How to access a public URL from a private AKS cluster?

There are few other ways for a private AKS cluster to access a public url and Express Route is a great way to get this done.

To set up an ExpressRoute to access a public URL from a private AKS cluster, you need to follow these steps:

1. Create an ExpressRoute circuit: You can create an ExpressRoute circuit in the Azure portal, using Azure CLI, or using Azure PowerShell.
2. Create a virtual network gateway: You need to create a virtual network gateway to connect your virtual network to the ExpressRoute circuit.
3. Create a virtual network: You need to create a virtual network and configure it to use the virtual network gateway.
4. Create a private AKS cluster: You can create a private AKS cluster in the Azure portal, using Azure CLI, or using Azure PowerShell.
5. Connect the AKS cluster to the virtual network: You need to connect the AKS cluster to the virtual network.
6. Configure the network security group: You need to configure the network security group to allow traffic from the AKS cluster to the public URL.
7. Test the connection: You can test the connection by accessing the public URL from a pod in the AKS cluster.

About ExpressRoute virtual network gateways - Azure | Microsoft Learn