kubernetes

Question

我想在 kubernetes 中创建新的用户管理员，我执行了创建和授权证书的所有步骤，但是当我想访问 api 时，我收到授权错误。我执行这些步骤来创建用户管理员：

1/openssl genrsa -out user.key 2048

2/openssl req -new -key user.key -out user.csr -subj "/CN=kube-user"

3/

cat <<EOF | kubectl apply -f -
apiVersion: certificates.k8s.io/v1beta1
kind: CertificateSigningRequest
metadata:
  name: user
spec:
  request: $(cat user.csr | base64 | tr -d '\n')
  usages:
  - digital signature
  - key encipherment
  - server auth
EOF

4/k certificate approve user

5/k get csr user -o jsonpath='{.status.certificate}' | base64 --decode > user.crt

6/kubectl config view -o jsonpath='{.clusters[0].cluster.certificate-authority-data}' --raw | base64 --decode - > ca.crt

7/

curl https://$Kube-Master-Ip:6443/api/v1 \
 --key user.key \
 --cert user.crt \
 --cacert ca.crt

8/ 这是我收到的：

{
"kind":"Status",
"apiVersion":"v1",
"metadata":{},
"status":"Failure",
"message":"Unauthorized",
"reason":"Unatuhorized",
"code":401
}

document source: https://kubernetes.io/docs/tasks/tls/managing-tls-in-a-cluster/

Answer 1

第2步命令错误。 admin 用户应该属于 system:masters 组。

openssl req -new -key user.key -out user.csr -subj "/CN=kube-user/O=system:masters"

kubernetes - 无法使用新用户证书访问集群

kubernetes - can't access the cluster with new user certificate

ssl

certificate

createuser

tls1.2