Update: Enable arm64 kfctl binary build and fix docker build error (k…

…ubeflow#349)

1. Adds support for building and releasing arm64 kfctl binary.
   Note: This updated PR used a safer support method without
   changing current building targets and release names.
2. Fixes building error for target `build-kfctl-container`
when executing `RUN go mod download` by upgrading the Golang
version to v1.13.7.
3. Only installing google-cloud on x86_64 machines.

Signed-off-by: Henry Wang <[email protected]>

Dockerfile

@@ -1,7 +1,7 @@
 #**********************************************************************
 # Builder
 # Create a go runtime suitable for building and testing kfctl
-ARG GOLANG_VERSION=1.12.7
+ARG GOLANG_VERSION=1.13.7
 FROM golang:$GOLANG_VERSION as builder
 
 ARG BRANCH=master
@@ -14,11 +14,12 @@ RUN apt-get install -y git unzip jq vim
 RUN go get -u github.com/jstemmer/go-junit-report
 
 # We need gcloud to get gke credentials.
-RUN \
-    cd /tmp && \
-    wget -nv https://dl.google.com/dl/cloudsdk/release/install_google_cloud_sdk.bash && \
-    chmod +x install_google_cloud_sdk.bash && \
-    ./install_google_cloud_sdk.bash --disable-prompts --install-dir=/opt/
+RUN if [ "$(uname -m)" = "x86_64" ]; then \
+        cd /tmp && \
+        wget -nv https://dl.google.com/dl/cloudsdk/release/install_google_cloud_sdk.bash && \
+        chmod +x install_google_cloud_sdk.bash && \
+        ./install_google_cloud_sdk.bash --disable-prompts --install-dir=/opt/; \
+    fi
 
 ENV PATH /go/bin:/usr/local/go/bin:/opt/google-cloud-sdk/bin:${PATH}
 
@@ -49,7 +50,10 @@ COPY . .
 #
 FROM builder as kfctl_base
 
-RUN make build-kfctl
+RUN make build-kfctl && \
+    if [ "$(uname -m)" = "aarch64" ]; then \
+        cp bin/arm64/kfctl bin/kfctl; \
+    fi
 
 #**********************************************************************
 #

Makefile

@@ -13,7 +13,7 @@
 # limitations under the License.
 #
 GCLOUD_PROJECT ?= kubeflow-images-public
-GOLANG_VERSION ?= 1.12.7
+GOLANG_VERSION ?= 1.13.7
 GOPATH ?= $(HOME)/go
 # To build without the cache set the environment variable
 # export DOCKER_BUILD_OPTS=--no-cache
@@ -126,22 +126,24 @@ build: build-kfctl
 
 build-kfctl: deepcopy generate fmt vet
 	# TODO(swiftdiaries): figure out import conflict errors for windows
-	#GOOS=windows GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/windows/kfctl.exe cmd/kfctl/main.go
-	GOOS=darwin GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=${TAG}" -o bin/darwin/kfctl cmd/kfctl/main.go
-	GOOS=linux GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/linux/kfctl cmd/kfctl/main.go
+	#CGO_ENABLED=0 GOOS=windows GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/windows/kfctl.exe cmd/kfctl/main.go
+	CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=${TAG}" -o bin/darwin/kfctl cmd/kfctl/main.go
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/linux/kfctl cmd/kfctl/main.go
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/arm64/kfctl cmd/kfctl/main.go
 	cp bin/$(ARCH)/kfctl bin/kfctl
 
 # Fast rebuilds useful for development.
 # Does not regenerate code; assumes you already ran build-kfctl once.
 build-kfctl-fast: fmt vet
-	GOOS=linux GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/linux/kfctl cmd/kfctl/main.go	
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 ${GO} build -gcflags '-N -l' -ldflags "-X main.VERSION=$(TAG)" -o bin/linux/kfctl cmd/kfctl/main.go
 
 # Release tarballs suitable for upload to GitHub release pages
 build-kfctl-tgz: build-kfctl
 	chmod a+rx ./bin/kfctl
 	rm -f bin/*.tgz
 	cd bin/linux && tar -cvzf kfctl_$(TAG)_linux.tar.gz ./kfctl
 	cd bin/darwin && tar -cvzf kfctl_${TAG}_darwin.tar.gz ./kfctl
+	cd bin/arm64 && tar -cvzf kfctl_${TAG}_arm64.tar.gz ./kfctl
 
 build-and-push-operator: build-operator push-operator
 build-push-update-operator: build-operator push-operator update-operator-image
@@ -190,13 +192,19 @@ push-to-github-release: build-kfctl-tgz
 	    --repo kubeflow \
 	    --tag $(TAG) \
 	    --name "kfctl_$(TAG)_linux.tar.gz" \
-	    --file bin/kfctl_$(TAG)_linux.tar.gz
+	    --file bin/linux/kfctl_$(TAG)_linux.tar.gz
 	github-release upload \
 	    --user kubeflow \
 	    --repo kubeflow \
 	    --tag $(TAG) \
 	    --name "kfctl_$(TAG)_darwin.tar.gz" \
-	    --file bin/kfctl_$(TAG)_darwin.tar.gz
+	    --file bin/darwin/kfctl_$(TAG)_darwin.tar.gz
+	github-release upload \
+            --user kubeflow \
+            --repo kubeflow \
+            --tag $(TAG) \
+            --name "kfctl_$(TAG)_arm64.tar.gz" \
+            --file bin/arm64/kfctl_$(TAG)_arm64.tar.gz
 
 build-kfctl-container:
 	DOCKER_BUILDKIT=1 docker build \