nyl

Nyl is a versatile tool for generating Kubernetes manifests from a simple YAML configuration, encouraging consistent and reusable deployment configurations, project layouts and operational workflows.

Installation

Requires Python 3.11 or newer.

$ uvx nyl

For some features, additional programs must be available:

• kubectl for most operations
• kyverno when using the Nyl PostProcessor resource
• sops when using the SOPS secrets provider

You can install Nyl with Nix to ensure all dependencies are met.

Local development

Install the project with Uv.

$ uv sync

To lint, run

$ nix flake check

And to format code, run

$ nix fmt

To build or serve the documentation, run

$ nix run .#docs serve
$ nix run .#docs build

respectively.

Tracking upstream information

• Discussion around ArgoCD supporting Helm lookups (maybe with Project-level service account?), see argoproj/argo-cd#5202 (comment)