add build file

Dockerfile

@@ -0,0 +1,13 @@
+FROM golang:1.12-alpine as builder
+WORKDIR /data
+COPY . .
+RUN apk add --no-cache make git ca-certificates \
+  make
+
+FROM alpine:latest
+RUN apk add --no-cache ca-certificates
+WORKDIR /data
+COPY --from=stage /data/ddns-svc /usr/bin
+COPY config.default.yml config.yml
+EXPOSE 10230
+CMD ["/usr/bin/ddns-svc", "-f", "/data/config.yml"]

Makefile

@@ -0,0 +1,7 @@
+.PHONY: clean build
+
+build:
+	GOOS=linux go build -o ddns-svc -ldflags "-s -w" .
+
+clean:
+	rm -rf ddns-svc && go clean