dynaconf/dynaconf

Features

• Configuration Unifiers - Aggregates configuration values from multiple files, environment variables, and external stores into a single unified object.
• Configuration Management Libraries - Provides a comprehensive library for loading, merging, and validating application settings from diverse files and environment variables.
• Configuration Value Type Converters - Allows registering user-defined functions to cast and transform configuration values during the loading process.
• Configuration Value Mergers - Combines new dictionary or list values with existing ones using specialized markers or environment prefixes.
• Environment Configuration Profiles - Manages predefined sets of configuration values tailored for specific deployment environments like development or production.
• Environment Variable Config Overrides - Maps environment variables to configuration keys using prefixes and double-underline delimiters for nested values.
• Configuration File Loading - Supports loading a specific set of files before the main configuration to provide base defaults or plugin settings.
• Loading Order Strategies - Controls the sequence of configuration loading by specifying files to preload before or after primary settings.
• Multi-Source Configuration Loaders - Supports user-defined functions to ingest configuration data from external sources like databases or encrypted files.
• Type Casting - Converts string-based system environment variables into complex Python types like integers, booleans, or JSON objects.
• Environment Switching - Allows toggling between different configuration profiles, such as development and production, using a dedicated switcher variable.
• Configuration Fallback Layers - Separates settings into multiple layers like development and production with a designated fallback environment.
• Multi-Source Configuration Loaders - Aggregates application settings from multiple heterogeneous sources including TOML, YAML, JSON, INI, and Python files.
• Multi-Format Configuration Loading - Aggregates configuration data from multiple formats including TOML, YAML, JSON, INI, and ENV.
• Secret Management Integrations - Retrieves sensitive credentials from HashiCorp Vault, Redis, or local secret files to keep them out of version control.
• Secret File Loading - Supports reading sensitive data from dedicated secrets files to ensure credentials remain outside of version control.
• Secrets Management - Enables secure storage of passwords and tokens in local secret files or external vaults to keep them out of version control.
• Application Configuration - Manages application settings across multiple files and environment variables using a defined precedence order.
• Environment Variable-Based Configuration - Provides the ability to map system environment variables to application settings using a configurable global prefix.
• Dot-Notation Value Retrievers - Enables access to nested configuration keys using dot-separated paths for simplified retrieval of complex data.
• Configuration Validation - Executes validation rules immediately after initialization to ensure required settings exist and are correct.
• Configuration Validation Frameworks - Provides a declarative system for enforcing data rules, type constraints, and required keys during configuration loading.
• Declarative Configuration Validation - Enforces data rules using declarative validators to ensure all necessary keys exist and contain valid values.
• Profile Layers - Implements a layered system to separate application settings into distinct profiles such as development and production.
• Conditional Validation Rules - Implements validation rules that run only when specific conditions are met or after other validators pass.
• Redis Configuration Sync - Provides capabilities to read and write configuration variables to Redis hashes for centralized storage.
• Application Default Settings - Provides static or computed values for settings that are missing during the validation process.
• CLI Configuration Automation - Ships a command-line interface for initializing, listing, writing, and exporting application configuration settings.
• Configuration Validation - Provides a CLI capability to enforce rules on settings using constraints like existence and value ranges.
• Fallback Variable Defaults - Retrieves unprefixed system environment variables as a fallback when a specific configuration key is not found.
• Configuration File Generators - Provides utilities to generate initial settings and secrets files in various supported formats.
• Dotenv Loaders - Reads variables from .env files and optionally uses them to override system environment variables.
• Local Configuration Overrides - Reads files matching local glob patterns at the end of the loading sequence for per-user overrides.
• Runtime Setting Controls - Enables prioritizing command-line arguments over files and environment variables to update settings at runtime.
• Configuration File Inclusion Directives - Loads additional configuration files during a post-load process based on relative paths or globs.
• Configuration Source Tracking - Includes utilities to trace the loading history of specific settings to identify the exact source of the final value.
• Configuration Value Modifiers - Allows writing new key-value pairs or secrets directly to configuration sources via the CLI.
• Secret Vault Integrations - Provides connectors to retrieve sensitive configuration and credentials directly from centralized vault services like HashiCorp Vault and Redis.
• Vault Integrations - Integrates with HashiCorp Vault to retrieve secure configuration variables using tokens and AppRole authentication.
• Configuration Data Merging - Combines data structures from different sources using custom separators to define nested keys and indices.
• Configuration String Interpolation - Replaces tokens within configuration strings using templating engines to create dynamic values.
• Configuration Variable Interpolations - Provides a templating system to substitute environment variables or other settings into configuration values.
• Configuration Value Resolvers - Includes a CLI utility to fetch the raw resolved value of a specific configuration key for any environment.
• Value Aliasing - Allows a setting to reference the value of another setting with optional type casting and defaults.
• Prefix-Based Variable Filtering - Isolates a subset of environment variables based on a designated prefix to prevent unrelated variables from leaking into settings.
• Settings Value Post-Processing - Provides the ability to post-process loaded settings using custom callables to cast types or modify values.
• Variable Access Interception - Executes custom functions during value retrieval to load data from external sources or decrypt secrets.
• Web Framework Configuration Integration - Replaces standard configuration objects in Django or Flask with dynamic settings supporting dot notation and overrides.
• Django Integrations - Patches the Django settings module to automatically manage application configurations and provide advanced lookup methods.
• Flask Integrations - Replaces the native Flask configuration object with a dynamic settings instance supporting dot notation and overrides.
• Web Framework Integrations - Provides a unified dynamic settings instance to replace standard configuration objects across various web frameworks.
• Configuration Management - Manages application configuration with framework-specific plugins.
• Package and Dependency Management - Centralized configuration management for Python applications.

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