mirror of
https://github.com/bb-Ricardo/netbox-sync.git
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643 lines
26 KiB
Python
643 lines
26 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2020 - 2021 Ricardo Bartels. All rights reserved.
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#
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# netbox-sync.py
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#
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# This work is licensed under the terms of the MIT license.
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# For a copy, see file LICENSE.txt included in this
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# repository or visit: <https://opensource.org/licenses/MIT>.
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from ipaddress import ip_interface, ip_address, IPv6Address, IPv4Address, IPv6Network, IPv4Network
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from module.netbox.inventory import (
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NetBoxObject,
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NBDevice,
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NBVM,
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NBInterface,
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NBVMInterface,
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NBSite,
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NBPrefix,
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NBIPAddress,
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NBVLAN,
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NBCustomField
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)
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from module.common.logging import get_logger
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from module.common.misc import grab
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log = get_logger()
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class SourceBase:
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"""
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This is the base class for all import source classes. It provides some helpful common methods.
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"""
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inventory = None
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source_tag = None
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def map_object_interfaces_to_current_interfaces(self, device_vm_object, interface_data_dict=None):
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"""
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Try to match current object interfaces to discovered ones. This will be done
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by multiple approaches. Order as following listing whatever matches first will be chosen.
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by simple name:
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both interface names match exactly
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by MAC address separated by physical and virtual NICs:
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MAC address of interfaces match exactly, distinguish between physical and virtual interfaces
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by MAC regardless of interface type
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MAC address of interfaces match exactly, type of interface does not matter
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If there are interfaces which don't match at all then the unmatched interfaces will be
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matched 1:1. Sort both lists (unmatched current interfaces, unmatched new new interfaces)
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by name and assign them each other.
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eth0 > vNIC 1
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eth1 > vNIC 2
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ens1 > vNIC 3
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... > ...
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Parameters
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----------
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device_vm_object: (NBDevice, NBVM)
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object type to look for
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interface_data_dict: dict
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dictionary with interface data to compare to existing machine
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Returns
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-------
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dict: {"$interface_name": associated_interface_object}
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if no current current interface was left to match "None" will be returned instead of
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a matching interface object
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"""
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"""
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trying multiple ways to match interfaces
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"""
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if not isinstance(device_vm_object, (NBDevice, NBVM)):
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raise ValueError(f"Object must be a '{NBVM.name}' or '{NBDevice.name}'.")
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if not isinstance(interface_data_dict, dict):
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raise ValueError(f"Value for 'interface_data_dict' must be a dict, got: {interface_data_dict}")
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log.debug2("Trying to match current object interfaces in NetBox with discovered interfaces")
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current_object_interfaces = {
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"virtual": dict(),
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"physical": dict()
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}
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current_object_interface_names = list()
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return_data = dict()
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# grab current data
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for interface in self.inventory.get_all_interfaces(device_vm_object):
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int_mac = grab(interface, "data.mac_address")
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int_name = grab(interface, "data.name")
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int_type = "virtual"
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if "virtual" not in str(grab(interface, "data.type", fallback="virtual")):
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int_type = "physical"
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if int_mac is not None:
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current_object_interfaces[int_type][int_mac] = interface
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current_object_interfaces[int_mac] = interface
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if int_name is not None:
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current_object_interfaces[int_name] = interface
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current_object_interface_names.append(int_name)
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log.debug2("Found '%d' NICs in NetBox for '%s'" %
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(len(current_object_interface_names), device_vm_object.get_display_name()))
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unmatched_interface_names = list()
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for int_name, int_data in interface_data_dict.items():
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return_data[int_name] = None
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int_mac = grab(int_data, "mac_address", fallback="XX:XX:YY:YY:ZZ:ZZ")
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int_type = "virtual"
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if "virtual" not in str(grab(int_data, "type", fallback="virtual")):
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int_type = "physical"
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# match simply by name
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matching_int = None
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if int_name in current_object_interface_names:
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log.debug2(f"Found 1:1 name match for NIC '{int_name}'")
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matching_int = current_object_interfaces.get(int_name)
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# match mac by interface type
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elif grab(current_object_interfaces, f"{int_type}.{int_mac}") is not None:
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log.debug2(f"Found 1:1 MAC address match for {int_type} NIC '{int_name}'")
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matching_int = grab(current_object_interfaces, f"{int_type}.{int_mac}")
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# match mac regardless of interface type
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elif current_object_interfaces.get(int_mac) is not None and \
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current_object_interfaces.get(int_mac) not in return_data.values():
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log.debug2(f"Found 1:1 MAC address match for NIC '{int_name}' (ignoring interface type)")
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matching_int = current_object_interfaces.get(int_mac)
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if isinstance(matching_int, (NBInterface, NBVMInterface)):
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return_data[int_name] = matching_int
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# ToDo:
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# check why sometimes names are not present anymore and remove fails
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if grab(matching_int, "data.name") in current_object_interface_names:
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current_object_interface_names.remove(grab(matching_int, "data.name"))
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# no match found, we match the left overs just by #1 -> #1, #2 -> #2, ...
