234 lines
9 KiB
Python
234 lines
9 KiB
Python
from itertools import chain
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import logging
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import os
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import re
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from netaddr import IPAddress
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import netifaces
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from netbox_agent.config import netbox_instance as nb
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from netbox_agent.config import NETWORK_IGNORE_INTERFACES, NETWORK_IGNORE_IPS
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from netbox_agent.ethtool import Ethtool
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IFACE_TYPE_100ME_FIXED = 800
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IFACE_TYPE_1GE_FIXED = 1000
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IFACE_TYPE_1GE_GBIC = 1050
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IFACE_TYPE_1GE_SFP = 1100
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IFACE_TYPE_2GE_FIXED = 1120
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IFACE_TYPE_5GE_FIXED = 1130
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IFACE_TYPE_10GE_FIXED = 1150
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IFACE_TYPE_10GE_CX4 = 1170
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IFACE_TYPE_10GE_SFP_PLUS = 1200
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IFACE_TYPE_10GE_XFP = 1300
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IFACE_TYPE_10GE_XENPAK = 1310
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IFACE_TYPE_10GE_X2 = 1320
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IFACE_TYPE_25GE_SFP28 = 1350
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IFACE_TYPE_40GE_QSFP_PLUS = 1400
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IFACE_TYPE_50GE_QSFP28 = 1420
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IFACE_TYPE_100GE_CFP = 1500
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IFACE_TYPE_100GE_CFP2 = 1510
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IFACE_TYPE_100GE_CFP4 = 1520
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IFACE_TYPE_100GE_CPAK = 1550
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IFACE_TYPE_100GE_QSFP28 = 1600
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IFACE_TYPE_200GE_CFP2 = 1650
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IFACE_TYPE_200GE_QSFP56 = 1700
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IFACE_TYPE_400GE_QSFP_DD = 1750
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IFACE_TYPE_OTHER = 32767
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IFACE_TYPE_LAG = 200
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class Network():
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def __init__(self, server, *args, **kwargs):
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self.nics = []
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self.server = server
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self.device = self.server.get_netbox_server()
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self.scan()
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def scan(self):
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for interface in os.listdir('/sys/class/net/'):
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if NETWORK_IGNORE_INTERFACES and \
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re.match(NETWORK_IGNORE_INTERFACES, interface):
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logging.debug('Ignore interface {interface}'.format(interface=interface))
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continue
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else:
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ip_addr = netifaces.ifaddresses(interface).get(netifaces.AF_INET)
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mac = open('/sys/class/net/{}/address'.format(interface), 'r').read().strip()
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vlan = None
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if len(interface.split('.')) > 1:
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vlan = int(interface.split('.')[1])
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bonding = False
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bonding_slaves = []
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if os.path.isdir('/sys/class/net/{}/bonding'.format(interface)):
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bonding = True
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bonding_slaves = open(
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'/sys/class/net/{}/bonding/slaves'.format(interface)
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).read().split()
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nic = {
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'name': interface,
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'mac': mac if mac != '00:00:00:00:00:00' else None,
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'ip': [
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'{}/{}'.format(
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x['addr'],
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IPAddress(x['netmask']).netmask_bits()
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) for x in ip_addr if not re.match(NETWORK_IGNORE_IPS, x['addr'])
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] if ip_addr else None, # FIXME: handle IPv6 addresses
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'ethtool': Ethtool(interface).parse(),
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'vlan': vlan,
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'bonding': bonding,
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'bonding_slaves': bonding_slaves,
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}
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self.nics.append(nic)
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def get_network_cards(self):
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return self.nics
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def get_netbox_network_card(self, nic):
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if nic['mac'] is None:
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interface = nb.dcim.interfaces.get(
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device_id=self.device.id,
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name=nic['name'],
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)
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else:
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interface = nb.dcim.interfaces.get(
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device_id=self.device.id,
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mac_address=nic['mac'],
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name=nic['name'],
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)
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return interface
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def get_netbox_network_cards(self):
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return nb.dcim.interfaces.filter(
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device_id=self.device.id,
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)
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def get_netbox_type_for_nic(self, nic):
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if nic['bonding']:
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return IFACE_TYPE_LAG
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if nic.get('ethtool') is None:
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return IFACE_TYPE_OTHER
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if nic['ethtool']['speed'] == '10000Mb/s':
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if nic['ethtool']['port'] == 'FIBRE':
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return IFACE_TYPE_10GE_SFP_PLUS
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return IFACE_TYPE_10GE_FIXED
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elif nic['ethtool']['speed'] == '1000Mb/s':
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if nic['ethtool']['port'] == 'FIBRE':
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return IFACE_TYPE_1GE_SFP
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return IFACE_TYPE_1GE_FIXED
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return IFACE_TYPE_OTHER
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def create_netbox_nic(self, nic):
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# TODO: add Optic Vendor, PN and Serial
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type = self.get_netbox_type_for_nic(nic)
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logging.info('Creating NIC {name} ({mac}) on {device}'.format(
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name=nic['name'], mac=nic['mac'], device=self.device.name))
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return nb.dcim.interfaces.create(
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device=self.device.id,
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name=nic['name'],
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mac_address=nic['mac'],
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type=type,
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mode=200 if nic['vlan'] else None,
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)
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def create_netbox_network_cards(self):
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logging.debug('Creating NIC...')
