feat(server): Allow to be run in docker by providing a docker file

.dockerignore

@@ -0,0 +1,5 @@
+node_modules
+.git
+.idea
+*.iml
+*.log

Dockerfile

@@ -0,0 +1,17 @@
+FROM node:0.12
+
+# Create app directory
+RUN mkdir -p /opt/app-root/src
+WORKDIR /opt/app-root/src
+
+
+# Install app dependencies
+COPY package.json /opt/app-root/src
+RUN npm install
+
+# Bundle app source
+COPY . /opt/app-root/src
+
+EXPOSE 8080
+CMD [ "npm", "start" ]
+

README.md

@@ -24,15 +24,20 @@ It couldn't be more simple (but you will need a running  instance of just-drop-i
 
 ## How to run it
 
-### on any computer
-You will need both [npm](https://www.npmjs.com/) and [node.js](https://nodejs.org/) if you want to run it.
-
+### On any computer
+#### With node JS
+Download and install [node.js v0.10](https://nodejs.org/download/release/latest-v0.10.x/). Then:
 * Download the source code
-* run `npm install` to download the needed dependencies 
-* `node server.js` will start node-js server
+* Download the needed dependencies (first time only): `npm install` 
+* Start node-js server: `npm start`
+
+##### With docker
+We provide our own docker image to deploy node js.
+- Build the image (first time): `docker build -t just-drop-it .` (add `--build-arg HTTP_PROXY=http://proxy-host:<proxy-port> --build-arg HTTPS_PROXY=proxy-host:<proxy-port>` if you are running behind a proxy)
+- Run the image (first time): `docker run --name just-drop-it -p 8080:8080 -d  just-drop-it` (next time you will just have to start it with `docker start just-drop-it`)
 
 ### on an openshift instance
-just-drop-it should work on [openshift] (http://openshift.redhat.com/) instances. Juste create a node-js 0.10 app and synchronize its git repository with our.
+just-drop-it should work on [openshift2](http://openshift.redhat.com/) instances. Just create a node-js v0.10 app and synchronize its git repository with our.
 
 ## From a technical point of view
 More details on our implementation, to be updated.