Holos – Configure Kubernetes with CUE data structures instead of YAML
Hi HN! I’m excited to share Holos, a Go command line tool we wrote to fill the configuration management gap in Kubernetes. Holos uses CUE to configure software distributed with Helm and Kustomize using a well defined, type safe language eliminating the need to template YAML. You probably know (or are) someone who has suffered with the complexity of plain text YAML templates and merging multiple values.yaml files together to configure software running in Kubernetes. We built Holos so we don’t have to template YAML but we can still integrate software distributed with Helm and Kustomize…
Holos – Configure Kubernetes with CUE data structures instead of YAML launched on December 9, 2024 with 77 votes, #427 of 5,365 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Holos is a Go command-line tool that uses CUE, a typed configuration language, to manage Kubernetes deployments instead of YAML templating. It integrates software distributed through Helm and Kustomize into a unified configuration system, addressing the complexity of managing multiple YAML files and template merging. The tool is designed for engineers working with Kubernetes who want type safety and clarity in their infrastructure configuration.
written from the facts on this page · September 2026
From the sources
Learn how Holos integrates software into a holistic platform.
Holos is a configuration management tool for Kubernetes implementing the rendered manifests pattern . It handles configurations ranging from single resources to multi-cluster platforms across regions. The video below offers a basic overview of Holos by walking you through the tooling gap at the Kubernetes integration layer and demonstrating how to integrate multiple Helm charts using data from CUE. Platform engineers use Holos to generate Kubernetes manifests, both locally and in CI pipelines. The manifests are committed to version control and deployed via GitOps tools like ArgoCD or Flux. Holos integrates seamlessly with existing Helm charts, Kustomize bases, and other version-controlled…from holos.run
In the maker’s words, at launch
Hi HN! I’m excited to share Holos, a Go command line tool we wrote to fill the configuration management gap in Kubernetes. Holos uses CUE to configure software distributed with Helm and Kustomize using a well defined, type safe language eliminating the need to template YAML. You probably know (or are) someone who has…
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Source: Show HN post ↗ · launch text quoted in part
