docs/aws: document that cluster and worker pool name need to be unique
They need to be unique per DNS Zone and region.
@@ -172,7 +172,7 @@ worker_pool "my-worker-pool" {
| Argument | Description | Default | Required |
|-------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------:|:--------:|
| `asset_dir` | Location where Lokomotive stores cluster assets. | - | true |
-| `cluster_name` | Name of the cluster. | - | true |
+| `cluster_name` | Name of the cluster. **NOTE**: It must be unique per DNS Zone and region. | - | true |
| `tags` | Optional details to tag on AWS resources. | - | false |
| `os_channel` | Flatcar Container Linux AMI channel to install from (stable, beta, alpha, edge). | "stable" | false |
| `os_version` | Flatcar Container Linux version to install. Version such as "2303.3.1" or "current". | "current" | false |
@@ -194,7 +194,7 @@ worker_pool "my-worker-pool" {
| `cluster_domain_suffix` | Cluster's DNS domain. | "cluster.local" | false |
| `enable_reporting` | Enables usage or analytics reporting to upstream. | false | false |
| `certs_validity_period_hours` | Validity of all the certificates in hours. | 8760 | false |
-| `worker_pool` | Configuration block for worker pools. There can be more than one. | - | true |
+| `worker_pool` | Configuration block for worker pools. There can be more than one. **NOTE**: worker pool name must be unique per DNS zone and region. | - | true |
| `worker_pool.count` | Number of workers in the worker pool. Can be changed afterwards to add or delete workers. | - | true |
| `worker_pool.instance_type` | AWS instance type for worker nodes. | "t3.small" | false |
| `worker_pool.ssh_pubkeys` | SSH public keys for user `core`. | - | true |
