add docker support

Author: reneluria

Dockerfile

@@ -0,0 +1,15 @@
+# Simple Dockerfile to execute redis-commander from docker
+# build it with like: docker build -t redis-commander .
+# to run: docker run -d --name redis-commander -p 8081:8081 redis-commander -- --redis-host your-redis-host
+FROM node
+
+RUN mkdir -p /usr/src
+WORKDIR /usr/src
+
+RUN git clone https://github.com/joeferner/redis-commander.git \
+	&& cd redis-commander \
+	&& npm install -g redis-commander
+
+ENTRYPOINT [ "redis-commander" ]
+
+EXPOSE 8081