netbox-docker/startup_scripts/360_prefixes.py

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import sys
from dcim.models import Site
from ipam.models import VLAN, VRF, Prefix, Role
from netaddr import IPNetwork
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from startup_script_utils import (
load_yaml,
pop_custom_fields,
set_custom_fields_values,
split_params,
)
from tenancy.models import Tenant, TenantGroup
prefixes = load_yaml("/opt/netbox/initializers/prefixes.yml")
if prefixes is None:
sys.exit()
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match_params = ["prefix", "site", "vrf", "vlan"]
optional_assocs = {
"site": (Site, "name"),
"tenant": (Tenant, "name"),
"tenant_group": (TenantGroup, "name"),
"vlan": (VLAN, "name"),
"role": (Role, "name"),
"vrf": (VRF, "name"),
}
for params in prefixes:
custom_field_data = pop_custom_fields(params)
params["prefix"] = IPNetwork(params["prefix"])
for assoc, details in optional_assocs.items():
if assoc in params:
model, field = details
query = {field: params.pop(assoc)}
params[assoc] = model.objects.get(**query)
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matching_params, defaults = split_params(params, match_params)
prefix, created = Prefix.objects.get_or_create(**matching_params, defaults=defaults)
if created:
print("📌 Created Prefix", prefix.prefix)
set_custom_fields_values(prefix, custom_field_data)