How to simulate Power Failure In Kubernetes

Question

I have my rook-cephcluster running on AWS. Its loaded up with data. Is there's any way to stimulate POWER FAILURE so that I can test the behaviour of my cluster?.

Answer 1

From Docker you can send KILL signal "SIGPWR" that Power failure (System V)

docker kill --signal="SIGPWR"

and from Kubernet

kubectl exec <pod> -- /killme.sh

and so scriplt killme.sh

beginning of script-----
#!/bin/bash
# Define process to find
kiperf=$(pidof iperf)
# Kills all iperf or command line
kill -30 $kiperf
script end -------------

signal 30 you can find here