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Kubernetes version upgrade

Updated

You may receive notifications from Microsoft that the version of Kubernetes in Azure for your Templafy Email Signature Server cluster will be deprecated. Upgrading the Kubernetes version is recommended to ensure continued support from Microsoft for your Azure Kubernetes Services cluster.

  Prerequisites

  • Global Administrator rights to the subscription that contains the Email Signature Server Kubernetes cluster.

  Important

  • Email Signature Server is currently validated with Kubernetes version 1.31.2 [major.minor.patch].
  • This upgrade will be performed in-place on the running cluster and should not interrupt service or mail flow.
  • You should always upgrade to the latest patch version available to your region.
  1. Click the current Kubernetes version link on the Overview of the templafyemailsigantureserver Kubernetes service.

    click_version.png

  2. Click Upgrade version.
  3. Select the Kubernetes version to upgrade to in the right-hand pane.
  4. Leave the default Upgrade control plane + all node pools radio button set.
  5. Click Save.

select_new_version.png

When upgrading to Kubernetes version >=1.25.0 for the first time the Microsoft UI will warn of some possible impactful changes that have been made in that version. These changes, shown below, have no impact on our solution.

k8s_upgrade_gt-1.25.0_warning.png

  Note

If Kubernetes fails to upgrade:

  • Confirm the tags associated with the templafy-emailsignatureserver public IP address.
  • Ensure your network firewall is not restricting necessary traffic.
FAQ ESS tech_role
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