Microsoft just officially announced the availability of Azure Linux 3.0 for Azure Kubernetes Service (AKS), which is available as a preview in AKS version 1.31; Azure Linux 3.0 was released a few months ago on GitHub. You can view the release notes from here.
Azure Linux 3.0 comes three years after Azure Linux 2.0 (aka Mariner) and includes several upgrades to its main components. For example, the Linux Kernel has gone from version 5.15 to 6.6, Containerd has been upgraded from version 1.6.26 to 1.7.13, SystemD has been upgraded from version 250 to 255, and OpenSSL has gone from version 1.1.1. 3.3.0k on XNUMX.
If you want to use the Azure Linux 3.0 preview in AKS 1.31, you'll need to flag the new feature in your Azure subscription with the command below:
az feature register –namespace Microsoft.ContainerService –name AzureLinuxV3Preview
Then you can verify the registration status with the command below. It will take a few minutes to show the status as Registered:
az feature show –namespace Microsoft.ContainerService –name AzureLinuxV3Preview
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