add Dockerfile_multiple_build

Dockerfile_multiple_build

@@ -0,0 +1,21 @@
+FROM golang:1.8 as frpBuild
+
+COPY . /go/src/github.com/fatedier/frp
+
+ENV CGO_ENABLED=0
+
+RUN cd /go/src/github.com/fatedier/frp \
+ && make
+
+FROM alpine:3.6
+
+COPY --from=frpBuild /go/src/github.com/fatedier/frp/bin/frpc /
+COPY --from=frpBuild /go/src/github.com/fatedier/frp/conf/frpc.ini /
+COPY --from=frpBuild /go/src/github.com/fatedier/frp/bin/frps /
+COPY --from=frpBuild /go/src/github.com/fatedier/frp/conf/frps.ini /
+
+EXPOSE 80 443 6000 7000 7500
+
+WORKDIR /
+
+CMD ["/frps","-c","frps.ini"]