> For the complete documentation index, see [llms.txt](https://doc.cncf.vip/istio-handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.cncf.vip/istio-handbook/pei-zhi/index/workload-group.md).

# WorkloadGroup

`WorkloadGroup` 描述了工作负载实例的集合。它提供了一个规范，工作负载实例可用于启动其代理，包括元数据和身份。它只适用于虚拟机等非 Kubernetes 工作负载，旨在模仿现有的用于 Kubernetes 工作负载的 sidecar 注入和部署规范模型，以引导 Istio 代理。

## 示例

下面的例子声明了一个代表工作负载集合的工作负载组，这些工作负载将在 `bookinfo` 命名空间的 reviews 下注册。在引导过程中，这组标签将与每个工作负载实例相关联，端口 3550 和 8080 将与工作负载组相关联，并使用 default 服务账户。`app.kubernetes.io/version` 只是一个标签的例子。

```yaml
apiVersion: networking.istio.io/v1alpha3
kind: WorkloadGroup
metadata:
  name: reviews
  namespace: bookinfo
spec:
  metadata:
    labels:
      app.kubernetes.io/name: reviews
      app.kubernetes.io/version: "1.3.4"
  template:
    ports:
      grpc: 3550
      http: 8080
    serviceAccount: default
  probe:
    initialDelaySeconds: 5
    timeoutSeconds: 3
    periodSeconds: 4
    successThreshold: 3
    failureThreshold: 3
    httpGet:
     path: /foo/bar
     host: 127.0.0.1
     port: 3100
     scheme: HTTPS
     httpHeaders:
     - name: Lit-Header
       value: Im-The-Best
```

关于 WorkloadGroup 配置的详细用法请参考 [Istio 官方文档](https://istio.io/latest/docs/reference/config/networking/workload-group/)。

## 参考

* [WorkloadGroup - istio.io](https://istio.io/latest/docs/reference/config/networking/workload-group/)


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