Go语言Envoy实战高性能代理与负载均衡1. Envoy概述Envoy是Lyft开源的高性能代理常作为服务网格的数据平面提供负载均衡、熔断、重试等功能。2. Go控制平面实现package envoy import ( api/envoy/api/v2/core api/envoy/api/v2/route api/envoy/api/v2/auth envoy/api/v2 types/api/endpoint ) type ControlPlane struct { nodeID string adsServer *ADSStream } func NewControlPlane(nodeID string) *ControlPlane { return ControlPlane{ nodeID: nodeID, adsServer: NewADSStream(), } } func (cp *ControlPlane) GenerateCDS() (*v2.ClusterDiscoveryService) { return v2.ClusterDiscoveryService{ ClusterName: product-service, Type: v2.Cluster_EDS, ConnectTimeout: 5 * time.Second, LbPolicy: v2.Cluster_ROUND_ROBIN, EdsClusterConfig: v2.Cluster_EdsClusterConfig{ EdsConfig: core.ConfigSource{ ConfigSourceSpecifier: core.ConfigSource_Ads{ Ads: core.AggregatedConfigSource{}, }, }, }, } } func (cp *ControlPlane) GenerateRDS() *v2.RouteConfiguration { return v2.RouteConfiguration{ Name: product-route, VirtualHosts: []*route.VirtualHost{ { Name: product-service, Domains: []string{product-service}, Routes: []*route.Route{ { Match: route.RouteMatch{ Prefix: /, }, Action: route.Route_Route{ Route: route.RouteAction{ Cluster: product-service, }, }, }, }, }, }, } }3. 总结Envoy作为高性能代理Go语言可以通过xDS协议实现控制平面完成服务网格的配置下发和管理。