2025年workloadentry详解

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讯享网

目前刚开始写一个月，一共写了18篇原创文章，文章目录如下：

istio多集群探秘，部署了50次多集群后我得出的结论

istio多集群链路追踪，附实操视频

istio防故障利器，你知道几个,istio新手不要读，太难！

istio业务权限控制，原来可以这么玩

istio实现非侵入压缩，微服务之间如何实现压缩

不懂envoyfilter也敢说精通istio系列-http-rbac-不要只会用AuthorizationPolicy配置权限

不懂envoyfilter也敢说精通istio系列-02-http-corsFilter-不要只会vs

不懂envoyfilter也敢说精通istio系列-03-http-csrf filter-再也不用再代码里写csrf逻辑了

不懂envoyfilter也敢说精通istio系列http-jwt_authn-不要只会RequestAuthorization

不懂envoyfilter也敢说精通istio系列-05-fault-filter-故障注入不止是vs

不懂envoyfilter也敢说精通istio系列-06-http-match-配置路由不只是vs

不懂envoyfilter也敢说精通istio系列-07-负载均衡配置不止是dr

不懂envoyfilter也敢说精通istio系列-08-连接池和断路器

不懂envoyfilter也敢说精通istio系列-09-http-route filter

不懂envoyfilter也敢说精通istio系列-network filter-redis proxy

不懂envoyfilter也敢说精通istio系列-network filter-HttpConnectionManager

不懂envoyfilter也敢说精通istio系列-ratelimit-istio ratelimit完全手册

学习目标

什么是WorkloadEntry

WorkloadEntry enables operators to describe the properties of a single non-Kubernetes workload such as a VM or a bare metal server as it is onboarded into the mesh. A WorkloadEntry must be accompanied by an Istio ServiceEntry that selects the workload through the appropriate labels and provides the service definition for a MESH_INTERNAL service (hostnames, port properties, etc.). A ServiceEntry object can select multiple workload entries as well as Kubernetes pods based on the label selector specified in the service entry.

资源详解

Field	Type	Description	Required
`address`	`string`	Address associated with the network endpoint without the port. Domain names can be used if and only if the resolution is set to DNS, and must be fully-qualified without wildcards. Use the form unix:///absolute/path/to/socket for Unix domain socket endpoints.	Yes
`ports`	`map`	Set of ports associated with the endpoint. If the port map is specified, it must be a map of servicePortName to this endpoint’s port, such that traffic to the service port will be forwarded to the endpoint port that maps to the service’s portName. If omitted, and the targetPort is specified as part of the service’s port specification, traffic to the service port will be forwarded to one of the endpoints on the specified `targetPort`. If both the targetPort and endpoint’s port map are not specified, traffic to a service port will be forwarded to one of the endpoints on the same port.NOTE 1: Do not use for `unix://` addresses.NOTE 2: endpoint port map takes precedence over targetPort.	No
`labels`	`map`	One or more labels associated with the endpoint.	No
`network`	`string`	Network enables Istio to group endpoints resident in the same L3 domain/network. All endpoints in the same network are assumed to be directly reachable from one another. When endpoints in different networks cannot reach each other directly, an Istio Gateway can be used to establish connectivity (usually using the `AUTO_PASSTHROUGH` mode in a Gateway Server). This is an advanced configuration used typically for spanning an Istio mesh over multiple clusters.	No
`locality`	`string`	The locality associated with the endpoint. A locality corresponds to a failure domain (e.g., country/region/zone). Arbitrary failure domain hierarchies can be represented by separating each encapsulating failure domain by /. For example, the locality of an an endpoint in US, in US-East-1 region, within availability zone az-1, in data center rack r11 can be represented as us/us-east-1/az-1/r11. Istio will configure the sidecar to route to endpoints within the same locality as the sidecar. If none of the endpoints in the locality are available, endpoints parent locality (but within the same network ID) will be chosen. For example, if there are two endpoints in same network (networkID “n1”), say e1 with locality us/us-east-1/az-1/r11 and e2 with locality us/us-east-1/az-2/r12, a sidecar from us/us-east-1/az-1/r11 locality will prefer e1 from the same locality over e2 from a different locality. Endpoint e2 could be the IP associated with a gateway (that bridges networks n1 and n2), or the IP associated with a standard service endpoint.	No
`weight`	`uint32`	The load balancing weight associated with the endpoint. Endpoints with higher weights will receive proportionally higher traffic.	No
`serviceAccount`	`string`	The service account associated with the workload if a sidecar is present in the workload. The service account must be present in the same namespace as the configuration ( WorkloadEntry or a ServiceEntry)

