add better generate

Signed-off-by: Jess Frazelle <acidburn@microsoft.com>

vendor/github.com/genuinetools/reg/Dockerfile

@@ -0,0 +1,32 @@
+FROM golang:alpine as builder
+MAINTAINER Jessica Frazelle <jess@linux.com>
+
+ENV PATH /go/bin:/usr/local/go/bin:$PATH
+ENV GOPATH /go
+
+RUN	apk add --no-cache \
+	ca-certificates
+
+COPY . /go/src/github.com/genuinetools/reg
+
+RUN set -x \
+	&& apk add --no-cache --virtual .build-deps \
+		git \
+		gcc \
+		libc-dev \
+		libgcc \
+		make \
+	&& cd /go/src/github.com/genuinetools/reg \
+	&& make static \
+	&& mv reg /usr/bin/reg \
+	&& apk del .build-deps \
+	&& rm -rf /go \
+	&& echo "Build complete."
+
+FROM scratch
+
+COPY --from=builder /usr/bin/reg /usr/bin/reg
+COPY --from=builder /etc/ssl/certs/ /etc/ssl/certs
+
+ENTRYPOINT [ "reg" ]
+CMD [ "--help" ]