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Kubernetes Manifest Validator

Quickly lint Kubernetes YAML configs to catch structural errors before running kubectl apply.

YAML Input

Paste YAML and click validate

Kubernetes YAML Manifest Validator

A Kubernetes manifest is a YAML or JSON file declaring the desired state of a cluster resource — Deployment, Service, ConfigMap, Secret, Ingress, etc. kubectl apply -f manifest.yaml reads this file and reconciles the actual cluster state with the declared desired state.

Required Root Keys

  • apiVersion — the API group and version (e.g., apps/v1)
  • kind — the resource type (e.g., Deployment, Service)
  • metadata — holds name, namespace, and labels
  • spec — the desired state configuration (required for most kinds)

FAQ

Does this support multiple resources in one file? Resources separated by --- are common. This linter checks structural integrity of the combined document.

Can it validate Custom Resource Definitions? CRD validation requires the server-side schema. This tool validates standard Kubernetes API resource structure only.

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