Spotter

A command-line tool for AWS EC2 Spot Instance Advisor. Spotter helps you find the most cost-effective and reliable spot instances across AWS regions.

Features

• 🔍 View spot instance interruption rates and savings percentages
• 🌐 Support for all AWS regions
• 🔎 Filter by instance type, family, or size
• 📊 Tabular output for easy comparison

Installation

From homebrew

brew install kohbis/spotter/spotter

From Crates.io

cargo install spotter

From Source

git clone https://github.com/kohbis/spotter.git
cd spotter
cargo install --path .

Usage

Basic Usage

# Show spot instance information for the default region (us-east-1)
spotter

# Show spot instance information for a specific region
spotter --region ap-northeast-1

Filtering by Instance Type

# Filter by instance family
spotter --instance-type m5

# Filter by instance size
spotter --instance-type large

# Filter by specific instance type
spotter --instance-type m5.large

Show Spot Prices

[!WARNING] For the latest and exact spot prices, check AWS management console.

# Include spot prices for Linux and Windows
spotter --spot-price

Help

spotter --help

Example Output

+---------------+--------------+-------------------+-----------+-------+------------------+--------------------+---------+
| Instance Type | Region       | Interruption Rate | Memory GB | Cores | Linux Spot Price | Windows Spot Price | Savings |
+---------------+--------------+-------------------+-----------+-------+------------------+--------------------+---------+
| c5.large      | us-east-1    | < 5%              | 4.0       | 2     | 0.0431           | 0.1431             | 72%     |
| m5.large      | us-east-1    | 5-10%             | 8.0       | 2     | 0.0452           | 0.1452             | 68%     |
| r5.large      | us-east-1    | < 5%              | 16.0      | 2     | 0.0595           | 0.1595             | 70%     |
+---------------+--------------+-------------------+-----------+-------+------------------+--------------------+---------+

How It Works

Spotter fetches data from two AWS sources:

1. Spot Advisor Data: Provides information about interruption rates and savings percentages
2. Spot Price Data: Provides current spot prices for different instance types

The tool combines this information to give you a comprehensive view of spot instances, helping you make informed decisions about which instances to use for your workloads.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Author

kohbis