node-js-sample

A barebones Node.js app using Express 4.

Running Locally

Make sure you have Node.js and the Heroku Toolbelt installed.

git clone git@github.com:heroku/node-js-sample.git # or clone your own fork
cd node-js-sample
npm install
npm start

Your app should now be running on localhost:5000.

Deploying to Heroku

heroku create
git push heroku master
heroku open

Build docker image

Go to the directory that has your Dockerfile and run the following command to build the Docker image. The -t flag lets you tag your image so it's easier to find later using the docker images command:

docker build -t <your username>/node-web-app .

Run the image

Running your image with -d runs the container in detached mode, leaving the container running in the background. The -p flag redirects a public port to a private port inside the container. Run the image you previously built:

docker run -p 5000:5000 -d <your username>/node-web-app

Print the output of your app:

# Get container ID
$ docker ps

# Print app output
$ docker logs <container id>

# Example
Running on http://localhost:5000