Containers

While Kubernetes orchestration does not allow direct manipulation on a container level, we can manage the resources containers are allowed to consume.

In the resources section of the PodSpec you can pass parameters which will be passed to the container runtime on the scheduled node:

resources:
  limits: 
    cpu: "1"
    memory: "4Gi" 
  requests:
    cpu: "0.5"
    memory: "500Mi"

Another way to manage resource usage of the containers is by creating a ResourceQuota object, which allows hard and soft limits to be set in a namespace. The quotas allow management of more resources than just CPU and memory and allows limiting several objects.

A beta feature in v1.12 uses the scopeSelector field in the quota spec to run a pod at a specific priority if it has the appropriate priorityClassName in its pod spec.