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Kubernetes Security: Misconfigured Cluster
Introduction
In Kubernetes, a cluster is essentially a group of nodes that are responsible for operating an application that is containerized. In addition to their other name, worker nodes, these nodes are the ones that host the pods. These clusters will be of great assistance in the process of running several machines in various sorts of environments, including virtual, cloud, on premises, and so on.
Only through the usage of clusters is it feasible for users of Kubernetes to spread their nodes into several pools in which they can simultaneously run an entirely separate set of apps. Clusters are an essential component of Kubernetes. For instance, a user can operate web services on one node of a cluster by dividing it up into two or more nodes, and on another node, the user can run any application that is responsible for cloud monitoring.
Every cluster is composed of a master node and at least one worker node. The API-Server, the scheduler, or the controller manager are all components of the master node. On the other hand, the Kubelet and the Kube-proxy are components of the worker node. Therefore, within a cluster, there are a few different components that have the potential to be contaminated, and these various components appear to be significant from a safety point of view. Let’s us discuss it in detail: