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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 #
###############################################################################
from discover.events.event_base import EventResult
from discover.events.event_delete_base import EventDeleteBase
class EventSubnetDelete(EventDeleteBase):
def delete_children_documents(self, env, vservice_id):
vnic_parent_id = vservice_id + '-vnics'
vnic = self.inv.get_by_field(env, 'vnic', 'parent_id', vnic_parent_id, get_single=True)
if not vnic:
self.log.info("Vnic document not found.")
return EventResult(result=False, retry=False)
# delete port and vnic together by mac address.
self.inv.delete('inventory', {"mac_address": vnic.get("mac_address")})
return self.delete_handler(env, vservice_id, 'vservice')
def handle(self, env, notification):
subnet_id = notification['payload']['subnet_id']
network_document = self.inv.get_by_field(env, "network", "subnet_ids", subnet_id, get_single=True)
if not network_document:
self.log.info("network document not found, aborting subnet deleting")
return EventResult(result=False, retry=False)
# remove subnet_id from subnet_ids array
network_document["subnet_ids"].remove(subnet_id)
# find the subnet in network_document by subnet_id
subnet = next(
filter(lambda s: s['id'] == subnet_id,
network_document['subnets'].values()),
None)
# remove cidr from cidrs and delete subnet document.
if subnet:
network_document['cidrs'].remove(subnet['cidr'])
del network_document['subnets'][subnet['name']]
self.inv.set(network_document)
# when network does not have any subnet, delete vservice DHCP, port and vnic documents.
if not network_document["subnet_ids"]:
vservice_dhcp_id = 'qdhcp-{}'.format(network_document['id'])
self.delete_children_documents(env, vservice_dhcp_id)
return EventResult(result=True,
related_object=subnet['id'],
display_context=network_document.get('id'))
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