add clean-registry image

Signed-off-by: Jess Frazelle <me@jessfraz.com>

clean-registry/Dockerfile

@@ -0,0 +1,45 @@
+FROM python:2-alpine
+
+RUN	apk add --no-cache \
+	ca-certificates \
+	bash
+
+# Install google cloud sdk
+# Download clean-registry script
+RUN set -x \
+	&& apk add --no-cache --virtual .build-deps \
+		curl \
+		tar \
+	&& curl -sSL -o /tmp/google-cloud-sdk.tar.gz https://dl.google.com/dl/cloudsdk/release/google-cloud-sdk.tar.gz \
+	&& curl -sSL -o /usr/bin/clean-registry https://raw.githubusercontent.com/jfrazelle/dotfiles/master/bin/clean-registry \
+	&& chmod +x /usr/bin/clean-registry \
+	&& mkdir -p /usr/src/google-cloud-sdk \
+	&& tar -xzf /tmp/google-cloud-sdk.tar.gz -C /usr/src/google-cloud-sdk --strip-components 1 \
+	&& rm /tmp/google-cloud-sdk.tar.gz \
+	&& ( \
+		cd /usr/src/google-cloud-sdk \
+		&& ./install.sh \
+        	--usage-reporting false \
+        	--path-update true \
+	) \
+	&& apk del .build-deps
+
+WORKDIR /root
+ENV PATH $PATH:/usr/src/google-cloud-sdk/bin
+ENV GOPATH /go
+
+# Install reg
+RUN set -x \
+	&& apk add --no-cache --virtual .build-deps \
+		go \
+		git \
+		gcc \
+		libc-dev \
+		libgcc \
+	&& go get github.com/jfrazelle/reg \
+	&& mv ${GOPATH}/bin/reg /usr/bin/reg \
+	&& apk del .build-deps \
+	&& rm -rf /go \
+	&& echo "Build complete."
+
+ENTRYPOINT ["clean-registry"]