如何通过client

gih*_*uka 5

正如问题中所解释的，初学者的文档不清楚。即使 go-client 示例检索数据，我也想获得 Type 支持。

正如上面的回答所解释的那样，您可以以 JSON 格式获取 []byte 中的数据。我就是这样做的。

package main

import (
    "encoding/json"
    "fmt"
    "time"

    "k8s.io/client-go/kubernetes"
    "k8s.io/client-go/rest"
)

// PodMetricsList : PodMetricsList
type PodMetricsList struct {
    Kind       string `json:"kind"`
    APIVersion string `json:"apiVersion"`
    Metadata   struct {
        SelfLink string `json:"selfLink"`
    } `json:"metadata"`
    Items []struct {
        Metadata struct {
            Name              string    `json:"name"`
            Namespace         string    `json:"namespace"`
            SelfLink          string    `json:"selfLink"`
            CreationTimestamp time.Time `json:"creationTimestamp"`
        } `json:"metadata"`
        Timestamp  time.Time `json:"timestamp"`
        Window     string    `json:"window"`
        Containers []struct {
            Name  string `json:"name"`
            Usage struct {
                CPU    string `json:"cpu"`
                Memory string `json:"memory"`
            } `json:"usage"`
        } `json:"containers"`
    } `json:"items"`
}

func getMetrics(clientset *kubernetes.Clientset, pods *PodMetricsList) error {
    data, err := clientset.RESTClient().Get().AbsPath("apis/metrics.k8s.io/v1beta1/pods").DoRaw()
    if err != nil {
        return err
    }
    err = json.Unmarshal(data, &pods)
    return err
}

func main() {
    // creates the in-cluster config
    // https://github.com/kubernetes/client-go/tree/master/examples#configuration
    config, err := rest.InClusterConfig()
    if err != nil {
        panic(err.Error())
    }
    // creates the clientset
    clientset, err := kubernetes.NewForConfig(config)
    if err != nil {
        panic(err.Error())
    }
    var pods PodMetricsList
    err = getMetrics(clientset, &pods)
    if err != nil {
        panic(err.Error())
    }
    for _, m := range pods.Items {
        fmt.Println(m.Metadata.Name, m.Metadata.Namespace, m.Timestamp.String())
    }
}

Run Code Online (Sandbox Code Playgroud)

go get -u k8s.io/client-go/kubernetes k8s.io/client-go/rest

您可以根据需要使用以下端点来检索数据；

apis/metrics.k8s.io/v1beta1/nodesapis/metrics.k8s.io/v1beta1/podsdefaultapis/metrics.k8s.io/v1beta1/namespaces/default/pods/apis/metrics.k8s.io/v1beta1/namespaces/default/pods/

json.Unmarshal

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