Legacy Authentication in Azure Monitor - Container
Insights will be retired on September 30, 2026. Legacy authentication has been replaced by the
more secure Managed Identity
authentication method. Migrating to Managed Identity also gives customers
access to newer Container Insights features like Syslog collection and High
Scale mode which are available only with Managed Identity.
Required action
Customers must migrate to the new Managed Identity authentication
before September 30, 2026. Customers can migrate their clusters with a single
click from the Azure portal. Azure Monitor documentation also has command line
options and a bulk migration script.
Please
see migration guidance here.