部署 Online Boutique 示例应用

本指南介绍如何安装 Online Boutique 示例应用来演示 Cloud Service Mesh。如果您需要预配 Cloud Service Mesh，请参阅预配指南。

下载和部署示例

要部署应用，您首先需要使用 kpt 从 anthos-service-mesh-packages 代码库下载 Online Boutique 清单。anthos-service-mesh-packages 代码库中的 Online Boutique 示例应用在 microservices-demo 代码库中原始清单集的基础上进行了修改。按照最佳做法，每项服务都会部署在具有唯一服务账号的单独命名空间中。

  1. 如果您尚未安装 kpt，请进行安装：

    gcloud components install kpt

  2. 使用 kpt 下载示例：

    kpt pkg get \
  https://github.com/GoogleCloudPlatform/anthos-service-mesh-packages.git/samples/online-boutique \
  online-boutique

    预期输出

    Package "online-boutique":
Fetching https://github.com/GoogleCloudPlatform/anthos-service-mesh-packages@main
From https://github.com/GoogleCloudPlatform/anthos-service-mesh-packages
* branch            main       -> FETCH_HEAD
Adding package "samples/online-boutique".
Fetched 1 package(s).

  3. 导航到 online-boutique 目录：

    cd online-boutique

  4. 为应用创建命名空间：

    kubectl apply -f kubernetes-manifests/namespaces

    预期输出：

    namespace/ad created
namespace/cart created
namespace/checkout created
namespace/currency created
namespace/email created
namespace/frontend created
namespace/loadgenerator created
namespace/payment created
namespace/product-catalog created
namespace/recommendation created
namespace/shipping created

  5. 将示例部署到集群。

    1. 创建服务账号和部署：

      kubectl apply -f kubernetes-manifests/deployments

      预期输出：

      serviceaccount/ad created
deployment.apps/adservice created
serviceaccount/cart created
deployment.apps/cartservice created
serviceaccount/checkout created
deployment.apps/checkoutservice created
serviceaccount/currency created
deployment.apps/currencyservice created
serviceaccount/email created
deployment.apps/emailservice created
serviceaccount/frontend created
deployment.apps/frontend created
serviceaccount/loadgenerator created
deployment.apps/loadgenerator created
serviceaccount/payment created
deployment.apps/paymentservice created
serviceaccount/product-catalog created
deployment.apps/productcatalogservice created
serviceaccount/recommendation created
deployment.apps/recommendationservice created
serviceaccount/shipping created
deployment.apps/shippingservice created

    2. 创建服务：

      kubectl apply -f kubernetes-manifests/services

      预期输出：

      service/adservice created
service/cartservice created
service/checkoutservice created
service/currencyservice created
service/emailservice created
service/frontend created
service/frontend-external created
service/paymentservice created
service/productcatalogservice created
service/recommendationservice created
service/shippingservice created

    3. 创建服务条目：

      kubectl apply -f istio-manifests/allow-egress-googleapis.yaml

      预期输出：

      serviceentry.networking.istio.io/allow-egress-googleapis created
serviceentry.networking.istio.io/allow-egress-google-metadata created

启用 Sidecar 自动注入功能

  1. 将默认注入标签应用于应用命名空间。

    for ns in ad cart checkout currency email frontend loadgenerator \
   payment product-catalog recommendation shipping; do
      kubectl label namespace $ns istio-injection=enabled --overwrite
done;

    预期输出：

    namespace/ad labeled
namespace/cart labeled
namespace/checkout labeled
namespace/currency labeled
namespace/email labeled
namespace/frontend labeled
namespace/loadgenerator labeled
namespace/payment labeled
namespace/product-catalog labeled
namespace/recommendation labeled
namespace/shipping labeled

  2. 如果您使用的是托管式 Cloud Service Mesh 且部署了可选的代管式数据平面，请按如下方式为应用命名空间添加注解：

    for ns in ad cart checkout currency email frontend loadgenerator \
   payment product-catalog recommendation shipping; do
      kubectl annotate --overwrite namespace $ns mesh.cloud.google.com/proxy='{"managed":"true"}'
done;

