从 pod 内部列出 pod 禁止

Question

我是 Kubernetes 新手。我试图通过 javascript 客户端从 pod/容器内部列出命名空间中的所有 pod。

import k8s = require('@kubernetes/client-node');

const kc = new k8s.KubeConfig();
kc.loadFromDefault();

const k8sApi = kc.makeApiClient(k8s.Core_v1Api);

k8sApi.listNamespacedPod('development')
    .then((res) => {
        console.log(res.body);
    }).catch((err) => {
        console.log(err);
    });

当我查看 pod 日志时出现响应错误：

{ kind: 'Status',
 apiVersion: 'v1',
 metadata: {},
 status: 'Failure',
 message:
  'pods is forbidden: User "system:serviceaccount:default:default" cannot list pods in the namespace "development"',
 reason: 'Forbidden',
 details: { kind: 'pods' },
 code: 403 } } 

我相信我需要创建一个新用户或向角色添加一些权限，但我不确定在哪里以及如何创建。谢谢

Answer 1

正如 @ Robert Panzer在Access Kubernetes API without kubectl中建议的那样，您可以创建一个角色和一个角色绑定来启用 pod 列表：

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: pod-reader
rules:
- apiGroups: [""]
  resources: ["pods"]
  verbs: ["get", "watch", "list"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: pod-reader
subjects:
- kind: ServiceAccount
  name: default
  namespace: default
roleRef:
  kind: ClusterRole
  name: pod-reader
  apiGroup: rbac.authorization.k8s.io