140 lines
4.9 KiB
Python
140 lines
4.9 KiB
Python
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 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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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, storage, n_of_ipv4, n_of_ipv6):
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storage = storage / 10 # Division by 10 because our base storage unit is 10 GB
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total = 3 * core + 4 * ram + 3.5 * storage + 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 create_disk_and_image(one_vm, vm_product):
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for disk in one_vm.disks:
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owner = one_vm.owner
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name = disk.get('image')
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# TODO: Fix the following hard coded values
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is_os_image, is_public, status = True, True, '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('pool_name')
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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': 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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VMDiskProduct.objects.update_or_create(
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owner=owner, vm=vm_product,
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defaults={
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'image': image,
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'size_in_gb': disk_size_in_gb
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}
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)
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class Command(BaseCommand):
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help = 'Migrate Opennebula VM to regular (uncloud) vm'
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def handle(self, *args, **options):
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for one_vm in VMModel.objects.all():
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# Host on which the VM is currently residing
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host = VMHost.objects.filter(vms__icontains=one_vm.vmid).first()
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# VCPU, RAM, Owner, Status
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# TODO: Set actual status instead of hard coded 'active'
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vm_id, cores, ram_in_gb = one_vm.vmid, one_vm.cores, one_vm.ram_in_gb
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owner, status = one_vm.owner, 'active'
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# Total Amount of SSD Storage
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# TODO: What would happen if the attached storage is not SSD but HDD?
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total_storage_in_gb = sum([disk['size_in_gb'] for disk in one_vm.disks])
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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 = ending_date = datetime.now(tz=timezone.utc)
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# Price calculation
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# TODO: Make the following non-hardcoded
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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, total_storage_in_gb, len(ipv4), len(ipv6))
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try:
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vm_product = VMProduct.objects.get(vmid=vm_id)
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except VMProduct.DoesNotExist:
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order = Order.objects.create(
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owner=one_vm.owner,
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creation_date=creation_date,
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starting_date=starting_date,
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ending_date=ending_date,
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one_time_price=one_time_price,
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recurring_price=recurring_price,
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recurring_period=recurring_period
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)
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vm_product, _ = VMProduct.objects.update_or_create(
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vmid=vm_id,
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defaults={
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'cores': cores,
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'ram_in_gb': ram_in_gb,
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'owner': owner,
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'vmhost': host,
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'order': order,
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'status': status
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}
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)
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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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create_disk_and_image(one_vm, vm_product)
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