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else:
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unmatched_interface_names.append(int_name)
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current_object_interface_names.sort()
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unmatched_interface_names.sort()
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matching_nics = dict(zip(unmatched_interface_names, current_object_interface_names))
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for new_int, current_int in matching_nics.items():
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current_int_object = current_object_interfaces.get(current_int)
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log.debug2(f"Matching '{new_int}' to NetBox Interface '{current_int_object.get_display_name()}'")
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return_data[new_int] = current_int_object
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return return_data
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def return_longest_matching_prefix_for_ip(self, ip_to_match=None, site_name=None):
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"""
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This is a lazy approach to find longest matching prefix to an IP address.
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If site_name is set only IP prefixes from that site are matched.
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Parameters
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----------
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ip_to_match: IPv4Address, IPv6Address
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IP address to find prefix for
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site_name: str
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name of the site the prefix needs to be in
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Returns
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-------
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(NBPrefix, None): longest matching IP prefix, or None if no matching prefix was found
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"""
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if ip_to_match is None or self.inventory is None:
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return
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if not isinstance(ip_to_match, (IPv4Address, IPv6Address)):
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raise ValueError("Value of 'ip_to_match' needs to be an IPv4Address or IPv6Address object.")
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site_object = None
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if site_name is not None:
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site_object = self.inventory.get_by_data(NBSite, data={"name": site_name})
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if site_object is None:
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log.error(f"Unable to find site '{site_name}' for IP {ip_to_match}. "
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"Skipping to find Prefix for this IP.")
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return
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current_longest_matching_prefix_length = 0
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current_longest_matching_prefix = None
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for prefix in self.inventory.get_all_items(NBPrefix):
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if grab(prefix, "data.site") != site_object:
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continue
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prefix_network = grab(prefix, f"data.{NBPrefix.primary_key}")
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if prefix_network is None:
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continue
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if ip_to_match in prefix_network and \
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prefix_network.prefixlen >= current_longest_matching_prefix_length:
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current_longest_matching_prefix_length = prefix_network.prefixlen
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current_longest_matching_prefix = prefix
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return current_longest_matching_prefix
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def add_update_interface(self, interface_object, device_object, interface_data, interface_ips=None):
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"""
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Adds/Updates an interface to/of a NBVM or NBDevice including IP addresses.
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Validates/enriches data in following order:
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* extract untagged_vlan from data
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* try to find tagged_vlan_objects
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* add/update interface
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* loop over list of IPs and add each IP to the Interface if
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* IP is valid
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* does not belong to another active interface
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* extract prefixes belonging to the IPs
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* use VLAN data from prefixes to match/add to the interface
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Parameters
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----------
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interface_object: NBVMInterface, NBInterface, None
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object handle of the current interface (if existent, otherwise None)
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device_object: NBVM, NBDevice
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device object handle this interface belongs to
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interface_data: dict
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dictionary with interface attributes to add to this interface
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interface_ips: list
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list of ip addresses which are assigned to this interface
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Returns
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-------
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objects: tuple((NBVMInterface, NBInterface), list)
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tuple with interface object that was added/updated and a list of ip address objects which were
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added to this interface
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"""
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if not isinstance(interface_data, dict):
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log.error(f"Attribute 'interface_data' must be a dict() got {type(interface_data)}.")
