Need to validate your Kubernetes configuration and do it fast? Try this tool in your CI or locally.

Kubeconform is a K8s manifest validator inspired by kubeval (which hasn’t been developed for years). It validates your manifests against official Kubernetes OpenAPI specifications and focuses on being highly performant. Here are some of its features:

- Adjustable strictness considering missing schemas, additional properties (not in the schema), and duplicated keys;
- A configurable set of kinds (or GVKs) to ignore or reject, file paths to ignore;
- Schemas caching and adjustable number of concurrent goroutines;
- Various output formats (including text, JSON, and JUnit);
- Support for multiple schema locations to validate CRDs (CustomResourceDefinitions) and OpenShift schemas;
- Ready-to-use CI integrations for GitHub Actions and GitLab;
- Installable via Golang package manager, Homebrew, and winget (Windows). Helm charts are also available.

▶️ GitHub repo

➕ A few related repos from various contributors:
- kubeconform-helm is a set of tools to test Helm chats with kubeconform
- helm-kubeconform is a kubeconform Helm plugin
- helm-kubeconform-action is a GitHub Action to validate Helm charts with kubeconform
- kustomize-plugin-kubeconform is a kubeconform plugin to validate manifests schema within Kusomize

#tools