Kubernetes/kops: error attaching EBS volume to instance. You are not authorized to perform this operation. Error 403
I found a solution. It's described here.
In kops 1.8.0-beta.1, master node requires you to tag the AWS volume with:
KubernetesCluster: <clustername-here>
So it's necessary to create EBS volume with that tag by using awscli:
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>}]'or you can tag it by manually in EC2 -> Volumes -> Your volume -> Tags
That's it.
EDIT:
The right cluster name can be found within EC2 instances tags which are part of cluster. Key is the same: KubernetesCluster.