netbox/netbox/ipam/migrations/0083_ipaddress_iprange_prefix_parent_data.py
2025-07-09 10:52:24 -05:00

130 lines
3.6 KiB
Python

# Generated by Django 5.0.9 on 2025-02-20 16:49
import sys
import time
from django.db import migrations, models
from ipam.choices import PrefixStatusChoices
def draw_progress(count, total, length=20):
if total == 0:
return
progress = count / total
percent = int(progress * 100)
bar = int(progress * length)
sys.stdout.write('\r')
sys.stdout.write(f"[{'=' * bar:{length}s}] {percent}%")
sys.stdout.flush()
def set_prefix(apps, schema_editor, model, attr='address', parent_model='Prefix'):
start = time.time()
ChildModel = apps.get_model('ipam', model)
ParentModel = apps.get_model('ipam', parent_model)
addresses = ChildModel.objects.all()
total = addresses.count()
if total == 0:
return
print('\r\n')
i = 0
draw_progress(i, total, 50)
for address in addresses:
i += 1
address_attr = getattr(address, attr)
prefixes = ParentModel.objects.filter(
prefix__net_contains_or_equals=str(address_attr.ip),
prefix__net_mask_length__lte=address_attr.prefixlen,
)
if hasattr(ParentModel, 'vrf'):
prefixes = prefixes.filter(vrf=address.vrf)
address.prefix = prefixes.last()
address.save()
draw_progress(i, total, 50)
end = time.time()
print(f"\r\nElapsed Time: {end - start:.2f}s")
def set_ipaddress_prefix(apps, schema_editor):
set_prefix(apps, schema_editor, 'IPAddress')
def unset_ipaddress_prefix(apps, schema_editor):
IPAddress = apps.get_model('ipam', 'IPAddress')
IPAddress.objects.update(prefix=None)
def set_iprange_prefix(apps, schema_editor):
set_prefix(apps, schema_editor, 'IPRange', 'start_address')
def unset_iprange_prefix(apps, schema_editor):
IPRange = apps.get_model('ipam', 'IPRange')
IPRange.objects.update(prefix=None)
def set_prefix_aggregate(apps, schema_editor):
set_prefix(apps, schema_editor, 'Prefix', 'prefix', 'Aggregate')
def unset_prefix_aggregate(apps, schema_editor):
Prefix = apps.get_model('ipam', 'Prefix')
Prefix.objects.update(aggregate=None)
def set_prefix_parent(apps, schema_editor):
Prefix = apps.get_model('ipam', 'Prefix')
start = time.time()
addresses = Prefix.objects.all()
i = 0
total = addresses.count()
if total == 0:
return
print('\r\n')
draw_progress(i, total, 50)
for address in addresses:
i += 1
prefixes = Prefix.objects.exclude(pk=address.pk).filter(
models.Q(
vrf=address.vrf,
prefix__net_contains=str(address.prefix.ip)
) | models.Q(
vrf=None,
status=PrefixStatusChoices.STATUS_CONTAINER,
prefix__net_contains=str(address.prefix.ip),
)
)
if not prefixes.exists():
draw_progress(i, total, 50)
continue
address.parent = prefixes.last()
address.save()
draw_progress(i, total, 50)
end = time.time()
print(f"\r\nElapsed Time: {end - start:.2f}s")
def unset_prefix_parent(apps, schema_editor):
Prefix = apps.get_model('ipam', 'Prefix')
Prefix.objects.update(parent=None)
class Migration(migrations.Migration):
dependencies = [
('ipam', '0082_ipaddress_iprange_prefix_parent'),
]
operations = [
migrations.RunPython(set_ipaddress_prefix, unset_ipaddress_prefix),
migrations.RunPython(set_iprange_prefix, unset_iprange_prefix),
migrations.RunPython(set_prefix_aggregate, unset_prefix_aggregate),
migrations.RunPython(set_prefix_parent, unset_prefix_parent),
]