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neutron_plugin_db.py
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neutron_plugin_db.py
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# Copyright 2012, Contrail Systems, Inc.
#
"""
.. attention:: Fix the license string
"""
import sys
import copy
import requests
import re
import uuid
from cfgm_common import jsonutils as json
import time
import socket
import netaddr
from netaddr import IPNetwork, IPSet, IPAddress
import gevent
import bottle
from neutron.common import constants
from cfgm_common import exceptions as vnc_exc
from vnc_api.vnc_api import *
from cfgm_common import SG_NO_RULE_FQ_NAME, SG_NO_RULE_NAME, UUID_PATTERN
import vnc_openstack
import vnc_cfg_api_server.context
from context import get_context, use_context
_DEFAULT_HEADERS = {
'Content-type': 'application/json; charset="UTF-8"', }
CREATE = 1
READ = 2
UPDATE = 3
DELETE = 4
# SNAT defines
_IFACE_ROUTE_TABLE_NAME_PREFIX = 'NEUTRON_IFACE_RT'
_IFACE_ROUTE_TABLE_NAME_PREFIX_REGEX = re.compile(
'%s_%s_%s' % (_IFACE_ROUTE_TABLE_NAME_PREFIX, UUID_PATTERN, UUID_PATTERN))
class LocalVncApi(VncApi):
def __init__(self, api_server_obj, *args, **kwargs):
if api_server_obj:
self.api_server_routes = dict((r.rule, r.callback)
for r in api_server_obj.api_bottle.routes
if r.method == 'GET')
self.POST_FOR_LIST_THRESHOLD = sys.maxsize
else:
self.api_server_routes = []
self.api_server_obj = api_server_obj
super(LocalVncApi, self).__init__(*args, **kwargs)
# def __init__
@use_context
def _request(self, op, url, data=None, *args, **kwargs):
# Override vnc_lib._request so that list requests can reach
# api_server_obj methods directly instead of system call.
# Always pass contextual user_token aka mux connection to api-server
try:
user_token = get_context().user_token
if 'X-AUTH-TOKEN' in self._headers:
# retain/restore if there was already a token on channel
orig_user_token = self._headers['X-AUTH-TOKEN']
had_user_token = True
self._headers['X-AUTH-TOKEN'] = user_token
else:
had_user_token = False
if op != rest.OP_GET or url not in self.api_server_routes:
return super(LocalVncApi, self)._request(
op, url, data, *args, **kwargs)
server_method = self.api_server_routes[url]
if data:
q_str = '&'.join(['%s=%s' %(k,v) for k,v in data.items()])
else:
q_str = None
if user_token:
auth_hdrs = self.api_server_obj.get_auth_headers_from_token(
get_context().request, user_token)
else:
auth_hdrs = {}
environ = {
'PATH_INFO': url,
'QUERY_STRING': q_str,
'bottle.app': self.api_server_obj.api_bottle
}
environ.update(auth_hdrs)
vnc_cfg_api_server.context.set_context(
vnc_cfg_api_server.context.ApiContext(
external_req=bottle.BaseRequest(environ))
)
ret_val = server_method()
# make deepcopy of ref['attr'] as from_dict will update
# in-place and change the cached value
try:
# strip / in /virtual-networks
coll_key = url[1:]
item_key = url[1:-1]
ret_list = ret_val[coll_key]
for ret_item in ret_list:
if not isinstance(ret_item, dict):
continue
ref_backrefs = [f for f in ret_item[item_key]
if f.endswith('_refs')]
for rb in ref_backrefs:
# TODO optimize to deepcopy only if 'attr' is there
ret_item[item_key][rb] = copy.deepcopy(
ret_item[item_key][rb])
except KeyError:
pass
return ret_val
finally:
if had_user_token:
self._headers['X-AUTH-TOKEN'] = orig_user_token
# end _request
# end class LocalVncApi
class DBInterface(object):
"""
An instance of this class forwards requests to vnc cfg api (web)server
"""
Q_URL_PREFIX = '/extensions/ct'
def __init__(self, manager, admin_name, admin_password, admin_tenant_name,
api_srvr_ip, api_srvr_port,
api_server_obj=None, user_info=None,
contrail_extensions_enabled=True,
list_optimization_enabled=False,
apply_subnet_host_routes=False,
strict_compliance=False):
self._manager = manager
self.logger = manager.logger
self._api_srvr_ip = api_srvr_ip
self._api_srvr_port = api_srvr_port
self._api_server_obj = api_server_obj
self._apply_subnet_host_routes = apply_subnet_host_routes
self._strict_compliance = strict_compliance
self._contrail_extensions_enabled = contrail_extensions_enabled
