aws-instance-metadata

A utility for retrieving the desired AWS EC2 instance metadata from a running instance


Keywords
aws, ec2, instance, metadata, corgi-tag
License
MIT
Install
npm install aws-instance-metadata@2.1.2

Documentation

aws-instance-metadata

This module is used to retrieve a piece of metadata for a running AWS EC2 instance. It returns takes a callback in order to return the data.

Install

$ npm install aws-instance-metadata

or

$ npm install aws-instance-metadata --save

Usage

When using raven.js, it's common to add server level information for debugging purposes. We can use aws-instance-metadata to do just that. In order to tag all future error messages with the instance ID, we could do:

const raven = require('raven').Client(/* configuration omitted */);
const awsInstanceMetadata = require('aws-instance-metadata');

awsInstanceMetadata.fetch('instance-id').then((instanceId) => {
  raven.setTagsContext({
    instanceId: instanceId
  });
}, console.error);