Maintenance Description
UK8S is a container management service built on native Kubernetes. The supported cluster versions for this product will be published in line with the new version release of the Kubernetes community. Below is the version support mechanism for the UK8S service:
Version Release
| Version | Status | Release Time | End of Maintenance Time |
|---|---|---|---|
| 1.26.7 | Supported | 2023.10.24 | - |
| 1.24.12 | Supported | 2023.05.08 | - |
| 1.22.5 | Supported | 2022.01.20 | - |
| 1.20.6 and below | End of Maintenance | - | 2023.10.25 |
Version Support
From October 2023, UK8S will only release and support three major versions of Kubernetes with even numbers. The platform support strategy is as follows:
Cluster Creation
You can create clusters of the three Kubernetes even-numbered major versions supported by the UK8S console.
For example, the console currently supports versions 1.20.6, 1.22.5, and 1.24.12 .Once UK8S releases support for 1.26.7, version 1.20.6 will cease maintenance and you will not be able to create this version.
Cluster Upgrade
You can only upgrade to adjacent major versions. Cross-version upgrade and version rollback are not supported.
Technical Support
For the three versions supported by the UK8S console, corresponding technical support is provided, such as answering questions, online guidance, troubleshooting, etc. The expired versions pose certain risks, and the timeliness of technical support is not guaranteed. So it is recommended that you upgrade the Kubernetes version promptly.
For the expired versions, only major defects (affecting cluster maintenance and deletion, affecting the creation, deletion, and maintenance of node or Pod resources, and major vulnerabilities, etc.) fixes are provided. Functional defect fixes and new features are not supported.
Plugin Upgrade
Plugins likeCloudProvider, CSI, CNI can only be upgraded in the aforementioned cluster versions. If you need the latest plugin features, please upgrade the cluster version in a timely manner.
Refer to CloudProvider plugin update, CSI storage plugin upgrade, CNI network plugin upgrade.
Image Version
CentOS officially announced that it will end the maintenance of the CentOS Linux project. As the basic image CentOS Linux provided by UCloud Global is derived from the official CentOS, UCloud Global will stop maintaining this base image accordingly. For more details, please refer to the Response Plan After CentOS Linux Stops Maintenance