Kustomize
Kubernetes SIG CLI
Kustomize is a declarative configuration customization tool for Kubernetes manifests without using templates. It is aimed at platform teams and developers managing...
Pros
- Uses native Kubernetes YAML without introducing a separate templating language
- Built into kubectl and supported directly by Kubernetes tooling
- Overlays make environment-specific changes explicit and reviewable
Cons
- Less expressive than Helm for complex conditional configuration
- Patch syntax can become difficult to maintain in large repositories
- Provides limited package distribution and dependency management
Free, open source