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河北省建设厅网站,天津seo代理商,wordpress支持php几,2024年长春新冠病情最新消息灰度发布微服务全链路灰度全链路灰度设计思路 标签路由节点打标流量染色分布式链路追踪 ThreadLocal流量治理平台 Nacos 配置中心 全链路灰度实现Discovery使用 一、父pom引入Discovery二、Gateway 引入 — 网关 discovery-plugin-strategy-starter-gateway三、微服务 引入 — …
  • 灰度发布
  • 微服务全链路灰度
  • 全链路灰度设计思路
    • 标签路由
    • 节点打标
    • 流量染色
    • 分布式链路追踪 ThreadLocal
    • 流量治理平台 Nacos 配置中心
  • 全链路灰度实现
  • Discovery
  • 使用
    • 一、父pom引入Discovery
    • 二、Gateway 引入 — 网关 discovery-plugin-strategy-starter-gateway
    • 三、微服务 引入 — 网关 discovery-plugin-strategy-starter-service
    • 四、Gateway 配置 权重、流量百分比、Header参数
  • 原理分析
    • Openfeign 通过 RequestInterceptor
    • Gateway 通过 GlobalFilter
    • 通过IRule
    • 通过 pluginAdapter 可以拿到需要的数据
  • MSE 微服务治理全链路灰度 太贵

灰度发布

不停机旧版本，部署新版 本，高比例流量（例如：95%）走旧版本，低比例流量（例如：5%）切换到新版本，通过 监控观察无问题，逐步扩大范围，最终把所有流量都迁移到新版本上。属无损发布。

  • 优点
    灵活简单，不需要用户标记驱动。
    安全性高，新版本如果出现问题，只会发生在低比例的流 量上
  • 缺点
    成本较高，需要部署稳定/灰度两套环境

微服务全链路灰度

在发布过程中，我们只需部署服务的灰度版本，流量在调用链路上流转 时，由流经的网关、各个中间件以及各个微服务来识别灰度流量，并动态转发至对应服务的 灰度版本

无论是微服务网关还是微服务本身都需要识别流量，根据治理规则做出动态决策。当服务 版本发生变化时，这个调用链路的转发也会实时改变

在这里插入图片描述

全链路灰度设计思路

1. 标签路由

通过对服务下所有节点按照标签名和标签值不同进行分组，使得订阅该服务节点信 息的服务消费端可以按需访问该服务的某个分组

2. 节点打标

  • k8s – labels.version=gray
    在使用Kubernetes Service作为服务发现的业务系统中，服务提供者通过向ApiServer提交 Service资源完成服务暴露，服务消费端监听与该Service资源下关联的Endpoint资源，从 Endpoint资源中获取关联的业务Pod 资源，读取上面的Labels数据并作为该节点的元数据 信息。所以，我们只要在业务应用描述资源Deployment中的Pod模板中为节点添加标签即可。
    在这里插入图片描述

  • nacos – `spring.cloud.nacos.discovery.metadata.version=gray

spring:cloud:discovery:server-addr: nacos.localhost.com:8848metadata:version: 1.1

在这里插入图片描述

3. 流量染色

  • 可以在请求的源头上对 流量进行染色
  • 可以在微服务网关上对匹配特定路由规则的请求动态添加流量标识 (Gateway GlobalFilter)
  • 流量在链路中流经灰度节点时，如果请求信息中不含有灰度标识，需要自动为其染色 (Openfeign RequestInterceptor)

4. 分布式链路追踪 ThreadLocal

  • 借助于分布式链路追踪思想，我们也可以传递一些自定义信息，比如灰度标识

5. 流量治理平台 Nacos 配置中心

  • 需要引入一个中心化的流量治理平台， 方便各个业务线的开发者定义自己的全链路灰度规则

全链路灰度实现

Discovery

https://github.com/Nepxion/Discovery
https://github.com/Nepxion/Discovery/wiki
http://polaris-paas.gitee.io/polaris-sdk/#/
http://nepxion.gitee.io/discovery/#/?id=入门主页

