十三 Istio：Istio项目实际案例——Online Boutique( 三 ) _生活百科

创建 Kubernetes 资源：
[root@k8scloude1 release]# pwd/root/online-boutique/microservices-demo/release[root@k8scloude1 release]# lsistio-manifests.yamlkubernetes-manifests.yaml#在online-boutique命名空间创建k8s资源[root@k8scloude1 release]# kubectl apply -f /root/online-boutique/microservices-demo/release/kubernetes-manifests.yaml -n online-boutique检查所有 Pod 都在运行：
[root@k8scloude1 release]# kubectl get pod -o wideNAMEREADYSTATUSRESTARTSAGEIPNODENOMINATED NODEREADINESS GATESadservice-9c6d67f96-txrsb2/2Running085s10.244.112.151k8scloude2<none><none>cartservice-6d7544dc98-86p9c2/2Running086s10.244.251.228k8scloude3<none><none>checkoutservice-5ff49769d4-5p2cn2/2Running086s10.244.112.148k8scloude2<none><none>currencyservice-5f56dd7456-lxjnz2/2Running085s10.244.251.241k8scloude3<none><none>emailservice-677bbb77d8-8ndsp2/2Running086s10.244.112.156k8scloude2<none><none>frontend-7d65884948-hnmh62/2Running086s10.244.112.154k8scloude2<none><none>loadgenerator-77ffcbd84d-hhh2w2/2Running085s10.244.112.147k8scloude2<none><none>paymentservice-88f465d9d-nfxnc2/2Running086s10.244.112.149k8scloude2<none><none>productcatalogservice-8496676498-6zpfk2/2Running086s10.244.112.143k8scloude2<none><none>recommendationservice-555cdc5c84-j5w8f2/2Running086s10.244.251.227k8scloude3<none><none>redis-cart-6f65887b5d-42b8m2/2Running085s10.244.251.236k8scloude3<none><none>shippingservice-6ff94bd6-tm6d22/2Running085s10.244.251.242k8scloude3<none><none>创建 Istio 资源：
[root@k8scloude1 microservices-demo]# pwd/root/online-boutique/microservices-demo[root@k8scloude1 microservices-demo]# ls istio-manifests/allow-egress-googleapis.yamlfrontend-gateway.yamlfrontend.yaml[root@k8scloude1 microservices-demo]# kubectl apply -f ./istio-manifestsserviceentry.networking.istio.io/allow-egress-googleapis createdserviceentry.networking.istio.io/allow-egress-google-metadata createdgateway.networking.istio.io/frontend-gateway createdvirtualservice.networking.istio.io/frontend-ingress createdvirtualservice.networking.istio.io/frontend created部署了一切后，我们就可以得到入口网关的 IP 地址并打开前端服务：
[root@k8scloude1 microservices-demo]# INGRESS_HOST="$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.status.loadBalancer.ingress[0].ip}')"[root@k8scloude1 microservices-demo]# echo "$INGRESS_HOST"192.168.110.190[root@k8scloude1 microservices-demo]# kubectl get service -n istio-system istio-ingressgateway -o wideNAMETYPECLUSTER-IPEXTERNAL-IPPORT(S)AGESELECTORistio-ingressgatewayLoadBalancer10.107.131.65192.168.110.19015021:30093/TCP,80:32126/TCP,443:30293/TCP,31400:30628/TCP,15443:30966/TCP27dapp=istio-ingressgateway,istio=ingressgateway在浏览器中打开 INGRESS_HOST，你会看到前端服务，浏览器访问http://192.168.110.190/，如下图所示：

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我们需要做的最后一件事是删除 frontend-external 服务。frontend-external 服务是一个 LoadBalancer 服务，它暴露了前端。由于我们正在使用 Istio 的入口网关，我们不再需要这个 LoadBalancer 服务了。
删除frontend-external服务，运行：

[root@k8scloude1 ~]# kubectl get svc | grep frontend-externalfrontend-externalLoadBalancer10.102.0.207192.168.110.19180:30173/TCP4d15h[root@k8scloude1 ~]# kubectl delete svc frontend-externalservice "frontend-external" deleted[root@k8scloude1 ~]# kubectl get svc | grep frontend-external

Online Boutique 应用清单还包括一个负载发生器，它正在生成对所有服务的请求——这是为了让我们能够模拟网站的流量。
六.部署可观察性工具6.1 部署可观察性工具接下来，我们将部署可观察性、分布式追踪、数据可视化工具，下面两种方法任选一种；