Jsonnet

Jsonnet is an open-source data templating language developed by Google that extends JSON with powerful programming features such as variables, functions, conditionals, object composition, inheritance, and reusable configurations. It is designed to simplify the creation and management of complex configuration files by reducing duplication and improving consistency. Jsonnet is widely useful for generating structured configuration data for applications, deployment systems, infrastructure, and other environments where flexible and maintainable configuration management is required.

• Extends standard JSON with variables, functions, conditionals, and reusable configuration components.
• Supports object composition and inheritance for creating modular and maintainable configurations.
• Reduces configuration duplication by allowing common settings and structures to be reused.
• Generates JSON and other structured configuration outputs from reusable Jsonnet code.
• Provides local bindings and expressions for organizing complex configuration logic.
• Helps manage configurations consistently across applications, environments, and deployment systems.
• Supports automation and scalable configuration management for complex software projects.

Jsonnet usage:

$ sudo su
$ apt update
$ cd /opt/jsonnet
$ source venv/bin/activate

$ Verify installation:
# pip show jsonnet
# python -c "import _jsonnet; print('Jsonnet 0.22.0 installed successfully')"