ceph-ansible/contrib/snapshot_vms.sh

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#!/bin/bash
create_snapshots() {
local pattern=$1
for vm in $(sudo virsh list --all | awk "/${pattern}/{print \$2}"); do
sudo virsh shutdown "${vm}"
wait_for_shutoff "${vm}"
sudo virsh snapshot-create "${vm}"
sudo virsh start "${vm}"
done
}
delete_snapshots() {
local pattern=$1
for vm in $(sudo virsh list --all | awk "/${pattern}/{print \$2}"); do
for snapshot in $(sudo virsh snapshot-list "${vm}" --name); do
echo "deleting snapshot ${snapshot} (vm: ${vm})"
sudo virsh snapshot-delete "${vm}" "${snapshot}"
done
done
}
revert_snapshots() {
local pattern=$1
for vm in $(sudo virsh list --all | awk "/${pattern}/{print \$2}"); do
echo "restoring last snapshot for ${vm}"
sudo virsh snapshot-revert "${vm}" --current
sudo virsh start "${vm}"
done
}
wait_for_shutoff() {
local vm=$1
local retries=60
local delay=2
until test "${retries}" -eq 0
do
echo "waiting for ${vm} to be shut off... #${retries}"
sleep "${delay}"
let "retries=$retries-1"
local current_state=$(sudo virsh domstate "${vm}")
test "${current_state}" == "shut off" && return
done
echo couldnt shutoff "${vm}"
exit 1
}
while :; do
case $1 in
-d|--delete)
delete_snapshots "$2"
exit
;;
-i|--interactive)
INTERACTIVE=TRUE
;;
-s|--snapshot)
create_snapshots "$2"
;;
-r|--revert)
revert_snapshots "$2"
;;
--)
shift
break
;;
*)
break
esac
shift
done