kubernetes 用户角色管理

用户-角色

• 1.创建 ServiceAccount

$ echo '
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: metrics-server
  name: metrics-server
  namespace: kube-system  
' | kubectl apply -f -

• 2.创建 Role

$ echo '
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  labels:
    kubernetes.io/bootstrapping: rbac-defaults
  name: apiserver-authentication-reader
  namespace: kube-system
rules:
- apiGroups:
  - ""
  resourceNames:
  - extension-apiserver-authentication
  resources:
  - configmaps
  verbs:
  - get
  - list
  - watch
' | kubectl apply -f - 

• 3.创建 RoleBinding

$ echo '
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  labels:
    k8s-app: metrics-server
  name: metrics-server-auth-reader
  namespace: kube-system
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: apiserver-authentication-reader
subjects:
- kind: ServiceAccount
  name: metrics-server
  namespace: kube-system
' | kubectl apply -f - 

用户-集群角色

• 1.创建 ServiceAccount

$ echo '
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kube-system
' | kubectl apply -f -

• 2.创建 ClusterRole

$ echo "
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    kubernetes.io/bootstrapping: rbac-defaults
  name: cluster-admin
rules:
- apiGroups:
  - '*'
  resources:
  - '*'
  verbs:
  - '*'
- nonResourceURLs:
  - '*'
  verbs:
  - '*' 
" | kubectl apply -f -

• 3.创建 ClusterRoleBinding

$ echo '
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kube-system
' | kubectl apply -f -