Tweaking the examples for demos

mongodb/Dockerfile

@@ -6,6 +6,7 @@ MAINTAINER Kimbro Staken
 RUN apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10
 RUN echo "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen" | tee -a /etc/apt/sources.list.d/10gen.list
 RUN apt-get update
+RUN apt-get -y install apt-utils
 RUN apt-get -y install mongodb-10gen
 
 #RUN echo "" >> /etc/mongodb.conf

nodejs/Dockerfile

@@ -5,7 +5,8 @@ RUN apt-get install -y python-software-properties python
 RUN add-apt-repository ppa:chris-lea/node.js
 RUN echo "deb http://us.archive.ubuntu.com/ubuntu/ precise universe" >> /etc/apt/sources.list
 RUN apt-get update
-RUN apt-get install -y nodejs 
+RUN apt-get install -y nodejs
+#RUN apt-get install -y nodejs=0.6.12~dfsg1-1ubuntu1
 RUN mkdir /var/www
 
 ADD app.js /var/www/app.js

nodejs/app.js

@@ -4,7 +4,11 @@ var http = require('http');
 // Configure our HTTP server to respond with Hello World to all requests.
 var server = http.createServer(function (request, response) {
   response.writeHead(200, {"Content-Type": "text/plain"});
-  response.end("Hello from Docker\n");
+  text = "Running Node.js:" + process.versions.node
+  text += "Mongo Servers: " + process.env.MONGODB
+
+  response.end(text);
+
 });
 
 var port = process.env.PORT || 8080;