Kubernetes 自定义 CRD："Failed to list ...: the server could not find the requested resource"

Question

我正在尝试创建一个 kubernetes 自定义资源定义（名为 Block），但一直出现以下错误：

Failed to list *v1alpha1.Block: the server could 
not find the requested resource (get 
blocks.kubechain.com).

此 CRD 的控制器上对 List 的调用引发了此问题：

indexer, controller := cache.NewIndexerInformer(
        &cache.ListWatch{
            ListFunc: func(lo metav1.ListOptions) (result k8sruntime.Object, err error) {
                return clientSet.Block(ns).List(lo)
            },
            WatchFunc: func(lo metav1.ListOptions) (watch.Interface, error) {
                return clientSet.Block(ns).Watch(lo)
            },
        },
        &v1alpha1.Block{},
        1*time.Minute,
        cache.ResourceEventHandlerFuncs{},
        cache.Indexers{},
    )

对于某些上下文，这里是 register.go 文件，我在其中将上述资源注册到方案构建器：

// GroupName is the api prefix.
const GroupName = "kubechain.com"

// GroupVersion is the version of the api.
const GroupVersion = "v1alpha1"

// SchemeGroupVersion is the group version object.
var SchemeGroupVersion = schema.GroupVersion{Group: GroupName, Version: GroupVersion}

var (
    // SchemeBuilder adds the new CRDs Block and Blockchain.
    SchemeBuilder = runtime.NewSchemeBuilder(AddKnownTypes)
    // AddToScheme uses SchemeBuilder to add new CRDs.
    AddToScheme = SchemeBuilder.AddToScheme
)

// AddKnownTypes .
func AddKnownTypes(scheme *runtime.Scheme) error {
    scheme.AddKnownTypes(SchemeGroupVersion,
        &Block{},
        &BlockList{},
    )
    metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
    return nil
}

这是 scheme.go 文件，我实际上运行 AddToScheme 来自前一个文件：

var Scheme = runtime.NewScheme()
var Codecs = serializer.NewCodecFactory(Scheme)
var ParameterCodec = runtime.NewParameterCodec(Scheme)
var localSchemeBuilder = runtime.SchemeBuilder{
    v1alpha1.AddToScheme,
}

var AddToScheme = localSchemeBuilder.AddToScheme

func init() {
    metav1.AddToGroupVersion(Scheme, schema.GroupVersion{Version: "v1"})
    if err := AddToScheme(Scheme); err != nil {
        panic(err)
    }
}

任何人都可以分享一些关于我在这里做错了什么的信息吗？？

这项工作正在关注 this 博客 post。

Answer 1

我见过类似的错误。这是 RBAC 问题。但是错误消息具有误导性。

如果您的集群启用了 RBAC，请确保您的控制器对 blocks.kubechain.com 资源具有 get、list 权限。

Kubernetes 自定义 CRD："Failed to list ...: the server could not find the requested resource"

Kubernetes Custom CRD: "Failed to list ...: the server could not find the requested resource"

go

kubernetes

kubernetes-custom-resources