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exercises/devops/containerize_app.md

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+## Containerize an Application
+
+1. Clone an open source project you would like to containerize. A couple of suggestions:
+
+```
+https://github.com/bregman-arie/node-hello-world
+https://github.com/bregman-arie/flask-hello-world
+```
+
+`git clone https://github.com/bregman-arie/node-hello-world`
+
+2. Write a Dockerfile you'll use for building an image of the application (you can use any base image you would like)
+
+```
+FROM alpine
+LABEL maintainer="your name/email"
+RUN apk add --update nodejs nodejs-npm
+COPY . /src
+WORKDIR /src
+RUN npm install
+EXPOSE 8080
+ENTRYPOINT ["node", "./app.js"]
+```