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[英]How to use the same IAM role for two node groups in an EKS cluster in Terraform?
[英]How can I assign the same RBAC role to two different IAM roles to access a cluster in EKS?
我想授予某个团队访问system:masters
组。 我的团队(下面示例中的AWSReservedSSO_Admin_xxxxxxxxxx
)已经拥有它,并且当我只添加一个rolearn
时它可以工作,但是当我将下面的配置映射与额外的rolearn
一起应用时, AWSReservedSSO_Dev_xxxxxxxxxx
角色下的用户在尝试访问集群时仍然会收到此错误: error: You must be logged in to the server (Unauthorized)
(注意:我们使用的是 AWS SSO,因此假定了 IAM 角色):
---
apiVersion: v1
kind: ConfigMap
data:
mapRoles: |
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/eks-node-group
groups:
- system:bootstrappers
- system:nodes
username: system:node:{{EC2PrivateDNSName}}
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/aws-reserved/sso.amazonaws.com/AWSReservedSSO_Admin_xxxxxxxxxx
groups:
- system:masters
username: admin
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/aws-reserved/sso.amazonaws.com/AWSReservedSSO_Dev_xxxxxxxxxx
groups:
- system:masters
username: admin
metadata:
name: aws-auth
namespace: kube-system
我不确定您是如何承担角色 ❓ 并且您的配置看起来不错,但原因可能是您将同一个用户映射到两个不同的角色。 AWS IAM 只允许用户一次只承担一个角色, 基本上,作为 AWS IAM 用户,您不能同时承担多个 IAM 角色。
您可以尝试使用不同的用户,看看它是否适合您。
---
apiVersion: v1
kind: ConfigMap
data:
mapRoles: |
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/eks-node-group
groups:
- system:bootstrappers
- system:nodes
username: system:node:{{EC2PrivateDNSName}}
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/aws-reserved/sso.amazonaws.com/AWSReservedSSO_Admin_xxxxxxxxxx
groups:
- system:masters
username: admin
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/aws-reserved/sso.amazonaws.com/AWSReservedSSO_Dev_xxxxxxxxxx
groups:
- system:masters
username: admin2
metadata:
name: aws-auth
namespace: kube-system
您可能缺少的另一个方面是您的arn:aws:iam::xxxxxxxxxxx:role/aws-reserved/sso.amazonaws.com/AWSReservedSSO_Dev_xxxxxxxxxx
角色中的“信任关系”,该角色允许admin
担任该角色。
✌️☮️
谢谢里科。 当您使用 SSO 登录时,您将承担 STS 中的角色。 您可以通过运行aws sts get-caller-identity
来验证这一点。
您认为用户名错误是对的,但它并没有解决整个问题。
花了很长时间,但我的队友终于在本指南中找到了解决方案
问题是 IAM 角色的 ARN:
rolearn: arn:aws:iam::xxxxxxxxxxx:role/aws-reserved/sso.amazonaws.com/AWSReservedSSO_Dev_xxxxxxxxxx
这部分aws-reserved/sso.amazonaws.com/
需要从名称中删除。 所以最后结合 Rico 建议的用户名修复:
---
apiVersion: v1
kind: ConfigMap
data:
mapRoles: |
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/eks-node-group
groups:
- system:bootstrappers
- system:nodes
username: system:node:{{EC2PrivateDNSName}}
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/AWSReservedSSO_Admin_xxxxxxxxxx
groups:
- system:masters
username: admin
- rolearn: arn:aws:iam::xxxxxxxxxxx:role/AWSReservedSSO_Dev_xxxxxxxxxx
groups:
- system:masters
username: admin2
metadata:
name: aws-auth
namespace: kube-system
问题终于解决了,承担该角色的 SSO 用户可以运行kubectl
命令!
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