Here is a list of items we need to add pod priority and preemption. These items are not the same size and some may need more work. We can break those down later into smaller tasks if needed.

• Add a design doc to add priority to Kubernetes API.
• Add pod priority
  • Add priority fields to PodSpec.
  • Add PriorityClass API object.
  • Add an Admission Controller for priority.
• Add a design doc for priority-based preemption.
• Incorporate priority in pod scheduling logic (to fix the starvation problem)
• Support PodDisruptionBudget in preemption.
• Add priority-base preemption to scheduler.
• Quota per priority
  • Add priority fields to ResourceQuota.
  • Incorporate priority in quota checks.
• Add documentation on how to use pod priority and its effects on behavior of the system.