address

wle-mongodb-address.yaml

apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle spec: address: 192.168.198.154 labels:   app: mongodb   instance-id: vm1

讯享网

se-mongodb.yaml

讯享网apiVersion: networking.istio.io/v1beta1 kind: ServiceEntry metadata: name: mongodb-se spec: hosts: - mongodb.vm.demo addresses: - 192.168.198.177 location: MESH_INTERNAL ports: - number: 27017   name: tcp   protocol: TCP   targetPort: 27017 resolution: STATIC workloadSelector:   labels:     app: mongodb     instance-id: vm1

labels

wle-mongodb-labels.yaml

apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle spec: address: 192.168.198.154 labels:   app: mongodb   instance-id: vm1

locality

wle-mongodb-locality-01.yaml

讯享网apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle-01 spec: address: 192.168.198.154 labels:   app: mongodb   instance-id: vm1   type: vm locality: "us-central1/z1/sz01"

wle-mongodb-locality-02.yaml

apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle-02 spec: address: 192.168.198.155 labels:   app: mongodb   instance-id: vm1   type: vm locality: "us-central2/z2/sz02"

se-mongodb-locality.yaml

讯享网apiVersion: networking.istio.io/v1beta1 kind: ServiceEntry metadata: name: mongodb-se spec: hosts: - mongodb.vm.demo addresses: - 192.168.198.177 location: MESH_INTERNAL ports: - number: 27017   name: tcp   protocol: TCP   targetPort: 27017 resolution: STATIC workloadSelector:   labels:     app: mongodb     type: vm

dr-mongodb-locality-failover.yaml

apiVersion: networking.istio.io/v1alpha3 kind: DestinationRule metadata: name: dr-mongodb spec: host: mongodb.vm.demo trafficPolicy:   loadBalancer:     consistentHash:       useSourceIp: true     localityLbSetting:       enabled: true       failover:       - from: us-central1/z1/sz01         to: us-central2/z2/sz02       - from: us-central2/z2/sz02         to: us-central1/z1/sz01   outlierDetection:     consecutive5xxErrors: 1     interval: 1s     baseEjectionTime: 1m

network

network和多集群有关

wle-mongodb-network.yaml

讯享网apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle spec: address: 192.168.198.154 labels:   app: mongodb   instance-id: vm1   type: vm network: n1

ports

wle-mongodb-ports.yaml

apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle spec: address: 192.168.198.154 ports: mongodb: 27017 labels: app: mongodb instance-id: vm1 type: vm

serviceAccount

wle-mongodb-serviceAccount.yaml

讯享网apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle spec: serviceAccount: mongodb-vm address: 192.168.198.154 ports: mongodb: 27017 labels: app: mongodb instance-id: vm1 type: vm

加了serviceaccount访问不了

虚拟机上必须安装sidecar

将在workloadGroup中进行介绍

weight

wle-mongodb-weight-01.yaml

apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle-01 spec: weight: 20 address: 192.168.198.154 ports: mongodb: 27017 labels: app: mongodb instance-id: vm1 type: vm

wle-mongodb-weight-02.yaml

讯享网apiVersion: networking.istio.io/v1beta1 kind: WorkloadEntry metadata: name: mongo-wle-02 spec: weight: 80 address: 192.168.198.155 ports: mongodb: 27017 labels: app: mongodb instance-id: vm2 type: vm