Setting resource requests

Setting a low memory limit can lead to Out Of Memory kills of your application.

Setting resource requests can prevent Out of Memory (OOM) and CPU throttling for your workloads. It’s usually best to not set CPU limits. See memory vs cpu for more details.

Memory Requests & Limits


apiVersion: apps/v1
kind: Deployment
metadata:
  name: reference-app
  labels:
    app.kubernetes.io/name: reference-app
spec:
  template:
    spec:
      containers:
        - name: reference-app
          resources:
            requests:
              memory: "512Mi"
            limits:
              memory: "1Gi"

CPU Requests & Limits


apiVersion: apps/v1
kind: Deployment
metadata:
  name: reference-app
  labels:
    app.kubernetes.io/name: reference-app
spec:
  template:
    spec:
      containers:
        - name: reference-app
          resources:
            requests:
              cpu: "200m"
            limits:
              cpu: "500m"