无法在已创建服务帐户、ClusterRole 和 ClusterRolebinding 的命名空间中创建部署

Question

我正在练习 Security k8s。这是我遇到的要解决的练习题。 问题： 创建 serviceaccount 'john' 并有权在给定的 namespace 'hr' 中创建删除获取部署、状态集、守护程序集。需要创建 clusterrole and clusterrolebindings。

方法： 已尝试创建 sa 和 clusterrole 以及 clusterrolebinding（将 clusterrole 与创建的 sa 绑定）但是当我检查时它给出了 'no'

kubectl auth can-i create deploy --as john -n hr

no

创建sa：

kubectl create sa john

创建集群角色：

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  # "namespace" omitted since ClusterRoles are not namespaced
  name: hrcrole
rules:
- apiGroups: ["apps"]
  #
  # at the HTTP level, the name of the resource for accessing Secret
  # objects is "secrets"
  resources: ["deployments", "statefulsets", "daemonsets"]
  verbs: ["get", "watch", "list", "delete"]

创建集群角色绑定：

apiVersion: rbac.authorization.k8s.io/v1
# This cluster role binding allows anyone in the "manager" group to read secrets in any namespace.
kind: ClusterRoleBinding
metadata:
  name: hrcrolebind
subjects:
- kind: User
  name: hruser # Name is case sensitive
  apiGroup: rbac.authorization.k8s.io
roleRef:
  kind: ClusterRole
  name: hrcrole
  apiGroup: rbac.authorization.k8s.io

我也试过在命名空间中创建 serviceaccount，在命名空间中创建 clusterrolebinding，但我仍然没有。不幸的是我没有解决这个问题的方法。在此感谢任何帮助。

Answer 1

您正在尝试 create 部署：

kubectl auth can-i create deploy --as john -n hr

但是您在集群角色中没有允许的 create 动词：

verbs: ["get", "watch", "list", "delete"]

尝试像这样重新创建集群角色：

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  # "namespace" omitted since ClusterRoles are not namespaced
  name: hrcrole
rules:
- apiGroups: ["apps"]
  #
  # at the HTTP level, the name of the resource for accessing Secret
  # objects is "secrets"
  resources: ["deployments", "statefulsets", "daemonsets"]
  verbs: ["create", "get", "watch", "list", "delete"]

无法在已创建服务帐户、ClusterRole 和 ClusterRolebinding 的命名空间中创建部署

Unable to create deployment in a namespace with service account, ClusterRole and ClusterRolebinding created

kubernetes

kubectl

kubernetes-security