kubernetes系统:发现角色机制
我想了解system:discovery角色在kubernetes中是如何工作的。我能够看到下面的非资源url是system:discovery角色中包含的权限kubernetes系统:发现角色机制,kubernetes,rbac,Kubernetes,Rbac,我想了解system:discovery角色在kubernetes中是如何工作的。我能够看到下面的非资源url是system:discovery角色中包含的权限 root@kubemas:~# kubectl describe clusterrole system:discovery Name: system:discovery Labels: kubernetes.io/bootstrapping=rbac-defaults Annotations: rbac.a
root@kubemas:~# kubectl describe clusterrole system:discovery
Name: system:discovery
Labels: kubernetes.io/bootstrapping=rbac-defaults
Annotations: rbac.authorization.kubernetes.io/autoupdate: true
PolicyRule:
Resources Non-Resource URLs Resource Names Verbs
--------- ----------------- -------------- -----
[/api/*] [] [get]
[/api] [] [get]
[/apis/*] [] [get]
[/apis] [] [get]
[/healthz] [] [get]
[/livez] [] [get]
[/openapi/*] [] [get]
[/openapi] [] [get]
[/readyz] [] [get]
[/version/] [] [get]
[/version] [] [get]
根据clusterrolebinding描述
root@kubemas:~# kubectl describe clusterrolebindings.rbac.authorization.k8s.io system:discovery
Name: system:discovery
Labels: kubernetes.io/bootstrapping=rbac-defaults
Annotations: rbac.authorization.kubernetes.io/autoupdate: true
Role:
Kind: ClusterRole
Name: system:discovery
Subjects:
Kind Name Namespace
---- ---- ---------
Group system:authenticated
我只能看到system:authenticated group可以访问非资源url。如果我执行下面的命令,我可以理解,请求用户是system:anonymous,属于group system:Unatehenticated,因此不允许查看输出
root@kubemas:~# curl -k https://192.168.56.101:6443/api
{
"kind": "Status",
"apiVersion": "v1",
"metadata": {
},
"status": "Failure",
"message": "forbidden: User \"system:anonymous\" cannot get path \"/api\"",
"reason": "Forbidden",
"details": {
},
"code": 403
但是我希望从下面的请求中得到相同的结果,我正在尝试获得kubernetes版本,该版本也是非资源url。但是我能够无错误地获得版本输出。那么这是如何工作的呢。我是否误解了这种机制
root@kubemas:~# curl -k https://192.168.56.101:6443/version
{
"major": "1",
"minor": "18",
"gitVersion": "v1.18.3",
"gitCommit": "2e7996e3e2712684bc73f0dec0200d64eec7fe40",
"gitTreeState": "clean",
"buildDate": "2020-05-20T12:43:34Z",
"goVersion": "go1.13.9",
"compiler": "gc",
"platform": "linux/amd64"
}root@kubemas:~#
系统:公共信息查看器是clusterrole,可访问/version。此clusterole绑定到system:authenticated和system:unauthenticated组。因为它绑定到system:unauthenticated group,所以您可以访问它
从
此clusterole允许以只读方式访问非敏感信息
关于集群。在Kubernetes v1.14中引入
系统:公共信息查看器是clusterrole,可访问/version。此clusterole绑定到system:authenticated和system:unauthenticated组。因为它绑定到system:unauthenticated group,所以您可以访问它
从
此clusterole允许以只读方式访问非敏感信息
关于集群。在Kubernetes v1.14中引入
kubectl describe clusterrole system:public-info-viewer
Name: system:public-info-viewer
Labels: kubernetes.io/bootstrapping=rbac-defaults
Annotations: rbac.authorization.kubernetes.io/autoupdate: true
PolicyRule:
Resources Non-Resource URLs Resource Names Verbs
--------- ----------------- -------------- -----
[/healthz] [] [get]
[/livez] [] [get]
[/readyz] [] [get]
[/version/] [] [get]
[/version] [] [get]