Konf

Konf is a configuration management tool written in Go. It provides a flexible and type-safe way to load application settings from various sources, including files, environment variables, and command-line flags. The primary goal of Konf is to simplify the process of managing application configurations, especially in complex or distributed systems.

The tool allows users to define their configuration structure using Go structs. These structs can be annotated with tags to specify how different configuration sources should map to the struct fields. Konf supports multiple file formats such as JSON, YAML, TOML, and INI out of the box, and can be extended to support custom formats. Environment variables can be mapped directly to struct fields, and command-line flags can be used to override settings from files or environment variables.

A key feature of Konf is its ability to merge configurations from multiple sources. This allows for a hierarchical approach where default values can be set in files, overridden by environment variables, and further customized with command-line arguments. Konf also includes validation capabilities, ensuring that the loaded configuration meets predefined requirements before being used by the application. This helps prevent runtime errors caused by invalid or missing settings. The project is open-source and available on GitHub, with ongoing development and community contributions.