added Kong ingress example

site/content/docs/user/ingress.md

@@ -23,6 +23,7 @@ by the ingress controller `nodeSelector`.
 2. Deploy an Ingress controller, the following ingress controllers are known to work:
     - [Ambassador](#ambassador)
     - [Contour](#contour)
+    - [Ingress Kong](#ingress-kong)
     - [Ingress NGINX](#ingress-nginx)
 
 ### Create Cluster
@@ -112,6 +113,51 @@ Refer to [Using Ingress](#using-ingress) for a basic example usage.
 
 Additional information about Contour can be found at: [projectcontour.io](https://projectcontour.io)
 
+### Ingress Kong
+
+Deploy [Kong Ingress Controller (KIC)](https://docs.konghq.com/kubernetes-ingress-controller/2.1.x/concepts/design/).
+
+{{< codeFromInline lang="bash" >}}
+kubectl apply -f https://raw.githubusercontent.com/Kong/kubernetes-ingress-controller/master/deploy/single/all-in-one-dbless.yaml
+{{< /codeFromInline >}}
+
+Apply kind specific patches to forward the `hostPorts` to the ingress controller, set taint tolerations, and schedule it to the custom labeled node.
+
+```json
+{{% readFile "static/examples/ingress/kong/deployment.patch.json" %}}
+```
+
+Apply it by running:
+
+{{< codeFromInline lang="bash" >}}
+kubectl patch deployment -n kong ingress-kong -p '{{< minify file="static/examples/ingress/kong/deployment.patch.json" >}}'
+{{< /codeFromInline >}}
+
+Apply kind specific patch to change service type to `NodePort`:
+
+```json
+{{% readFile "static/examples/ingress/kong/service.patch.json" %}}
+```
+
+Apply it by running:
+
+{{< codeFromInline lang="bash" >}}
+kubectl patch service -n kong ingress-kong -p '{{< minify file="static/examples/ingress/kong/service.patch.json" >}}'
+{{< /codeFromInline >}}
+
+KIC can be used to configure ingress now.
+
+You can try the example in [Using Ingress](#using-ingress) at this moment,
+but KIC will not automatically handle `Ingress` object defined there.
+`Ingress` resources must include `ingressClassName: kong` under `spec` of `Ingress`  for being controlled by Kong Ingress Controller (it will be ignored otherwise).
+So once the example has been loaded, you can add this annotation with:
+
+{{< codeFromInline lang="bash" >}}
+kubectl patch ingress example-ingress -p '{"spec":{"ingressClassName":"kong"}}'
+{{< /codeFromInline >}}
+
+Refer [Using Ingress](#using-ingress) for primary example usage.
+
 
 ### Ingress NGINX