self._list_optimization_enabled = list_optimization_enabled
# Retry till a api-server is up
self._connected_to_api_server = gevent.event.Event()
connected = False
while not connected:
try:
self._vnc_lib = LocalVncApi(self._api_server_obj,
admin_name, admin_password,
admin_tenant_name, api_srvr_ip,
api_srvr_port, '/', user_info=user_info,
exclude_hrefs=True)
self._connected_to_api_server.set()
connected = True
except requests.exceptions.RequestException as e:
gevent.sleep(3)
#end __init__
# Helper routines
def _request_api_server(self, url, method, data=None, headers=None):
from eventlet.greenthread import getcurrent
token = getcurrent().contrail_vars.token
if method == 'GET':
return requests.get(url)
if method == 'POST':
return requests.post(url, data=data, headers=headers)
if method == 'DELETE':
return requests.delete(url)
#end _request_api_server
def _relay_request(self, request):
"""
Send received request to api server
"""
# chop neutron parts of url and add api server address
url_path = re.sub(self.Q_URL_PREFIX, '', request.environ['PATH_INFO'])
url = "http://%s:%s%s" % (self._api_srvr_ip, self._api_srvr_port,
url_path)
return self._request_api_server(
url, request.environ['REQUEST_METHOD'],
request.body, {'Content-type': request.environ['CONTENT_TYPE']})
#end _relay_request
def _validate_project_ids(self, context=None, filters=None):
if context and not context['is_admin']:
return [str(uuid.UUID(context['tenant']))]
if not filters.get('tenant_id'):
return None
return_project_ids = []
for project_id in filters.get('tenant_id'):
try:
return_project_ids.append(str(uuid.UUID(project_id)))
except ValueError:
continue
return return_project_ids
def _obj_to_dict(self, obj):
return self._vnc_lib.obj_to_dict(obj)
#end _obj_to_dict
def _get_plugin_property(self, property_in):
fq_name=['default-global-system-config'];
gsc_obj = self._vnc_lib.global_system_config_read(fq_name);
plugin_settings = gsc_obj.plugin_tuning.plugin_property
for each_setting in plugin_settings:
if each_setting.property == property_in:
return each_setting.value
return None
#end _get_plugin_property
def _ensure_instance_exists(self, instance_id, tenant_id):
instance_name = instance_id
instance_obj = VirtualMachine(instance_name)
try:
try:
uuid.UUID(instance_id)
instance_obj.uuid = instance_id
except ValueError:
# if instance_id is not a valid uuid, let
# virtual_machine_create generate uuid for the vm
pass
self._vnc_lib.virtual_machine_create(instance_obj)
# set instance ownership to real tenant
self._vnc_lib.chown(instance_id, tenant_id)
except RefsExistError as e:
instance_obj = self._vnc_lib.virtual_machine_read(id=instance_obj.uuid)
return instance_obj
#end _ensure_instance_exists
def _ensure_default_security_group_exists(self, proj_id):
proj_id = str(uuid.UUID(proj_id))
proj_obj = self._vnc_lib.project_read(id=proj_id, fields=['security_groups'])
vnc_openstack.ensure_default_security_group(self._vnc_lib, proj_obj)
#end _ensure_default_security_group_exists
def _get_obj_tenant_id(self, q_type, obj_uuid):
# Seed the cache and return
if q_type == 'port':
port_obj = self._virtual_machine_interface_read(obj_uuid)
if port_obj.parent_type != "project":
net_id = port_obj.get_virtual_network_refs()[0]['uuid']
# recurse up type-hierarchy
tenant_id = self._get_obj_tenant_id('network', net_id)
else:
tenant_id = port_obj.parent_uuid.replace('-', '')
return tenant_id
if q_type == 'network':
net_obj = self._virtual_network_read(net_id=obj_uuid)
tenant_id = net_obj.parent_uuid.replace('-', '')
return tenant_id
return None
#end _get_obj_tenant_id
def _project_read(self, proj_id=None, fq_name=None):
proj_obj = self._vnc_lib.project_read(id=proj_id, fq_name=fq_name)
return proj_obj
#end _project_read
def _get_tenant_id_for_create(self, context, resource):
if context['is_admin'] and 'tenant_id' in resource:
tenant_id = resource['tenant_id']
elif ('tenant_id' in resource and
resource['tenant_id'] != context['tenant_id']):
reason = _('Cannot create resource for another tenant')
self._raise_contrail_exception('AdminRequired', reason=reason)
else:
tenant_id = context['tenant_id']
