194 lines
6.7 KiB
Python
194 lines
6.7 KiB
Python
import sys
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from datetime import datetime
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from django.core.management.base import BaseCommand
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from django.utils import timezone
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from django.contrib.auth import get_user_model
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from opennebula.models import VM as VMModel
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from uncloud_vm.models import VMHost, VMProduct, VMNetworkCard, VMDiskImageProduct, VMDiskProduct
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from uncloud_pay.models import Order
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import logging
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log = logging.getLogger(__name__)
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def convert_mac_to_int(mac_address: str):
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# Remove octet connecting characters
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mac_address = mac_address.replace(':', '')
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mac_address = mac_address.replace('.', '')
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mac_address = mac_address.replace('-', '')
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mac_address = mac_address.replace(' ', '')
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# Parse the resulting number as hexadecimal
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mac_address = int(mac_address, base=16)
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return mac_address
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def get_vm_price(core, ram, ssd_size, hdd_size, n_of_ipv4, n_of_ipv6):
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total = 3 * core + 4 * ram + (3.5 * ssd_size/10.) + (1.5 * hdd_size/100.) + 8 * n_of_ipv4 + 0 * n_of_ipv6
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# TODO: Find some reason about the following magical subtraction.
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total -= 8
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return total
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def create_nics(one_vm, vm_product):
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for nic in one_vm.nics:
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mac_address = convert_mac_to_int(nic.get('MAC'))
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ip_address = nic.get('IP', None) or nic.get('IP6_GLOBAL', None)
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VMNetworkCard.objects.update_or_create(
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mac_address=mac_address, vm=vm_product, defaults={'ip_address': ip_address}
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)
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def sync_disk_and_image(one_vm, vm_product, disk_owner):
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"""
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a) Check all opennebula disk if they are in the uncloud VM, if not add
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b) Check all uncloud disks and remove them if they are not in the opennebula VM
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"""
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vmdisknum = 0
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one_disks_extra_data = []
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for disk in one_vm.disks:
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vmowner = one_vm.owner
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name = disk.get('image')
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vmdisknum += 1
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log.info("Checking disk {} for VM {}".format(name, one_vm))
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is_os_image, is_public, status = True, False, 'active'
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image_size_in_gb = disk.get('image_size_in_gb')
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disk_size_in_gb = disk.get('size_in_gb')
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storage_class = disk.get('storage_class')
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image_source = disk.get('source')
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image_source_type = disk.get('source_type')
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image, _ = VMDiskImageProduct.objects.update_or_create(
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name=name,
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defaults={
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'owner': disk_owner,
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'is_os_image': is_os_image,
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'is_public': is_public,
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'size_in_gb': image_size_in_gb,
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'storage_class': storage_class,
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'image_source': image_source,
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'image_source_type': image_source_type,
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'status': status
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}
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)
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# identify vmdisk from opennebula - primary mapping key
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extra_data = {
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'opennebula_vm': one_vm.vmid,
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'opennebula_size_in_gb': disk_size_in_gb,
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'opennebula_source': disk.get('opennebula_source'),
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'opennebula_disk_num': vmdisknum
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}
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# Save for comparing later
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one_disks_extra_data.append(extra_data)
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try:
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vm_disk = VMDiskProduct.objects.get(extra_data=extra_data)
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except VMDiskProduct.DoesNotExist:
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vm_disk = VMDiskProduct.objects.create(
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owner=vmowner,
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vm=vm_product,
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image=image,
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size_in_gb=disk_size_in_gb,
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extra_data=extra_data
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)
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# Now remove all disks that are not in above extra_data list
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for disk in VMDiskProduct.objects.filter(vm=vm_product):
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extra_data = disk.extra_data
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if not extra_data in one_disks_extra_data:
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log.info("Removing disk {} from VM {}".format(disk, vm_product))
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disk.delete()
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disks = [ disk.extra_data for disk in VMDiskProduct.objects.filter(vm=vm_product) ]
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log.info("VM {} has disks: {}".format(vm_product, disks))
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class Command(BaseCommand):
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help = 'Migrate Opennebula VM to regular (uncloud) vm'
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def add_arguments(self, parser):
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parser.add_argument('--disk-owner', required=True, help="The user who owns the the opennebula disks")
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def handle(self, *args, **options):
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log.debug("{} {}".format(args, options))
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disk_owner = get_user_model().objects.get(username=options['disk_owner'])
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for one_vm in VMModel.objects.all():
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if not one_vm.last_host:
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log.warning("No VMHost for VM {} - VM might be on hold - skipping".format(one_vm.vmid))
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continue
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try:
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vmhost = VMHost.objects.get(hostname=one_vm.last_host)
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except VMHost.DoesNotExist:
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log.error("VMHost {} does not exist, aborting".format(one_vm.last_host))
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raise
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cores = one_vm.cores
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ram_in_gb = one_vm.ram_in_gb
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owner = one_vm.owner
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status = 'active'
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ssd_size = sum([ disk['size_in_gb'] for disk in one_vm.disks if disk['pool_name'] in ['ssd', 'one'] ])
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hdd_size = sum([ disk['size_in_gb'] for disk in one_vm.disks if disk['pool_name'] in ['hdd'] ])
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# List of IPv4 addresses and Global IPv6 addresses
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ipv4, ipv6 = one_vm.ips
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# TODO: Insert actual/real creation_date, starting_date, ending_date
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# instead of pseudo one we are putting currently
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creation_date = starting_date = datetime.now(tz=timezone.utc)
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# Price calculation based on datacenterlight.ch
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one_time_price = 0
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recurring_period = 'per_month'
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recurring_price = get_vm_price(cores, ram_in_gb,
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ssd_size, hdd_size,
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len(ipv4), len(ipv6))
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try:
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vm_product = VMProduct.objects.get(extra_data__opennebula_id=one_vm.vmid)
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except VMProduct.DoesNotExist:
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order = Order.objects.create(
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owner=owner,
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creation_date=creation_date,
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starting_date=starting_date
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)
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vm_product = VMProduct(
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extra_data={ 'opennebula_id': one_vm.vmid },
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name=one_vm.uncloud_name,
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order=order
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)
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# we don't use update_or_create, as filtering by json AND setting json
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# at the same time does not work
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vm_product.vmhost = vmhost
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vm_product.owner = owner
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vm_product.cores = cores
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vm_product.ram_in_gb = ram_in_gb
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vm_product.status = status
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vm_product.save()
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# Create VMNetworkCards
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create_nics(one_vm, vm_product)
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# Create VMDiskImageProduct and VMDiskProduct
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sync_disk_and_image(one_vm, vm_product, disk_owner=disk_owner)
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