Upgrading Node Group Version
Currently, our VKS system has supported you to upgrade Node Group Version, you can upgrade Node Group Version to:
Control Plane Version (For example upgrade from 1.24 (current Node Group version) to 1.25 (current Control Plane Version), but cannot upgrade to other versions.
To perform a Node Group Version upgrade, you can follow these instructions:
Step 1: Visit https://vks.console.vngcloud.vn/overview
Step 2: At the Overview screen , select the Kubernetes Cluster menu. Select a Cluster where you want to upgrade Node Group Version .
Step 4: You can select the new version for all Node Groups. The new version needs to be valid and compatible with the current version of the cluster. Specifically: you can choose:
Upgrade Node Group to the same version as Control Plane Version (for example: 1.24 to 1.25)
Step 5: The VKS system will upgrade all Node Groups to the Control Plane version. After the upgrade is complete, the Node Group status returns to ACTIVE .
Attention:
Upgrading Node Group Version is optional and independent of upgrading Control Plane Version. However, all Node Groups in a Cluster will be upgraded at the same time, as well as Control Plane Version and Node Group Version in the same Cluster cannot differ by more than 1 minor version. Besides, the VKS system automatically upgrades the Node Group Version when the current K8S Version being used for your Cluster exceeds the supplier's support period.
During the Node Group Version upgrade, you cannot perform other actions on your Node Group.
Below are a few notes before, during and after the upgrade process, please refer to:
Before getting into work:
Check the current version: Visit Releases for a list of supported versions. Select a new version that is valid and compatible with the current version of the cluster.
Ensure Node Group availability: Node Group must be in ACTIVE status and all nodes must be HEALTHY.
Stop running tasks: Stop running tasks on the cluster to avoid affecting the upgrade process.
While doing:
Monitor Node Group status: Monitor Node Group status during the upgrade process. Node Group status will change to UPDATING and after completion will return to ACTIVE.
Check system logs: Check system logs to detect any errors or warnings during the upgrade process.
After implementation:
Check Node Group Availability: Confirm that the Node Group has been upgraded successfully and all nodes are operating normally.
Test applications: Test applications running on the cluster to ensure they work properly after the upgrade.
Note:
Upgrading Node Group Version may take some time depending on the size and complexity of the Node Group.
In some rare cases, upgrading Node Group Version may fail. If this happens, the VKS system will automatically rollback the cluster to the current version.
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