Limit and Quota Management
Contents
Per container
Documentation
Terminology
- memory/cpu request: amount of resources that a container is guaranted to obtain (but it can try using more). This information is used for pod scheduling on nodes
- memory/cpu limit: strong resource limit which triggers container destruction
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
run: stressmeout
name: stressmeout
spec:
replicas: 1
selector:
matchLabels:
run: stressmeout
template:
metadata:
labels:
run: stressmeout
spec:
containers:
- image: vish/stress
name: stressmeout
resources:
limits:
cpu: "1"
memory: "1Gi"
requests:
cpu: "0.5"
memory: "500Mi"
args:
- -cpus
- "2"
- -mem-total
- "1950Mi"
- -mem-alloc-size
- "100Mi"
- -mem-alloc-sleep
- "1s"
Other
Per namespace quota.
- Compute Resource Quota We can limit the total sum of compute resources (CPU, memory, etc.) that can be requested in a given Namespace.
- Storage Resource Quota We can limit the total sum of storage resources (PersistentVolumeClaims, requests.storage, etc.) that can be requested.
- Object Count Quota We can restrict the number of objects of a given type (pods, ConfigMaps, PersistentVolumeClaims, ReplicationControllers, Services, Secrets, etc.).