Public Preview: Azure Virtual Network Verifier for AKS (VNV) for AKS

Azure Virtual Network Verifier for AKS, now in public preview and available through the Azure Portal, is a tool which allows you to detect and troubleshoot outbound connectivity issues in your AKS cluster.  

You can use the Virtual Network Verifier feature to run a connectivity analysis to check the traffic flow between your cluster and a public egress endpoint (for example, mcr.microsoft.com). The analysis results will detect any misconfigured Azure networking resources which may be blocking outbound traffic such as Azure firewall, network security groups (NSG), and load balancers.  

Learn more.