curl -L https://git.io/getIstio | sh -

export PATH=$PWD/bin:$PATH

kubectl api-versions | grep rbac

If the command displays an error, or does not display anything, it means the cluster does not support RBAC, and you can proceed to step 5 below.
If the command displays ‘beta’ version, or both ‘alpha’ and ‘beta’, please apply istio-rbac-beta.yaml configuration:
kubectl apply -f install/kubernetes/istio-rbac-beta.yaml
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If you get an error
Error from server (Forbidden): error when creating "install/kubernetes/istio-rbac-beta.yaml": clusterroles.rbac.authorization.k8s.io "istio-manager" is forbidden: attempt to grant extra privileges: [{[*] [istio.io] [istioconfigs] [] []} {[*] [istio.io] [istioconfigs.istio.io] [] []} {[*] [extensions] [thirdpartyresources] [] []} {[*] [extensions] [thirdpartyresources.extensions] [] []} {[*] [extensions] [ingresses] [] []} {[*] [] [configmaps] [] []} {[*] [] [endpoints] [] []} {[*] [] [pods] [] []} {[*] [] [services] [] []}] user=&{user@example.org [...]
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You need to add the following: (replace the name with your own)
kubectl create clusterrolebinding myname-cluster-admin-binding --clusterrole=cluster-admin --user=myname@example.org
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If the command displays only ‘alpha’ version, please apply istio-rbac-alpha.yaml configuration:
kubectl apply -f install/kubernetes/istio-rbac-alpha.yaml

kubectl apply -f install/kubernetes/istio.yaml

kubectl apply -f install/kubernetes/addons/prometheus.yaml
kubectl apply -f install/kubernetes/addons/grafana.yaml
kubectl apply -f install/kubernetes/addons/servicegraph.yaml

kubectl apply -f <(istioctl kube-inject -f samples/apps/bookinfo/bookinfo.yaml)