[feature] use buildx to produce multi arch image kubesphere#3683

Signed-off-by: lxm <lxm.xupt@gmail.com>

build/Dockerfile

@@ -0,0 +1,44 @@
+FROM ubuntu:18.04 as binarydownloader
+ARG HELM_VERSION=v3.5.2
+ARG KUSTOMIZE_VERSION=v4.0.5
+ARG KUBE_VERSION=v1.16.4
+ARG ETCD_VERSION=v3.3.11
+RUN apt update && apt -y install wget curl
+ADD ./hack /opt/hack/
+
+RUN bash /opt/hack/build-scripts/get-helm.sh
+RUN bash /opt/hack/build-scripts/get-kustomize.sh
+RUN bash /opt/hack/build-scripts/get-etcd.sh
+RUN bash /opt/hack/build-scripts/get-kubernetes.sh
+
+
+FROM golang:1.13 as builder
+ADD . /opt/kubesphere/
+WORKDIR /opt/kubesphere/
+RUN apt update && apt -y install sudo
+RUN bash /opt/kubesphere/hack/install_kubebuilder.sh
+COPY --from=binarydownloader /usr/local/kubernetes/server/bin/kube-apiserver /usr/local/kubebuilder/bin/kube-apiserver
+COPY --from=binarydownloader /usr/local/kubernetes/server/bin/kubectl /usr/local/kubebuilder/bin/kubectl
+COPY --from=binarydownloader /usr/local/bin/etcd /usr/local/kubebuilder/bin/etcd
+RUN bash -c "source /opt/kubesphere/hack/init_env.sh && make ks-apiserver"
+RUN bash -c "source /opt/kubesphere/hack/init_env.sh && make ks-controller-manager"
+
+
+FROM alpine:3.11 as ks-apiserver
+RUN apk add --no-cache ca-certificates
+COPY --from=binarydownloader /usr/bin/helm /usr/bin/helm
+COPY --from=builder /opt/kubesphere/bin/cmd/ks-apiserver /usr/local/bin/
+
+EXPOSE 9090
+
+CMD ["sh"]
+
+FROM alpine:3.11 as ks-controller-manager
+RUN apk add --no-cache ca-certificates
+COPY --from=binarydownloader /usr/bin/helm /usr/bin/helm
+COPY --from=binarydownloader /usr/bin/kustomize /usr/bin/kustomize
+COPY --from=builder /opt/kubesphere/bin/cmd/controller-manager /usr/local/bin/
+
+EXPOSE 8443 8080
+
+CMD ["sh"]