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
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
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
NAT Gateway	Gateway to enable outbound Internet traffic.	Create NAT Gateway
Cloud Log Analytics	(Optional) Service for storing cluster audit logs.	CLA user guide

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.

Ncloud Kubernetes Service is provided on a pay-as-you-go pricing plan. For detailed pricing information, see the Ncloud Kubernetes Service guide.