return tenant_id
# Encode and send an excption information to neutron. exc must be a
# valid exception class name in neutron, kwargs must contain all
# necessary arguments to create that exception
def _raise_contrail_exception(self, exc, **kwargs):
exc_info = {'exception': exc}
exc_info.update(kwargs)
bottle.abort(400, json.dumps(exc_info))
#end _raise_contrail_exception
def _security_group_rule_create(self, sg_id, sg_rule):
try:
sg_vnc = self._vnc_lib.security_group_read(id=sg_id)
except NoIdError:
self._raise_contrail_exception('SecurityGroupNotFound', id=sg_id)
rules = sg_vnc.get_security_group_entries()
if rules is None:
rules = PolicyEntriesType([sg_rule])
else:
rules.add_policy_rule(sg_rule)
sg_vnc.set_security_group_entries(rules)
try:
self._vnc_lib.security_group_update(sg_vnc)
except (BadRequest, PermissionDenied) as e:
self._raise_contrail_exception('BadRequest',
resource='security_group_rule', msg=str(e))
except OverQuota as e:
self._raise_contrail_exception('OverQuota',
overs=['security_group_rule'], msg=str(e))
except RefsExistError as e:
try:
rule_uuid = str(e).split(':')[1].strip()
except IndexError:
rule_uuid = None
self._raise_contrail_exception('SecurityGroupRuleExists',
resource='security_group_rule', id=rule_uuid, rule_id=rule_uuid)
# end _security_group_rule_create
def _security_group_rule_find(self, sgr_id, project_uuid=None):
# Get all security group for a project if project uuid is specified
# else get all security groups in the system(admin context)
project_sgs = self._security_group_list_project(project_uuid)
for sg_obj in project_sgs:
sgr_entries = sg_obj.get_security_group_entries()
if sgr_entries is None:
continue
for sg_rule in sgr_entries.get_policy_rule():
if sg_rule.get_rule_uuid() == sgr_id:
return sg_obj, sg_rule
return None, None
#end _security_group_rule_find
def _security_group_rule_delete(self, sg_obj, sg_rule):
rules = sg_obj.get_security_group_entries()
rules.get_policy_rule().remove(sg_rule)
sg_obj.set_security_group_entries(rules)
self._vnc_lib.security_group_update(sg_obj)
#end _security_group_rule_delete
def _security_group_delete(self, sg_id):
self._vnc_lib.security_group_delete(id=sg_id)
#end _security_group_delete
def _svc_instance_create(self, si_obj):
try:
si_uuid = self._vnc_lib.service_instance_create(si_obj)
except RefsExistError as e:
self._raise_contrail_exception('BadRequest',
resource='svc_instance', msg=str(e))
st_fq_name = ['default-domain', 'nat-template']
st_obj = self._vnc_lib.service_template_read(fq_name=st_fq_name)
si_obj.set_service_template(st_obj)
self._vnc_lib.service_instance_update(si_obj)
return si_uuid
#end _svc_instance_create
def _svc_instance_delete(self, si_id):
self._vnc_lib.service_instance_delete(id=si_id)
#end _svc_instance_delete
def _route_table_create(self, rt_obj):
rt_uuid = self._vnc_lib.route_table_create(rt_obj)
return rt_uuid
#end _route_table_create
def _route_table_delete(self, rt_id):
self._vnc_lib.route_table_delete(id=rt_id)
#end _route_table_delete
def _resource_create(self, resource_type, obj):
create_method = getattr(self._vnc_lib, resource_type + '_create')
try:
try:
obj_uuid = create_method(obj)
except RefsExistError:
obj.uuid = str(uuid.uuid4())
obj.name += '-' + obj.uuid
obj.fq_name[-1] += '-' + obj.uuid
obj_uuid = create_method(obj)
except (PermissionDenied, BadRequest) as e:
self._raise_contrail_exception('BadRequest',
resource=resource_type, msg=str(e))
except OverQuota as e:
self._raise_contrail_exception('OverQuota',
overs=[resource_type], msg=str(e))
return obj_uuid
#end _resource_create
def _virtual_network_read(self, net_id=None, fq_name=None, fields=None):
net_obj = self._vnc_lib.virtual_network_read(id=net_id,
fq_name=fq_name,
fields=fields)
return net_obj
#end _virtual_network_read
def _virtual_network_update(self, net_obj):
try:
self._vnc_lib.virtual_network_update(net_obj)
except (PermissionDenied, RefsExistError) as e:
self._raise_contrail_exception('BadRequest',
resource='network', msg=str(e))
# read back to get subnet gw allocated by api-server
fq_name_str = json.dumps(net_obj.get_fq_name())
