Playing with args and hooks for docker hub

Dockerfile

@@ -1,4 +1,7 @@
-FROM golang:latest as builder
+ARG ARCH=CIDEFINED
+ARG GOLANG_VERSION="1.12"
+
+FROM $ARCH/golang:$GOLANG_VERSION-alpine as builder
 WORKDIR /go/src/github.com/olebedev/socks5
 COPY . .
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-s' -o ./socks5

hooks/build

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+for i in arm32v6 arm32v6 arm64v8 amd64;
+  do
+    docker build --build-arg ARCH=$i -t serjs/test:$i .
+    # $IMAGE_NAME .
+  done