Update Dockerfile to Debian Jessie, enable MessagePack, fix RUN command + add Docker example to README

Dockerfile

@@ -1,14 +1,14 @@
-FROM tianon/debian:wheezy
+FROM debian:jessie
 MAINTAINER Nicolas Favre-Felix <n.favrefelix@gmail.com>
 
-RUN apt-get -y --force-yes install wget make gcc libevent-dev
+RUN apt-get -y update && apt-get -y upgrade && apt-get -y --force-yes install wget make gcc libevent-dev libmsgpack-dev redis-server
-RUN apt-get -y --force-yes install redis-server
+RUN wget https://github.com/nicolasff/webdis/archive/0.1.7.tar.gz -O webdis-0.1.7.tar.gz
-RUN wget --no-check-certificate https://github.com/nicolasff/webdis/archive/0.1.1.tar.gz -O webdis-0.1.1.tar.gz
+RUN tar -xvzf webdis-0.1.7.tar.gz
-RUN tar -xvzf webdis-0.1.1.tar.gz
+RUN cd webdis-0.1.7 && make && make install && cd ..
-RUN cd webdis-0.1.1 && make && make install && cd ..
+RUN rm -rf webdis-0.1.7 webdis-0.1.7.tag.gz
-RUN rm -rf webdis-0.1.1 webdis-0.1.1.tag.gz
+RUN apt-get remove -y wget make gcc libevent-dev libmsgpack-dev
-RUN apt-get remove -y wget make gcc
+RUN sed -i -e 's/"daemonize":.*true,/"daemonize": false,/g' /etc/webdis.prod.json
 
-CMD /etc/init.d/redis-server start && /usr/local/bin/webdis /etc/webdis.prod.json && bash
+CMD /etc/init.d/redis-server start && /usr/local/bin/webdis /etc/webdis.prod.json
 
 EXPOSE 7379

README.markdown

@@ -19,6 +19,24 @@ curl -d "GET/hello" http://127.0.0.1:7379/
 
 </pre>
 
+# Try in Docker
+Clone the repository and open a terminal in the webdis directory, then run:
+<pre>
+$ docker build -t webdis .
+[...]
+
+$ docker run --rm -d -p 7379:7379 webdis
+f0a2763fd456ac1f7ebff80eeafd6a5cd0fc7f06c69d0f7717fb2bdcec65926e
+
+$ curl http://127.0.0.1:7379/PING
+{"PING":[true,"PONG"]}
+
+# To stop it:
+$ docker kill $(docker ps | grep webdis | cut -c 1-12)
+f0a2763fd456
+</pre>
+
+
 # Features
 * `GET` and `POST` are supported, as well as `PUT` for file uploads.
 * JSON output by default, optional JSONP parameter (`?jsonp=myFunction` or `?callback=myFunction`).