Create a namespace with your name and assigne one dummy resourcesquota to it and deploy some app

[centos@ip-172-31-15-134 ~]$ kubectl create ns raju
namespace/raju created


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


kubectl apply -f resource.yaml -n raju
resourcequota/mem-cpu-demo created
kubectl get resourcequota mem-cpu-demo --namespace=raju
NAME           AGE    REQUEST                                     LIMIT
mem-cpu-demo   2m2s   requests.cpu: 0/1, requests.memory: 0/1Gi   limits.cpu: 0/2, limits.memory: 0/2Gi
[centos@ip-172-31-15-134 raju]$ kubectl apply -f https://k8s.io/examples/admin/resource/quota-mem-cpu-pod.yaml --namespace=raju
Error from server (Forbidden): error when creating "https://k8s.io/examples/admin/resource/quota-mem-cpu-pod.yaml": pods "quota-mem-cpu-demo" is forbidden: exceeded quota: mem-cpu-demo, requested: requests.memory=600Mi, used: requests.memory=700Mi, limited: requests.memory=1Gi

Got error when resource is exceeded.



Name:         raju
Labels:       kubernetes.io/metadata.name=raju
Annotations:  <none>
Status:       Active

Resource Quotas
  Name:            mem-cpu-demo
  Resource         Used   Hard
  --------         ---    ---
  limits.cpu       800m   2
  limits.memory    1Gi    2Gi
  requests.cpu     400m   1
  requests.memory  700Mi  1Gi

No LimitRange resource.