#end _virtual_network_update
def _virtual_network_delete(self, net_id):
fq_name_str = None
try:
net_obj = self._vnc_lib.virtual_network_read(id=net_id)
fq_name_str = json.dumps(net_obj.get_fq_name())
except NoIdError:
return
try:
if net_obj.get_floating_ip_pools():
fip_pools = net_obj.get_floating_ip_pools()
for fip_pool in fip_pools:
self._floating_ip_pool_delete(fip_pool_id=fip_pool['uuid'])
self._vnc_lib.virtual_network_delete(id=net_id)
except RefsExistError:
self._raise_contrail_exception('NetworkInUse', net_id=net_id)
#end _virtual_network_delete
def _virtual_network_list(self, parent_id=None, obj_uuids=None,
fields=None, detail=False, count=False,
filters=None):
return self._vnc_lib.virtual_networks_list(
parent_id=parent_id,
obj_uuids=obj_uuids,
fields=fields,
detail=detail,
count=count,
filters=filters)
#end _virtual_network_list
def _virtual_machine_interface_read(self, port_id=None, fq_name=None,
fields=None):
fields = set(['logical_router_back_refs',
'instance_ip_back_refs',
'floating_ip_back_refs']) | set(fields or [])
port_obj = self._vnc_lib.virtual_machine_interface_read(
id=port_id, fq_name=fq_name, fields=fields)
return port_obj
#end _virtual_machine_interface_read
def _virtual_machine_interface_update(self, port_obj):
self._vnc_lib.virtual_machine_interface_update(port_obj)
#end _virtual_machine_interface_update
def _virtual_machine_interface_delete(self, port_id):
self._vnc_lib.virtual_machine_interface_delete(id=port_id)
#end _virtual_machine_interface_delete
def _virtual_machine_interface_list(self, parent_id=None, back_ref_id=None,
obj_uuids=None, fields=None):
back_ref_fields = ['logical_router_back_refs', 'instance_ip_back_refs', 'floating_ip_back_refs']
if fields:
n_extra_fields = list(set(fields + back_ref_fields))
else:
n_extra_fields = back_ref_fields
vmi_objs = self._vnc_lib.virtual_machine_interfaces_list(
parent_id=parent_id,
back_ref_id=back_ref_id,
obj_uuids=obj_uuids,
detail=True,
fields=n_extra_fields)
return vmi_objs
#end _virtual_machine_interface_list
def _instance_ip_create(self, iip_obj):
iip_uuid = self._vnc_lib.instance_ip_create(iip_obj)
return iip_uuid
#end _instance_ip_create
def _instance_ip_read(self, instance_ip_id=None, fq_name=None):
iip_obj = self._vnc_lib.instance_ip_read(id=instance_ip_id,
fq_name=fq_name)
return iip_obj
#end _instance_ip_read
def _instance_ip_update(self, iip_obj):
self._vnc_lib.instance_ip_update(iip_obj)
#end _instance_ip_update
def _instance_ip_delete(self, instance_ip_id):
self._vnc_lib.instance_ip_delete(id=instance_ip_id)
#end _instance_ip_delete
def _virtual_machine_list(self, back_ref_id=None, obj_uuids=None, fields=None):
vm_objs = self._vnc_lib.virtual_machines_list(detail=True,
back_ref_id=back_ref_id,
obj_uuids=obj_uuids,
fields=fields)
return vm_objs
#end _virtual_machine_list
def _instance_ip_list(self, back_ref_id=None, obj_uuids=None, fields=None):
iip_objs = self._vnc_lib.instance_ips_list(detail=True,
back_ref_id=back_ref_id,
obj_uuids=obj_uuids,
fields=fields)
return iip_objs
#end _instance_ip_list
def _floating_ip_pool_create(self, fip_pool_obj):
fip_pool_uuid = self._vnc_lib.floating_ip_pool_create(fip_pool_obj)
return fip_pool_uuid
# end _floating_ip_pool_create
def _floating_ip_pool_delete(self, fip_pool_id):
fip_pool_uuid = self._vnc_lib.floating_ip_pool_delete(id=fip_pool_id)
# end _floating_ip_pool_delete
# find projects on a given domain
def _project_list_domain(self, domain_id):
# TODO till domain concept is not present in keystone
fq_name = ['default-domain']
resp_dict = self._vnc_lib.projects_list(parent_fq_name=fq_name)
return resp_dict['projects']
#end _project_list_domain
# find network ids on a given project
def _network_list_project(self, project_id, count=False, filters=None):
if project_id:
try:
project_uuid = str(uuid.UUID(project_id))
except Exception:
print "Error in converting uuid %s" % (project_id)
else:
project_uuid = None
if count:
ret_val = self._virtual_network_list(parent_id=project_uuid,
count=True, filters=filters)
else:
ret_val = self._virtual_network_list(parent_id=project_uuid,
