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Bookinfo 应用分为四个单独的微服务：

• productpage：这个微服务会调用 details 和 reviews 两个微服务，用来生成页面
• details：这个微服务中包含了书籍的信息
• reviews：这个微服务中包含了书籍相关的评论。它还会调用 ratings 微服务
• ratings：这个微服务中包含了由书籍评价组成的评级信息

reviews 微服务有 3 个版本：

• v1 版本不会调用 ratings 服务
• v2 版本会调用 ratings 服务，并使用 1 到 5 个黑色星形图标来显示评分信息
• v3 版本会调用 ratings 服务，并使用 1 到 5 个红色星形图标来显示评分信息

开始部署

• 创建 yaml 文件，注意修改 service、serviceaccount 和 deployment 的 namespace

  # Copyright Istio Authors
  #
  #   Licensed under the Apache License, Version 2.0 (the "License");
  #   you may not use this file except in compliance with the License.
  #   You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #   Unless required by applicable law or agreed to in writing, software
  #   distributed under the License is distributed on an "AS IS" BASIS,
  #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #   See the License for the specific language governing permissions and
  #   limitations under the License.##################################################################################################
  # This file defines the services, service accounts, and deployments for the Bookinfo sample.
  #
  # To apply all 4 Bookinfo services, their corresponding service accounts, and deployments:
  #
  #   kubectl apply -f samples/bookinfo/platform/kube/bookinfo.yaml
  #
  # Alternatively, you can deploy any resource separately:
  #
  #   kubectl apply -f samples/bookinfo/platform/kube/bookinfo.yaml -l service=reviews # reviews Service
  #   kubectl apply -f samples/bookinfo/platform/kube/bookinfo.yaml -l account=reviews # reviews ServiceAccount
  #   kubectl apply -f samples/bookinfo/platform/kube/bookinfo.yaml -l app=reviews,version=v3 # reviews-v3 Deployment
  ####################################################################################################################################################################################################
  # Details service
  ##################################################################################################
  apiVersion: v1
  kind: Service
  metadata:name: detailsnamespace: mm-xianliulabels:app: detailsservice: details
  spec:ports:- port: 9080name: httpselector:app: details
  ---
  apiVersion: v1
  kind: ServiceAccount
  metadata:name: bookinfo-detailsnamespace: mm-xianliulabels:account: details
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:name: details-v1namespace: mm-xianliulabels:app: detailsversion: v1
  spec:replicas: 1selector:matchLabels:app: detailsversion: v1template:metadata:labels:app: detailsversion: v1spec:serviceAccountName: bookinfo-detailscontainers:- name: detailsimage: docker.io/istio/examples-bookinfo-details-v1:1.18.0imagePullPolicy: IfNotPresentports:- containerPort: 9080
  ---
  ##################################################################################################
  # Ratings service
  ##################################################################################################
  apiVersion: v1
  kind: Service
  metadata:name: ratingsnamespace: mm-xianliulabels:app: ratingsservice: ratings
  spec:ports:- port: 9080name: httpselector:app: ratings
  ---
  apiVersion: v1
  kind: ServiceAccount
  metadata:name: bookinfo-ratingsnamespace: mm-xianliulabels:account: ratings
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:name: ratings-v1namespace: mm-xianliulabels:app: ratingsversion: v1
  spec:replicas: 1selector:matchLabels:app: ratingsversion: v1template:metadata:labels:app: ratingsversion: v1spec:serviceAccountName: bookinfo-ratingscontainers:- name: ratingsimage: docker.io/istio/examples-bookinfo-ratings-v1:1.18.0imagePullPolicy: IfNotPresentports:- containerPort: 9080
  ---
  ##################################################################################################
  # Reviews service
  ##################################################################################################
  apiVersion: v1
  kind: Service
  metadata:name: reviewsnamespace: mm-xianliulabels:app: reviewsservice: reviews
  spec:ports:- port: 9080name: httpselector:app: reviews
  ---
  apiVersion: v1
  kind: ServiceAccount
  metadata:name: bookinfo-reviewsnamespace: mm-xianliulabels:account: reviews
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:name: reviews-v1namespace: mm-xianliulabels:app: reviewsversion: v1
  spec:replicas: 1selector:matchLabels:app: reviewsversion: v1template:metadata:labels:app: reviewsversion: v1spec:serviceAccountName: bookinfo-reviewscontainers:- name: reviewsimage: docker.io/istio/examples-bookinfo-reviews-v1:1.18.0imagePullPolicy: IfNotPresentenv:- name: LOG_DIRvalue: "/tmp/logs"ports:- containerPort: 9080volumeMounts:- name: tmpmountPath: /tmp- name: wlp-outputmountPath: /opt/ibm/wlp/outputvolumes:- name: wlp-outputemptyDir: {}- name: tmpemptyDir: {}
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:name: reviews-v2namespace: mm-xianliulabels:app: reviewsversion: v2
  spec:replicas: 1selector:matchLabels:app: reviewsversion: v2template:metadata:labels:app: reviewsversion: v2spec:serviceAccountName: bookinfo-reviewscontainers:- name: reviewsimage: docker.io/istio/examples-bookinfo-reviews-v2:1.18.0imagePullPolicy: IfNotPresentenv:- name: LOG_DIRvalue: "/tmp/logs"ports:- containerPort: 9080volumeMounts:- name: tmpmountPath: /tmp- name: wlp-outputmountPath: /opt/ibm/wlp/outputvolumes:- name: wlp-outputemptyDir: {}- name: tmpemptyDir: {}
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:name: reviews-v3namespace: mm-xianliulabels:app: reviewsversion: v3
  spec:replicas: 1selector:matchLabels:app: reviewsversion: v3template:metadata:labels:app: reviewsversion: v3spec:serviceAccountName: bookinfo-reviewscontainers:- name: reviewsimage: docker.io/istio/examples-bookinfo-reviews-v3:1.18.0imagePullPolicy: IfNotPresentenv:- name: LOG_DIRvalue: "/tmp/logs"ports:- containerPort: 9080volumeMounts:- name: tmpmountPath: /tmp- name: wlp-outputmountPath: /opt/ibm/wlp/outputvolumes:- name: wlp-outputemptyDir: {}- name: tmpemptyDir: {}
  ---
  ##################################################################################################
  # Productpage services
  ##################################################################################################
  apiVersion: v1
  kind: Service
  metadata:name: productpagenamespace: mm-xianliulabels:app: productpageservice: productpage
  spec:ports:- port: 9080name: httpselector:app: productpage
  ---
  apiVersion: v1
  kind: ServiceAccount
  metadata:name: bookinfo-productpagenamespace: mm-xianliulabels:account: productpage
  ---
  apiVersion: apps/v1
  kind: Deployment
  metadata:name: productpage-v1namespace: mm-xianliulabels:app: productpageversion: v1
  spec:replicas: 1selector:matchLabels:app: productpageversion: v1template:metadata:annotations:prometheus.io/scrape: "true"prometheus.io/port: "9080"prometheus.io/path: "/metrics"labels:app: productpageversion: v1spec:serviceAccountName: bookinfo-productpagecontainers:- name: productpageimage: docker.io/istio/examples-bookinfo-productpage-v1:1.18.0imagePullPolicy: IfNotPresentports:- containerPort: 9080volumeMounts:- name: tmpmountPath: /tmpvolumes:- name: tmpemptyDir: {}
  ---
  

