LimitRange (limits)

• Enforce min or max resource usage or storage usage per container for a given namespace
• Enforce ratio between request and limit

• Enforce default resource limits and resource requests

• It's different from ResourceQuota that defines the total resources in a namespace

apiVersion: v1
kind: LimitRange
metadata:
  name: my-limit-range
  namespace: dev # to which ns these rules apply
spec:
  limits:
    - type: Container # resource rules per containers
      defaultRequest: # request
        memory: 256Mi # defaults to same as the limit
        cpu: 0.5 # defaults to same as the limit
      default: # limit
        memory: 512Mi # defaults the namespace default
        cpu: 1 # defaults to 1000m