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koza/memory

By koza

•Updated almost 6 years ago

test docker memory

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koza/memory repository overview

⁠memory

我们测k8s节点根据内存的资源，驱逐POD，需要精确模拟POD占用的内存。使用下面的方法，逐渐增加POD的内存，使其达到驱逐POD。

##部署

kubectl apply -f ./deployment.yaml

默认，POD占用50Mi内存：

$ kubectl top pod
NAME                       CPU(cores)   MEMORY(bytes)   
memory-5c6b8d97d-rj689     1m           53Mi

你可以在deployment.yaml中覆盖默认占用的内存，如设置为200Mi：

containers:
  - name: memory
    image: koza/memory:latest
    command: ["python2","start.py","200"]

$ kubectl top pod
NAME                       CPU(cores)   MEMORY(bytes)   
memory-5c6b8d97d-rj689     1m           203Mi

你还可以在POD启动后，进入容器，增加内存：

$ kubectl exec -it memory-5c6b8d97d-rj689 -- bash
root@memory-5c6b8d97d-rj689:/# python2 ./start.py 100

$ kubectl top pod
NAME                     CPU(cores)   MEMORY(bytes)   
memory-5c6b8d97d-rj689   1m           309Mi

Tag summary

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324 MB

Last updated

almost 6 years ago

docker pull koza/memory