Spring Cloud（十四）：微服务灰度发布 --- Discovery
- 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
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。
-
nacos – `spring.cloud.nacos.discovery.metadata.version=gray
spring:
cloud:
discovery:
server-addr: nacos.localhost.com:8848
metadata:
version: 1.1
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
使用
一、父pom引入Discovery
<spring-cloud.version>Hoxton.SR12spring-cloud.version>
<spring-cloud-alibaba.version>2.2.8.RELEASEspring-cloud-alibaba.version>
<discovery.version>6.20.0-SNAPSHOTdiscovery.version>
...
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discoveryartifactId>
<version>${discovery.version}version>
<type>pomtype>
<scope>importscope>
dependency>
二、Gateway 引入 — 网关 discovery-plugin-strategy-starter-gateway
pom.xml
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-register-center-starter-nacosartifactId>
dependency>
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-config-center-starter-nacosartifactId>
dependency>
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-admin-center-starterartifactId>
dependency>
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-strategy-starter-gatewayartifactId>
dependency>
Gateway 配置
spring:
application:
name: demomall-gateway
strategy:
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false
cloud:
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
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-register-center-starter-nacosartifactId>
dependency>
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-config-center-starter-nacosartifactId>
dependency>
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-admin-center-starterartifactId>
dependency>
<dependency>
<groupId>com.nepxiongroupId>
<artifactId>discovery-plugin-strategy-starter-serviceartifactId>
dependency>
配置
spring:
application:
name: demomall-member
cloud:
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
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%
<rule>
<strategy>
<version-weight>1.0=90;1.1=10version-weight>
strategy>
rule>
<rule>
<strategy>
<version-weight>{"discovery-first":"1.0=90;1.1=10", "discovery-second":"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%
<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">{"discovery-first":"1.1", "discovery-second":"1.1"}route>
<route id="stable-route" type="version">{"discovery-first":"1.0", "discovery-second":"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
<rule>
<strategy-release>
<conditions type="gray">
<condition id="gray-condition-1" expression="#H['a'] == '1'" version-id="gray-route=10;stable-route=90"/>
<condition id="gray-condition-2" expression="#H['a'] == '1' and #H['b'] == '2'" version-id="gray-route=85;stable-route=15"/>
<condition id="basic-condition" version-id="gray-route=0;stable-route=100"/>
conditions>
<routes>
<route id="gray-route" type="version">{"discovery-first":"1.1", "discovery-second":"1.1"}route>
<route id="stable-route" type="version">{"discovery-first":"1.0", "discovery-second":"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 {
@Autowired
protected 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 {
@Autowired
protected PluginAdapter pluginAdapter;
@Autowired
protected 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
@Autowired
private 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
