Question

我目前正在为Kubernetes编写一个验证网络钩子。我在尝试将来自Kubernetes API的准入请求反序列化为Kubernetes对象时遇到问题。资源可以是以下任何一种：容器，部署，状态集，入口，服务。 UniversalDeserializer询问我类型，但是我用AdmissionRequest无法知道类型。有没有只接受Raw对象并将其解码为有效对象的Decoder？

我尝试反序列化AdmissionRequest.Request.Object.Raw并收到该错误：

panic: Object 'Kind' is missing in '{"metadata":{"name":"gac","namespace":"all","uid":"2b38b994-9cf4-11e9-bb40-0800270c8766","generation":1,"creationTimestamp":"2019-07-02T18:06:52Z","labels":{"app":"gac","release":"nao_pode_essa"}},"spec":{"replicas":1,"selector":{"matchLabels":{"app":"gac","release":"2"}},"template":{"metadata":{"creationTimestamp":null,"labels":{"app":"gac","release":"2"}},"spec":{"containers":'...

但是我的对象中有种。

我尝试使用对象的JSON表示反序列化它，并且它起作用了。

这是我的代码：

func main() {

    review := v1beta1.AdmissionReview{}
    body := `{"kind":"AdmissionReview","apiVersion":"admission.k8s.io/v1beta1","request":{"uid":"2b38c0e2-9cf4-11e9-bb40-0800270c8766","kind":{"group":"apps","version":"v1","kind":"Deployment"},"resource":{"group":"apps","version":"v1","resource":"deployments"},"namespace":"all","operation":"CREATE","userInfo":{"username":"minikube-user","groups":["system:masters","system:authenticated"]},"object":{"metadata":{"name":"gac","namespace":"all","uid":"2b38b994-9cf4-11e9-bb40-0800270c8766","generation":1,"creationTimestamp":"2019-07-02T18:06:52Z","labels":{"app":"gac","release":"nao_pode_essa"}},"spec":{"replicas":1,"selector":{"matchLabels":{"app":"gac","release":"2"}},"template":{"metadata":{"creationTimestamp":null,"labels":{"app":"gac","release":"2"}},"spec":{"containers":[{"name":"erickkkkk","image":"erickfaustino/gac:v0.1.0","ports":[{"name":"http","containerPort":8443,"protocol":"TCP"}],"resources":{"limits":{"cpu":"1","memory":"1Gi"},"requests":{"cpu":"200m","memory":"200Mi"}},"terminationMessagePath":"/dev/termination-log","terminationMessagePolicy":"File","imagePullPolicy":"Always"}],"restartPolicy":"Always","terminationGracePeriodSeconds":30,"dnsPolicy":"ClusterFirst","securityContext":{},"schedulerName":"default-scheduler"}},"strategy":{"type":"RollingUpdate","rollingUpdate":{"maxUnavailable":"25%","maxSurge":"25%"}},"revisionHistoryLimit":10,"progressDeadlineSeconds":600},"status":{}},"oldObject":null,"dryRun":false}}`
    bbyte := []byte(body)
    ud := scheme.Codecs.UniversalDeserializer()
    _, _, err := ud.Decode(bbyte, nil, &review)
    if err != nil {
        panic(err)
    }
    raw := review.Request.Object.Raw
    lero, _, err := ud.Decode(raw, nil, nil)
    if err != nil {
        panic(err)
    }
    fmt.Println(lero)

}

如何在不知道GroupVersionKind的情况下将AdmissionRequest.Raw对象反序列化为Kubernetes对象？

0 个答案: