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Installing Gateway APIs

This feature is released as a tech preview (alpha-quality) and should not be deployed in a production environment.

The Gateway APIs are an upcoming set of Kubernetes APIs developed by Kubernetes SIG-NETWORK. They expand on and refine the concepts introduced by the Ingress APIs. In addition to revised HTTP routing APIs, they provide standardized resources representing gateway configuration and layer 4 (TCP and UDP) routing configuration.

The Gateway APIs are currently a draft standard and are not available by default in Kubernetes installations. To use them, you must install the Gateway APIs resource definitions and admission controller.

Support for Gateway APIs is disabled by default. After installing the APIs, you must enable support for them in Kubernetes Ingress Controller:

kubectl set env -n kong deployment/ingress-kong CONTROLLER_FEATURE_GATES="Gateway=true" -c ingress-controller

Response:

deployment.apps/ingress-kong env updated

Using alpha APIs

This feature is released as a tech preview (alpha-quality) and should not be deployed in a production environment.

Layer 4 routes (TCPRoute, UDPRoute, TLSRoute) are currently only available in the Gateway APIs experimental channel.

These APIs require version 2.6 or later. To use them on a supported version, install the experimental channel CRDs and enable the corresponding feature gate in Kubernetes Ingress Controller:

kubectl set env -n kong deployment/ingress-kong CONTROLLER_FEATURE_GATES="GatewayAlpha=true" -c ingress-controller

Response:

deployment.apps/ingress-kong env updated

If you also use other feature gates, include them as well. The command above replaces the entire CONTROLLER_FEATURE_GATES value.