AKS security best practices
There are multiple attack vectors that an adversary could exploit to compromise our AKS instances. For this reason, our security strategy should follow a defense-in-depth approach that includes multiple layers of protection. In the following sections, we will cover some of these layers.
Limiting access to the API server using authorized IP address ranges
The Kubernetes API server is the central management endpoint for an AKS cluster. Developers and administrators use client management tools, such as kubectl, to connect to it to perform cluster operations such as deploying applications, creating cluster objects, and scaling the number of nodes.
By default, the API server uses a public IP address with access to any IP address. From a security perspective, our objective should be to minimize any attacks on the Kubernetes control plane components. One way to do this is to limit the IP addresses that can communicate with the API server using the authorized...
