Hype-2/functions/fdisks.py

82 lines
3.6 KiB
Python

import os
from config import *
from xml.dom import minidom
import subprocess
from functions.fpool import *
def get_volume_disk(disk_path):
refresh_pool()
vol_disk = conn.storageVolLookupByPath(disk_path)
vol_size = vol_disk.info()[1]
vol_size_G = vol_size / (1024*1024*1024)
return vol_size_G
def get_disks_info(vm_name):
disks = []
dom = conn.lookupByName(vm_name)
raw_xml = dom.XMLDesc(0)
xml = minidom.parseString(raw_xml)
diskTypes = xml.getElementsByTagName('disk')
for diskType in diskTypes:
if diskType.getAttribute('device') == 'disk':
disk_unit = []
disk_id = 'Unknown'
diskNodes = diskType.childNodes
for diskNode in diskNodes:
if diskNode.nodeName == 'target':
for attr in diskNode.attributes.keys():
if diskNode.attributes[attr].name == 'dev':
disk_id = diskNode.attributes[attr].value
if diskNode.nodeName == 'source':
for attr in diskNode.attributes.keys():
if diskNode.attributes[attr].name == 'file':
blkinf = dom.blockInfo(diskNode.attributes[attr].value)
vol_size = os.path.getsize(diskNode.attributes[attr].value)
diskname = os.path.basename(diskNode.attributes[attr].value)
volsize = get_volume_disk(diskNode.attributes[attr].value)
disksize = round(blkinf[0] / 1024**3)
diskused = round(blkinf[1] / 1024**3)
if disksize > 0:
diskpercent = (diskused*100 / disksize)
else:
diskpercent = 0
disk_unit = [diskNode.attributes[attr].value,disksize,diskused,diskpercent,diskname,int(volsize)]
if diskNode.nodeName == 'target':
for attr in diskNode.attributes.keys():
if diskNode.attributes[attr].name == 'dev':
disk_id = diskNode.attributes[attr].value
disk_unit.append(disk_id)
disks.append(disk_unit)
return disks
def create_attached_disk(vm_name,disk_name,disk_size,disk_id):
cmd = "qemu-img create -f qcow2 "+str(disk_path)+str(disk_name)+".qcow2 "+str(disk_size)+"G"
subprocess.call(cmd, shell=True)
dom = conn.lookupByName(vm_name)
if not dom.isActive():
dom.create()
disk_full = disk_path+disk_name+".qcow2"
cmd = "virsh attach-disk --domain "+vm_name+" "+disk_full+" --target "+disk_id+" --persistent --config --live"
subprocess.call(cmd, shell=True)
refresh_pool()
def resize_disk(disk_file,actual_size,new_size,vm_name,disk_id):
cmd = "virsh detach-disk '"+vm_name+"' "+disk_file+" --persistent --config --live"
subprocess.call(cmd, shell=True)
if int(actual_size) < int(new_size):
cmd = "qemu-img resize -f qcow2 "+str(disk_file)+" "+str(new_size)+"G"
subprocess.call(cmd, shell=True)
else:
cmd = "qemu-img resize -f qcow2 --shrink "+str(disk_file)+" "+str(new_size)+"G"
subprocess.call(cmd, shell=True)
cmd = "virsh attach-disk '"+str(vm_name)+"' "+str(disk_file)+" "+str(disk_id)+" --cache none --persistent --config --live"
subprocess.call(cmd, shell=True)
refresh_pool()
def detach_disk(vm_name,diskfile):
cmd = "virsh detach-disk '"+str(vm_name)+"' "+str(diskfile)+" --persistent --config --live"
subprocess.call(cmd, shell=True)
refresh_pool()