Merge pull request #44435 from Amrita42/CFE-10-374

CFE-10/374: binding options

Author: Bob Furu

modules/nw-ingress-controller-configuration-parameters.adoc

@@ -36,11 +36,35 @@ If empty, the default value is `ingress.config.openshift.io/cluster` `.spec.doma
 
 If not set, the default value is based on `infrastructure.config.openshift.io/cluster` `.status.platform`:
 
-* AWS: `LoadBalancerService` (with External scope)
+* Amazon Web Services (AWS): `LoadBalancerService` (with External scope)
 * Azure: `LoadBalancerService` (with External scope)
-* GCP: `LoadBalancerService` (with External scope)
+* Google Cloud Platform (GCP): `LoadBalancerService` (with External scope)
 * Bare metal: `NodePortService`
 * Other: `HostNetwork`
++
+[NOTE]
+====
+`HostNetwork` has a `hostNetwork` field with the following default values for the optional binding ports: `httpPort: 80`, `httpsPort: 443`, and `statsPort: 1936`.
+With the binding ports, you can deploy multiple Ingress Controllers on the same node for the `HostNetwork` strategy.
+
+.Example
+[source,yaml]
+----
+apiVersion: operator.openshift.io/v1
+kind: IngressController
+metadata:
+  name: internal
+  namespace: openshift-ingress-operator
+spec:
+  domain: example.com
+  endpointPublishingStrategy:
+    type: HostNetwork
+    hostNetwork:
+      httpPort: 80
+      httpsPort: 443
+      statsPort: 1936
+----
+====
 
 For most platforms, the `endpointPublishingStrategy` value can be updated. On GCP, you can configure the following `endpointPublishingStrategy` fields: