gateway api v1.2.0 experimental

BackendTLSPolicy.spec.validation.hostname

Hostname is used for two purposes in the connection between Gateways and backends: 1. Hostname MUST be used as the SNI to connect to the backend (RFC 6066). 2. If SubjectAltNames is not specified, Hostname MUST be used for authentication and MUST match the certificate served by the matching backend. Support: Core

BackendTLSPolicy.spec.validation.hostname fields and descriptions
Field / Type	Description
BackendTLSPolicy.spec.validation.hostname `string`	Hostname is used for two purposes in the connection between Gateways and backends: 1. Hostname MUST be used as the SNI to connect to the backend (RFC 6066). 2. If SubjectAltNames is not specified, Hostname MUST be used for authentication and MUST match the certificate served by the matching backend. Support: Core `minLength: 1` `maxLength: 253` `pattern: ^[a-z0-9]([-a-z0-9][a-z0-9])?(\.[a-z0-9]([-a-z0-9][a-z0-9])?)*$`