awspricing

Python library for AWS pricing.

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==========

awspricing

A Python library for working with the AWS Price List Query API <https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/pricing.html>_.

As of version 2.0.0, awspricing uses boto3 Price List Query API. This requires Price List Query API IAM roles: https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/billing-permissions-ref.html#example-policy-pe-api

Versions before 2.0.0 utilized AWS Price Offer files.

Features:

  • Service-specific helpers (only EC2 and RDS thus far)
  • Local caching support

Installation

.. code-block:: sh

$ pip install awspricing

Usage

.. code-block:: python

import awspricing

ec2_offer = awspricing.offer('AmazonEC2')

ec2_offer.search_skus(
  instance_type='c4.large',
  location='US East (N. Virginia)',
  operating_system='Linux',
)  # {'4C7N4APU9GEUZ6H6', 'MBQPYDJSY3BY84BH', 'MDKVAJXMJGZFDJUE'}

ec2_offer.reserved_hourly(
  'c4.xlarge',
  operating_system='Linux',
  lease_contract_length='3yr',
  offering_class='convertible',
  purchase_option='Partial Upfront',
  region='us-east-1'
)  # 0.10845205479452055

rds_offer = awspricing.offer('AmazonRDS')

rds_offer.search_skus(
  instance_type='db.m4.large',
  location='US East (N. Virginia)',
  database_engine='MySQL',
  license_model='No license required',
  deployment_option='Multi-AZ'
) # {'QPZNR6MYN432XTPU'}

rds_offer.ondemand_hourly(
  'db.m4.large',
  'MySQL',
  license_model='No license required',
  deployment_option='Multi-AZ',
  region='us-east-1'
) # 0.35

..

Note : AWS provides the pricing list in json format with no warranty of format change. If a format change by AWS causes a breaking change; the below mitigation can be used at the cost of "stale" pricing.

.. code-block:: python

import awspricing

# For finding EC2 price list versions see script below or download https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonEC2/index.json
ec2_offer_old = awspricing.offer('AmazonEC2', version='some_other_version')

# For finding RDS price list versions see script below or download https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonRDS/index.json
rds_offer_old = awspricing.offer('AmazonRDS', version='some_other_version')

.. code-block:: sh

$ # EC2
$ curl https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonEC2/index.json | python -m json.tool

$ # RDS
$ curl https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonRDS/index.json | python -m json.tool

Configuration

Cache


Cache can be configured via the following environment variables:

``AWSPRICING_USE_CACHE``: Whether to use a simple file-based cache. Valid values are ``0|1``. Defaults to ``0`` (false).

``AWSPRICING_CACHE_PATH``: Prefix to write cache files. Defaults to ``/tmp/awspricing``.

``AWSPRICING_CACHE_MINUTES``: Number of minutes to keep cache for. Defaults to ``1440`` (1 day).


Developing
----------

Environment setup

Run the following commands (preferably in a virtualenv) to setup your environment:

.. code-block:: sh python setup.py develop pip install -r test-requirements.txt

Running unit tests


Simply run `make test` after environment setup to run unit tests.

Running mypy (type checker)

The following commands can be used to run type checks. Note that a python3 interpreter is required for mypy.

.. code-block:: sh

pip install mypy
make test_mypy

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