> This page is for NVIDIA Kubernetes Engine. > For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.nvidia.com/nvke/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/nvke/_mcp/server. # Create a node pool POST https://nvke.acme.example/api/nodePools Content-Type: application/json Creates a worker node pool and starts provisioning. The pool takes the cluster's Kubernetes version. Returns 400 for, among others: parent cluster not found; a duplicate pool name in the cluster; missing `nico.instanceTypeID` or `nico.release`; not exactly one of `subnetIDs` and `vpcPrefixIDs`; a pod CIDR too small for the requested nodes. Reference: https://docs.nvidia.com/nvke/rest-api-reference/node-pools/create-node-pool ## Authentication - `Authorization` header (bearer token, required) — A JWT from an issuer the Operator has configured, carried as `Authorization: Bearer `. ## Request ### Body (application/json) This endpoint expects a CreateNodePoolRequest. - `clusterID` (string, required) — Parent cluster. - `name` (string, required) — Unique within the cluster. Immutable. - `nodeNamePrefix` (string, required) — Prefix for generated node names: `--`. The controller assigns suffix as a 4-digit decimal number (0000–9999). Generated names must fit within 63 characters (Kubernetes Node name limit). Maximum prefix length depends on cluster name length. - `desiredNodeCount` (integer, required) — The desired number of nodes in the pool. For control-plane pools, aggregate capacity above 1 requires controlPlaneVIP on the cluster. - `systemReservedMemory` (string, optional, default: 16Gi) — Memory reserved for system daemons. Nodes reserve 16Gi when omitted. - `kubeReservedMemory` (string, optional) — Memory reserved for Kubernetes components. Default 2Gi. - `machineAnnotations` (map from string to string, optional) — Annotations set on CAPI Machines only when they are created, including Machines created during scale-out or replacement. Fixed at node-pool creation. Not reconciled after provisioning. Keys under nke.nvidia.com, nke.io, nvke.nvidia.com, kubernetes.io, k8s.io, cluster.x-k8s.io and their subdomains require an explicit deployment allowlist entry for this metadata type. - `machineLabels` (map from string to string, optional) — Labels set on CAPI Machines only when they are created, including Machines created during scale-out or replacement. Fixed at node-pool creation. Not reconciled after provisioning. Keys under nke.nvidia.com, nke.io, nvke.nvidia.com, kubernetes.io, k8s.io, cluster.x-k8s.io and their subdomains require an explicit deployment allowlist entry for this metadata type. - `nodeLabels` (map from string to string, optional) — Labels applied to the pool's nodes at creation, as a map of keys to values. Keys under nvke.nvidia.com, nke.nvidia.com (legacy), nke.io (legacy), kubernetes.io, k8s.io and their subdomains are reserved, unless the deployment allows specific Kubernetes keys. - `nodeTaints` (list of NodeTaint, optional) — Taints applied to the pool's nodes at creation. Not allowed on control-plane pools. Keys under nvke.nvidia.com, nke.nvidia.com (legacy), nke.io (legacy), kubernetes.io, k8s.io and their subdomains are reserved. Each key and effect pair may appear only once. - `description` (string, optional) — Free-text description. - `autoProvisionDisabled` (boolean, optional, default: false) — Disables automatic provisioning for the pool. - `autoModeDisabled` (boolean, optional, default: false) — Disables auto-mode (automatic node recycling). - `provisioningMonitorDisabled` (boolean, optional, default: false) — When true, nodes stuck in provisioning past the timeout are not recycled automatically. - `recycleBudget` (integer, optional, default: 0) — Maximum number of nodes recycled at once. - `nico` (NicoNodePoolProvider, optional) — NICo settings for a node pool. instanceTypeID and release are required, and exactly one of subnetIDs and vpcPrefixIDs is required. - `launchLayer` (LaunchLayerNodePoolProvider, optional) — LaunchLayer settings for a node pool. instanceType is required, and at most one of hostOSProfile and vmProfile may be set. ## Response ### 201 Node pool created; provisioning has started - `id` (string, required) — Node pool ID. - `clusterID` (string, required) — Parent cluster. - `name` (string, required) — Node pool name. Unique within the cluster. Immutable. - `nodeNamePrefix` (string, required) — Node names are `--` (four-digit suffix), at most 63 characters in total. - `kubernetesVersion` (string, required) — Desired Kubernetes version for the pool's nodes. Inherits the cluster's version on create. - `nodeLabels` (map from string to string, required) — Labels applied to the pool's nodes, as a map of keys to values. Set at creation. - `nodeTaints` (list of NodeTaint, required) — Taints applied to the pool's nodes. Set at creation. - `conditions` (NodePoolConditions, required) — Lifecycle conditions: provisioning, provisioned, deleting. - `desiredNodeCount` (integer, required) — Number of nodes. - `autoProvisionDisabled` (boolean, required) — Disables automatic provisioning for the pool. - `currentNodeSetID` (string, required, nullable) — The active NodeSet. - `autoModeDisabled` (boolean, required) — Disables auto-mode (automatic node recycling). - `provisioningMonitorDisabled` (boolean, required, default: false) — When true, nodes stuck in provisioning past the timeout are not recycled automatically. - `recycleBudget` (integer, required) — Maximum number of nodes recycled at once. - `systemReservedMemory` (string, optional, default: 16Gi) — Memory reserved for system daemons. Nodes reserve 16Gi when omitted. - `kubeReservedMemory` (string, optional) — Memory reserved for Kubernetes components. Empty when the 2Gi default applies. - `machineAnnotations` (map from string to string, optional) — Annotations set on CAPI Machines only when they are created, including Machines created during scale-out or replacement. Fixed at node-pool creation. Not reconciled after provisioning. Keys under nke.nvidia.com, nke.io, nvke.nvidia.com, kubernetes.io, k8s.io, cluster.x-k8s.io and their subdomains require an explicit deployment allowlist entry for this metadata type. - `machineLabels` (map from string to string, optional) — Labels set on CAPI Machines only when they are created, including Machines created during scale-out or replacement. Fixed at node-pool creation. Not reconciled after provisioning. Keys under nke.nvidia.com, nke.io, nvke.nvidia.com, kubernetes.io, k8s.io, cluster.x-k8s.io and their subdomains require an explicit deployment allowlist entry for this metadata type. - `description` (string, optional) — Free-text description. - `maxSurge` (integer, optional, default: 0) — Nodes allowed above desiredNodeCount during a rollout. 0 means sequential: each node is torn down before its replacement is provisioned. - `nico` (NicoNodePoolProvider, optional) — NICo settings for the pool. - `launchLayer` (LaunchLayerNodePoolProvider, optional) — LaunchLayer settings for the pool. ## Errors ### 400 Bad Request Error The request failed validation - `message` (string, required) — What went wrong. ### 401 Unauthorized Error No valid bearer token was presented. - `message` (string, required) — What went wrong. ### 403 Forbidden Error The token verified, but its subject matches no admission rule. - `message` (string, required) — What went wrong. ### 409 Conflict Error The parent cluster is being deleted - `message` (string, required) — What went wrong. ## Types ### NodeTaint A Kubernetes taint applied to nodes in a pool. - `key` (string, required) — Taint key. - `effect` (enum, required) — Kubernetes taint effect. - Allowed values: `NoSchedule`, `PreferNoSchedule`, `NoExecute` - `value` (string, optional) — Taint value. Empty is valid. ### NicoNodePoolProvider NICo settings for a node pool. instanceTypeID and release are required, and exactly one of subnetIDs and vpcPrefixIDs is required. - `subnetIDs` (list of string, optional) — Subnets, for sites without native networking. - `vpcPrefixIDs` (list of string, optional) — VPC prefixes, for sites with native networking. - `instanceTypeID` (string, optional) — NICo instance type. Fixed at creation. - `infinibandPartitionID` (string, optional) — InfiniBand partition. Fixed at creation. - `nvLinkLogicalPartitionID` (string, optional) — NVLink logical partition. Fixed at creation. - `sshKeyGroupIDs` (list of string, optional) — SSH key groups for node access. Fixed at creation. - `release` (string, optional) — Name of a release the Operator has supplied to the management plane. - `diskSelectionStrategy` (enum, optional) — Which disk the OS is installed on. Default smallest. - Allowed values: `smallest`, `largest` ### LaunchLayerNodePoolProvider LaunchLayer settings for a node pool. instanceType is required, and at most one of hostOSProfile and vmProfile may be set. - `instanceType` (string, required) — Requests capacity of a given shape, for example "vm200". - `hostOSProfile` (string, optional) — Bare-metal profile, as "\" or "\:\". Mutually exclusive with vmProfile. - `vmProfile` (string, optional) — Virtual profile, as "\" or "\:\". Mutually exclusive with hostOSProfile. - `fulfillmentStrategy` (enum, optional) — Controls how the Compute Allocation Operator places the request. - Allowed values: `BEST_EFFORT`, `ALL_OR_NOTHING`, `WAIT_FOR_RESOURCE` - `securityGroupRefs` (LaunchLayerSecurityGroupRefs, optional) — Names of the owning cluster's managed security groups to attach, per network interface. Mutually exclusive with securityGroups (existing group IDs) per interface — CAPLL supports both but NVKE always creates groups through the cluster, so NVKE only exposes refs. ### NodePoolConditions Lifecycle conditions of a node pool. Each is a Condition. - `provisioning` (Condition, required) — The node pool is provisioning. - `provisioned` (Condition, required) — The node pool is provisioned. - `deleting` (Condition, required) — The node pool is being deleted. ### LaunchLayerSecurityGroupRefs Names of the owning cluster's managed security groups to attach, per network interface. Mutually exclusive with securityGroups (existing group IDs) per interface — CAPLL supports both but NVKE always creates groups through the cluster, so NVKE only exposes refs. - `primaryNetworkInterface` (list of string, optional) — Managed security group names to attach to the primary network interface. - `gpuNetworkInterface` (list of string, optional) — Managed security group names to attach to the GPU network interface. ### Condition A status, when it last changed, and a message. - `status` (enum, required) — Condition status. - Allowed values: `True`, `False`, `Unknown` - `lastTransitionTime` (datetime, required) — When the status last changed. - `message` (string, required) — Human-readable detail. May be empty. ## Examples **Request** ```json { "clusterID": "9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e", "name": "gpu-workers-b300", "nodeNamePrefix": "wb", "desiredNodeCount": 4, "systemReservedMemory": "32Gi", "kubeReservedMemory": "4Gi", "nodeLabels": { "nvidia.com/gpu.product": "B300" }, "nodeTaints": [ { "key": "nvidia.com/dedicated", "effect": "NoSchedule", "value": "team-b" } ], "description": "Reserved for team-b training jobs", "recycleBudget": 1, "nico": { "vpcPrefixIDs": [ "2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0" ], "instanceTypeID": "9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b", "sshKeyGroupIDs": [ "3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1" ], "release": "example-ubuntu-24.04-amd64", "diskSelectionStrategy": "largest" } } ``` **Response** ```json { "id": "string", "clusterID": "string", "name": "string", "nodeNamePrefix": "string", "kubernetesVersion": "string", "nodeLabels": {}, "nodeTaints": [ { "key": "string", "effect": "NoSchedule", "value": "string" } ], "conditions": { "provisioning": { "status": "True", "lastTransitionTime": "2024-01-15T09:30:00Z", "message": "string" }, "provisioned": { "status": "True", "lastTransitionTime": "2024-01-15T09:30:00Z", "message": "string" }, "deleting": { "status": "True", "lastTransitionTime": "2024-01-15T09:30:00Z", "message": "string" } }, "desiredNodeCount": 1, "autoProvisionDisabled": true, "currentNodeSetID": "string", "autoModeDisabled": true, "provisioningMonitorDisabled": false, "recycleBudget": 1, "systemReservedMemory": "16Gi", "kubeReservedMemory": "string", "machineAnnotations": {}, "machineLabels": {}, "description": "string", "maxSurge": 0, "nico": { "subnetIDs": [ "string" ], "vpcPrefixIDs": [ "string" ], "instanceTypeID": "string", "infinibandPartitionID": "string", "nvLinkLogicalPartitionID": "string", "sshKeyGroupIDs": [ "string" ], "release": "example-ubuntu-24.04-amd64", "diskSelectionStrategy": "smallest" }, "launchLayer": { "instanceType": "string", "hostOSProfile": "string", "vmProfile": "string", "fulfillmentStrategy": "BEST_EFFORT", "securityGroupRefs": { "primaryNetworkInterface": [ "string" ], "gpuNetworkInterface": [ "string" ] } } } ``` **SDK Code** ```python Node pools_createNodePool_example import requests url = "https://nvke.acme.example/api/nodePools" payload = { "clusterID": "9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e", "name": "gpu-workers-b300", "nodeNamePrefix": "wb", "desiredNodeCount": 4, "systemReservedMemory": "32Gi", "kubeReservedMemory": "4Gi", "nodeLabels": { "nvidia.com/gpu.product": "B300" }, "nodeTaints": [ { "key": "nvidia.com/dedicated", "effect": "NoSchedule", "value": "team-b" } ], "description": "Reserved for team-b training jobs", "recycleBudget": 1, "nico": { "vpcPrefixIDs": ["2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0"], "instanceTypeID": "9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b", "sshKeyGroupIDs": ["3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1"], "release": "example-ubuntu-24.04-amd64", "diskSelectionStrategy": "largest" } } headers = { "Authorization": "Bearer ", "Content-Type": "application/json" } response = requests.post(url, json=payload, headers=headers) print(response.json()) ``` ```javascript Node pools_createNodePool_example const url = 'https://nvke.acme.example/api/nodePools'; const options = { method: 'POST', headers: {Authorization: 'Bearer ', 'Content-Type': 'application/json'}, body: '{"clusterID":"9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e","name":"gpu-workers-b300","nodeNamePrefix":"wb","desiredNodeCount":4,"systemReservedMemory":"32Gi","kubeReservedMemory":"4Gi","nodeLabels":{"nvidia.com/gpu.product":"B300"},"nodeTaints":[{"key":"nvidia.com/dedicated","effect":"NoSchedule","value":"team-b"}],"description":"Reserved for team-b training jobs","recycleBudget":1,"nico":{"vpcPrefixIDs":["2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0"],"instanceTypeID":"9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b","sshKeyGroupIDs":["3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1"],"release":"example-ubuntu-24.04-amd64","diskSelectionStrategy":"largest"}}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); } ``` ```go Node pools_createNodePool_example package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://nvke.acme.example/api/nodePools" payload := strings.NewReader("{\n \"clusterID\": \"9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e\",\n \"name\": \"gpu-workers-b300\",\n \"nodeNamePrefix\": \"wb\",\n \"desiredNodeCount\": 4,\n \"systemReservedMemory\": \"32Gi\",\n \"kubeReservedMemory\": \"4Gi\",\n \"nodeLabels\": {\n \"nvidia.com/gpu.product\": \"B300\"\n },\n \"nodeTaints\": [\n {\n \"key\": \"nvidia.com/dedicated\",\n \"effect\": \"NoSchedule\",\n \"value\": \"team-b\"\n }\n ],\n \"description\": \"Reserved for team-b training jobs\",\n \"recycleBudget\": 1,\n \"nico\": {\n \"vpcPrefixIDs\": [\n \"2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0\"\n ],\n \"instanceTypeID\": \"9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b\",\n \"sshKeyGroupIDs\": [\n \"3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1\"\n ],\n \"release\": \"example-ubuntu-24.04-amd64\",\n \"diskSelectionStrategy\": \"largest\"\n }\n}") req, _ := http.NewRequest("POST", url, payload) req.Header.Add("Authorization", "Bearer ") req.Header.Add("Content-Type", "application/json") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body)) } ``` ```ruby Node pools_createNodePool_example require 'uri' require 'net/http' url = URI("https://nvke.acme.example/api/nodePools") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Post.new(url) request["Authorization"] = 'Bearer ' request["Content-Type"] = 'application/json' request.body = "{\n \"clusterID\": \"9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e\",\n \"name\": \"gpu-workers-b300\",\n \"nodeNamePrefix\": \"wb\",\n \"desiredNodeCount\": 4,\n \"systemReservedMemory\": \"32Gi\",\n \"kubeReservedMemory\": \"4Gi\",\n \"nodeLabels\": {\n \"nvidia.com/gpu.product\": \"B300\"\n },\n \"nodeTaints\": [\n {\n \"key\": \"nvidia.com/dedicated\",\n \"effect\": \"NoSchedule\",\n \"value\": \"team-b\"\n }\n ],\n \"description\": \"Reserved for team-b training jobs\",\n \"recycleBudget\": 1,\n \"nico\": {\n \"vpcPrefixIDs\": [\n \"2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0\"\n ],\n \"instanceTypeID\": \"9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b\",\n \"sshKeyGroupIDs\": [\n \"3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1\"\n ],\n \"release\": \"example-ubuntu-24.04-amd64\",\n \"diskSelectionStrategy\": \"largest\"\n }\n}" response = http.request(request) puts response.read_body ``` ```java Node pools_createNodePool_example import com.mashape.unirest.http.HttpResponse; import com.mashape.unirest.http.Unirest; HttpResponse response = Unirest.post("https://nvke.acme.example/api/nodePools") .header("Authorization", "Bearer ") .header("Content-Type", "application/json") .body("{\n \"clusterID\": \"9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e\",\n \"name\": \"gpu-workers-b300\",\n \"nodeNamePrefix\": \"wb\",\n \"desiredNodeCount\": 4,\n \"systemReservedMemory\": \"32Gi\",\n \"kubeReservedMemory\": \"4Gi\",\n \"nodeLabels\": {\n \"nvidia.com/gpu.product\": \"B300\"\n },\n \"nodeTaints\": [\n {\n \"key\": \"nvidia.com/dedicated\",\n \"effect\": \"NoSchedule\",\n \"value\": \"team-b\"\n }\n ],\n \"description\": \"Reserved for team-b training jobs\",\n \"recycleBudget\": 1,\n \"nico\": {\n \"vpcPrefixIDs\": [\n \"2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0\"\n ],\n \"instanceTypeID\": \"9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b\",\n \"sshKeyGroupIDs\": [\n \"3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1\"\n ],\n \"release\": \"example-ubuntu-24.04-amd64\",\n \"diskSelectionStrategy\": \"largest\"\n }\n}") .asString(); ``` ```php Node pools_createNodePool_example request('POST', 'https://nvke.acme.example/api/nodePools', [ 'body' => '{ "clusterID": "9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e", "name": "gpu-workers-b300", "nodeNamePrefix": "wb", "desiredNodeCount": 4, "systemReservedMemory": "32Gi", "kubeReservedMemory": "4Gi", "nodeLabels": { "nvidia.com/gpu.product": "B300" }, "nodeTaints": [ { "key": "nvidia.com/dedicated", "effect": "NoSchedule", "value": "team-b" } ], "description": "Reserved for team-b training jobs", "recycleBudget": 1, "nico": { "vpcPrefixIDs": [ "2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0" ], "instanceTypeID": "9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b", "sshKeyGroupIDs": [ "3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1" ], "release": "example-ubuntu-24.04-amd64", "diskSelectionStrategy": "largest" } }', 'headers' => [ 'Authorization' => 'Bearer ', 'Content-Type' => 'application/json', ], ]); echo $response->getBody(); ``` ```csharp Node pools_createNodePool_example using RestSharp; var client = new RestClient("https://nvke.acme.example/api/nodePools"); var request = new RestRequest(Method.POST); request.AddHeader("Authorization", "Bearer "); request.AddHeader("Content-Type", "application/json"); request.AddParameter("application/json", "{\n \"clusterID\": \"9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e\",\n \"name\": \"gpu-workers-b300\",\n \"nodeNamePrefix\": \"wb\",\n \"desiredNodeCount\": 4,\n \"systemReservedMemory\": \"32Gi\",\n \"kubeReservedMemory\": \"4Gi\",\n \"nodeLabels\": {\n \"nvidia.com/gpu.product\": \"B300\"\n },\n \"nodeTaints\": [\n {\n \"key\": \"nvidia.com/dedicated\",\n \"effect\": \"NoSchedule\",\n \"value\": \"team-b\"\n }\n ],\n \"description\": \"Reserved for team-b training jobs\",\n \"recycleBudget\": 1,\n \"nico\": {\n \"vpcPrefixIDs\": [\n \"2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0\"\n ],\n \"instanceTypeID\": \"9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b\",\n \"sshKeyGroupIDs\": [\n \"3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1\"\n ],\n \"release\": \"example-ubuntu-24.04-amd64\",\n \"diskSelectionStrategy\": \"largest\"\n }\n}", ParameterType.RequestBody); IRestResponse response = client.Execute(request); ``` ```swift Node pools_createNodePool_example import Foundation let headers = [ "Authorization": "Bearer ", "Content-Type": "application/json" ] let parameters = [ "clusterID": "9b1d4e2a-3c5f-4a7b-8e9d-0f1a2b3c4d5e", "name": "gpu-workers-b300", "nodeNamePrefix": "wb", "desiredNodeCount": 4, "systemReservedMemory": "32Gi", "kubeReservedMemory": "4Gi", "nodeLabels": ["nvidia.com/gpu.product": "B300"], "nodeTaints": [ [ "key": "nvidia.com/dedicated", "effect": "NoSchedule", "value": "team-b" ] ], "description": "Reserved for team-b training jobs", "recycleBudget": 1, "nico": [ "vpcPrefixIDs": ["2d4f6b8a-0c2e-4a4f-b6d8-f0c2e4a6b8d0"], "instanceTypeID": "9e8d7c6b-5a4f-4e3d-8c2b-1a0f9e8d7c6b", "sshKeyGroupIDs": ["3e5a7c9b-1d3f-4b5a-c7e9-a1d3f5b7c9e1"], "release": "example-ubuntu-24.04-amd64", "diskSelectionStrategy": "largest" ] ] as [String : Any] let postData = JSONSerialization.data(withJSONObject: parameters, options: []) let request = NSMutableURLRequest(url: NSURL(string: "https://nvke.acme.example/api/nodePools")! as URL, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10.0) request.httpMethod = "POST" request.allHTTPHeaderFields = headers request.httpBody = postData as Data let session = URLSession.shared let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in if (error != nil) { print(error as Any) } else { let httpResponse = response as? HTTPURLResponse print(httpResponse) } }) dataTask.resume() ```