> ## Documentation Index
> Fetch the complete documentation index at: https://datum-4926dda5-docs-api-reference-demo.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Envoy Gateway

> Envoy Gateway extension resources that add implementation-specific traffic and security policy to the Gateway API.

<Note>
  These are the [**Envoy Gateway**](https://gateway.envoyproxy.io/) extension resources in Datum Cloud networking. They build on the [Gateway API](/api/networking/gateway/overview) with implementation-specific policy for traffic behavior and security. For the broader picture, see the [Networking overview](/api/networking/overview).
</Note>

<Warning>
  These resources are part of the `v1alpha1` API and are subject to change. Fields and behavior may change in future releases.
</Warning>

## Identity

|         |                         |
| ------- | ----------------------- |
| Group   | `gateway.envoyproxy.io` |
| Version | `v1alpha1`              |

## Overview

The Envoy Gateway extension resources extend the [Gateway API](/api/networking/gateway/overview) with implementation-specific traffic and security policy. Where the Gateway API defines the portable core of service traffic routing, these resources let you tune how requests are handled and secured on Datum Cloud's Envoy-based data plane.

Most of these resources attach to existing Gateway API objects (such as Gateways and HTTPRoutes) through **target references** — you point the policy at the object it should apply to rather than embedding the configuration inline.

## Resources

| Resource                                                           | Purpose                                                            |
| ------------------------------------------------------------------ | ------------------------------------------------------------------ |
| [Backend](/api/networking/envoy/backend)                           | Defines a routing target that traffic can be sent to.              |
| [BackendTrafficPolicy](/api/networking/envoy/backendtrafficpolicy) | Tunes traffic behavior for a target, such as timeouts and retries. |
| [SecurityPolicy](/api/networking/envoy/securitypolicy)             | Applies authentication and security controls to routes.            |
| [HTTPRouteFilter](/api/networking/envoy/httproutefilter)           | Adds custom HTTP filters to route processing.                      |

## Related

* [Gateway API overview](/api/networking/gateway/overview) — the portable core routing resources these extensions build on.
* [Networking overview](/api/networking/overview) — all Datum Cloud networking resources.