Pod资源需求和资源限制

[root@master resource]# kubectl apply -f resource-requests-demo.yaml 
[root@master resource]# cat resource-requests-demo.yaml 
apiVersion: v1
kind: Pod
metadata:
  name: stress-pod
spec:
  containers:
  - name: stress
    image: ikubernetes/stress-ng
    command: ["/usr/bin/stress-ng","-c 1", "-m 1", "--metrics-brief"]
    resources:
      requests:
        memory: "128Mi"
        cpu: "200m"
#      limits:
#        memory: "512Mi"
#        cpu: "400m"

CPU使用率是48%，因为我的node是2颗CPU，这个容器最多只能跑满一颗核心

内存 262M 代表这个进程限制了 最多占用这么多 

[root@master resource]# cat resource-requests-demo.yaml 
apiVersion: v1
kind: Pod
metadata:
  name: stress-pod
spec:
  containers:
  - name: stress
    image: ikubernetes/stress-ng
    command: ["/usr/bin/stress-ng","-c 1", "-m 1", "--metrics-brief"]
    resources:
      requests:
        memory: "128Mi"
        cpu: "200m"
      limits:
        memory: "512Mi"
        cpu: "500m"