AKS infrastructure
AKS is an entire world within the Azure universe. This is by no means a service like the others. It is a partly managed service, as shown in Figure 3.18.
Figure 3.18 – AKS, a semi-managed service
The control plane is the brain of AKS, and it is fully managed by Microsoft for free. Your duty as an Azure infrastructure architect is to take care of the worker nodes, which are plain virtual machines, connected to the brain via kubelet, the Kubernetes (K8s) primary node agent. It runs on each node, and the agent registers the node with the API server automatically. Rest assured, Azure comes with pre-defined node images, and you do not have to build the worker nodes yourself, just manage them. Although self-hosting a K8s cluster is even more demanding, you should not neglect the number of operations left to the cloud consumer when working with AKS. Unlike a fully managed PaaS or FaaS service, AKS requires special care and upfront analysis...
