Helm vs Kustomize: When Each Wins

Helm is a package manager; Kustomize is a manifest patcher. The decision rule that matches the right tool to the right need.

Helm

Distributing applications across teams or organisations. Templating, versioning, and dependency management.

Best for shared apps (databases, monitoring agents) where consumers vary configuration.

Kustomize

Applying environment-specific overlays to your own apps. Base + overlay model.

Best for managing your own deployments across dev/staging/prod.

Both

Many production stacks use Helm for third-party charts and Kustomize for in-house apps.

Not mutually exclusive. Pick by use case, not by team allegiance.