spring：通过serviceaccount访问k8s资源

如何解决spring：通过serviceaccount访问k8s资源

我想以限制权限（list/watch/get、configmaps/services）访问 pod，所以我为 pod 创建了一个 ServiceAccount。

当我使用默认配置时

Config config = new ConfigBuilder().withMasterUrl("http://127.0.0.1:8080")
                .build();

我好像用默认的ServiceAccount访问k8s

当我使用 ServiceAccount 机密时

Config config = new ConfigBuilder().withMasterUrl("http://127.0.0.1:8000")
                .withTrustCerts(true)
                .withOauthToken(token)//get from minikube dashboard secret token
                .build();

角色配置

# kubectl get roles fullname -o yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
Metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"rbac.authorization.k8s.io/v1beta1","kind":"Role","Metadata":{"annotations":{},"labels":{"chart":"chart","release":"release"},"name":"fullname","namespace":"default"},"rules":[{"apiGroups":[""],"resources":["configmaps","services"],"verbs":["watch","list","get"]}]}
  creationTimestamp: "2020-12-21T01:47:46Z"
  labels:
    chart: chart
    release: release
  managedFields:
  - apiVersion: rbac.authorization.k8s.io/v1beta1
    fieldsType: FieldsV1
    fieldsV1:
      f:Metadata:
        f:annotations:
          .: {}
          f:kubectl.kubernetes.io/last-applied-configuration: {}
        f:labels:
          .: {}
          f:chart: {}
          f:release: {}
      f:rules: {}
    manager: kubectl-client-side-apply
    operation: Update
    time: "2020-12-21T02:34:19Z"
  name: fullname
  namespace: default
  resourceVersion: "44766"
  selfLink: /apis/rbac.authorization.k8s.io/v1/namespaces/default/roles/fullname
  uid: 81cfe685-f629-400d-828a-7869847249d4
rules:
- apiGroups:
  - ""
  resources:
  - configmaps
  - services
  verbs:
  - watch
  - list
  - get

当我调用函数时

public static String getCRD(){
        return kubernetesClient.customresourceDeFinitions().list().toString();
    }

我仍然可以得到结果

那么我怎样才能通过serviceaccount限制的权限访问k8s