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return None
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if type(device_object) == NBVM:
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interface_class = NBVMInterface
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elif type(device_object) == NBDevice:
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interface_class = NBInterface
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elif device_object is None:
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log.error(f"No device/VM object submitted to attach interface '{grab(interface_data, 'name')}' to.")
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return None
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else:
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log.error(f"Device object for interface '{grab(interface_data, 'name')}' must be a 'NBVM' or 'NBDevice'. "
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f"Got {type(device_object)}")
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return None
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if interface_object is not None and not isinstance(interface_object, interface_class):
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log.error(f"Interface object '{grab(interface_data, 'name')}' must be a '{interface_class.name}'.")
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return None
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site_name = grab(device_object, "data.site.data.name")
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# get vlans from interface data and remove it for now from interface data dict
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# vlans get added later once we have the prefixes for the IP addresses
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untagged_vlan = interface_data.get("untagged_vlan")
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if untagged_vlan is not None:
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del(interface_data["untagged_vlan"])
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tagged_vlans = interface_data.get("tagged_vlans") or list()
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if len(tagged_vlans) > 0:
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del (interface_data["tagged_vlans"])
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# add object to interface
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interface_data[interface_class.secondary_key] = device_object
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# create or update interface with data
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if interface_object is None:
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interface_object = self.inventory.add_object(interface_class, data=interface_data, source=self)
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else:
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interface_object.update(data=interface_data, source=self)
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ip_address_objects = list()
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matching_ip_prefixes = list()
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# add all interface IPs
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for nic_ip in interface_ips or list():
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# get IP and prefix length
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try:
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if "/" in nic_ip:
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ip_object = ip_interface(nic_ip)
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else:
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ip_object = ip_address(nic_ip)
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except ValueError:
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log.error(f"IP '{nic_ip}' ({interface_object.get_display_name()}) does not appear "
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"to be a valid IP address. Skipping!")
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continue
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log.debug2(f"Trying to find prefix for IP: {ip_object}")
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possible_ip_vrf = None
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possible_ip_tenant = None
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# test for site prefixes first
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matching_site_name = site_name
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matching_ip_prefix = self.return_longest_matching_prefix_for_ip(ip_object, matching_site_name)
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# nothing was found then check prefixes without site name
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if matching_ip_prefix is None:
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matching_site_name = None
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matching_ip_prefix = self.return_longest_matching_prefix_for_ip(ip_object)
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# matching prefix found, get data from prefix
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if matching_ip_prefix is not None:
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this_prefix = grab(matching_ip_prefix, f"data.{NBPrefix.primary_key}")
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if matching_site_name is None:
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log.debug2(f"Found IP '{ip_object}' matches global prefix '{this_prefix}'")
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else:
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log.debug2(f"Found IP '{ip_object}' matches site '{matching_site_name}' prefix "
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f"'{this_prefix}'")
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# check if prefix net size and ip address prefix length match
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if not isinstance(ip_object, (IPv6Address, IPv4Address)) and \
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this_prefix.prefixlen != ip_object.network.prefixlen:
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log.warning(f"IP prefix length of '{ip_object}' ({interface_object.get_display_name()}) "
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f"does not match network prefix length '{this_prefix}'!")
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possible_ip_vrf = grab(matching_ip_prefix, "data.vrf")
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possible_ip_tenant = grab(matching_ip_prefix, "data.tenant")
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matching_ip_prefixes.append(matching_ip_prefix)
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else:
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log_text = f"No matching NetBox prefix for '{ip_object}' found"
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# check if IP address is of type IP interface (includes prefix length)
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if type(ip_object) in [IPv6Address, IPv4Address]:
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log.warning(f"{log_text}. Unable to add IP address to NetBox.")
