Kubernetes / kops:将EBS卷附加到实例时出错。您无权执行此操作。错误403

时间:2018-01-06 21:18:36

标签: amazon-web-services amazon-ec2 kubernetes kubectl kops

我在kops配置的AWS群集上测试了kubernetes部署和EBS卷安装。这是部署yml文件:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: helloworld-deployment-volume
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: helloworld
    spec:
      containers:
      - name: k8s-demo
        image: wardviaene/k8s-demo
        ports:
        - name: nodejs-port
          containerPort: 3000
        volumeMounts:
        - mountPath: /myvol
          name: myvolume
      volumes:
      - name: myvolume
        awsElasticBlockStore:
          volumeID: <volume_id>

kubectl create -f <path_to_this_yml>之后,我在广告连播描述中收到以下消息:

Attach failed for volume "myvolume" : Error attaching EBS volume "XXX" to instance "YYY": "UnauthorizedOperation: You are not authorized to perform this operation. status code: 403

看起来这只是一个权限问题。好的,我检查了节点角色IAM的政策 - &gt; Roles - &gt; nodes.<my_domain>并发现在没有允许操作卷的操作的情况下,默认情况下只有ec2:DescribeInstances个操作。所以我添加了AttachVolumeDetachVolume操作:

    {
        "Sid": "kopsK8sEC2NodePerms",
        "Effect": "Allow",
        "Action": [
            "ec2:DescribeInstances",
            "ec2:AttachVolume",
            "ec2:DetachVolume"
        ],
        "Resource": [
            "*"
        ]
    },

这并没有帮助。我还是得到了这个错误:

Attach failed for volume "myvolume" : Error attaching EBS volume "XXX" to instance "YYY": "UnauthorizedOperation: You are not authorized to perform this operation.

我错过了什么吗?

1 个答案:

答案 0 :(得分:16)

我找到了解决方案。它描述了here

在kops 1.8.0-beta.1中,主节点要求您使用以下标记标记AWS卷:

KubernetesCluster<clustername-here>

因此,使用awscli创建带有该标记的EBS卷是必要的:

aws ec2 create-volume --size 10 --region eu-central-1 --availability-zone eu-central-1a --volume-type gp2 --tag-specifications 'ResourceType=volume,Tags=[{Key=KubernetesCluster,Value=<clustername-here>}]'

或者您可以在EC2 - &gt;中手动标记。 Volumes - &gt; Your volume - &gt; Tags

那就是它。