Google Kubernetes Engine

Follow these instructions to prepare a GKE cluster for Istio.

Create a new cluster.
```
$ gcloud container clusters create <cluster-name> \
  --cluster-version latest \
  --num-nodes 4 \
  --zone <zone> \
  --project <project-id>
```
To use the Istio CNI feature, the network-policy GKE feature must be enabled in the cluster. Use the --enable-network-policy flag in the gcloud container clusters create command.

Retrieve your credentials for kubectl.

$ gcloud container clusters get-credentials <cluster-name> \
    --zone <zone> \
    --project <project-id>

Grant cluster administrator (admin) permissions to the current user. To create the necessary RBAC rules for Istio, the current user requires admin permissions.
```
$ kubectl create clusterrolebinding cluster-admin-binding \
    --clusterrole=cluster-admin \
    --user=$(gcloud config get-value core/account)
```