Merge pull request #11 from dragonchaser/add_arm_for_autobuild

add arm dockerfile for dockerhub autobuild

docker/Dockerfile

@@ -1,4 +1,5 @@
 FROM ruby:latest
+
 LABEL maintainer="dragonchaser <[email protected]>"
 EXPOSE 4567
 RUN git clone https://github.com/dragonchaser/maptool /maptool

docker/Dockerfile.arm23v7

@@ -0,0 +1,8 @@
+FROM ruby:latest
+COPY qemu-arm-static /usr/bin
+LABEL maintainer="dragonchaser <[email protected]>"
+EXPOSE 4567
+RUN git clone https://github.com/dragonchaser/maptool /maptool
+WORKDIR /maptool
+RUN bundle install
+CMD ["ruby", "app.rb"]

docker/hooks/post_checkout

@@ -0,0 +1,2 @@
+#!/bin/bash
+curl -L https://github.com/balena-io/qemu/releases/download/v3.0.0%2Bresin/qemu-3.0.0+resin-arm.tar.gz | tar zxvf - -C . && mv qemu-3.0.0+resin-arm/qemu-arm-static . && pwd && ls

docker/hooks/pre_build

@@ -0,0 +1,4 @@
+#!/bin/bash
+#register qemu-*-static for all supported processors except the 
+# current one, but also remove all registered binfmt_misc before
+docker run --rm --privileged multiarch/qemu-user-static:register --reset