fix docker

nodejs/Dockerfile

@@ -1,5 +1,54 @@
 FROM node:4.4-onbuild
 EXPOSE 1207
+
+# Install redis
+# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
+RUN groupadd -r redis && useradd -r -g redis redis
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+		ca-certificates \
+		wget \
+	&& rm -rf /var/lib/apt/lists/*
+
+# grab gosu for easy step-down from root
+ENV GOSU_VERSION 1.7
+RUN set -x \
+	&& wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
+	&& wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
+	&& export GNUPGHOME="$(mktemp -d)" \
+	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
+	&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
+	&& rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
+	&& chmod +x /usr/local/bin/gosu \
+	&& gosu nobody true
+
+ENV REDIS_VERSION 3.0.7
+ENV REDIS_DOWNLOAD_URL http://download.redis.io/releases/redis-3.0.7.tar.gz
+ENV REDIS_DOWNLOAD_SHA1 e56b4b7e033ae8dbf311f9191cf6fdf3ae974d1c
+
+# for redis-sentinel see: http://redis.io/topics/sentinel
+RUN buildDeps='gcc libc6-dev make' \
+	&& set -x \
+	&& apt-get update && apt-get install -y $buildDeps --no-install-recommends \
+	&& rm -rf /var/lib/apt/lists/* \
+	&& wget -O redis.tar.gz "$REDIS_DOWNLOAD_URL" \
+	&& echo "$REDIS_DOWNLOAD_SHA1 *redis.tar.gz" | sha1sum -c - \
+	&& mkdir -p /usr/src/redis \
+	&& tar -xzf redis.tar.gz -C /usr/src/redis --strip-components=1 \
+	&& rm redis.tar.gz \
+	&& make -C /usr/src/redis \
+	&& make -C /usr/src/redis install \
+	&& rm -r /usr/src/redis \
+	&& apt-get purge -y --auto-remove $buildDeps
+
+RUN mkdir /data && chown redis:redis /data
+VOLUME /data
+WORKDIR /data
+
+COPY docker-entrypoint.sh /usr/local/bin/
+RUN ln -s usr/local/bin/docker-entrypoint.sh /entrypoint.sh # backwards compat
+ENTRYPOINT ["docker-entrypoint.sh"]
+
 RUN redis-server
 RUN npm install -g forever
 ENTRYPOINT forever --spinSleepTime 1000 --minUptime 1000 index.js