Envoy基于文件系统的EDS动态配置
作者:互联网
昨天写了envoy的lds、cds基于文件系统的动态配置,今天整理一下eds的基于文件系统的动态配置。
resources: - "@type": type.googleapis.com/envoy.config.cluster.v3.Cluster connect_timeout: 1s name: k8s.proxy type: EDS http2_protocol_options: {} eds_cluster_config: eds_config: path: /root/envoy/test.endpoint.json
首先需要将cluster的type类型改为EDS,表明该Cluster是基于EDS发现上游服务的。对于endpoint.json 文件内容必须要求是json格式的,翻看envoy的grpc协议文件可以看出json格式内容
message DiscoveryResponse { option (udpa.annotations.versioning).previous_message_type = "envoy.service.discovery.v3.DiscoveryResponse"; string version_info = 1; repeated google.protobuf.Any resources = 2; bool canary = 3; string type_url = 4; string nonce = 5; config.core.v4alpha.ControlPlane control_plane = 6; } message ClusterLoadAssignment { option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.ClusterLoadAssignment"; message Policy { option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.ClusterLoadAssignment.Policy"; message DropOverload { option (udpa.annotations.versioning).previous_message_type = "envoy.api.v2.ClusterLoadAssignment.Policy.DropOverload"; // Identifier for the policy specifying the drop. string category = 1 [(validate.rules).string = {min_len: 1}]; // Percentage of traffic that should be dropped for the category. type.v3.FractionalPercent drop_percentage = 2; } reserved 1, 5; reserved "disable_overprovisioning"; repeated DropOverload drop_overloads = 2; google.protobuf.UInt32Value overprovisioning_factor = 3 [(validate.rules).uint32 = {gt: 0}]; google.protobuf.Duration endpoint_stale_after = 4 [(validate.rules).duration = {gt {}}]; } string cluster_name = 1 [(validate.rules).string = {min_len: 1}]; repeated LocalityLbEndpoints endpoints = 2; map<string, Endpoint> named_endpoints = 5; Policy policy = 4; }
简单的EDS配置文件如下
{ "version_info": "1", "resources": [ { "@type": "type.googleapis.com/envoy.api.v2.ClusterLoadAssignment", "cluster_name": "k8s.proxy", "endpoints": [ { "lb_endpoints": [ { "endpoint": { "address": { "socket_address": { "address": "xxx.xx.xx.xx", "port_value": 80 } } } }, { "endpoint": { "address": { "socket_address": { "address": "xxx.xxx.xxx", "port_value": 80 } } } } ] } ] } ] }
这样配置之后就可以只更新某个Cluster的EndPoint,而不是更新整个cds配置。
标签:string,Envoy,envoy,文件系统,EDS,address,ClusterLoadAssignment,message,type 来源: https://www.cnblogs.com/pjjwpc/p/15201935.html