Summary

This chapter has given an overview of advanced techniques for Pod scheduling in Kubernetes. First, we recapped the theory behind kube-scheduler implementation. We have explained the process of scheduling Pods. Next, we introduced the concept of Node affinity in Pod scheduling. You learned the basic scheduling methods which use Node names and Node selectors, and based on that we have explained how more advanced Node affinity works. We also explained how you can use the affinity concept to achieve anti-affinity, and what inter-Pod affinity/anti-affinity is. After that, we discussed taints for Nodes and tolerations specified by Pods. You learned about some different effects of the taints, and have put the knowledge into practice in an advanced use case involving NoExecute and NoSchedule taints on a Node. Lastly, we discussed the theory behind scheduler policies that can be used to configure the default kube-scheduler.

In the next chapter, we are going to discuss autoscaling...