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###############################################################################
# Copyright (c) 2017 Koren Lev (Cisco Systems), Yaron Yogev (Cisco Systems) #
# and others #
# #
# All rights reserved. This program and the accompanying materials #
# are made available under the terms of the Apache License, Version 2.0 #
# which accompanies this distribution, and is available at #
# http://www.apache.org/licenses/LICENSE-2.0 #
###############################################################################
import re
from discover.fetchers.aci.aci_access import AciAccess, aci_config_required
from utils.inventory_mgr import InventoryMgr
from utils.util import encode_aci_dn, get_object_path_part
class AciFetchSwitchPnic(AciAccess):
def __init__(self):
super().__init__()
self.inv = InventoryMgr()
def fetch_pnics_by_mac_address(self, mac_address):
mac_filter = "eq(epmMacEp.addr,\"{}\")".format(mac_address)
pnic_filter = "wcard(epmMacEp.ifId, \"eth\")"
query_filter = "and({},{})".format(mac_filter, pnic_filter)
pnics = self.fetch_objects_by_class("epmMacEp",
{"query-target-filter": query_filter})
return [pnic["attributes"] for pnic in pnics]
def fetch_switch_by_id(self, switch_id):
dn = "/".join((switch_id, "sys"))
response = self.fetch_mo_data(dn)
switch_data = self.get_objects_by_field_names(response, "topSystem", "attributes")
return switch_data[0] if switch_data else None
@aci_config_required(default=[])
def get(self, pnic_id):
environment = self.get_env()
pnic = self.inv.get_by_id(environment=environment, item_id=pnic_id)
if not pnic:
return []
mac_address = pnic.get("mac_address")
if not mac_address:
return []
switch_pnics = self.fetch_pnics_by_mac_address(mac_address)
if not switch_pnics:
return []
switch_pnic = switch_pnics[0]
# Prepare and save switch data in inventory
aci_id_match = re.match("topology/(.+)/sys", switch_pnic["dn"])
if not aci_id_match:
raise ValueError("Failed to fetch switch id from pnic dn: {}"
.format(switch_pnic["dn"]))
aci_switch_id = aci_id_match.group(1)
db_switch_id = encode_aci_dn(aci_switch_id)
if not self.inv.get_by_id(environment, db_switch_id):
switch_data = self.fetch_switch_by_id(aci_switch_id)
if not switch_data:
self.log.warning("No switch found for switch pnic dn: {}"
.format(switch_pnic["dn"]))
return []
switch_json = {
"id": db_switch_id,
"ip_address": switch_data["address"],
"type": "switch",
"aci_document": switch_data
}
# Region name is the same as region id
region_id = get_object_path_part(pnic["name_path"], "Regions")
region = self.inv.get_by_id(environment, region_id)
self.inv.save_inventory_object(o=switch_json, parent=region, environment=environment)
db_pnic_id = "-".join((db_switch_id,
encode_aci_dn(switch_pnic["ifId"]),
mac_address))
pnic_json = {
"id": db_pnic_id,
"type": "pnic",
"pnic_type": "switch",
"mac_address": mac_address,
"aci_document": switch_pnic
}
return [pnic_json]
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