Add 'Dockerfile'

Dockerfile

@@ -0,0 +1,14 @@
+FROM golang:1.13-alpine as base
+
+WORKDIR /app
+COPY . .
+RUN go get ./... && go build -o fs-go .
+
+FROM alpine:3.10
+
+VOLUME /data
+WORKDIR /app
+COPY --from=base /app/fs-go .
+EXPOSE 8080
+
+ENTRYPOINT ["/app/fs-go", "-dir", "/data"]