在哪里可以获得Kubernetes API资源和子资源的列表？

我正在尝试以最小许可的方式配置Kubernetes RBAC，我想将角色的范围限定于特定资源和子资源。我浏览了文档，找不到资源及其子资源的简明清单。

我对支配Deployment规范的一部分的子资源（容器映像）特别感兴趣。

使用kubectl api-resources -o wide显示所有资源，动词和关联的API-group。

$ kubectl api-resources -o wide
NAME                              SHORTNAMES     APIGROUP                       NAMESPACED   KIND                             VERBS
bindings                                                                        true         Binding                          [create]
componentstatuses                 cs                                            false        ComponentStatus                  [get list]
configmaps                        cm                                            true         ConfigMap                        [create delete deletecollection get list patch update watch]
endpoints                         ep                                            true         Endpoints                        [create delete deletecollection get list patch update watch]
events                            ev                                            true         Event                            [create delete deletecollection get list patch update watch]
limitranges                       limits                                        true         LimitRange                       [create delete deletecollection get list patch update watch]
namespaces                        ns                                            false        Namespace                        [create delete get list patch update watch]
nodes                             no                                            false        Node                             [create delete deletecollection get list patch update watch]
persistentvolumeclaims            pvc                                           true         PersistentVolumeClaim            [create delete deletecollection get list patch update watch]
persistentvolumes                 pv                                            false        PersistentVolume                 [create delete deletecollection get list patch update watch]
pods                              po                                            true         Pod                              [create delete deletecollection get list patch update watch]
statefulsets                      sts            apps                           true         StatefulSet                      [create delete deletecollection get list patch update watch]
meshpolicies                                     authentication.istio.io        false        MeshPolicy                       [delete deletecollection get list patch create update watch]
policies                                         authentication.istio.io        true         Policy                           [delete deletecollection get list patch create update watch]
...
...

我想您可以使用它来创建RBAC配置中所需的资源列表

定义RBAC角色所需的资源，子资源和动词未记录在静态列表中的任何位置。它们可在发现文档中找到，即通过API获得，例如/api/apps/v1。

以下bash脚本将以以下格式列出所有资源，子资源和动词：

api_version resource: [verb]

哪里api-version是core核心资源，应该""在您的角色定义中替换为（带引号的空字符串）。

例如，core pods/status: get patch update。

该脚本需要jq。

#!/bin/bash
SERVER="localhost:8080"

APIS=$(curl -s $SERVER/apis | jq -r '[.groups | .[].name] | join(" ")')

# do core resources first, which are at a separate api location
api="core"
curl -s $SERVER/api/v1 | jq -r --arg api "$api" '.resources | .[] | "\($api) \(.name): \(.verbs | join(" "))"'

# now do non-core resources
for api in $APIS; do
    version=$(curl -s $SERVER/apis/$api | jq -r '.preferredVersion.version')
    curl -s $SERVER/apis/$api/$version | jq -r --arg api "$api" '.resources | .[]? | "\($api) \(.name): \(.verbs | join(" "))"'
done

警告：请注意，如果没有通过api列出动词，则输出将仅显示api版本和资源，例如

core pods/exec:

在以下资源的特定实例中，没有通过api显示任何动词，这是错误的（Kubernetes错误＃65421，由＃65518修复）：

nodes/proxy
pods/attach
pods/exec
pods/portforward
pods/proxy
services/proxy

这些资源支持的动词如下：

nodes/proxy: create delete get patch update
pods/attach: create get
pods/exec: create get
pods/portforward: create get
pods/proxy: create delete get patch update
services/proxy: create delete get patch update

警告2：有时Kubernetes使用此处未列出的专用动词检查其他权限。例如，bind动词是API组中的roles和clusterroles资源所必需的rbac.authorization.k8s.io。这些专用动词的详细信息可以在此处的文档中找到。