def drop(self):
"""
Drops the All Topology, which is the topology of all the elements
in the tenant,
"""
nova = novaclient.Client('2', session=self.session)
neutron = neutronclient.Client(endpoint_url=self.neutron_endpoint,
token=self.token)
neutron_if = NeutronIF()
# Remove FWaaS
logging.info('Removing FWaaS')
try:
for fw in neutron_if.firewall_list():
neutron_if.firewall_delete(fw.get('id'))
for policy in neutron_if.firewall_policy_list():
neutron_if.firewall_policy_delete(policy.get('id'))
for rule in neutron_if.firewall_rule_list():
neutron_if.firewall_rule_delete(id_=rule.get('id'))
except Exception as e:
logging.error('ERROR at removing FWaaS')
logging.error(e)
else:
logging.info('Success!')
# Deallocate floating IPs
logging.info('Deallocating floating IPs')
try:
floating_ips = nova.floating_ips.list()
for f_ip in floating_ips:
nova.servers.remove_floating_ip(server=f_ip.instance_id,
address=f_ip.ip)
nova.floating_ips.delete(f_ip.id)
except Exception as e:
logging.error('ERROR at deallocating floating IPs')
logging.error(e)
else:
logging.info('Success!')
# Delete routers
logging.info('Deleting routers...')
try:
routers = neutron_if.router_list()
for router in routers:
id_ = router['id']
# Delete gateway
neutron_if.router_gateway_clear(router_id=id_)
# Get router ports
interfaces = neutron_if.router_port_list(router_id=id_)
# Delete interfaces the router is connected to
for interface in interfaces:
port_id = interface.get('id')
neutron_if.router_interface_delete(router_id=id_,
port_id=port_id)
# Delete router
neutron_if.router_delete(router_id=id_)
except Exception as e:
logging.error('Error at deleting routers')
logging.error(e)
else:
logging.info('Success!')
# Delete instances
logging.info('Deleting instances...')
try:
servers = nova.servers.list()
for server in servers:
server.delete()
except Exception as e:
logging.error('Error at deleting the instances')
logging.error(e)
else:
logging.info('Success!')
time.sleep(5)
# Delete networks
logging.info('Deleting subnets and nets...')
try:
networks = neutron.list_networks()['networks']
for network in networks:
if network['name'] == 'ExtNet':
continue
id_ = network['id']
for subnet in network['subnets']:
neutron.delete_subnet(subnet)
neutron.delete_network(id_)
except Exception as e:
logging.error('Error at deleting the subnets and nets')
logging.error(e)
else:
logging.info('Success!')
