Migrate your container to Azure Linux, Why?
Azure Linux is:

• Lightweight and Efficient: Optimized for performance on AKS, uses minimal resources, and ensures smooth cluster operation.
• Robust Security: Built and validated by Microsoft, undergoes comprehensive testing, and prioritizes stability.
• Enhanced Security Features: Includes a hardened kernel, receives regular security patches, and is the only AKS distribution fully compliant with CIS Level 1 benchmarks.

Learn more from Microsoft suggestion here :
https://learn.microsoft.com/en-us/azure/aks/azure-linux-aks-partner-solutions#migration

Learn more from CloudCasa on-demand webinar:
https://cloudcasa.io/webinar/seamless-migration-from-ubuntu-to-azure-linux-with-cloudcasa/

Details on Microsoft Azure Marketplace:
https://azuremarketplace.microsoft.com/en-us/marketplace/apps/catalogicsoftware1625626770507.cloudcasa-aks-app