What is Kubernetes Scheduling?

what is the scheduler for?

The Kubernetes scheduler is in charge of scheduling pods onto nodes. Basically it works like this:

  1. You create a pod
  2. The scheduler notices that the new pod you created doesn’t have a node assigned to it
  3. The scheduler assigns a node to the pod

It’s not responsible for actually running the pod – that’s the kubelet’s job. So it basically just needs to make sure every pod has a node assigned to it. Easy, right?

Kubernetes in general has this idea of a “controller”. A controller’s job is to:

The scheduler is a kind of controller. There are lots of different controllers and they all have different jobs and operate independently.

How Kubernetes Selects The Right node?


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