+RUN apk add --no-cache --virtual .build-deps build-base go godep curl tar git glide mercurial bash \
+&& mkdir -p $go_install_dir \
+&& curl -fsSL -k https://dl.google.com/go/go${go_version}.src.tar.gz | tar zx --strip-components=1 -C ${go_install_dir} \
+&& cd ${go_install_dir}/src/ \
+&& ./make.bash \