Jsonnet
Jsonnet is a domain-specific configuration language that extends JSON by adding features like variables, functions, conditionals, and imports to generate JSON, YAML, or other structured data formats. It is designed to reduce duplication and improve maintainability in configuration files, making it easier to manage complex configurations in applications, infrastructure, and Kubernetes. By allowing reusable templates and modular code, Jsonnet helps developers create cleaner and more scalable configuration setups.
Developers should learn Jsonnet when working with large-scale configuration management, especially in DevOps, cloud infrastructure, or Kubernetes environments where JSON or YAML files become repetitive and hard to maintain. It is particularly useful for generating configuration files dynamically, such as in CI/CD pipelines, to ensure consistency and reduce errors. Use cases include templating Kubernetes manifests, managing application settings across multiple environments, and automating infrastructure-as-code deployments.