improve install gateway doc (#11734)

* improve install gateway doc

Signed-off-by: hejianpeng <hejianpeng2@huawei.com>

* unify istio-ingressgateway deployment name

Signed-off-by: hejianpeng <hejianpeng2@huawei.com>

content/en/docs/setup/additional-setup/gateway/index.md

@@ -64,7 +64,7 @@ spec:
   profile: empty # Do not install CRDs or the control plane
   components:
     ingressGateways:
-    - name: ingressgateway
+    - name: istio-ingressgateway
       namespace: istio-ingress
       enabled: true
       label:
@@ -92,7 +92,7 @@ Install using standard `helm` commands:
 
 {{< text bash >}}
 $ kubectl create namespace istio-ingress
-$ helm install istio-ingress istio/gateway -n istio-ingress
+$ helm install istio-ingressgateway istio/gateway -n istio-ingress
 {{< /text >}}
 
 To see possible supported configuration values, run `helm show values istio/gateway`.

content/en/docs/setup/additional-setup/gateway/snips.sh

@@ -29,7 +29,7 @@ spec:
   profile: empty # Do not install CRDs or the control plane
   components:
     ingressGateways:
-    - name: ingressgateway
+    - name: istio-ingressgateway
       namespace: istio-ingress
       enabled: true
       label:
@@ -50,7 +50,7 @@ istioctl install -f ingress.yaml
 
 snip_deploying_a_gateway_3() {
 kubectl create namespace istio-ingress
-helm install istio-ingress istio/gateway -n istio-ingress
+helm install istio-ingressgateway istio/gateway -n istio-ingress
 }
 
 ! read -r -d '' snip_deploying_a_gateway_4 <<\ENDSNIP

content/en/docs/setup/additional-setup/gateway/test.sh

@@ -34,11 +34,11 @@ $snip_deploying_a_gateway_1
 EOF
 
 echo y | snip_deploying_a_gateway_2
-_wait_for_deployment istio-ingress ingressgateway
+_wait_for_deployment istio-ingress istio-ingressgateway
 
 rebuild
 _rewrite_helm_repo snip_deploying_a_gateway_3
-_wait_for_deployment istio-ingress istio-ingress
+_wait_for_deployment istio-ingress istio-ingressgateway
 
 rebuild
 # shellcheck disable=SC2154