To deploy the site, you must authenticate yourself against the AWS API with your AWS credentials. Get your AWS access key and secret and add them to `~/.aws/credentials`:
```
[default]
aws_access_key_id = <YOUR_ACCESS_KEY_ID>
aws_secret_access_key = <YOUR_SECRET_ACCESS_KEY>
```
This is all that is needed to authenticate with AWS if you've setup your credentials as the default profile.
If you've set them up as another profile, say `[bigchain]` you can grab those credentials by using the `AWS_PROFILE` variable like so:
In case that you get authentication errors or need an alternative way to authenticate with AWS, check out the [AWS documentation](http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html).