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continue
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else:
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log.debug2(log_text)
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# try to add prefix length to IP address if present
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if matching_ip_prefix is not None and type(ip_object) in [IPv6Address, IPv4Address]:
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this_prefix = grab(matching_ip_prefix, "data.prefix")
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if type(this_prefix) in [IPv4Network, IPv6Network]:
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ip_object = ip_interface(f"{ip_object}/{this_prefix.prefixlen}")
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else:
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log.warning(f"{matching_ip_prefix.name} got wrong format. Unable to add IP to NetBox")
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continue
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# try to find matching IP address object
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this_ip_object = None
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skip_this_ip = False
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for ip in self.inventory.get_all_items(NBIPAddress):
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# check if address matches (without prefix length)
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ip_address_string = grab(ip, "data.address", fallback="")
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# not a matching address
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if not ip_address_string.startswith(f"{ip_object.ip.compressed}/"):
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continue
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current_nic = grab(ip, "data.assigned_object_id")
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# is it our current ip interface?
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if current_nic == interface_object:
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this_ip_object = ip
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break
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# check if IP has the same prefix
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# continue if
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# * both are in global scope
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# * both are part of the same vrf
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if possible_ip_vrf != grab(ip, "data.vrf"):
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continue
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# IP address is not assigned to any interface
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if not isinstance(current_nic, (NBInterface, NBVMInterface)):
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this_ip_object = ip
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break
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# get current IP interface status
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current_nic_enabled = grab(current_nic, "data.enabled", fallback=True)
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this_nic_enabled = grab(interface_object, "data.enabled", fallback=True)
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if current_nic_enabled is True and this_nic_enabled is False:
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log.debug(f"Current interface '{current_nic.get_display_name()}' for IP '{ip_object}'"
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f" is enabled and this one '{interface_object.get_display_name()}' is disabled. "
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f"IP assignment skipped!")
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skip_this_ip = True
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break
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if current_nic_enabled is False and this_nic_enabled is True:
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log.debug(f"Current interface '{current_nic.get_display_name()}' for IP '{ip_object}'"
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f" is disabled and this one '{interface_object.get_display_name()}' is enabled. "
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f"IP will be assigned to this interface.")
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this_ip_object = ip
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if current_nic_enabled == this_nic_enabled:
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state = "enabled" if this_nic_enabled is True else "disabled"
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log.warning(f"Current interface '{current_nic.get_display_name()}' for IP "
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f"'{ip_object}' and this one '{interface_object.get_display_name()}' are "
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f"both {state}. "
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f"IP assignment skipped because it is unclear which one is the correct one!")
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skip_this_ip = True
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break
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if skip_this_ip is True:
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continue
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nic_ip_data = {
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"address": ip_object.compressed,
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"assigned_object_id": interface_object,
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}
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if not isinstance(this_ip_object, NBIPAddress):
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log.debug(f"No existing {NBIPAddress.name} object found. Creating a new one.")
