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Rename a node

#!/usr/bin/bash

mkdir -p /tmp/qemu ## make temp dir for moving VM config files
cp /etc/pve/nodes/$original_hostname/qemu-server/* /tmp/qemu/

hostnamectl set-hostname "$new_hostname"
sed -i "s/$original_hostname/$new_hostname/g" /etc/hosts

services=("pveproxy.service" "pvebanner.service" "pve-cluster.service" "pvestatd.service" "pvedaemon.service")
for service in "${services[@]}"
do
systemctl restart "$service"
done

rm -rf "/etc/pve/nodes/$original_hostname"
cp /tmp/qemu/* /etc/pve/nodes/$new_hostname/qemu-server/
rm /tmp/qemu/*

Copy the contents of /var/lib/rrdcached/db/pve2-{node,storage}/old-hostname to /var/lib/rrdcached/db/pve2-{node,storage}/new-hostname and remove the old directory.

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