[update] add Dockerfile

Dockerfile

 FROM golang:1.12-alpine as stage-build
-WORKDIR /go/src/coco
+LABEL stage=stage-build
+WORKDIR /go/src/cocogo
 RUN apk update && apk add git
-RUN export https_proxy=http://192.168.1.9:1087
+ARG https_proxy
+ARG http_proxy
+ENV https_proxy=$https_proxy
+ENV http_proxy=$http_proxy
 RUN go get -u github.com/golang/dep/cmd/dep
 COPY . .
-RUN cd cmd && go build coco.go
+RUN dep ensure -vendor-only && cd cmd && go build coco.go
 
 FROM alpine
 WORKDIR /opt/coco/
-COPY --from=stage-build /go/src/coco/cmd/ /opt/coco/
-CMD ['/opt/coco/coco']
+COPY --from=stage-build /go/src/cocogo/cmd/coco .
+COPY --from=stage-build /go/src/cocogo/cmd/locale .
+RUN  echo > config.yml
+EXPOSE 2222
+CMD ["./coco"]

cmd/Makefile

@@ -33,6 +33,11 @@ darwin:
 	GOOS=darwin GOARCH=amd64 go build -o $(BASEPATH)/$(SOFTWARENAME)-darwin-amd64 $(COCOSRCFILE)
 	tar czvf  $(BASEPATH)/../build/$(SOFTWARENAME)-darwin-amd64.tar.gz $(SOFTWARENAME)-darwin-amd64 locale/ config_example.yml
 
+.PHONY: docker
+docker:
+	@echo "build docker images"
+	docker build -t cocogo --build-arg http_proxy=$(http_proxy) --build-arg https_proxy=$(https_proxy) $(BASEPATH)/../
+
 .PHONY: clean
 clean:
 	-rm -rf $(BASEPATH)/../build