Enable all Linux arches in cli-artifacts

In order for console-operator deployment to succeed, cli-artifacts needs
to be available on all arches for downloads-openshift-console.  However,
in that case, /usr/bin/oc (inherited from cli) is a native binary, and
we want to provide all primary Linux architectures to match those on
mirror.openshift.com.

In order to do so, this provides cross-compiled Linux binaries for
multiple architectures.  Cross-compiling oc fails with gssapi enabled,
therefore it is disabled in the cross builds.

Makefile

@@ -23,6 +23,7 @@ GO_BUILD_PACKAGES :=$(strip \
 GO_BUILD_FLAGS :=-tags 'include_gcs include_oss containers_image_openpgp gssapi'
 GO_BUILD_FLAGS_DARWIN :=-tags 'include_gcs include_oss containers_image_openpgp'
 GO_BUILD_FLAGS_WINDOWS :=-tags 'include_gcs include_oss containers_image_openpgp'
+GO_BUILD_FLAGS_LINUX_CROSS :=-tags 'include_gcs include_oss containers_image_openpgp'
 
 OUTPUT_DIR :=_output
 CROSS_BUILD_BINDIR :=$(OUTPUT_DIR)/bin
@@ -79,7 +80,23 @@ cross-build-windows-amd64:
 	+@GOOS=windows GOARCH=amd64 $(MAKE) --no-print-directory build GO_BUILD_PACKAGES:=./cmd/oc GO_BUILD_FLAGS:="$(GO_BUILD_FLAGS_WINDOWS)" GO_BUILD_BINDIR:=$(CROSS_BUILD_BINDIR)/windows_amd64
 .PHONY: cross-build-windows-amd64
 
-cross-build: cross-build-darwin-amd64 cross-build-windows-amd64
+cross-build-linux-amd64:
+	+@GOOS=linux GOARCH=amd64 $(MAKE) --no-print-directory build GO_BUILD_PACKAGES:=./cmd/oc GO_BUILD_FLAGS:="$(GO_BUILD_FLAGS_LINUX_CROSS)" GO_BUILD_BINDIR:=$(CROSS_BUILD_BINDIR)/linux_amd64
+.PHONY: cross-build-linux-amd64
+
+cross-build-linux-arm64:
+	+@GOOS=linux GOARCH=arm64 $(MAKE) --no-print-directory build GO_BUILD_PACKAGES:=./cmd/oc GO_BUILD_FLAGS:="$(GO_BUILD_FLAGS_LINUX_CROSS)" GO_BUILD_BINDIR:=$(CROSS_BUILD_BINDIR)/linux_arm64
+.PHONY: cross-build-linux-arm64
+
+cross-build-linux-ppc64le:
+	+@GOOS=linux GOARCH=ppc64le $(MAKE) --no-print-directory build GO_BUILD_PACKAGES:=./cmd/oc GO_BUILD_FLAGS:="$(GO_BUILD_FLAGS_LINUX_CROSS)" GO_BUILD_BINDIR:=$(CROSS_BUILD_BINDIR)/linux_ppc64le
+.PHONY: cross-build-linux-ppc64le
+
+cross-build-linux-s390x:
+	+@GOOS=linux GOARCH=s390x $(MAKE) --no-print-directory build GO_BUILD_PACKAGES:=./cmd/oc GO_BUILD_FLAGS:="$(GO_BUILD_FLAGS_LINUX_CROSS)" GO_BUILD_BINDIR:=$(CROSS_BUILD_BINDIR)/linux_s390x
+.PHONY: cross-build-linux-s390x
+
+cross-build: cross-build-darwin-amd64 cross-build-windows-amd64 cross-build-linux-amd64 cross-build-linux-arm64 cross-build-linux-ppc64le cross-build-linux-s390x
 .PHONY: cross-build
 
 clean-cross-build:

images/cli-artifacts/Dockerfile.rhel

@@ -4,11 +4,11 @@ FROM registry.svc.ci.openshift.org/ocp/builder:golang-1.12 AS builder
 WORKDIR /go/src/github.com/openshift/oc
 COPY . .
 RUN yum install -y --setopt=skip_missing_names_on_install=False gpgme-devel libassuan-devel
-RUN make cross-build-darwin-amd64 cross-build-windows-amd64 --warn-undefined-variables
+RUN make cross-build --warn-undefined-variables
 
 FROM registry.svc.ci.openshift.org/ocp/4.2:cli
-COPY --from=builder /go/src/github.com/openshift/oc/_output/bin/darwin_amd64/oc /usr/share/openshift/mac/oc
-COPY --from=builder /go/src/github.com/openshift/oc/_output/bin/windows_amd64/oc.exe /usr/share/openshift/windows/oc.exe
+COPY --from=builder /go/src/github.com/openshift/oc/_output/bin/ /usr/share/openshift/
+RUN mkdir /usr/share/openshift/mac /usr/share/openshift/windows && ln /usr/share/openshift/darwin_amd64/oc /usr/share/openshift/mac/oc && ln /usr/share/openshift/windows_amd64/oc.exe /usr/share/openshift/windows/oc.exe
 LABEL io.k8s.display-name="OpenShift Clients" \
       io.k8s.description="OpenShift is a platform for developing, building, and deploying containerized applications." \
       io.openshift.tags="openshift,cli"

oc.spec

@@ -100,7 +100,7 @@ GOARCH=s390x
 
 %ifarch x86_64
   # Create Binaries for all supported arches
-  %{make} cross-build GO_BUILD_PACKAGES:='./cmd/oc'
+  %{make} cross-build-darwin-amd64 cross-build-windows-amd64 GO_BUILD_PACKAGES:='./cmd/oc'
 %endif
 
 %install