---
title: "Ncloud Kubernetes Service prerequisites"
slug: "k8s-k8sprep"
tags: ["Kubernetes Service (VPC)", "Kubernetes Service"]
updated: 2026-09-17T09:37:44Z
published: 2026-09-17T09:37:44Z
canonical: "guide.ncloud-docs.com/k8s-k8sprep"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Ncloud Kubernetes Service prerequisites

Available in VPC

Review prerequisites and pricing information before using Ncloud Kubernetes Service.

## Cloud specifications

The following are the cloud environment prerequisites required to use Ncloud Kubernetes Service:

| Item | Description | Guide |
| --- | --- | --- |
| VPC | Virtual cloud space for creating Kubernetes clusters. | [Create VPC](/docs/en/vpc-start-vpc) |
| Subnet | Subnet within a virtual cloud space. - Only subnets within the /17-/26 range are available within the VPC CIDR ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). - Subnets within the 172.17.0.0/16 range cannot be used to prevent conflicts with the Docker bridge range. - Subnets dedicated to load balancers cannot be used. | [Create Subnet](/docs/en/vpc-subnetmanage-vpc#subnet-%EC%83%9D%EC%84%B1) |
| Load Balancer Subnet | Subnets for load balancers to be integrated with clusters. - Only subnets within the /17-/26 range are available within the VPC CIDR ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16). - Public LB Subnets and Private LB Subnets are required to create load balancers by network type. - Subnets within the 172.17.0.0/16 range cannot be used to prevent conflicts with the Docker bridge range. | [Create LB Subnet](/docs/en/loadbalancer-start-vpc) |
| NAT Gateway | Gateway to enable outbound Internet traffic. | [Create NAT Gateway](/docs/en/networking-vpc-vpcdetailenatgw) |
| Cloud Log Analytics | (Optional) Service for storing cluster audit logs. | [CLA user guide](/docs/en/cla-overview) |

## Multi Zone cluster service limits

Review the following before creating a Multi Zone cluster:

- Multi Zone clusters are supported only in the Korea Region.
- You must select a Kubernetes version that supports Multi Zone.
- After creating a cluster, you cannot change the availability type (Single Zone/Multi Zone).
- You must select at least 1 general (VM) subnet for each Zone.
- For a Zone with a Bare Metal subnet, you must also select a VM subnet.
- You can select up to 50 subnets per clusters.
- When using a load balancer in a Multi Zone cluster, note the following restrictions.
  - Only 1 load balancer subnet can be specified for each zone.
  - Network Load Balancer (NLB) can use only 1 zone.
  - Zones cannot be removed from a load balancer that has already been created with Multi Zone enabled.

## Pricing information

Ncloud Kubernetes Service is provided on a pay-as-you-go pricing plan. For detailed pricing information, see the [**Ncloud Kubernetes Service guide**](https://www.ncloud.com/product/containers/nks).