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Update envoy-tutorial-istio.md #6896

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Aug 2, 2024
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Update envoy-tutorial-istio.md #6896

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4 changes: 3 additions & 1 deletion docs/content/envoy-tutorial-istio.md
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Expand Up @@ -143,12 +143,14 @@ data:
- name: opa-ext-authz-grpc
envoyExtAuthzGrpc:
service: opa-ext-authz-grpc.local
port: "9191"
port: 9191
```

See [the Istio Docs for AuthorizationPolicy](https://istio.io/latest/docs/tasks/security/authorization/authz-custom/#define-the-external-authorizer) for
more details.

The format of the service value is [<Namespace>/]<Hostname>. The specification of <Namespace> is required only when it is insufficient to unambiguously resolve a service in the service registry. See also the [configuration documentation](https://istio.io/latest/docs/reference/config/istio.mesh.v1alpha1/#MeshConfig-ExtensionProvider-EnvoyExternalAuthorizationGrpcProvider). Example: “opa-ext-authz-grpc.foo.svc.cluster.local” or “bar/opa-ext-authz-grpc.local”.

### 3. Enable automatic injection of the Istio Proxy and OPA-Envoy sidecars in the namespace where the app will be deployed, e.g., `default`

```bash
Expand Down