document provider specific configurations

Signed-off-by: greg pereira <[email protected]>

Author: Gregory-Pereira

config/charts/inferencepool/README.md

@@ -123,8 +123,33 @@ The following table list the configurable parameters of the chart.
 | `inferenceExtension.extraContainerPorts`    | List of additional container ports to expose. Defaults to `[]`.                                                        |
 | `inferenceExtension.extraServicePorts`      | List of additional service ports to expose. Defaults to `[]`.                                                          |
 | `inferenceExtension.flags`                  | List of flags which are passed through to endpoint picker. Example flags, enable-pprof, grpc-port etc. Refer [runner.go](https://github.com/kubernetes-sigs/gateway-api-inference-extension/blob/main/cmd/epp/runner/runner.go) for complete list.                                                            |
-| `inferenceExtension.flags.has-enable-leader-election` | Enable leader election for high availability. When enabled, only one EPP pod (the leader) will be ready to serve traffic.       |
-| `provider.name`                             | Name of the Inference Gateway implementation being used. Possible values: `gke`. Defaults to `none`.                   |
+| `inferenceExtension.flags.has-enable-leader-election` | Enable leader election for high availability. When enabled, only one EPP pod (the leader) will be ready to serve traffic.       |                                             |
+| `provider.name`                             | Name of the Inference Gateway implementation being used. Possible values: [`none`, `gke`, or `istio`]. Defaults to `none`.                   |
+
+### Provider Specific Configuration
+
+This section should document any Gateway provider specific values configurations.
+
+#### GKE
+
+These are the options available to you with `provider.name` set to `gke`:
+
+| **Parameter Name**                          | **Description**                                                                                                        |
+|---------------------------------------------|------------------------------------------------------------------------------------------------------------------------|
+| `gke.monitoringSecret.name`            | The name of the monitoring secret to be used. Defaults to `inference-gateway-sa-metrics-reader-secret`. |
+| `gke.monitoringSecret.namespace`            | The namespace that the monitoring secret lives in. Defaults to `default`. |
+
+
+#### Istio
+
+These are the options available to you with `provider.name` set to `istio`:
+
+| **Parameter Name**                          | **Description**                                                                                                        |
+|---------------------------------------------|------------------------------------------------------------------------------------------------------------------------|
+| `istio.destinationRule.enabled`            | Enable creation of an Istio DestinationRule to configure traffic routing. |
+| `istio.destinationRule.host`            | Custom host value for the destination rule. If not set this will use the default value which is derrived from the epp service name and release namespace to gerenate a valid service address. |
+| `istio.destinationRule.trafficPolicy.connectionPool`            | Configure the connectionPool level settings of the traffic policy |
+
 
 ## Notes
 

config/charts/inferencepool/templates/istio.yaml

@@ -1,6 +1,6 @@
 {{- if eq .Values.provider.name "istio" }}
----
 {{- if .Values.istio.destinationRule.enabled }}
+---
 apiVersion: networking.istio.io/v1beta1
 kind: DestinationRule
 metadata: