Kubernetes 服务帐户无法获取POD，尽管它有权限；来自服务器的错误（禁止）：“…”；

我创建了一个服务帐户，我想授予它列出播客的权限：

kubectl get pods

我对服务帐户、角色和角色绑定有以下设置：

服务帐户.yaml：

apiVersion: v1
kind: ServiceAccount
metadata:
  name: myservice3

kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata: 
  namespace: default
  name: my-role
rules: 
- apiGroups: ["", "extensions", "apps"]
  resources: ["pods"]
  verbs: ["get"] 

角色。yaml：

apiVersion: v1
kind: ServiceAccount
metadata:
  name: myservice3

kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata: 
  namespace: default
  name: my-role
rules: 
- apiGroups: ["", "extensions", "apps"]
  resources: ["pods"]
  verbs: ["get"] 

RoleBinding.yaml：

kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata: 
  name: my-role-binding
  namespace: default
subjects: 
- kind: ServiceAccount 
  name: myservice3
  namespace: default
  apiGroup: ""
roleRef: 
  kind: Role
  name: my-role
  apiGroup: ""

我使用服务帐户的令牌创建了一个用户：

SECRET_NAME=`kubectl get serviceaccounts myservice3 -o json | jq -r '.secrets[].name'`
TOKEN=`kubectl get secrets $SECRET_NAME -o json | jq -r '.data | .token' | base64 -d`
kubectl config set-credentials $USER_NAME --token=$TOKEN

为此用户设置上下文：

kubectl config set-context my-context \
--cluster=kubernetes \
--namespace=default \
--user=$USER_NAME

尝试使用其权限时：

$ kubectl get pods --context=my-context
Error from server (Forbidden): pods is forbidden: User "system:serviceaccount:default:myservice3" cannot list pods in the namespace "default"

我还尝试了使用

curl

：

$ curl -k -v -H "Authorization: Bearer $TOKEN" https://127.0.0.1:6443
* About to connect() to 127.0.0.1 port 6443 (#0)
*   Trying 127.0.0.1...
* Connected to 127.0.0.1 (127.0.0.1) port 6443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* skipping SSL peer certificate verification
* NSS: client certificate not found (nickname not specified)
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
*       subject: CN=kube-apiserver
*       start date: Jul 02 09:36:21 2018 GMT
*       expire date: Jul 02 09:36:21 2019 GMT
*       common name: kube-apiserver
*       issuer: CN=kubernetes
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: 127.0.0.1:6443
> Accept: */*
> Authorization: Bearer <JWT_token>
>
< HTTP/1.1 403 Forbidden
< Content-Type: application/json
< X-Content-Type-Options: nosniff
< Date: Mon, 02 Jul 2018 12:17:10 GMT
< Content-Length: 257
<
{
  "kind": "Status",
  "apiVersion": "v1",
  "metadata": {

  },
  "status": "Failure",
  "message": "forbidden: User \"system:serviceaccount:default:myservice3\" cannot get path \"/\"",
  "reason": "Forbidden",
  "details": {

  },
  "code": 403
* Connection #0 to host 127.0.0.1 left intact

kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata: 
  namespace: default
  name: my-role
rules: 
- apiGroups: ["", "extensions", "apps"]
  resources: ["pods"]
  verbs: ["get", "list"] 

$curl-k-v-H“授权：持票人$TOKEN”https://127.0.0.1:6443
*即将连接（）到127.0.0.1端口6443（#0）
*正在尝试127.0.0.1。。。
*连接到127.0.0.1（127.0.0.1）端口6443（#0）
*使用certpath:sql:/etc/pki/nssdb初始化NSS
*跳过SSL对等证书验证
*NSS:找不到客户端证书（未指定昵称）
*使用TLS\u ECDHE\u RSA\u和\u AES\u 128\u GCM\u SHA256的SSL连接
*服务器证书：
*主题：CN=kube apiserver
*开始日期：格林尼治标准时间2018年7月2日09:36:21
*到期日期：格林尼治标准时间2019年7月2日09:36:21
*通用名称：kube apiserver
*发行人：CN=kubernetes
>GET/HTTP/1.1
>用户代理：curl/7.29.0
>主持人：127.0.0.1:6443
>接受：*/*
>授权：持票人
>

---

知道我做错了什么吗？我给了服务帐户一个

get pods

权限，但它仍然被禁止。

角色。yaml还需要

列表

：

$ curl -k -v -H "Authorization: Bearer $TOKEN" https://127.0.0.1:6443
* About to connect() to 127.0.0.1 port 6443 (#0)
*   Trying 127.0.0.1...
* Connected to 127.0.0.1 (127.0.0.1) port 6443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* skipping SSL peer certificate verification
* NSS: client certificate not found (nickname not specified)
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
*       subject: CN=kube-apiserver
*       start date: Jul 02 09:36:21 2018 GMT
*       expire date: Jul 02 09:36:21 2019 GMT
*       common name: kube-apiserver
*       issuer: CN=kubernetes
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: 127.0.0.1:6443
> Accept: */*
> Authorization: Bearer <JWT_token>
>
< HTTP/1.1 403 Forbidden
< Content-Type: application/json
< X-Content-Type-Options: nosniff
< Date: Mon, 02 Jul 2018 12:17:10 GMT
< Content-Length: 257
<
{
  "kind": "Status",
  "apiVersion": "v1",
  "metadata": {

  },
  "status": "Failure",
  "message": "forbidden: User \"system:serviceaccount:default:myservice3\" cannot get path \"/\"",
  "reason": "Forbidden",
  "details": {

  },
  "code": 403
* Connection #0 to host 127.0.0.1 left intact

kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata: 
  namespace: default
  name: my-role
rules: 
- apiGroups: ["", "extensions", "apps"]
  resources: ["pods"]
  verbs: ["get", "list"] 

get

是获取单个项目的权限，

list

是获取所有ITME的权限。
现在，它在运行时工作：

kubectl get pods --context=myservice3-context

或

curl-k-v-H“授权：承载”https://127.0.0.1:6443/api/v1/namespaces/default/pods