Store in a variable (id of IAM provider for cluster)
oidc_id=$(aws eks describe-cluster --name my-cluster --query "cluster.identity.oidc.issuer" --output text | cut -d '/' -f 5)
If you already have provider than nothing else is required further:
aws iam list-open-id-connect-providers | grep $oidc_id | cut -d "/" -f4
Create an IAM OIDC identity provider for your cluster with the following command. Replace my-cluster with your own value.
eksctl utils associate-iam-oidc-provider --cluster my-cluster --approve
After that assume role via Terraform or:
eksctl create iamserviceaccount --name ebs-csi-controller-sa --namespace kube-system --cluster my-cluster \
--role-name "AmazonEKS_EBS_CSI_DriverRole" --role-only --attach-policy-arn arn:aws:iam::aws:policy/AmazonEBSCSIDriverPolicy --approve
IAM policy for ebs-csi driver:
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"ec2:CreateSnapshot",
"ec2:AttachVolume",
"ec2:DetachVolume",
"ec2:ModifyVolume",
"ec2:DescribeAvailabilityZones",
"ec2:DescribeInstances",
"ec2:DescribeSnapshots",
"ec2:DescribeTags",
"ec2:DescribeVolumes",
"ec2:DescribeVolumesModifications"
],
"Resource": "*"
},
{
"Effect": "Allow",
"Action": [
"ec2:CreateTags"
],
"Resource": [
"arn:aws:ec2:*:*:volume/*",
"arn:aws:ec2:*:*:snapshot/*"
],
"Condition": {
"StringEquals": {
"ec2:CreateAction": [
"CreateVolume",
"CreateSnapshot"
]
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:DeleteTags"
],
"Resource": [
"arn:aws:ec2:*:*:volume/*",
"arn:aws:ec2:*:*:snapshot/*"
]
},
{
"Effect": "Allow",
"Action": [
"ec2:CreateVolume"
],
"Resource": "*",
"Condition": {
"StringLike": {
"aws:RequestTag/ebs.csi.aws.com/cluster": "true"
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:CreateVolume"
],
"Resource": "*",
"Condition": {
"StringLike": {
"aws:RequestTag/CSIVolumeName": "*"
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:DeleteVolume"
],
"Resource": "*",
"Condition": {
"StringLike": {
"ec2:ResourceTag/ebs.csi.aws.com/cluster": "true"
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:DeleteVolume"
],
"Resource": "*",
"Condition": {
"StringLike": {
"ec2:ResourceTag/CSIVolumeName": "*"
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:DeleteVolume"
],
"Resource": "*",
"Condition": {
"StringLike": {
"ec2:ResourceTag/kubernetes.io/created-for/pvc/name": "*"
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:DeleteSnapshot"
],
"Resource": "*",
"Condition": {
"StringLike": {
"ec2:ResourceTag/CSIVolumeSnapshotName": "*"
}
}
},
{
"Effect": "Allow",
"Action": [
"ec2:DeleteSnapshot"
],
"Resource": "*",
"Condition": {
"StringLike": {
"ec2:ResourceTag/ebs.csi.aws.com/cluster": "true"
}
}
}
]
}