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O'Reilly Platform
book
Kubernetes即学即用(第二版)
by
Brendan Burns
,
Joe Beda
,
Kelsey Hightower
June 2021
Intermediate to advanced
300 pages
5h 4m
Chinese
China Electric Power Press Ltd.
Content preview from
Kubernetes即学即用(第二版)
196
|
第
14
章
14.1.3 Kubernetes
中的角色和角色绑定
在
Kubernetes
中,代表角色和角色绑定的资源有两种:一对仅适用于命名
空间(
Role
和
RoleBinding
);另一对适用于整个集群(
ClusterRole
和
ClusterRoleBinding
)。
下面,我们先来看一看
Role
和
RoleBinding
。
Role
资源带有命名空间,表示
这个命名空间中的能力。你不能将命名空间的角色赋予非命名空间的资源(例
如自定义资源定义
CustomResourceDefinition
等),而且将
RoleBinding
绑定
给某个角色只能提供同时包含了这个
Role
和
RoleDefinition
的命名空间内的
授权。
举一个具体的例子,下面是一个简单的角色,能够赋予某个身份创建和修改
Pod
以及服务的能力:
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
namespace: default
name: pod-and-services
rules:
- apiGroups: [""]
resources: ["pods", "services"]
verbs: ["create", "delete", "get", "list", "patch", "update", "watch"]
为了将这个
Role
绑定给用户
alice
,我们需要创建一个
RoleBinding
,如下所
示。这个
RoleBinding
还会将组
mydevs ...
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Publisher Resources
ISBN: 9787519856762