Update Dockerfile

socks5-proxy/Dockerfile

@@ -14,9 +14,18 @@
 # 1 Build Image #
 #################
 
+ARG GOLANG_VERSION="1.19.1"
+
+FROM golang:$GOLANG_VERSION-alpine as builder
+RUN apk --no-cache add tzdata
+WORKDIR /go/src/github.com/serjs/socks5
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-s' -o ./socks5
+
 ARG BUILD_VERSION
 ARG BUILD_FROM
 FROM ${BUILD_FROM}
+COPY --from=builder /go/src/github.com/serjs/socks5/socks5 /
 
 ##################
 # 2 Modify Image #