参考istio官方文档bookinfo更新解析

参考istio官方文档bookinfo更新解析

说明：本文在bookinfo部署完成的基础上操作，当前服务都为v1版本

一：更新目的，最终将reviews服务从v1更新到v21：先将10%的流量更新到v2,90%的还在v12：将转发到v2的流量增加到50%，v1的减少到50%3：全部流程转发到v2，v1没有流量4：将50流量转发到v2,50%到v35：将流量全部转发到

部署目标路由规则

destination-rule-all.yamlapiVersion: networking.istio.io/v1alpha3kind: DestinationRulemetadata: name: productpagespec: host: productpage subsets: - name: v1 labels: version: v1---apiVersion: networking.istio.io/v1alpha3kind: DestinationRulemetadata: name: reviewsspec: host: reviews subsets: - name: v1 labels: version: v1 - name: v2 labels: version: v2 - name: v3 labels: version: v3---apiVersion: networking.istio.io/v1alpha3kind: DestinationRulemetadata: name: ratingsspec: host: ratings subsets: - name: v1 labels: version: v1 - name: v2 labels: version: v2 - name: v2-mysql labels: version: v2-mysql - name: v2-mysql-vm labels: version: v2-mysql-vm---apiVersion: networking.istio.io/v1alpha3kind: DestinationRulemetadata: name: detailsspec: host: details subsets: - name: v1 labels: version: v1 - name: v2 labels: version: v2---

准备第1步的清单文件

virtual-service-reviews-90-10.yamlapiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: reviewsspec: hosts: - reviews - route: - destination: host: reviews subset: v1 weight: 90 - destination: host: reviews subset: v2 weight: 10

现象：刷新页面，reviews v1和v2出现频率大概为9:1

准备第2步的清单文件

virtual-service-reviews-50.yamlapiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: reviewsspec: hosts: - reviews - route: - destination: host: reviews subset: v1 weight: 50 - destination: host: reviews subset: v2 weight: 50

现象：刷新页面，v1和v2出现频率大概1:1

准备第3步清单文件

virtual-service-reviews-v2.yamlapiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: reviewsspec: hosts: - reviews - route: - destination: host: reviews subset: v2

现象：刷新页面，reviews版本全为v2

准备第4步的清单文件

virtual-service-reviews-v2-v3.yamlapiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: reviewsspec: hosts: - reviews - route: - destination: host: reviews subset: v2 weight: 50 - destination: host: reviews subset: v3 weight: 50

现象：刷新页面，v2 和v3页面出现频率大概为1:1

准备第5步的清单文件

virtual-service-reviews-v3.yamlapiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: reviewsspec: hosts: - reviews - route: - destination: host: reviews subset: v3

现象：刷新页面，全部为v3页面

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