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Upgrading the EKS version

Upgrade the Elastic Kubernetes Service (EKS) version for AWS
AWS frequently updates the version of EKS based on new features that are available in the Kubernetes platform. DuploCloud automates this upgrade in the DuploCloud Portal.
IMPORTANT: An EKS version upgrade can cause downtime to your application depending on the number of replicas you have configured for your services. Schedule this upgrade outside of your business hours to minimize disruption.

About the upgrade process

The upgrade process:
  • Updates the EKS Control Plane to the latest version
  • Relaunches all Hosts to deploy the latest version on all nodes.
After the upgrade process completes successfully, you optionally assign allocation tags to Hosts.

Starting the upgrade

To upgrade the EKS version, in the DuploCloud Portal:
  1. 1.
    Click Administrator -> Infrastructure.
  2. 2.
    Select the Infrastructure that you want to upgrade to the latest EKS version.
  3. 3.
    Select the EKS tab. If an Infrastructure upgrade is available, an Upgrade link appears in the Value column.
    EKS tab with Upgrade available
  4. 4.
    Click the Upgrade link. The Upgrade EKS Cluster pane displays.
    Upgrade EKS Cluster pane
  5. 5.
    From the Target Version list box, select the version to which you want to upgrade.
  6. 6.
    From the Host Upgrade Action, select the method by which you want to upgrade hosts.
  7. 7.
    Click Create. The upgrade process begins.

Monitoring the upgrade

The EKS Upgrade Details page displays that the upgrade is In Progress.
EKS Upgrade Details page displaying upgrade In Progress
Find more details about the upgrade by selecting your Infrastructure from the Infrastructure page. Click the EKS tab, and then click Show Details.
Show Details button on the Infrastructure EKS tab with upgrade in progress

Upgrade completion

When you click Show Details, the EKS Upgrade Details page displays the progress of updates for all versions and Hosts. Green checkmarks indicate successful completion in the Status list. Red Xs indicate Actions you must take to complete the upgrade process.
EKS Upgrade Details window with Status list and Actions to be performed

Assign allocation tags

If any of your Hosts use allocation tags, you must assign allocation tags to the Hosts:
  1. 1.
    After your Hosts are online and available, navigate to Cloud Services -> Hosts.
  2. 2.
    Select the host group tab (EC2, ASG, etc.) on the Hosts screen.
  3. 3.
    Click the Add button.
  4. 4.
    Name the Host and provide other configuration details on the Add Host form.
  5. 5.
    Select Advanced Options.
  6. 6.
    Edit the Allocation Tag field.
  7. 7.
    Click Create and define your allocation tags.
  8. 8.
    Click Add to assign the allocation tags to the Host.
Allocation tags in the Add Host screen