Makefile build cross-binary

Makefile

@@ -0,0 +1,29 @@
+OS = darwin freebsd linux windows
+ARCHS = 386 amd64
+
+all: build release
+
+build: deps
+	go build
+
+release: clean deps
+	@for arch in $(ARCHS);\
+	do \
+		for os in $(OS);\
+		do \
+			echo "Building $$os-$$arch"; \
+			mkdir -p build/webhook-$$os-$$arch/; \
+			GOOS=$$os GOARCH=$$arch go build -o build/webhook-$$os-$$arch/webhook; \
+			tar cz -C build -f build/webhook-$$os-$$arch.tar.gz webhook-$$os-$$arch; \
+		done \
+	done
+
+test: deps
+	go test ./...
+
+deps:
+	go get -d -v -t ./...
+
+clean:
+	rm -rf build
+	rm -f webhook