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if possible_ip_vrf is not None:
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nic_ip_data["vrf"] = possible_ip_vrf
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if possible_ip_tenant is not None:
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nic_ip_data["tenant"] = possible_ip_tenant
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this_ip_object = self.inventory.add_object(NBIPAddress, data=nic_ip_data, source=self)
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# update IP address with additional data if not already present
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else:
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log.debug2(f"Found existing NetBox {NBIPAddress.name} object: {this_ip_object.get_display_name()}")
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if grab(this_ip_object, "data.vrf") is None and possible_ip_vrf is not None:
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nic_ip_data["vrf"] = possible_ip_vrf
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if grab(this_ip_object, "data.tenant") is None and possible_ip_tenant is not None:
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nic_ip_data["tenant"] = possible_ip_tenant
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this_ip_object.update(data=nic_ip_data, source=self)
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ip_address_objects.append(this_ip_object)
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matching_untagged_vlan = None
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matching_tagged_vlans = dict()
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tagged_vlan_ids = list()
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compiled_tagged_vlans = list()
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# compile list of tagged VLAN IDs
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for tagged_vlan in tagged_vlans:
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if isinstance(tagged_vlan, NBVLAN):
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compiled_tagged_vlans.append(tagged_vlan)
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else:
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tagged_vlan_ids.append(grab(tagged_vlan, "vid"))
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# try to match prefix VLANs
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for matching_prefix in matching_ip_prefixes:
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prefix_vlan = grab(matching_prefix, "data.vlan")
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if prefix_vlan is None:
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continue
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# find untagged vlans
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if untagged_vlan is None or grab(prefix_vlan, "data.vid") == untagged_vlan.get("vid"):
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if matching_untagged_vlan is None:
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matching_untagged_vlan = prefix_vlan
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# find tagged vlans
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if grab(prefix_vlan, "data.vid") in tagged_vlan_ids:
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matching_tagged_vlans[grab(prefix_vlan, "data.vid")] = prefix_vlan
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# try to find vlan object if no matching prefix VLAN ws found
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vlan_interface_data = dict()
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if untagged_vlan is not None or (untagged_vlan is None and len(tagged_vlans) == 0):
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if matching_untagged_vlan is None and untagged_vlan is not None:
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matching_untagged_vlan = self.get_vlan_object_if_exists(untagged_vlan, site_name)
|
|
elif matching_untagged_vlan is not None:
|
|
log.debug2(f"Found matching prefix VLAN {matching_untagged_vlan.get_display_name()} for "
|
|
f"untagged interface VLAN.")
|
|
|
|
if matching_untagged_vlan is not None:
|
|
vlan_interface_data["untagged_vlan"] = matching_untagged_vlan
|
|
if grab(interface_object, "data.mode") is None:
|
|
vlan_interface_data["mode"] = "access"
|
|
|
|
# try to find tagged vlan prefixes
|
|
for tagged_vlan in [x for x in tagged_vlans if not isinstance(tagged_vlans, NBVLAN)]:
|
|
|
|
matching_tagged_vlan = matching_tagged_vlans.get(grab(tagged_vlan, "vid"))
|
|
if matching_tagged_vlan is not None:
|
|
log.debug2(f"Found matching prefix VLAN {matching_tagged_vlan.get_display_name()} for "
|
|
f"tagged interface VLAN.")
|
|
else:
|
|
matching_tagged_vlan = self.get_vlan_object_if_exists(tagged_vlan, site_name)
|
|
|
|
compiled_tagged_vlans.append(matching_tagged_vlan)
|
|
|
|
if len(compiled_tagged_vlans) > 0:
|
|
vlan_interface_data["tagged_vlans"] = compiled_tagged_vlans
|
|
|
|
if len(vlan_interface_data.keys()) > 0:
|
|
interface_object.update(data=vlan_interface_data, source=self)
|
|
|
|
return interface_object, ip_address_objects
|
|
|
|
@staticmethod
|
|
def patch_data(object_to_patch, data, overwrite=False):
|
|
"""
|
|
Patch data to only fill currently unset parameters.