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for nic in self.nics:
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interface = self.get_netbox_network_card(nic)
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# if network doesn't exist we create it
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if not interface:
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new_interface = self.create_netbox_nic(nic)
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if nic['ip']:
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# for each ip, we try to find it
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# assign the device's interface to it
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# or simply create it
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for ip in nic['ip']:
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netbox_ip = nb.ipam.ip_addresses.get(
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address=ip,
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)
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if netbox_ip:
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logging.info('Assigning existing IP {ip} to {interface}'.format(
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ip=ip, interface=new_interface))
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netbox_ip.interface = new_interface
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netbox_ip.save()
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else:
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logging.info('Create new IP {ip} on {interface}'.format(
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ip=ip, interface=new_interface))
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netbox_ip = nb.ipam.ip_addresses.create(
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address=ip,
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interface=new_interface.id,
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status=1,
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)
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logging.debug('Finished creating NIC!')
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def update_netbox_network_cards(self):
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logging.debug('Updating NIC...')
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# delete unknown interface
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nb_nics = self.get_netbox_network_cards()
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local_nics = [x['name'] for x in self.nics]
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for nic in nb_nics:
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if nic.name not in local_nics:
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logging.info('Deleting netbox interface {name} because not present locally'.format(
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name=nic.name
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))
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nic.delete()
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# delete IP on netbox that are not known on this server
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netbox_ips = nb.ipam.ip_addresses.filter(
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device_id=self.device.id
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)
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all_local_ips = list(chain.from_iterable([
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x['ip'] for x in self.nics if x['ip'] is not None
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]))
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for netbox_ip in netbox_ips:
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if netbox_ip.address not in all_local_ips:
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logging.info('Unassigning IP {ip} from {interface}'.format(
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ip=netbox_ip.address, interface=netbox_ip.interface))
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netbox_ip.interface = None
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netbox_ip.save()
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# update each nic
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for nic in self.nics:
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interface = self.get_netbox_network_card(nic)
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if not interface:
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logging.info('Interface {mac_address} not found, creating..'.format(
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mac_address=nic['mac'])
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)
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interface = self.create_netbox_nic(nic)
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nic_update = False
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if nic['name'] != interface.name:
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nic_update = True
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logging.info('Updating interface {interface} name to: {name}'.format(
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interface=interface, name=nic['name']))
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interface.name = nic['name']
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if nic['ip']:
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# sync local IPs
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for ip in nic['ip']:
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netbox_ip = nb.ipam.ip_addresses.get(
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address=ip,
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)
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if not netbox_ip:
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# create netbox_ip on device
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netbox_ip = nb.ipam.ip_addresses.create(
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address=ip,
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interface=interface.id,
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status=1,
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)
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logging.info('Created new IP {ip} on {interface}'.format(
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ip=ip, interface=interface))
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else:
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if netbox_ip.interface.id != interface.id:
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logging.info(
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'Detected interface change: old interface is {old_interface} '
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'(id: {old_id}), new interface is {new_interface} (id: {new_id})'
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.format(
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old_interface=netbox_ip.interface, new_interface=interface,
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old_id=netbox_ip.id, new_id=interface.id
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))
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netbox_ip.interface = interface
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netbox_ip.save()
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if nic_update:
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interface.save()
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logging.debug('Finished updating NIC!')
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