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from extras.scripts import *
from django.core.exceptions import ValidationError
from dcim.models import Device, DeviceType, Location, DeviceRole, Site, Interface
from dcim.choices import InterfaceModeChoices, InterfaceTypeChoices
from ipam.models import VLANGroup, VLAN, Role, Prefix, IPAddress
from ipam.choices import PrefixStatusChoices
DEFAULT_SITE = Site.objects.get(name='Vikingskipet')
DEFAULT_DEVICE_TYPE = DeviceType.objects.get(model='EX2200-48T-4G')
DEFAULT_DEVICE_ROLE = DeviceRole.objects.get(slug='access-switch')
DEFAULT_TG_DNS_SUFFIX = "tg25.tg.no"
# VLAN Group to allocate VLANs from
FABRIC_VLAN_GROUP = VLANGroup.objects.get(slug='client-vlans')
# Vlan role for fabric clients
FABRIC_CLIENTS_ROLE = Role.objects.get(slug='clients')
# Client networks allocated from here
FABRIC_V4_CLIENTS_PREFIX = Prefix.objects.get(prefix='10.25.0.0/16')
FABRIC_V6_CLIENTS_PREFIX = Prefix.objects.get(prefix='2a06:5844:e::/48')
# Switch mgmt allocates from here
FABRIC_V4_JUNIPER_MGMT_PREFIX = Prefix.objects.get(prefix='185.110.149.0/25')
FABRIC_V6_JUNIPER_MGMT_PREFIX = Prefix.objects.get(prefix='2a06:5841:f::/64')
UPLINK_PORTS = {
'EX2200-48T-4G': ["ge-0/0/45", "ge-0/0/46", "ge-0/0/47", "ge-0/0/48"],
}
def generatePrefix(prefix, length):
firstPrefix = prefix.get_first_available_prefix()
out = list(firstPrefix.subnet(length, count=1))[0]
return out
class CreateSwitch(Script):
class Meta:
name = "Create Switch"
description = "Provision a new switch"
commit_default = True
field_order = ['site_name', 'switch_count', 'switch_model']
fieldsets = ""
scheduling_enabled = False
switch_name = StringVar(
description = "Switch name. Remember, e = access switch, d = distro switch",
required = True,
default = "e1.test" # default during development
)
device_type = ObjectVar(
description = "Device model",
model = DeviceType,
default = DEFAULT_DEVICE_TYPE.id,
)
device_role = ObjectVar(
description = "Device role",
model = DeviceRole,
default = DEFAULT_DEVICE_ROLE.id,
)
location = ObjectVar(
model = Location,
required = True,
default = Location.objects.get(name="Ringen") # Default during development
)
def run(self, data, commit):
if not data['switch_name'].startswith("e") and not data['switch_name'].startswith("d"):
raise ValidationError("Switch name must start whit e or d")
switch = Device(
name = data['switch_name'],
device_type = data['device_type'],
location = data['location'],
role = data['device_role'],
site = DEFAULT_SITE
)
switch.save()
self.log_info("Created switch")
mgmt_interface_name = "irb"
if switch.device_type.model == "EX2200-48T-4G":
mgmt_interface_name = "vlan"
mgmt_vlan_interface = Interface.objects.create(
device=switch,
name=f"{mgmt_interface_name}.{FABRIC_V4_JUNIPER_MGMT_PREFIX.vlan.id}",
description = f'X: Mgmt',
type=InterfaceTypeChoices.TYPE_VIRTUAL,
mode=InterfaceModeChoices.MODE_TAGGED,
)
v4_mgmt_addr = IPAddress.objects.create(
address=FABRIC_V4_JUNIPER_MGMT_PREFIX.get_first_available_ip(),
dns_name=f"{switch.name}.{DEFAULT_TG_DNS_SUFFIX}"
)
v6_mgmt_addr = IPAddress.objects.create(
address=FABRIC_V6_JUNIPER_MGMT_PREFIX.get_first_available_ip(),
dns_name=f"{switch.name}.{DEFAULT_TG_DNS_SUFFIX}"
)
mgmt_vlan_interface.ip_addresses.add(v4_mgmt_addr)
mgmt_vlan_interface.ip_addresses.add(v6_mgmt_addr)
switch.primary_ip4 = v4_mgmt_addr
switch.primary_ip6 = v6_mgmt_addr
switch.save()
self.log_info("Allocated and assigned mgmt addresses on switch")
vid = FABRIC_VLAN_GROUP.get_next_available_vid()
vlan = VLAN.objects.create(
name = switch.name,
group = FABRIC_VLAN_GROUP,
role = FABRIC_CLIENTS_ROLE,
vid = vid
)
vlan.save()
self.log_info("Created VLAN")
interfaces = list(Interface.objects.filter(device=switch, type=InterfaceTypeChoices.TYPE_1GE_FIXED))
if len(interfaces) == 0:
self.log_error(f"no interfaces found")
for interface in interfaces:
if interface.name in UPLINK_PORTS.get(switch.device_type.model, []):
continue
interface.mode = 'access'
interface.untagged_vlan = vlan
interface.description = "C: Clients"
interface.save()
self.log_info("Configured traffic vlan on all client ports")
v6_prefix = Prefix.objects.create(
prefix = generatePrefix(FABRIC_V6_CLIENTS_PREFIX, 64),
status = PrefixStatusChoices.STATUS_ACTIVE,
role = FABRIC_CLIENTS_ROLE,
vlan = vlan
)
v4_prefix = Prefix.objects.create(
prefix = generatePrefix(FABRIC_V4_CLIENTS_PREFIX, 26),
status = PrefixStatusChoices.STATUS_ACTIVE,
role = FABRIC_CLIENTS_ROLE,
vlan = vlan
)
self.log_info("Allocated traffic prefixes")
self.log_success(f"✅ Script completed successfully.")
self.log_success(f"🔗 Switch: <a href=\"{switch.get_absolute_url()}\">{switch}</a>")
self.log_success(f"🔗 v6 Prefix: <a href=\"{v6_prefix.get_absolute_url()}\">{v6_prefix}</a>")
self.log_success(f"🔗 v4 Prefix: <a href=\"{v4_prefix.get_absolute_url()}\">{v4_prefix}</a>")
self.log_success(f"🔗 VLAN: <a href=\"{vlan.get_absolute_url()}\">{vlan}</a>")
self.log_success(f"⚠️ <strong>️Fabric config must be deployed before switch can be fapped.</strong>")
script = CreateSwitch
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