EKS Anywhere\Connector - Register New Cluster Button Does Not React

Question

I've been able to create a local EKS Anywhere cluster in vCenter. I'd like to register it with EKS (using the webUI) but when I complete the form the 'Register' button doesn't react at all. There are no indications of missing fields, no error, and the button is not 'greyed out' it just doesn't react at all when clicked. We have created the AmazonEKSConnectorAgentRole role as defined in the prereqs and I have the required permissions.
		eks:RegisterCluster
		ssm:CreateActivation
		ssm:DeleteActivation
		iam:PassRole

Answer

According to the documentation for [Amazon EKS connector IAM role](https://docs.aws.amazon.com/eks/latest/userguide/connector_IAM_role.html), you will need to create an inline policy and the trust-relationship for the `AmazonEKSConnectorAgentRole` as shown below.

Please verify if your `AmazonEKSConnectorAgentRole` is configured as shown below.

IAM Policy:

```
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "SsmControlChannel",
            "Effect": "Allow",
            "Action": [
                "ssmmessages:CreateControlChannel"
            ],
            "Resource": "arn:aws:eks:*:*:cluster/*"
        },
        {
            "Sid": "ssmDataplaneOperations",
            "Effect": "Allow",
            "Action": [
                "ssmmessages:CreateDataChannel",
                "ssmmessages:OpenDataChannel",
                "ssmmessages:OpenControlChannel"
            ],
            "Resource": "*"
        }
    ]
}
```

Trust Relationship:

```
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "SSMAccess",
            "Effect": "Allow",
            "Principal": {
                "Service": [
                    "ssm.amazonaws.com"
                ]
            },
            "Action": "sts:AssumeRole"
        }
    ]
}
```

I have followed the documentation for [Amazon EKS connector IAM role](https://docs.aws.amazon.com/eks/latest/userguide/connector_IAM_role.html) and I was able to register the cluster.

You can also create an issue in the AWS containers-roadmap project using this link - https://github.com/aws/containers-roadmap/issues/new/choose

EKS Anywhere\Connector - Register New Cluster Button Does Not React

Relevant questions

Default Cluster Version in EKS