def delete_snap(vmid, snapid):
"""
Using the VM ID and the Snapshot ID, delete the specified VM Snapshot
and be sure to check on its status (do not try to )
"""
snap_service = connection.service("vms/" + vmid + "/snapshots/" + snapid)
snap_service.remove()
status = get_snap_status(vmid, snapid)
while str(status) == "locked":
time.sleep(10)
printf.DEBUG(args.debug, "Waiting for deletion to finish")
status = get_snap_status(vmid, snapid)
def backup(vmid, snapid, disk_id, bkpid):
"""
Perform the actual backup of the virtual machine, including:
- Attaching the snapshot disk to the Backup VM
- Creating an image backup of the disk
- Deactivating the snapshot disk
- Removing the snapshot disk from the Backup VM
"""
printf.INFO(
args.debug,
"Attach snapshot disk to Backup VM {" + snapid + " | " + disk_id + "}")
attach_output = attach_disk(bkpid, disk_id, snapid)
printf.DEBUG(args.debug,
"Attach Output: " + str(attach_output.status_code))
# Updating attach status code output | If snapshot not attached, then remove
# the snapshot.
if attach_output.status_code != 201:
printf.ERROR(args.debug, "Error - Could not attach disk")
printf.ERROR(args.debug, "Trying to remove snapshot")
printf.INFO(
args.debug,
"Trying to delete snapshot " + snapid + " of " + args.hostname)
delete_snap(vmid, snapid)
printf.OK(args.debug, "Snapshot removed.")
sys.exit(10)
printf.INFO(args.debug,
"Identifying disk device (this might take a while)")
dev = get_logical_disk(bkpid, disk_id)
diskname = get_disk_name(vmid, snapid, disk_id)
printf.DEBUG(args.debug, "Dev: " + dev)
printf.DEBUG(args.debug, "Disk Name: " + diskname)
printf.INFO(args.debug, "Creating an image backup of the disk")
returncode = create_image_bkp(dev, diskname)
if returncode == 0:
printf.DEBUG(args.debug, "Image backup created successfully")
else:
printf.DEBUG(args.debug, "Image backup not created successfully")
printf.INFO(args.debug, "Deactivating the disk")
response = deactivate_disk(bkpid, disk_id)
printf.DEBUG(args.debug,
"Deactivate Response: " + str(response.status_code))
time.sleep(10)
printf.INFO(args.debug, "Detaching snapshot disk from " + args.backup_vm)
response = detach_disk(bkpid, disk_id)
printf.DEBUG(args.debug, "Detach Response: " + str(response.status_code))
time.sleep(10)
def create_snap(vmid, snapname):
"""
Create a snapshot for the specified VM
"""
vm_service = connection.service("vms")
snapshots_service = vm_service.vm_service(vmid).snapshots_service()
snapshots_service.add(
types.Snapshot(description=snapname, persist_memorystate=False))
snapid = get_snap_id(vmid)
status = get_snap_status(vmid, snapid)
while str(status) == "locked":
time.sleep(10)
status = get_snap_status(vmid, snapid)
printf.DEBUG(args.debug,
"Snapshot Creation Status (create_snap): " + str(status))
return str(status)
def get_logical_disk(bkpid, diskid):
"""
Return the logical disk
"""
dev = "None"
serial = diskid[0:20]
printf.DEBUG(args.debug, "Disk Serial: " + serial)
cmd = "grep -Rlw '" + serial + "' /sys/block/*/serial|awk -F '/' '{print $4}'"
while str(dev) == "None":
try:
path = subprocess.check_output(cmd, shell=True).replace("\n", "")
if path.startswith("vd") or path.startswith("sd"):
dev = "/dev/" + path
time.sleep(1)
except Exception as ex:
continue
return dev
except Exception as ex:
printf.ERROR(args.debug, "Connection to oVirt API has failed")
print ex
sys.exit(1)
###
### Retrieve VM
###
printf.INFO(args.debug, "Retrieving VM --> " + args.hostname)
vmid = get_vm_id(args.hostname)
if vmid is None:
printf.ERROR(args.debug, "Error retrieving " + args.hostname)
sys.exit(1)
else:
printf.OK(args.debug, "VM OK")
printf.DEBUG(args.debug, "VM ID: " + vmid)
###
### Retrieve Backup system
###
printf.INFO(args.debug, "Backup System --> " + args.backup_vm)
bkpid = get_vm_id(args.backup_vm)
if bkpid is None:
printf.ERROR(args.debug, "Error retrieving " + args.backup_vm)
sys.exit(2)
else:
printf.OK(args.debug, "Backup VM OK")
printf.DEBUG(args.debug, "Backup VM ID: " + bkpid)
###
### Create the snapshot