add arm support for sonobuoy (#491)

Signed-off-by: Bin Lu <bin.lu@arm.com>

Dockerfile

@@ -12,11 +12,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.10-alpine
+FROM BASEIMAGE
 MAINTAINER Timothy St. Clair "tstclair@heptio.com"
 
-RUN apk add --no-cache ca-certificates bash
-ADD sonobuoy /sonobuoy
+CMD1
+
+ADD BINARY /sonobuoy
 ADD scripts/run_master.sh /run_master.sh
 ADD scripts/run_single_node_worker.sh /run_single_node_worker.sh
 WORKDIR /

Makefile

@@ -12,13 +12,21 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+EMPTY :=
+SPACE := $(EMPTY) $(EMPTY)
+COMMA := $(EMPTY),$(EMPTY)
 
+BINARY = sonobuoy
 TARGET = sonobuoy
 GOTARGET = github.com/heptio/$(TARGET)
+GOPATH = $(shell go env GOPATH)
 REGISTRY ?= gcr.io/heptio-images
 IMAGE = $(REGISTRY)/$(TARGET)
 DIR := ${CURDIR}
 DOCKER ?= docker
+LINUX_ARCH := amd64 arm64
+DOCKERFILE :=
+PLATFORMS := $(subst $(SPACE),$(COMMA),$(foreach arch,$(LINUX_ARCH),linux/$(arch)))
 
 GIT_VERSION ?= $(shell git describe --always --dirty)
 IMAGE_VERSION ?= $(shell git describe --always --dirty)
@@ -30,8 +38,6 @@ VERBOSE_FLAG = -v
 endif
 BUILDMNT = /go/src/$(GOTARGET)
 BUILD_IMAGE ?= golang:1.10-alpine
-BUILDCMD = CGO_ENABLED=0 go build -o $(TARGET) $(VERBOSE_FLAG) -ldflags "-X github.com/heptio/sonobuoy/pkg/buildinfo.Version=$(GIT_VERSION)"
-BUILD = $(BUILDCMD) $(GOTARGET)
 
 TESTARGS ?= $(VERBOSE_FLAG) -timeout 60s
 TEST_PKGS ?= $(GOTARGET)/cmd/... $(GOTARGET)/pkg/...
@@ -71,17 +77,48 @@ lint:
 vet:
 	$(DOCKER_BUILD) '$(VET)'
 
-container: sonobuoy
+pre:
+	go get github.com/estesp/manifest-tool
+
+build_container:
 	$(DOCKER) build \
-		-t $(REGISTRY)/$(TARGET):$(IMAGE_VERSION) \
-		-t $(REGISTRY)/$(TARGET):$(IMAGE_BRANCH) \
-		-t $(REGISTRY)/$(TARGET):$(GIT_REF) \
+       -t $(REGISTRY)/$(TARGET):$(IMAGE_VERSION) \
+       -t $(REGISTRY)/$(TARGET):$(IMAGE_BRANCH) \
+       -t $(REGISTRY)/$(TARGET):$(GIT_REF) \
+       -f $(DOCKERFILE) \
 		.
 
-sonobuoy:
-	$(DOCKER_BUILD) '$(BUILD)'
+container: sonobuoy
+	for arch in $(LINUX_ARCH); do \
+		if [ $$arch = amd64 ]; then \
+			sed -e 's|BASEIMAGE|alpine:3.7|g' \
+			-e 's|CMD1|RUN apk add --no-cache ca-certificates bash|g' \
+			-e 's|BINARY|build/linux/amd64/sonobuoy|g' Dockerfile > Dockerfile-$$arch; \
+			$(MAKE) build_container DOCKERFILE=Dockerfile-$$arch; \
+			$(MAKE) build_container DOCKERFILE="Dockerfile-$$arch" TARGET="sonobuoy-$$arch"; \
+	elif [ $$arch = arm64 ]; then \
+			sed -e 's|BASEIMAGE|arm64v8/ubuntu:16.04|g' \
+			-e 's|CMD1||g' \
+			-e 's|BINARY|build/linux/arm64/sonobuoy|g' Dockerfile > Dockerfile-$$arch; \
+			$(MAKE) build_container DOCKERFILE="Dockerfile-$$arch" TARGET="sonobuoy-$$arch"; \
+		else \
+			echo "ARCH unknown"; \
+        fi \
+	done
+
+build_sonobuoy:
+	$(DOCKER_BUILD) 'CGO_ENABLED=0 $(SYSTEM) go build -o $(BINARY) $(VERBOSE_FLAG) -ldflags="-s -w -X github.com/heptio/sonobuoy/pkg/buildinfo.Version=$(GIT_VERSION)" $(GOTARGET)'
 
-push:
+sonobuoy:
+	for arch in $(LINUX_ARCH); do \
+		mkdir -p build/linux/$$arch; \
+		echo Building: linux/$$arch; \
+		$(MAKE) build_sonobuoy SYSTEM="GOOS=linux GOARCH=$$arch" BINARY="build/linux/$$arch/sonobuoy"; \
+	done
+	@echo Building: host
+	make build_sonobuoy
+
+push_images:
 	$(DOCKER) push $(REGISTRY)/$(TARGET):$(IMAGE_BRANCH)
 	$(DOCKER) push $(REGISTRY)/$(TARGET):$(GIT_REF)
 	if git describe --tags --exact-match >/dev/null 2>&1; \
@@ -91,6 +128,31 @@ push:
 		$(DOCKER) push $(REGISTRY)/$(TARGET):latest; \
 	fi
 
+push_manifest:
+	$(GOPATH)/bin/manifest-tool -username oauth2accesstoken --password "`gcloud auth print-access-token`" push from-args --platforms $(PLATFORMS) --template $(REGISTRY)/$(TARGET)-ARCH:$(VERSION) --target  $(REGISTRY)/$(TARGET):$(VERSION)
+
+push: pre container
+	for arch in $(LINUX_ARCH); do \
+		$(MAKE) push_images TARGET="sonobuoy-$$arch"; \
+	done
+
+	$(MAKE) push_manifest VERSION=$(IMAGE_BRANCH) TARGET="sonobuoy"
+	$(MAKE) push_manifest VERSION=$(GIT_REF) TARGET="sonobuoy"
+
+	if git describe --tags --exact-match >/dev/null 2>&1; \
+	then \
+		$(MAKE) push_manifest VERSION=$(IMAGE_VERSION) TARGET="sonobuoy"; \
+		$(MAKE) push_manifest VERSION=latest TARGET="sonobuoy"; \
+	fi
+
+clean_image:
+	$(DOCKER) rmi -f `$(DOCKER) images $(REGISTRY)/$(TARGET) -a -q` || true
+
 clean:
 	rm -f $(TARGET)
-	$(DOCKER) rmi $(REGISTRY)/$(TARGET) || true
+	rm -f Dockerfile-*
+	rm -rf build
+
+	for arch in $(LINUX_ARCH); do \
+		$(MAKE) clean_image TARGET=$(TARGET)-$$arch; \
+	done