在这里插入图片描述

使用

一、父pom引入Discovery

<spring-cloud.version>Hoxton.SR12</spring-cloud.version>
<spring-cloud-alibaba.version>2.2.8.RELEASE</spring-cloud-alibaba.version>
<discovery.version>6.20.0-SNAPSHOT</discovery.version>
...<dependency><groupId>com.nepxion</groupId><artifactId>discovery</artifactId><version>${discovery.version}</version><type>pom</type><scope>import</scope></dependency>

二、Gateway 引入 — 网关 discovery-plugin-strategy-starter-gateway

pom.xml

<!-- 1.注册中心插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-register-center-starter-nacos</artifactId>
</dependency><!-- 2.配置中心插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-config-center-starter-nacos</artifactId>
</dependency><!-- 3.管理中心插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-admin-center-starter</artifactId>
</dependency><!-- 4.网关策略编排插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-strategy-starter-gateway</artifactId>
</dependency>

Gateway 配置

spring:application:name: demomall-gatewaystrategy:gateway:dynamic:route:enabled: true #开启网关订阅配置中心的动态路由策略,默认为falsecloud:discovery:metadata:group: discovery-group #组名必须配置

根据实际的灰度发布维度和场景，配置染色方式的元数据

#组名必须要配置，版本、区域、环境和可用区根据具体场景选择其中一种或者几种进行配置
spring.cloud.discovery.metadata.group=discovery-guide-group 
spring.cloud.discovery.metadata.version=1.0
spring.cloud.discovery.metadata.region=dev 
spring.cloud.discovery.metadata.env=env1 
spring.cloud.discovery.metadata.zone=zone1 
spring.cloud.discovery.metadata.active=true

三、微服务 引入 — 网关 discovery-plugin-strategy-starter-service

pom.xml

<!--discovery 1.注册中心插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-register-center-starter-nacos</artifactId>
</dependency><!--discovery 2.配置中心插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-config-center-starter-nacos</artifactId>
</dependency><!--discovery 3.管理中心插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-admin-center-starter</artifactId>
</dependency><!--discovery 4.网关策略编排插件 -->
<dependency><groupId>com.nepxion</groupId><artifactId>discovery-plugin-strategy-starter-service</artifactId>
</dependency>

配置

spring:application:name: demomall-membercloud:discovery: #discovery配置，设置流量染色的元数据metadata:group: discovery-group #组名必须配置version: 1.0 #指定版本号

再新启一个配置VM

-Dserver.port=8878
-Dspring.cloud.discovery.metadata.version=1.1
-javaagent:/root/skywalking/skywalking-agent/skywalking-agent.jar
-DSW_AGENT_NAME=demomall-member
-DSW_AGENT_COLLECTOR_BACKEND_SERVICES=127.0.0.1:11800

四、Gateway 配置

在这里插入图片描述

1. 全链路版本权重灰度发布

在nacos配置中心中增加网关的版本权重灰度发布策略

  • Group为discovery-group
  • Data Id为demomall-gateway
  • 策略内容如下，实现从网关发起的调用全链路1.0版本流量权重 为90%，1.1版本流量权重为10%
<?xml version="1.0" encoding="UTF-8"?>
<rule><strategy><version‐weight>>1.0=90;1.1=10</version-weight><!-- <version‐weight>{"demomall‐member":"1.0=90;1.1=10", "demomall‐promotion":"1.0=90;1.1=10"}</version‐weight> --></strategy>
</rule>

2. 全链路版本条件权重灰度发布 – 指定百分比流量分配

  • 灰度路由，即服务a和b 1.1版本被调用到的概率为5%
  • 稳定路由，即服务a和b 1.0版本被调用到的概率为95%
<?xml version="1.0" encoding="UTF-8"?>
<!-- 在nacos配置中心修改网关控制的灰度发布策略 -->
<rule><strategy‐release><conditions type="gray"><condition id="gray‐condition" version‐id="gray‐route=5;stable‐route=95"/></conditions><routes><route id="gray‐route" type="version">{"demomall‐member":"1.1", "demomall‐promotion":"1.1"}</route><route id="stable‐route" type="version">{"demomall‐member":"1.0", "demomall‐promotion":"1.0"}</route></routes></strategy‐release>
</rule>

