## Create NKS Node Pool

**post** `/v1/nks/clusters/{cluster_id}/pools`

Create a node pool in an NKS cluster

### Path Parameters

- `cluster_id: string`

### Body Parameters

- `name: string`

  Name of the node pool.

- `node_config: NKSNodePoolNodeConfig`

  Node configuration.

  - `boot_volume: NKSNodePoolBootVolume`

    Boot volume configuration.

    - `size: number`

      Size of the boot volume in GB.

    - `type: VolumeType`

      Type of the Volume.

      - `"nvme"`

      - `"abs"`

  - `instance_type: string`

    Instance type name used for worker nodes. Immutable after pool creation.

  - `labels: optional array of string`

    Kubernetes labels to apply to each node in the pool. Each entry is "key=value".
    Keys under kubernetes.io, k8s.io, and nirvanalabs.io prefixes are reserved.
    Immutable after pool creation.

  - `taints: optional array of string`

    Kubernetes taints to apply to each node in the pool at creation time.
    Each entry is "key=value:Effect" where Effect is NoSchedule, PreferNoSchedule, or NoExecute.
    Immutable after pool creation.

- `node_count: optional number`

  Number of nodes. Must be between 0 and 100.

- `tags: optional array of string`

  Tags to attach to the node pool.

### Returns

- `Operation object { id, created_at, details, 6 more }`

  Operation details.

  - `id: string`

    Unique identifier for the Operation.

  - `created_at: string`

    When the Operation was created.

  - `details: OperationDetails`

    Structured details about what an operation is changing.

    - `changes: OperationChanges`

      Map of changed field names to their from/to diffs. Keys depend on the parent operation's kind+type.

      - `from: string or number or boolean or array of string`

        Previous value.

        - `string`

        - `number`

        - `boolean`

        - `array of string`

      - `to: string or number or boolean or array of string`

        New value.

        - `string`

        - `number`

        - `boolean`

        - `array of string`

  - `kind: OperationKind`

    Kind of Operation.

    - `"vm"`

    - `"volume"`

    - `"vpc"`

    - `"firewall_rule"`

    - `"nks_cluster"`

    - `"nks_node_pool"`

  - `project_id: string`

    Project ID the Operation belongs to.

  - `resource_id: string`

    ID of the resource that the Operation is acting on.

  - `status: OperationStatus`

    Status of the Operation.

    - `"pending"`

    - `"running"`

    - `"done"`

    - `"failed"`

    - `"unknown"`

  - `type: OperationType`

    Type of Operation.

    - `"create"`

    - `"update"`

    - `"delete"`

    - `"restart"`

  - `updated_at: string`

    When the Operation was updated.

### Example

```http
curl https://api.nirvanalabs.io/v1/nks/clusters/$CLUSTER_ID/pools \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $NIRVANA_LABS_API_KEY" \
    -d '{
          "name": "my-node-pool",
          "node_config": {
            "boot_volume": {
              "size": 100,
              "type": "abs"
            },
            "instance_type": "n1-standard-8"
          },
          "node_count": 3,
          "tags": [
            "production",
            "ethereum"
          ]
        }'
```

#### Response

```json
{
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "created_at": "2025-01-01T00:00:00Z",
  "details": {
    "changes": {
      "foo": {
        "from": "string",
        "to": "string"
      }
    }
  },
  "kind": "vm",
  "project_id": "123e4567-e89b-12d3-a456-426614174000",
  "resource_id": "123e4567-e89b-12d3-a456-426614174000",
  "status": "pending",
  "type": "create",
  "updated_at": "2025-01-01T00:00:00Z"
}
```