Dockerize hastebin

Dockerfile

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+FROM ubuntu:12.04
+
+RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
+RUN apt-get update
+RUN apt-get -y install python-software-properties build-essential
+RUN add-apt-repository -y ppa:chris-lea/node.js
+RUN apt-get update
+RUN apt-get -y install nodejs
+
+WORKDIR /opt/app
+ADD . /opt/app
+
+ENV NODE_ENV docker
+
+RUN npm install --production
+
+EXPOSE 7777
+
+ENTRYPOINT ["node"]
+
+CMD ["server.js"]