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serving/setting-up-ingress-static-ip.md
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@ -8,26 +8,21 @@ external IP address of the "knative-ingressgateway" service under the
gateway, you just need to set the external IP address of the
"knative-ingressgateway" service to the static IP you need.
Platforms:
* [Google Kubernetes Engine](#google-kubernetes-engine--gke-)
## Prerequisites
### Prerequisite 1: Reserve a static IP
#### Knative on GKE
#### Google Kubernetes Engine (GKE)
If you are running Knative cluster on GKE, you can follow the [instructions](https://cloud.google.com/compute/docs/ip-addresses/reserve-static-external-ip-address#reserve_new_static) to reserve a REGIONAL
IP address. The region of the IP address should be the region your Knative
cluster is running in (e.g. us-east1, us-central1, etc.).
TODO: add documentation on reserving static IP in other cloud platforms.
### Prerequisite 2: Deploy Istio And Knative Serving
Follow the [instructions](https://github.com/knative/serving/blob/master/DEVELOPMENT.md)
to deploy Istio and Knative Serving into your cluster.
Once you reach this point, you can start to set up static IP for Knative
gateway.
## Set Up Static IP for Knative Gateway
### Step 1: Update external IP of "knative-ingressgateway" service
@ -35,7 +30,8 @@ gateway.
Run following command to reset the external IP for the
"knative-ingressgateway" service to the static IP you reserved.
```shell
kubectl patch svc knative-ingressgateway -n istio-system --patch '{"spec": { "loadBalancerIP": "<your-reserved-static-ip>" }}'
kubectl patch svc knative-ingressgateway -n istio-system \
--patch '{"spec": { "loadBalancerIP": "<your-reserved-static-ip>" }}'
```
### Step 2: Verify static IP address of knative-ingressgateway service