只读入口资源 kubernetes 用户

Question

我正在尝试授予我命名空间中的默认服务帐户读取入口资源的能力。我希望能够读取集群的所有入口资源，这是否需要 ClusterRole？这是我一直在尝试的角色和绑定。 kubectl 命令kubectl auth can-i list ingress -n my-namespace --as=system:serviceaccount:my-namespace:default 也返回“no”

apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  namespace: my-namespace
  name: my-ingress-reader
rules:
- apiGroups: ["", "networking.k8s.io", "networking", "extensions"] # "" indicates the core API group
  resources: ["ingress"]
  verbs: ["get", "watch", "list"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: my-ingress-reader
  namespace: my-namespace
subjects:
- kind: ServiceAccount
  name: default
  namespace: my-namespace
roleRef:
  kind: Role
  name: my-ingress-reader
  apiGroup: rbac.authorization.k8s.io

Answer 1

您的 Role rules 使用了错误的 API 资源，即 resources: ["ingress"]，它必须是 resources: ["ingresses"]

apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  namespace: my-namespace
  name: my-ingress-reader
rules:
- apiGroups: ["", "networking.k8s.io", "networking", "extensions"] # "" indicates the core API group
  resources: ["ingresses"]
  verbs: ["get", "watch", "list"]

要检查正确的 api 资源，您可以使用以下命令

root@controlplane:~# kubectl api-resources | grep -i ingress
ingresses                         ing          extensions/v1beta1                     true         Ingress
ingressclasses                                 networking.k8s.io/v1                   false        IngressClass
ingresses                         ing          networking.k8s.io/v1                   true         Ingress