I am working on a new scheduler's stress test in Kubernetes. I need to open a lot of CPU and memory pods to analyze performance.
I am using image: polinux/stress in my pods. I would like to ask if there is any instruction, or when I write the yaml file, I can set this successfully generated pod to delete itself within the time set by me.
The following yaml file is the pod I am writing for stress testing. I would like to ask if I can write it from here to let him delete it after a period of time.
apiVersion: v1
kind: Pod
metadata:
name: alltest12
namespace: test
spec:
containers:
- name: alltest
image: polinux/stress
resources:
requests:
memory: "1000Mi"
cpu: "1"
limits:
memory: "1000Mi"
cpu: "1"
command: ["stress"]
args: ["--vm", "1", "--vm-bytes", "500M", "--vm-hang", "1"]If polinux/stress contains a shell, I believe you can have the thing kill itself:
- containers:
image: polinux/stress
command:
- sh
- -c
- |
sh -c "sleep 300; kill -9 1" &
stress --vm 1 --vm-bytes 500M --vm-hang 1Or even slightly opposite:
- |
stress --vm etc etc &
child_pid=$!
sleep 300
kill -9 $child_pidAnd you can parameterize that setup using env::
env:
- name: LIVE_SECONDS
value: "300"
command:
- sh
- -c
- |
sleep ${LIVE_SECONDS}
kill -9 $child_pid