UPSTREAM: <carry>: Add Dockerfile to buld kube-apiserver for openshif…

…t-install architectures

openshift-hack/images/installer-kube-apiserver-artifacts/Dockerfile.rhel

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+# This Dockerfile builds an image containing Mac and Linux/AMD64 versions of
+# the kube-apiserver layered on top of the cluster-native Linux installer image.
+# The resulting image is used to build the openshift-install binary.
+
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS macbuilder
+ARG TAGS=""
+WORKDIR /go/src/k8s.io/kubernetes
+COPY . .
+ENV KUBE_BUILD_PLATFORMS=darwin/amd64
+ENV KUBE_STATIC_OVERRIDES=kube-apiserver
+RUN make WHAT='cmd/kube-apiserver'
+
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS macarmbuilder
+ARG TAGS=""
+WORKDIR /go/src/k8s.io/kubernetes
+COPY . .
+ENV KUBE_BUILD_PLATFORMS=darwin/arm64
+ENV KUBE_STATIC_OVERRIDES=kube-apiserver
+RUN make WHAT='cmd/kube-apiserver'
+
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS linuxbuilder
+ARG TAGS=""
+WORKDIR /go/src/k8s.io/kubernetes
+COPY . .
+ENV KUBE_BUILD_PLATFORMS=linux/amd64
+ENV KUBE_STATIC_OVERRIDES=kube-apiserver
+RUN make WHAT='cmd/kube-apiserver'
+
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS linuxarmbuilder
+ARG TAGS=""
+WORKDIR /go/src/k8s.io/kubernetes
+COPY . .
+ENV KUBE_BUILD_PLATFORMS=linux/arm64
+ENV KUBE_STATIC_OVERRIDES=kube-apiserver
+RUN make WHAT='cmd/kube-apiserver'
+
+FROM registry.ci.openshift.org/ocp/4.16:base
+COPY --from=macbuilder /go/src/k8s.io/kubernetes/_output/local/bin/darwin/amd64/kube-apiserver /usr/share/openshift/darwin/amd64/kube-apiserver
+COPY --from=macarmbuilder /go/src/k8s.io/kubernetes/_output/local/bin/darwin/arm64/kube-apiserver /usr/share/openshift/darwin/arm64/kube-apiserver
+COPY --from=linuxbuilder /go/src/k8s.io/kubernetes/_output/local/bin/linux/amd64/kube-apiserver /usr/share/openshift/linux/amd64/kube-apiserver
+COPY --from=linuxarmbuilder /go/src/k8s.io/kubernetes/_output/local/bin/linux/arm64/kube-apiserver /usr/share/openshift/linux/arm64/kube-apiserver
+
+# This image is not an operator, it is only used as part of the build pipeline.
+LABEL io.openshift.release.operator=false

openshift-hack/images/installer-kube-apiserver-artifacts/OWNERS

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+reviewers:
+  - JoelSpeed
+  - vincepri
+  - patrickdillon
+  - r4f4
+approvers:
+  - JoelSpeed
+  - vincepri
+  - patrickdillon
+  - r4f4