Configuration Module
====================

.. automodule:: credproxy.config
    :members:
    :undoc-members:
    :show-inheritance:

The configuration module handles loading, validation, and management of CredProxy configuration from YAML files and environment variables.

Key Classes
-----------

``Config``
    Main configuration class that loads and validates configuration from files.

``IAMProfileAuthConfig``
    Configuration for IAM profile-based authentication.

``IAMKeysAuthConfig``
    Configuration for IAM access key-based authentication.

``SourceCredentialsConfig``
    Configuration for source AWS credentials.

``AssumedRoleConfig``
    Configuration for AWS role assumption parameters.

``ServiceConfig``
    Configuration for individual services requiring credentials.

Key Functions
-------------

``keyisset(key, data)``
    Check if key exists in dict and return value, raise if missing.

``set_else_none(key, data, default)``
    Get value from dict or return default if not present.