1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
import os
from django.contrib.contenttypes.models import ContentType
from django.db.models import F
from django.utils.text import slugify
from dcim.choices import DeviceStatusChoices, InterfaceModeChoices, InterfaceTypeChoices, SiteStatusChoices
from dcim.models import Cable, CableTermination, Device, DeviceRole, DeviceType, Interface, Manufacturer, Site
from extras.scripts import *
from ipam.models import IPAddress, Prefix, VLAN
from ipam.lookups import NetHostContained
import ipaddress
import json
import re
import requests
from requests.models import HTTPBasicAuth
class GondulConfigError(Exception):
def __init__(self, msg):
self.message = msg
super().__init__(self.message)
GONDUL_CONFIG_FILE = os.getenv("GONDUL_CONFIG_FILE_PATH", "/etc/netbox/scripts/gondul.json")
class Gondul(object):
url = ""
username = ""
password = ""
def __init__(self, url, username, password) -> None:
self.url = url
self.username = username
self.password = password
@classmethod
def read_config_from_file(cls, path):
with open(path, 'r') as f:
conf = json.loads(f.read())
try:
url = conf['url']
username = conf['username']
password = conf['password']
return Gondul(url, username, password)
except KeyError as e:
raise GondulConfigError(f"Missing Gondul Configuration key: {e} in {path}")
def gondul_auth(self):
return HTTPBasicAuth(self.username, self.password)
def gondul_post(self, path, data):
return requests.post(
f"{self.url}{path}",
auth=self.gondul_auth(),
headers={'content-type': 'application/json'},
data=json.dumps(data),
)
def update_networks(self, networks):
return self.gondul_post("/api/write/networks", networks)
def update_switches(self, switches):
return self.gondul_post("/api/write/switches", switches)
class Netbox2Gondul(Script):
class Meta:
name = "Sync NetBox to Gondul"
description = re.sub(r'^\s*', '', """
Can be done for a single network/device or a full sync. Note that this will not do 'renames' of devices, so it is best used for updating device information.
If a device is selected, it will also sync the required networks as long as they are set up correctly (Primary IP addresses for the Device & VLAN configured for the Prefix of those IP Addresses).
""")
device = ObjectVar(
description="Device",
model=Device,
required=True,
)
_gondul = None
def network_to_gondul(self, vlan: VLAN, prefix_v4: Prefix, prefix_v6: Prefix):
self.log_info(f"Preparing {vlan.name} for Gondul")
subnet4 = None
subnet6 = None
gw4 = None
gw6 = None
router = None
if prefix_v4:
subnet4 = str(prefix_v4.prefix)
gw4 = str(ipaddress.IPv4Network(prefix_v4.prefix)[1])
else:
self.log_warning(f'Network for VLAN <a href="{vlan.get_absolute_url()}">{vlan.name}</a> is missing IPv4 Prefix')
if prefix_v6:
subnet6 = str(prefix_v6.prefix)
gw6 = str(ipaddress.IPv6Network(prefix_v6.prefix)[1])
else:
self.log_warning(f'Network for VLAN <a href="{vlan.get_absolute_url()}">{vlan.name}</a> is missing IPv6 Prefix')
try:
router = IPAddress.objects.get(address=gw4)
except IPAddress.DoesNotExist:
self.log_warning(f'Router not found for VLAN <a href="{vlan.get_absolute_url()}">{vlan.name}</a>')
router = "r1.tele"
vlan_name = vlan.name
if vlan.custom_fields.filter(name='gondul_name').count() == 1 and vlan.cf['gondul_name']:
override = vlan.cf['gondul_name']
self.log_info(f'Overriding management vlan name with: {override} (was: {vlan_name})')
vlan_name = override
networks = [{
"name": vlan_name,
"subnet4": subnet4,
"subnet6": subnet6,
"gw4": gw4,
"gw6": gw6,
"router": router,
"vlan": vlan.vid,
}]
req = self._gondul.update_networks(networks)
if req.ok:
self.log_success(f"Gondul said (HTTP {req.status_code}): {req.text}")
else:
self.log_failure(f"Gondul said HTTP {req.status_code} and {req.text}")
def device_to_gondul(self, device: Device):
self.log_info(f"Posting {device.name} to Gondul")
