ec2instancespricing.py

Written by Eran Sandler (@erans)
http://eran.sandler.co.il
http://forecastcloudy.net (@forecastcloudy)

ec2instancespricing.py is a quick & dirty library and a command line interface (CLI) to get a list of all Amazon Web Services EC2 instances pricing including On-Demand, Spot and Reserved instances (in all utilization levels).

The data is based on a set of JSON files used in the EC2 page (http://aws.amazon.com/ec2). You can get a list of all available JSON files in this blog post: http://forecastcloudy.net/2012/04/02/amazon-web-services-aws-ec2-pricing-data/

The original JSON files as published by Amazon don't contain the same values used throughout the EC2 API. This library/cli maps the values in the JSON files to their corresponding values used throughout the EC2 API. Such values include region names, instance type, etc.

Data can be filtered by region, instance_type, instance_type_pattern and os_type.

Importing this file will allow you to use two functions:

• get_ec2_ondemand_instances_prices - to get the pricing of On-Demand instances
• get_ec2_reserved_instaces_prices - to get the pricing of reserved instances (in all utilization levels)
• get_ec2_spot_instaces_prices - to get the pricing of spot instances

Running this file will activate its CLI interface in which you can get output to your console in a CSV, JSON, line and table formats (default is table).

To run the command line interface, you need to install:

• argparse - if you are running Python < 2.7
• prettytable - to get a nice table output to your console
• demjson - for easier JSON parsing

All of these libraries can be installed using the 'pip install' command.

There are the following types of listings:

• ondemand - listing of ondemand instance prices
• reserved - listing of reserved instance prices
• spot - listing of spot instance prices
• spotordemand - listing of spot and ondemand instance prices
• all - listing of ondemand, reserved and spot instance prices