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#!@ENV_ABSOLUTE_PATH@ bash
set -eufo pipefail
command -v kubectl >/dev/null 2>&1 || { echo 'Please install kubectl'; exit 1; }
USAGE="Usage: $(basename "$0") <node-name> [-r|--reboot]"
[ $# -eq 0 ] && { echo "$USAGE"; exit 1; }
[[ "$1" =~ ^-h|--help$ ]] && { echo "$USAGE"; exit 0; }
NODE_REBOOT=0
NODE_NAME=${1:-}; shift
if [[ $# -gt 0 ]]; then
if [[ "$1" =~ ^-r|--reboot$ ]]; then
NODE_REBOOT=1; shift
else
echo "$USAGE"; exit 1
fi
fi
kubectl apply -f - <<-EOF > /dev/null
---
apiVersion: v1
kind: Pod
metadata:
name: krash-${RANDOM}
spec:
containers:
- name: krash
image: alpine:latest
securityContext:
privileged: true
command:
- /bin/sh
- -c
- |
sysctl -w kernel.panic=${NODE_REBOOT}
echo 'c' > /proc/sysrq-trigger
priorityClassName: system-node-critical
nodeName: ${NODE_NAME}
EOF
# vim: ft=sh
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