GRPCRoute.spec.rules[].backendRefs[].kind

Kind is the Kubernetes resource kind of the referent. For example "Service". Defaults to "Service" when not specified. ExternalName services can refer to CNAME DNS records that may live outside of the cluster and as such are difficult to reason about in terms of conformance. They also may not be safe to forward to (see CVE-2021-25740 for more information). Implementations SHOULD NOT support ExternalName Services. Support: Core (Services with a type other than ExternalName) Support: Implementation-specific (Services with type ExternalName)

• default: "Service"
• minLength: 1
• maxLength: 63
• pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$