Refresher – What is kube-scheduler?

In Kubernetes clusters, kube-scheduler is a component of the control plane that runs on Master Nodes. The main responsibility of this component is scheduling container workloads (Pods) and assigning them to healthy worker Nodes that fulfill the criteria required for running a particular workload. To recap, a Pod is a group of one or more containers with a shared network and storage and is the smallest deployment unit in the Kubernetes system. You usually use different Kubernetes controllers, such as Deployment objects and StatefulSet objects, to manage your Pods, but it is kube-scheduler that eventually assigns the created Pods to particular Nodes in the cluster.

Important note

For managed Kubernetes clusters in the cloud, such as the managed Azure Kubernetes Service or the Amazon Elastic Kubernetes Service, you normally do not have access to the Master Nodes, as they are managed by the cloud service provider for you. This means you...