3. 根据前端传递的Header参数动态选择百分比流量分配

<?xml version="1.0" encoding="UTF‐8"?>
<rule><strategy‐release><conditions type="gray"><!-- 灰度路由1，条件expression驱动 --><condition id="gray‐condition‐1" expression="#H['a'] == '1'" version‐id="gray‐route=10;stable‐route=90"/><!-- 灰度路由2，条件expression驱动 --><condition id="gray‐condition‐2" expression="#H['a'] == '1' and #H['b'] == '2'" version‐id="gray‐route=85;stable‐route=15"/><!-- 兜底路由，无条件expression驱动 --><condition id="basic‐condition" version‐id="gray‐route=0;stable‐route=100"/></conditions><routes><route id="gray‐route" type="version">{"demomall‐member":"1.1", "tuli ngmall‐promotion":"1.1"}</route><route id="stable‐route" type="version">{"demomall‐member":"1.0", "tu lingmall‐promotion":"1.0"}</route></routes></strategy‐release>
</rule>

原理分析

Openfeign 通过 RequestInterceptor

Openfeign RequestInterceptor

public interface RequestInterceptor {void apply(RequestTemplate template);
}

com.nepxion.discovery.plugin.strategy.aop.FeignStrategyInterceptor

public class FeignStrategyInterceptor extends AbstractStrategyInterceptor implements RequestInterceptor {@Autowiredprotected StrategyContextHolder strategyContextHolder;@Value("${spring.application.strategy.feign.core.header.transmission.enabled:true}")protected Boolean feignCoreHeaderTransmissionEnabled;public FeignStrategyInterceptor(String contextRequestHeaders, String businessRequestHeaders) {super(contextRequestHeaders, businessRequestHeaders);}public void apply(RequestTemplate requestTemplate) {this.interceptInputHeader();this.applyInnerHeader(requestTemplate);this.applyOuterHeader(requestTemplate);this.interceptOutputHeader(requestTemplate);}private void applyInnerHeader(RequestTemplate requestTemplate) {requestTemplate.header("n-d-service-group", new String[]{this.pluginAdapter.getGroup()});requestTemplate.header("n-d-service-type", new String[]{this.pluginAdapter.getServiceType()});String serviceAppId = this.pluginAdapter.getServiceAppId();if (StringUtils.isNotEmpty(serviceAppId)) {requestTemplate.header("n-d-service-app-id", new String[]{serviceAppId});}requestTemplate.header("n-d-service-id", new String[]{this.pluginAdapter.getServiceId()});requestTemplate.header("n-d-service-address", new String[]{this.pluginAdapter.getHost() + ":" + this.pluginAdapter.getPort()});String version = this.pluginAdapter.getVersion();if (StringUtils.isNotEmpty(version) && !StringUtils.equals(version, "default")) {requestTemplate.header("n-d-service-version", new String[]{version});}String region = this.pluginAdapter.getRegion();if (StringUtils.isNotEmpty(region) && !StringUtils.equals(region, "default")) {requestTemplate.header("n-d-service-region", new String[]{region});}String environment = this.pluginAdapter.getEnvironment();if (StringUtils.isNotEmpty(environment) && !StringUtils.equals(environment, "default")) {requestTemplate.header("n-d-service-env", new String[]{environment});}String zone = this.pluginAdapter.getZone();if (StringUtils.isNotEmpty(zone) && !StringUtils.equals(zone, "default")) {requestTemplate.header("n-d-service-zone", new String[]{zone});}}private void applyOuterHeader(RequestTemplate requestTemplate) {Enumeration<String> headerNames = this.strategyContextHolder.getHeaderNames();String routeAddressBlacklist;if (headerNames != null) {while(headerNames.hasMoreElements()) {String headerName = (String)headerNames.nextElement();routeAddressBlacklist = this.strategyContextHolder.getHeader(headerName);boolean isHeaderContains = this.isHeaderContainsExcludeInner(headerName.toLowerCase());if (isHeaderContains) {if (this.feignCoreHeaderTransmissionEnabled) {requestTemplate.header(headerName, new String[]{routeAddressBlacklist});} else {boolean isCoreHeaderContains = StrategyUtil.isCoreHeaderContains(headerName);if (!isCoreHeaderContains) {requestTemplate.header(headerName, new String[]{routeAddressBlacklist});}}}}}if (this.feignCoreHeaderTransmissionEnabled) {Map<String, Collection<String>> headers = requestTemplate.headers();if (CollectionUtils.isEmpty((Collection)headers.get("n-d-version"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteVersion();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-version", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-region"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteRegion();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-region", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-env"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteEnvironment();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-env", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-address"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteAddress();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-address", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-version-weight"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteVersionWeight();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-version-weight", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-region-weight"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteRegionWeight();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-region-weight", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-version-prefer"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteVersionPrefer();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-version-prefer", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-version-failover"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteVersionFailover();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-version-failover", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-region-transfer"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteRegionTransfer();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-region-transfer", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-region-failover"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteRegionFailover();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-region-failover", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-env-failover"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteEnvironmentFailover();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-env-failover", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-zone-failover"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteZoneFailover();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-zone-failover", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-address-failover"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteAddressFailover();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-address-failover", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-id-blacklist"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteIdBlacklist();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-id-blacklist", new String[]{routeAddressBlacklist});}}if (CollectionUtils.isEmpty((Collection)headers.get("n-d-address-blacklist"))) {routeAddressBlacklist = this.strategyContextHolder.getRouteAddressBlacklist();if (StringUtils.isNotEmpty(routeAddressBlacklist)) {requestTemplate.header("n-d-address-blacklist", new String[]{routeAddressBlacklist});}}}}private void interceptOutputHeader(RequestTemplate requestTemplate) {if (this.interceptDebugEnabled) {System.out.println("-------- Feign Intercept Output Header Information ---------");Map<String, Collection<String>> headers = requestTemplate.headers();Iterator var3 = headers.entrySet().iterator();while(var3.hasNext()) {Entry<String, Collection<String>> entry = (Entry)var3.next();String headerName = (String)entry.getKey();boolean isHeaderContains = this.isHeaderContains(headerName.toLowerCase());if (isHeaderContains) {Collection<String> headerValue = (Collection)entry.getValue();System.out.println(headerName + "=" + headerValue);}}System.out.println("------------------------------------------------------------");}}protected InterceptorType getInterceptorType() {return InterceptorType.FEIGN;}
}

