OpsWorks Instances

OpsWorks Instances is a Node.js script to list EC2 instances from an OpsWorks stack.

Installation

It's recommended that you use npm to install OpsWorks Instances globally:

$ npm install -g opsworks-instances

This will install opsworks-instances and all required dependencies. OpsWorks Instances requires Node.js 4.0.0 or newer.

Usage

Execute opsworks-instances passing an OpsWorks stack name glob:

$ opsworks-instances --all server
┌─────────┬─────────┬─────────┬──────────┬────────────┬────────────────┐
│ Stack   │ Layer   │ Status  │ Hostname │ Instance   │ Private IP     │
├─────────┼─────────┼─────────┼──────────┼────────────┼────────────────┤
│ ServerA │ apps    │ online  │ apps1    │ i-f789ab11 │ 172.19.222.103 │
├─────────┼─────────┼─────────┼──────────┼────────────┼────────────────┤
│ ServerA │ workers │ online  │ workers1 │ i-d68eac22 │ 172.19.222.220 │
├─────────┼─────────┼─────────┼──────────┼────────────┼────────────────┤
│ ServerB │ apps    │ online  │ apps1    │ i-d5306333 │ 172.19.222.121 │
├─────────┼─────────┼─────────┼──────────┼────────────┼────────────────┤
│ ServerA │ apps    │ stopped │ apps2    │ i-a88ba944 │ -              │
├─────────┼─────────┼─────────┼──────────┼────────────┼────────────────┤
│ ServerB │ workers │ stopped │ workers1 │ i-e2376455 │ -              │
└─────────┴─────────┴─────────┴──────────┴────────────┴────────────────┘

You can get a help message by passing the --help parameter:

$ opsworks-instances --help
 
  Usage: opsworks-instances [options] <stack-name>
 
  Options:
 
    -h, --help               output usage information
    -V, --version            output the version number
    -a, --all                list all instances besides those with online status
    -p, --profile [default]  the credential profile to use to authenticate on AWS

Authentication

OpsWorks Instances uses the ~/.aws/credentials file to authenticate to AWS and manage profiles. The syntax is:

[default]
aws_access_key_id=AKIAIOSFODNN7EXAMPLE
aws_secret_access_key=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

[production]
aws_access_key_id=AKIAI44QH8DHBEXAMPLE
aws_secret_access_key=je7MtGbClwBF/2Zp9Utk/h3yCo8nvbEXAMPLEKEY

If you have aws-cli installed, you can create one by executing:

$ aws configure

More information about the credentials file can be found here.

License

The OpsWorks Instances is licensed under the MIT license. See License File for more information.