Dockerfile for making a NaCl-targeting Go build environment

Dockerfile

FROM ubuntu:precise
MAINTAINER JT Olds <hello@jtolds.com>

RUN apt-get update
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y wget unzip ca-certificates python libc6-i386 bzip2 gcc-multilib g++-multilib netbase

RUN mkdir -p /tmp/downloads

RUN wget -O /tmp/downloads/go.tar.gz https://storage.googleapis.com/golang/go1.3.1.src.tar.gz
RUN wget -O /tmp/downloads/nacl.zip http://storage.googleapis.com/nativeclient-mirror/nacl/nacl_sdk/nacl_sdk.zip

# both packages are good citizens and put everything in one subfolder
RUN tar -xzvf /tmp/downloads/go.tar.gz -C /opt
RUN unzip /tmp/downloads/nacl.zip -d /opt

RUN rm -rf /tmp/downloads

RUN cd /opt/nacl_sdk && ./naclsdk update

RUN mkdir -p /opt/gopath/bin
RUN ln -nfs /opt/nacl_sdk/pepper_*/tools/sel_ldr_x86_32 /opt/gopath/bin/sel_ldr_x86_32
RUN ln -nfs /opt/nacl_sdk/pepper_*/tools/sel_ldr_x86_64 /opt/gopath/bin/sel_ldr_x86_64
RUN ln -nfs /opt/go/misc/nacl/go_nacl_amd64p32_exec /opt/gopath/bin/go_nacl_amd64p32_exec
RUN ln -nfs /opt/go/misc/nacl/go_nacl_386_exec /opt/gopath/bin/go_nacl_386_exec

ENV GOROOT /opt/go
ENV GOPATH /opt/gopath
ENV PATH /usr/sbin:/usr/bin:/sbin:/bin:/opt/go/bin:/opt/gopath/bin
ENV GOOS nacl
ENV GOARCH 386

RUN cd /opt/go/src && ./make.bash