  3. 重启 pod：

    for ns in ad cart checkout currency email frontend loadgenerator \
   payment product-catalog recommendation shipping; do
      kubectl rollout restart deployment -n ${ns}
done;

    预期输出：

    deployment.apps/adservice restarted
deployment.apps/cartservice restarted
deployment.apps/checkoutservice restarted
deployment.apps/currencyservice restarted
deployment.apps/emailservice restarted
deployment.apps/frontend restarted
deployment.apps/loadgenerator restarted
deployment.apps/paymentservice restarted
deployment.apps/productcatalogservice restarted
deployment.apps/recommendationservice restarted
deployment.apps/shippingservice restarted

公开和访问应用

您在网格外部公开应用的方式取决于您是否部署了入站流量网关。您可以选择使用 istio 入站流量网关或使用 Kubernetes 服务公开应用。

使用入站流量网关

如果您按照前提条件中指定的方式将入站流量网关部署到集群，请执行以下步骤以使用该网关公开应用。

  1. 为前端服务部署 Gateway 和 VirtualService

    kubectl apply -f istio-manifests/frontend-gateway.yaml

    预期输出：

    gateway.networking.istio.io/frontend-gateway created
virtualservice.networking.istio.io/frontend-ingress created

  2. 获取入站流量网关的外部 IP 地址。将占位符替换为以下信息：

    • GATEWAY_SERVICE_NAME：入站流量网关服务的名称。如果您部署了示例网关而未进行修改，或者您已部署默认入站流量网关，则名称为 istio-ingressgateway。

    • GATEWAY_NAMESPACE：部署入站流量网关的命名空间。如果您部署了默认入站流量网关，则命名空间为 istio-system。

    kubectl get service GATEWAY_SERVICE_NAME  -n GATEWAY_NAMESPACE

    输出类似于以下内容：

    NAME                   TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)                                      AGE
istio-ingressgateway   LoadBalancer   10.19.247.233   35.239.7.64   80:31380/TCP,443:31390/TCP,31400:31400/TCP   27m

    在此示例中，入站流量网关的 IP 地址为 35.239.7.64。

  3. 使用浏览器访问应用，以确认安装：

    http://EXTERNAL_IP/

无入站流量网关

如果您未部署入站流量网关或选择使用 Kubernetes 服务公开应用，请执行以下步骤：

  1. 部署 LoadBalancer 类型的服务以公开前端服务

    kubectl apply -f frontend-external.yaml

  2. 找到 frontend-external Service 的外部 IP 地址：

    kubectl get service frontend-external -n frontend

  3. 使用浏览器访问应用，以确认安装：

    http://EXTERNAL_IP/

您可以在 Google Cloud 控制台中探索 Cloud Service Mesh 可观测性功能。请注意，拓扑图最长可能需要 10 分钟才会显示网格中的服务。

清理

在删除 Online Boutique 之前，您可能希望通过示例使用 Cloud Service Mesh：mTLS，其使用该示例。探索完毕后，请使用以下命令移除 Online Boutique 示例：

  1. 删除应用命名空间：

    kubectl delete -f kubernetes-manifests/namespaces

    预期输出：

    namespace "ad" deleted
namespace "cart" deleted
namespace "checkout" deleted
namespace "currency" deleted
namespace "email" deleted
namespace "frontend" deleted
namespace "loadgenerator" deleted
namespace "payment" deleted
namespace "product-catalog" deleted
namespace "recommendation" deleted
namespace "shipping" deleted

  2. 删除服务条目：

    kubectl delete -f istio-manifests/allow-egress-googleapis.yaml

    预期输出：

    serviceentry.networking.istio.io "allow-egress-googleapis" deleted
serviceentry.networking.istio.io "allow-egress-google-metadata" deleted

后续步骤