index
Type
External
Status
Published
Created
Mar 3, 2026
Updated
Apr 30, 2026
Updated by
Dosu Bot
Source
View

The configuration mechanism in dlt provides a flexible, secure way to define credentials to external systems and other settings separately from your code.

Key features#

  1. Separation of secrets and configs from code - The main role of the configuration system is to keep sensitive information out of your source code.

  2. Built-in credentials - dlt provides built-in support for most common systems with default/machine credential access.

  3. Auto-generated configurations - For functions decorated with @dlt.source, @dlt.resource, and @dlt.destination, dlt automatically generates appropriate configuration specs so they behave like built-in configs and credentials.

  4. Comprehensive configurability - Nearly all aspects of dlt are configurable, including pipelines, normalizers, loaders, and logging, allowing you to change behavior without modifying code. This capability enables performance optimization and other adjustments at runtime.