# Find distro and distro port through the cable connected on uplink ae.
# Assuming the uplink AE is always named 'ae0'.
uplink_ae: Interface = device.interfaces.get(name="ae0")
first_ae_interface: Interface = uplink_ae.member_interfaces.first()
cable: Cable = first_ae_interface.cable
# Assuming we only have one entry in the cable termination list.
distro_interface: Interface = cable.a_terminations[0]
distro = distro_interface.device
# This is the same way as we fetch mgmt vlan in the main run() function.
# We could pass it in directly to device_to_gondul().
mgmt_ip_addr = device.primary_ip4 if device.primary_ip4 is not None else device.primary_ip6
mgmt_prefix = Prefix.objects.get(NetHostContained(F('prefix'), str(mgmt_ip_addr)))
mgmt_vlan = mgmt_prefix.vlan
mgmt_vlan_name = mgmt_vlan.name
if mgmt_vlan.custom_fields.filter(name='gondul_name').count() == 1 and mgmt_vlan.cf['gondul_name']:
override = mgmt_vlan.cf['gondul_name']
self.log_info(f'Overriding management vlan name with: {override} (was: {mgmt_vlan_name})')
mgmt_vlan_name = override
traffic_vlan_name = None
try:
traffic_vlan = VLAN.objects.get(name=device.name)
traffic_prefix_v4 = Prefix.objects.get(vlan=traffic_vlan, prefix__family=4)
traffic_prefix_v6 = Prefix.objects.get(vlan=traffic_vlan, prefix__family=6)
self.network_to_gondul(traffic_vlan, traffic_prefix_v4, traffic_prefix_v6)
except VLAN.DoesNotExist:
pass
switches = [{
# "community": "", # Not implemented
"tags": [tag.slug for tag in list(device.tags.all())],
"distro_name": distro.name,
"distro_phy_port": distro_interface.name, # TODO: always .0 ?
"mgmt_v4_addr": str(device.primary_ip4.address.ip) if device.primary_ip4 is not None else None,
"mgmt_v6_addr": str(device.primary_ip6.address.ip) if device.primary_ip6 is not None else None,
"mgmt_vlan": mgmt_vlan_name,
# "placement": "", # Not implemented
# "poll_frequency": "", # Not implemented
"sysname": device.name,
"traffic_vlan": traffic_vlan_name,
# "deleted": False, # Not implemented
}]
req = self._gondul.update_switches(switches)
if req.ok:
self.log_success(f"Gondul said (HTTP {req.status_code}): {req.text}")
else:
self.log_failure(f"Gondul said HTTP {req.status_code} and {req.text}")
def run(self, data, commit):
device: Device = data['device']
if not device.primary_ip4 and not device.primary_ip6:
self.log_failure(f'Device <a href="{device.get_absolute_url()}">{device.name}</a> is missing primary IPv4 and IPv6 address.')
return
vlan: VLAN = None
prefix_v4: Prefix = None
if device.primary_ip4:
prefix_v4 = Prefix.objects.get(NetHostContained(F('prefix'), str(device.primary_ip4)))
vlan = prefix_v4.vlan
else:
self.log_warning(f'Device <a href="{device.get_absolute_url()}">{device.name}</a> is missing primary IPv4 address.')
prefix_v6: Prefix = None
if device.primary_ip6:
prefix_v6 = Prefix.objects.get(NetHostContained(F('prefix'), str(device.primary_ip6)))
vlan = prefix_v6.vlan
else:
self.log_warning(f'Device <a href="{device.get_absolute_url()}">{device.name}</a> is missing primary IPv6 address.')
if prefix_v4 is not None and prefix_v6 is not None and prefix_v4.vlan != prefix_v6.vlan:
self.log_failure(f'VLANs differ for the IPv4 and IPv6 addresses.')
return
self._gondul = Gondul.read_config_from_file(GONDUL_CONFIG_FILE)
self.network_to_gondul(vlan, prefix_v4, prefix_v6)
self.log_success("All good, sending to Gondul")
self.device_to_gondul(device)
|