|
|
|
|
Parameters
|
|
----------
|
|
object_to_patch: NetBoxObject
|
|
Source object to patch
|
|
data: dict
|
|
New data to be patched in existing data
|
|
overwrite: bool
|
|
If True no patching will be performed and the data dict will be returned
|
|
|
|
Returns
|
|
-------
|
|
data_to_update: dict
|
|
dict with data to append/patch
|
|
"""
|
|
|
|
if overwrite is True:
|
|
return data
|
|
|
|
# only append data
|
|
data_to_update = dict()
|
|
for key, value in data.items():
|
|
current_value = grab(object_to_patch, f"data.{key}")
|
|
if current_value is None or str(current_value) == "":
|
|
data_to_update[key] = value
|
|
|
|
return data_to_update
|
|
|
|
def get_vlan_object_if_exists(self, vlan_data=None, vlan_site=None):
|
|
"""
|
|
This function will try to find a matching VLAN object based on 'vlan_data'
|
|
Will return matching objects in following order:
|
|
* exact match: VLAN id and site match
|
|
* global match: VLAN id matches but the VLAN has no site assigned
|
|
If nothing matches the input data from 'vlan_data' will be returned
|
|
|
|
Parameters
|
|
----------
|
|
vlan_data: dict
|
|
dict with NBVLAN data attributes
|
|
vlan_site: str
|
|
name of site the VLAN could be present
|
|
|
|
Returns
|
|
-------
|
|
(NBVLAN, dict, None): matching VLAN object, dict or None (content of vlan_data) if no match found
|
|
|
|
"""
|
|
|
|
if vlan_data is None:
|
|
return None
|
|
|
|
if isinstance(vlan_data, NBVLAN):
|
|
return vlan_data
|
|
|
|
if not isinstance(vlan_data, dict):
|
|
raise ValueError("Value of 'vlan_data' needs to be a dict.")
|
|
|
|
# check existing Devices for matches
|
|
log.debug2(f"Trying to find a {NBVLAN.name} based on the VLAN id '{vlan_data.get('vid')}'")
|
|
|
|
if vlan_data.get("vid") is None:
|
|
log.debug("No VLAN id set in vlan_data while trying to find matching VLAN.")
|
|
return vlan_data
|
|
|
|
if vlan_site is None:
|
|
vlan_site = self.inventory.get_by_data(NBSite, data=vlan_data.get("site"))
|
|
elif isinstance(vlan_site, str):
|
|
vlan_site = self.inventory.get_by_data(NBSite, data={"name": vlan_site})
|
|
|
|
return_data = vlan_data
|
|
vlan_object_including_site = None
|
|
vlan_object_without_site = None
|
|
|
|
for vlan in self.inventory.get_all_items(NBVLAN):
|
|
|
|
if grab(vlan, "data.vid") != vlan_data.get("vid"):
|
|
continue
|
|
|
|
if vlan_site is not None and grab(vlan, "data.site") == vlan_site:
|
|
vlan_object_including_site = vlan
|
|
|
|
if grab(vlan, "data.site") is None:
|
|
vlan_object_without_site = vlan
|
|
|
|
if isinstance(vlan_object_including_site, NetBoxObject):
|
|
return_data = vlan_object_including_site
|
|
log.debug2("Found a exact matching %s object: %s" %
|
|
(vlan_object_including_site.name,
|
|
vlan_object_including_site.get_display_name(including_second_key=True)))
|
|
|
|
elif isinstance(vlan_object_without_site, NetBoxObject):
|
|
return_data = vlan_object_without_site
|
|
log.debug2("Found a global matching %s object: %s" %
|
|
(vlan_object_without_site.name,
|
|
vlan_object_without_site.get_display_name(including_second_key=True)))
|
|
|
|
else:
|
|
log.debug2("No matching existing VLAN found for this VLAN id.")
|
|
|
|
return return_data
|
|
|
|
def add_update_custom_field(self, data):
|
|
"""
|
|
Adds/updates a NBCustomField object with data.
|
|
Update will only update the 'content_types' attribute.
|
|
|
|
Parameters
|
|
----------
|
|
data: dict
|
|
dictionary with NBCustomField attributes
|
|
|
|
Returns
|
|
-------
|
|
custom_field: NBCustomField
|
|
new or updated NBCustomField
|
|
"""
|
|
|
|
custom_field = self.inventory.get_by_data(NBCustomField, data={"name": data.get("name")})
|
|
|
|
if custom_field is None:
|
|
custom_field = self.inventory.add_object(NBCustomField, data=data, source=self)
|
|
else:
|
|
custom_field.update(data={"content_types": data.get("content_types")}, source=self)
|
|
|
|
return custom_field
|
|
|
|
# EOF
|