Amazon EC2 - Install node application on EC2 instance.

Before working on this blog you must have the EC2 environment setup. Refer to my older blogs for the same.

• Setup AWS EC2 instance - http://javaredhot.blogspot.com/2016/02/amazon-ec2-creating-and-setting-up.html
• Setup Git, Node.js and NPM on EC2 - http://javaredhot.blogspot.com/2016/02/amazon-aws-installing-git-nodejs-and.html

Get your project

Use git to download your node.js application. 

I have my application on Github - https://github.com/tuhingupta/gitwebhooks

$ git clone https://github.com/tuhingupta/gitwebhooks.git

$ cd gitwebhooks

Configure EC2 to listen inbound traffic at 8080

Somethings need to be configured in your application so that it can be accessed over internet.

Have your node.js application run server over port 8080

In my application (gitwebhooks) above I have set it in app.js

app.set('port', process.env.PORT || 8080);

Now configure your EC2 instance to listen inbound traffic at port 8080

Setup your security groups in EC2 like image below:

Now route HTTP traffic on port 80 to redirect to port 8080

$ sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to 8080

Access your application from internet

Now you can access your application over internet using your public DNS.

I can access my application (a Node.js Express REST API) using:

http://ec2-{my_ec2_id}.us-west-2.compute.amazonaws.com/api/name