Container > NHN Kubernetes Service (NKS) > Release Notes

July 26, 2022

Added Features

  • A user script can be changed after creating node groups.
  • Added Change User Script API.
  • When upgrading the worker node group, maximum number of nodes and maximum number of unavailable nodes can be specified.

May 24, 2022

Feature Updates

  • Enhanced the performance and reliability of the service by improving the internal architecture

March 29, 2022

Added Features

  • Added support for Kubernetes v1.23.3.
  • Kubernetes v1.19.13 is no longer supported for cluster creation. However, the clusters in use are not affected.
  • When you set the load balancer's listener protocol to TERMINATED_HTTPS, the SSL version can be set to TLSv1.3.

Feature Updates

  • Changed a feature name:
    • Before change: Scheduled script
    • After change: User script

January 25, 2022

Feature Updates

  • The name of the Kubernetes service has been changed to NHN Kubernetes Service (NKS).

Added Features

  • Added support for the following Kubernetes versions:

    • v1.20.12
    • v1.21.6
    • v1.22.3
  • Cluster creation is not supported for the following Kubernetes versions. However, the clusters in use are not affected.

    • v1.17.6
    • v1.18.19
  • Added support for per-listener settings when creating a LoadBalancer type service object.

  • Image added

    • CentOS 7.8 - Container (2022.01.20)
    • Ubuntu Server 18.04.6 LTS - Container (2022.01.20)
      • You can use an Ubuntu worker image for cluster creation and node group creation.

December 28, 2021

Feature Updates

  • Updated the NVIDIA driver used in the GPU worker nodes.
    • Previous version: 450.119.04
    • Changed version: 450.156.00
  • Changed so that Prometheus compatible exporter is not automatically installed when creating an instance.
  • Image update
    • CentOS 7.8 - Container (2021.12.21)

November 23, 2021

Added Features

  • Released the public API for the Kubernetes service.
    • For details on the public API, refer to API Guide.

October 26, 2021

Added Features

  • Supports Kubernetes v1.19.13.
  • When creating a LoadBalancer type service object, various options for the load balancer can be set.
  • The minimum value of the autoscaler's 'Scale Down Delay After Add' setting has been changed to 10 minutes.
  • In new clusters, the default worker node group can be deleted if there are two or more worker node groups.

July 27, 2021

Added Features

  • A user script feature is available when creating node groups.
  • Added container log rotation setting to the worker nodes.
    • Image update
      • CentOS 7.8 - Container (2021.07.27)
    • Refer to Troubleshooting Guide for details on container log management.

June 29, 2021

Added Features

  • Supports Kubernetes v1.18.19.
  • Can upgrade the cluster version.

March 23, 2021

Added Features

  • Events occurred in a user cluster can be checked in NHN CloudTrail.

Bug Fixes

  • Fixed an issue where initialization does not work properly when a node group is created with a graphic-optimized instance type (g2).

February 23, 2021

Feature Updates

  • The PodSecurityPolicy plugin has been added to Kubernetes admission controller.
  • Changed the distribution version of the images used at the time of generating clusters or node groups.
    • Image update
      • CentOS 7.8 - Container (2021.02.23)

January 26, 2021

Bug Fixes

  • Fixed an issue where autoscaler does not work in an environment with no internet gateway connection.
    • Image update
      • CentOS 7.5 - Container (2021.01.26)

December 29, 2020

Feature Updates

  • Kubernetes CSR (Certificate Signing Request) is now available.

November 24, 2020

Added Features

  • Autoscaling is now available.

Feature Updates

  • Remaining load balancers and floating IPs are also deleted when deleting clusters.

October 27, 2020

More Feature

  • Kubernetes clusters now support GPU-based node groups.
    • Image update
      • CentOS 7.5 - Container (2020.10.27)

2020. 09. 22.

Feature Updates

  • Nodes can be added to or deleted from a running node group.

Release of New Service

  • Kubernetes service is now available in the Korea (Pyeongchon) region.

August 25, 2020

Feature Updates

  • A random zone can be selected when creating a Kubernetes cluster on console.

June 23, 2020

Release of New Service

  • Kubernetes clusters can be created and managed on console.
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