Proxmox Shutdown

#!/bin/bash
# Proxmox cluster shut down script, intended to shut down all vms and containers on each node,
# once they shut down signal all nodes that they are shut down safely, stop ceph, and shut down the node.
# Written as a shutdown script to be called from NUT.
#
# 2015/06/02 Erik Staab.

VM=$(qm list | awk '{if ($3 == "running") print $1}')
CT=$(pvectl list | awk '{if ($3 == "running") print $1}')
HOSTS=$(pvecm nodes | awk '{if ($1 != "Node") print $6}')

# check if there are running vms or containers and shut them down, if there are none set safeshutdown to 1
if [ -n "$VM" ] || [ -n "$CT" ]
then
        for vm in $VM; do
                qm shutdown $vm > /dev/null 2>&1
        done
        for ct in $CT; do
                pvectl shutdown $ct > /dev/null 2>&1
        done
        echo 0 > /etc/pve/nodes/`hostname`/safeshutdown
else
        echo 1 > /etc/pve/nodes/`hostname`/safeshutdown
fi

# if there are running vms or containers, hold in loop until they complete shutting down, once complete set own safeshutdown to 1
while [ -n "$VM" ] || [ -n "$CT" ]
do
        VM=$(qm list | awk '{if ($3 == "running") print $1}')
        CT=$(pvectl list | awk '{if ($3 == "running") print $1}')
        if [ -z "$VM" ] && [ -z "$CT" ]
        then
                echo 1 > /etc/pve/nodes/`hostname`/safeshutdown
        else
                sleep 10
        fi
done

# once the vms and containers are shut down check other hosts to see if they are safe to shut down
HOSTSREADY=0
while [ $HOSTSREADY == 0 ]
do
        ALLCLEAR=1
        for host in $HOSTS
        do
                if [ $host != `hostname` ]
                then
                        if [ $(cat /etc/pve/nodes/$host/safeshutdown) == "0" ]
                        then
                                ALLCLEAR=0
                        fi
                fi
        done
        if [ $ALLCLEAR == 1 ]
        then
                HOSTSREADY=1
        else
                sleep 30
        fi
done

# if all the hosts are ready to shut down, stop ceph, and shut down the node
if [ $HOSTSREADY == 1 ]
then
        /usr/bin/ceph osd set noout
        /usr/sbin/service ceph stop
        /sbin/shutdown -h now
fi