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import os
import pynetbox
import yaml
nb = pynetbox.api(
'https://netbox-dev.infra.gathering.org',
token=os.getenv('NETBOX_API_KEY'),
threading=True,
)
koblingsplan = {}
with open('tg23-koblingsplan.yml', 'r') as f:
koblingsplan = yaml.safe_load(f.read())
def device_from_edge(edge):
role = edge['type']
if role == 'Distro':
role = 'Distribution Switch'
if role == 'Edge':
role = 'Access Switch'
return {
'name': edge['node'],
'role': role,
'model': edge['model'],
}
def get_or_create_device(device):
if (r := nb.dcim.devices.get(name=device['name'])) and r is not None:
print(f"Found device {r.name} {r.url}")
return r
print(f"📱 Creating device {device['name']}")
device_type = nb.dcim.device_types.get(model=device['model'])
if device_type is None:
print(f"""❌ Device type {device['model']} is missing from NetBox. Please add it manually.
Make sure to add any templating options e.g. for interfaces so they are created automagically.""")
exit(1)
device_role = nb.dcim.device_roles.get(name=device['role'])
if device_role is None:
print(f"❌ Device role {device['role']} is missing from NetBox. Please add it manually.") # This could probably be done programatically.
exit(1)
default_site = nb.dcim.sites.get(name='Unknown')
r = nb.dcim.devices.create(
name=device['name'],
device_role=device_role.id,
device_type=device_type.id,
site=default_site.id,
)
print(f"📱 Created device {device['name']}, {r.url}. Note: It is placed in 'site=ringen' because we don't have info about which site the device is part of.")
return r
def get_or_create_interface(device, name, description="", dot1q_mode=''):
if (r := nb.dcim.interfaces.get(device_id=device.id, name=name)) and r is not None:
print(f"Found interface {device.name} {r.name} {r.url}")
return r
print(f"🧦 Creating interface {device.name} {name}")
interface = nb.dcim.interfaces.create(
device=device.id,
name=name,
type='1000base-t',
description=description,
mode=dot1q_mode,
)
print(f"🧦 Created interface {device.name} {interface.name} {interface.url}")
return interface
def get_or_create_cabling(cabling):
a = cabling['a']
b = cabling['b']
cable_type = kobling['cable_type']
if cable_type == 'Singlemode LC':
cable_type = 'smf'
else:
cable_type = cable_type.lower()
print(f"🔌 Planning cable A<->B: {a['node']} {a['interface']}<->{b['interface']} {b['node']}")
a_device_spec = device_from_edge(a)
a_device = get_or_create_device(a_device_spec)
a_node_description = a['node_description'] if 'node_description' in a else ''
a_interface = get_or_create_interface(a_device, a['interface'], a_node_description)
b_device_spec = device_from_edge(b)
b_device = get_or_create_device(b_device_spec)
b_node_description = b['node_description'] if 'node_description' in b else ''
b_interface = get_or_create_interface(b_device, b['interface'], b_node_description)
a_ae_interface = get_or_create_interface(a_device, a['ae'], dot1q_mode='tagged', description=b_device.name)
b_ae_interface = get_or_create_interface(b_device, b['ae'], dot1q_mode='tagged', description=a_device.name)
if (a_interface.cable and b_interface.cable) and a_interface.cable.id == b_interface.cable.id:
print(f'🎉 Cable already exists A<->B: {a_device.name} {a_interface.name}<->{b_interface.name} {b_device.name} {a_interface.cable.url}')
return
elif (a_interface.cable and b_interface.cable) and a_interface.cable.id != b_interface.cable.id:
print('A cable already exists for these interfaces and it is not the same cable.')
print('A-side cable:\n\t', end='')
print(f'{a_interface.cable.display} {a_interface.cable.url}')
print('B-side cable:\n\t', end='')
print(f'{b_interface.cable.display} {b_interface.cable.url}')
print(f'Please manually fix in NetBox as this is not something we can fix in this script.')
return
elif (a_interface.cable or b_interface.cable):
print("⚠️ A cable already exists for one of these interfaces and it is not the same cable. I'll replace it because I trust this source the most...🤠")
if a_interface.cable:
print('A-side cable:\n\t', end='')
print(f'{a_interface.cable} {a_interface.cable.url}')
print('Deleting...')
a_interface.cable.delete()
if b_interface.cable:
print('B-side cable:\n\t', end='')
print(f'{b_interface.cable} {b_interface.cable.url}')
print('Deleting...')
b_interface.cable.delete()
extra_info = a['interface_description'] if 'interface_description' in a else ''
print(f'🔌 Cabling A<->B: {a_device.name} {a_interface.name}<->{b_interface.name} {b_device.name}')
cable = nb.dcim.cables.create(
a_terminations = [{
"object_id": a_interface.id,
"object_type": "dcim.interface",
}],
b_terminations = [{
"object_id": b_interface.id,
"object_type": "dcim.interface",
}],
type=cable_type,
status = 'planned',
color = 'c0c0c0',
label=extra_info, # not the best place to put 'extra info', but i dont really have a better option.
)
print(f'🎉 Created cable: {cable.url}')
for kobling in koblingsplan:
get_or_create_cabling(kobling)
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