38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
import logging
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from django.db.models.signals import post_delete, post_save, pre_save
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from django.dispatch import receiver
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from ipam.models import IPAddress
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from netbox_ddns.background_tasks import update_dns
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logger = logging.getLogger('netbox_ddns')
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@receiver(pre_save, sender=IPAddress)
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def store_original_ipaddress(instance: IPAddress, **_kwargs):
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instance.before_save = IPAddress.objects.filter(pk=instance.pk).first()
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@receiver(post_save, sender=IPAddress)
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def trigger_ddns_update(instance: IPAddress, **_kwargs):
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old_address = instance.before_save.address if instance.before_save else None
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old_dns_name = instance.before_save.dns_name if instance.before_save else ''
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if instance.address != old_address or instance.dns_name != old_dns_name:
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# IP address or DNS name has changed
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update_dns.delay(
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old_address=old_address.ip if old_address else None,
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new_address=instance.address.ip,
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old_dns_name=old_dns_name.rstrip('.'),
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new_dns_name=instance.dns_name.rstrip('.'),
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)
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@receiver(post_delete, sender=IPAddress)
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def trigger_ddns_delete(instance: IPAddress, **_kwargs):
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update_dns.delay(
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old_address=instance.address.ip,
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old_dns_name=instance.dns_name.rstrip('.'),
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)
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