPECS/docker-b*.spec; \
+  fi
+
+COPY --from=golang /usr/local/go /usr/local/go
+WORKDIR /root/rpmbuild
+ENTRYPOINT ["/bin/rpmbuild"]