• 查看命名空间资源是否创建成功并正常运行
  

• 测试 bookinfo 是否运行（只需替换命名空间）
  kubectl exec -n mm-xianliu "$(kubectl -n mm-xianliu get pod -l app=ratings -o jsonpath='{.items[0].metadata.name}')" -c ratings -- curl -sS productpage:9080/productpage | grep -o "<title>.*</title>"
  输出 <title>Simple Bookstore App</title> 表示正常
  

外部访问

• 添加网关 gateway 和虚拟服务 vs（注意修改 namespace 和 hosts）

  apiVersion: networking.istio.io/v1alpha3
  kind: Gateway
  metadata:name: bookinfo-gatewaynamespace: mm-xianliu
  spec:# The selector matches the ingress gateway pod labels.# If you installed Istio using Helm following the standard documentation, this would be "istio=ingress"selector:istio: ingressgateway # use istio default controllerservers:- port:number: 8080name: httpprotocol: HTTPhosts:- "my.bookinfo.com"
  ---
  apiVersion: networking.istio.io/v1alpha3
  kind: VirtualService
  metadata:name: bookinfonamespace: mm-xianliu
  spec:hosts:- "my.bookinfo.com"gateways:- bookinfo-gatewayhttp:- match:- uri:exact: /productpage- uri:prefix: /static- uri:exact: /login- uri:exact: /logout- uri:prefix: /api/v1/productsroute:- destination:host: productpageport:number: 9080
  

• 修改主机 hosts 文件
  

• 开始测试 curl -s "http://my.bookinfo.com/productpage" | grep -o "<title>.*</title>"
  

定义服务版本

• 创建目标规则（注意修改 namespace）

  apiVersion: networking.istio.io/v1alpha3
  kind: DestinationRule
  metadata:name: productpagenamespace: mm-xianliu
  spec:host: productpagesubsets:- name: v1labels:version: v1
  ---
  apiVersion: networking.istio.io/v1alpha3
  kind: DestinationRule
  metadata:name: reviewsnamespace: mm-xianliu
  spec:host: reviewssubsets:- name: v1labels:version: v1- name: v2labels:version: v2- name: v3labels:version: v3
  ---
  apiVersion: networking.istio.io/v1alpha3
  kind: DestinationRule
  metadata:name: ratingsnamespace: mm-xianliu
  spec:host: ratingssubsets:- name: v1labels:version: v1- name: v2labels:version: v2- name: v2-mysqllabels:version: v2-mysql- name: v2-mysql-vmlabels:version: v2-mysql-vm
  ---
  apiVersion: networking.istio.io/v1alpha3
  kind: DestinationRule
  metadata:name: detailsnamespace: mm-xianliu
  spec:host: detailssubsets:- name: v1labels:version: v1- name: v2labels:version: v2
  ---