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Appendix G: ResourceQuota Example

Create a ResourceQuota object to limit overall resource usage within a namespace by applying a YAML file to the namespace or specifying requirements in the Pod's configuration file. The following example is an example of a namespace configuration file based on Kubernetes official documentation:

apiVersion: v1
kind: ResourceQuota
metadata:
   name: example-cpu-mem-resourcequota
spec:
   hard:
     requests.cpu: "1"
     requests.memory: 1Gi
     limits.cpu: "2"
     limits.memory: 2Gi

This ResourceQuota can be applied like this:

kubectl apply -f example-cpu-mem-resourcequota.yaml -- namespace=<insert-namespace-here>

This ResourceQuota imposes the following restrictions on the selected namespace:

  • Each container must have a memory request, memory limit, CPU request, and CPU limit.
  • Total memory requests across all containers should not exceed 1 GiB
  • The total memory limit for all containers should not exceed 2 GiB
  • Total CPU requests for all containers should not exceed 1 CPU
  • The total CPU limit for all containers should not exceed 2 CPUs