apiVersion: v1
kind: LimitRange
metadata: 
  name: limit-resource
  namespace: apps
spec:
  limits:
  - default:
      memory: 1024Mi
      cpu: 500m
    defaultRequest:
      memory: 128Mi
      cpu: 100m
    max:
      memory: 2048Mi
      cpu: 1000m
    min:
      memory: 64Mi
      cpu: 50m
    type: Container

[root@maxiaoke local-k8s-yaml]# kubectl describe ns apps 
Name:         apps
Labels:       <none>
Annotations:  Status:  Active
No resource quota.
Resource Limits
 Type       Resource  Min   Max  Default Request  Default Limit  Max Limit/Request Ratio
 ----       --------  ---   ---  ---------------  -------------  -----------------------
 Container  cpu       50m   1    100m             500m           -
 Container  memory    64Mi  2Gi  128Mi            1Gi            -