Dockerfile for RaspberryPi is added.

Dockerfile.rpi

@@ -0,0 +1,22 @@
+FROM sander85/rpi-alpine:latest
+MAINTAINER roemer.jp@gmail.com, raxetul@gmail.com
+
+# Install system utils & Gogs runtime dependencies
+ADD https://github.com/tianon/gosu/releases/download/1.6/gosu-armhf /usr/sbin/gosu
+RUN echo "@edge http://dl-4.alpinelinux.org/alpine/edge/main" | tee -a /etc/apk/repositories \
+ && echo "@community http://dl-4.alpinelinux.org/alpine/edge/community" | tee -a /etc/apk/repositories \
+ && apk -U --no-progress upgrade \
+ && apk -U --no-progress add ca-certificates bash git linux-pam s6@edge curl openssh socat \
+ && chmod +x /usr/sbin/gosu
+
+ENV GOGS_CUSTOM /data/gogs
+
+COPY . /app/gogs/
+WORKDIR /app/gogs/
+RUN ./docker/build.sh
+
+# Configure Docker Container
+VOLUME ["/data"]
+EXPOSE 22 3000
+ENTRYPOINT ["docker/start.sh"]
+CMD ["/usr/bin/s6-svscan", "/app/gogs/docker/s6/"]