Gateway 通过 GlobalFilter

gateway

public interface GlobalFilter {Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain);
}

com.nepxion.discovery.plugin.strategy.gateway.filter.AbstractGatewayStrategyRouteFilter

public abstract class AbstractGatewayStrategyRouteFilter implements GatewayStrategyRouteFilter {@Autowiredprotected PluginAdapter pluginAdapter;@Autowiredprotected StrategyWrapper strategyWrapper;@Autowired(required = false)protected GatewayStrategyMonitor gatewayStrategyMonitor;@Value("${spring.application.strategy.gateway.header.priority:true}")protected Boolean gatewayHeaderPriority;@Value("${spring.application.strategy.gateway.original.header.ignored:true}")protected Boolean gatewayOriginalHeaderIgnored;@Value("${spring.application.strategy.gateway.core.header.transmission.enabled:true}")protected Boolean gatewayCoreHeaderTransmissionEnabled;@Value("${spring.application.strategy.gateway.route.filter.order:9000}")protected Integer filterOrder;public AbstractGatewayStrategyRouteFilter() {}public int getOrder() {return this.filterOrder;}public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {GatewayStrategyContext.getCurrentContext().setExchange(exchange);ServerHttpRequest request = exchange.getRequest();Builder requestBuilder = request.mutate();this.applyInnerHeader(request, requestBuilder);this.applyOuterHeader(request, requestBuilder);if (this.gatewayStrategyMonitor != null) {this.gatewayStrategyMonitor.monitor(exchange);}String path = request.getPath().toString();if (path.contains("inspector/inspect")) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "endpoint-inspector-inspect", this.pluginAdapter.getPluginInfo((String)null), true);}ServerHttpRequest newRequest = requestBuilder.build();ServerWebExchange newExchange = exchange.mutate().request(newRequest).build();GatewayStrategyContext.getCurrentContext().setExchange(newExchange);return chain.filter(newExchange);}private void applyInnerHeader(ServerHttpRequest request, Builder requestBuilder) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-group", this.pluginAdapter.getGroup(), this.gatewayHeaderPriority);GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-type", this.pluginAdapter.getServiceType(), false);String serviceAppId = this.pluginAdapter.getServiceAppId();if (StringUtils.isNotEmpty(serviceAppId)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-app-id", serviceAppId, false);}GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-id", this.pluginAdapter.getServiceId(), false);GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-address", this.pluginAdapter.getHost() + ":" + this.pluginAdapter.getPort(), false);GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-version", this.pluginAdapter.getVersion(), false);GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-region", this.pluginAdapter.getRegion(), false);GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-env", this.pluginAdapter.getEnvironment(), false);GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-service-zone", this.pluginAdapter.getZone(), false);}private void applyOuterHeader(ServerHttpRequest request, Builder requestBuilder) {String routeEnvironment = this.getRouteEnvironment();if (StringUtils.isNotEmpty(routeEnvironment)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-env", routeEnvironment, false);}if (this.gatewayCoreHeaderTransmissionEnabled) {Map<String, String> headerMap = this.strategyWrapper.getHeaderMap();String routeAddress;String routeVersionWeight;if (MapUtils.isNotEmpty(headerMap)) {Iterator var5 = headerMap.entrySet().iterator();while(var5.hasNext()) {Entry<String, String> entry = (Entry)var5.next();routeAddress = (String)entry.getKey();routeVersionWeight = (String)entry.getValue();GatewayStrategyFilterResolver.setHeader(request, requestBuilder, routeAddress, routeVersionWeight, this.gatewayHeaderPriority);}}String routeVersion = this.getRouteVersion();String routeRegion = this.getRouteRegion();routeAddress = this.getRouteAddress();routeVersionWeight = this.getRouteVersionWeight();String routeRegionWeight = this.getRouteRegionWeight();String routeIdBlacklist = this.getRouteIdBlacklist();String routeAddressBlacklist = this.getRouteAddressBlacklist();if (StringUtils.isNotEmpty(routeVersion)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-version", routeVersion, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-version", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}if (StringUtils.isNotEmpty(routeRegion)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-region", routeRegion, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-region", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}if (StringUtils.isNotEmpty(routeAddress)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-address", routeAddress, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-address", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}if (StringUtils.isNotEmpty(routeVersionWeight)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-version-weight", routeVersionWeight, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-version-weight", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}if (StringUtils.isNotEmpty(routeRegionWeight)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-region-weight", routeRegionWeight, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-region-weight", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}if (StringUtils.isNotEmpty(routeIdBlacklist)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-id-blacklist", routeIdBlacklist, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-id-blacklist", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}if (StringUtils.isNotEmpty(routeAddressBlacklist)) {GatewayStrategyFilterResolver.setHeader(request, requestBuilder, "n-d-address-blacklist", routeAddressBlacklist, this.gatewayHeaderPriority);} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-address-blacklist", this.gatewayHeaderPriority, this.gatewayOriginalHeaderIgnored);}} else {GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-version");GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-region");GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-address");GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-version-weight");GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-region-weight");GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-id-blacklist");GatewayStrategyFilterResolver.ignoreHeader(requestBuilder, "n-d-address-blacklist");}}public PluginAdapter getPluginAdapter() {return this.pluginAdapter;}
}

通过IRule

com.netflix.loadbalancer.IRule

public interface IRule{public Server choose(Object key);public void setLoadBalancer(ILoadBalancer lb);public ILoadBalancer getLoadBalancer();    
}

通过 pluginAdapter 可以拿到需要的数据

 //TODO 灰度测试@Autowiredprivate PluginAdapter pluginAdapter;@RequestMapping(value = "/gray/{value}", method = RequestMethod.GET)public String gray(@PathVariable(value = "value") String value) {value = pluginAdapter.getPluginInfo(value);value = couponsFeignService.gray(value);log.info("调用路径：{}", value);return value;}

MSE 微服务治理全链路灰度 太贵

阿里云MSE服务治理产品就是一款基于Java Agent实现的无侵入式企业生产级服务治理产品，您不需要修改任何一行业务代码，即可拥有不限于全链路灰度的治理能力，并且支持近 5年内所有的 Spring Boot、Spring Cloud和Dubbo

https://help.aliyun.com/document_detail/359851.html
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