detail=True, filters=filters)
return ret_val
#end _network_list_project
# find router ids on a given project
def _router_list_project(self, project_id=None, detail=False):
if project_id:
try:
project_uuid = str(uuid.UUID(project_id))
except Exception:
print "Error in converting uuid %s" % (project_id)
return []
else:
project_uuid = None
resp = self._vnc_lib.logical_routers_list(parent_id=project_uuid,
detail=detail)
if detail:
return resp
return resp['logical-routers']
#end _router_list_project
def _ipam_list_project(self, project_id):
try:
project_uuid = str(uuid.UUID(project_id))
except Exception:
print "Error in converting uuid %s" % (project_id)
resp_dict = self._vnc_lib.network_ipams_list(parent_id=project_uuid)
return resp_dict['network-ipams']
#end _ipam_list_project
def _security_group_list_project(self, project_id, filters=None):
if project_id:
try:
project_uuid = str(uuid.UUID(project_id))
# Trigger a project read to ensure project sync
project_obj = self._project_read(proj_id=project_uuid)
except vnc_exc.NoIdError:
return []
else:
project_uuid = None
obj_uuids=None
if filters and 'id' in filters:
obj_uuids = filters['id']
sg_objs = self._vnc_lib.security_groups_list(parent_id=project_uuid,
detail=True,
obj_uuids=obj_uuids)
return sg_objs
#end _security_group_list_project
def _security_group_entries_list_sg(self, sg_id):
try:
sg_uuid = str(uuid.UUID(sg_id))
except Exception:
print "Error in converting SG uuid %s" % (sg_id)
resp_dict = self._vnc_lib.security_groups_list(obj_uuids=[sg_uuid])
return resp_dict['security-groups']
#end _security_group_entries_list_sg
def _route_table_list_project(self, project_id):
try:
project_uuid = str(uuid.UUID(project_id))
except Exception:
print "Error in converting uuid %s" % (project_id)
resp_dict = self._vnc_lib.route_tables_list(parent_id=project_uuid)
return resp_dict['route-tables']
#end _route_table_list_project
def _svc_instance_list_project(self, project_id):
try:
project_uuid = str(uuid.UUID(project_id))
except Exception:
print "Error in converting uuid %s" % (project_id)
resp_dict = self._vnc_lib.service_instances_list(parent_id=project_id)
return resp_dict['service-instances']
#end _svc_instance_list_project
def _policy_list_project(self, project_id):
try:
project_uuid = str(uuid.UUID(project_id))
except Exception:
print "Error in converting uuid %s" % (project_id)
resp_dict = self._vnc_lib.network_policys_list(parent_id=project_uuid)
return resp_dict['network-policys']
#end _policy_list_project
def _logical_router_list(self, parent_id=None, back_ref_id=None,
obj_uuids=None, fields=None):
rtr_obj = self._vnc_lib.logical_routers_list(parent_id=parent_id,
back_ref_id=back_ref_id,
obj_uuids=obj_uuids,
detail=True,
fields=fields)
return rtr_obj
#end _logical_router_list
def _logical_router_read(self, rtr_id=None, fq_name=None):
rtr_obj = self._vnc_lib.logical_router_read(id=rtr_id, fq_name=fq_name)
return rtr_obj
#end _logical_router_read
def _logical_router_update(self, rtr_obj):
self._vnc_lib.logical_router_update(rtr_obj)
fq_name_str = json.dumps(rtr_obj.get_fq_name())
#end _logical_router_update
def _logical_router_delete(self, rtr_id):
try:
self._vnc_lib.logical_router_delete(id=rtr_id)
except RefsExistError:
self._raise_contrail_exception('RouterInUse', router_id=rtr_id)
#end _logical_router_delete
def _floatingip_list(self, obj_uuids=None, back_ref_id=None):
return self._vnc_lib.floating_ips_list(obj_uuids=obj_uuids,
back_ref_id=back_ref_id,
detail=True)
#end _floatingip_list
# find floating ip pools a project has access to
def _fip_pool_refs_project(self, project_id):
project_obj = self._project_read(proj_id=project_id)
return project_obj.get_floating_ip_pool_refs()
#end _fip_pool_refs_project
def _network_list_shared_and_ext(self):
ret_list = []
nets = self._network_list_project(project_id=None,
filters={'is_shared':True, 'router_external':True})
for net in nets:
if net.get_router_external() and net.get_is_shared():
ret_list.append(net)
return ret_list
# end _network_list_router_external
def _network_list_router_external(self):
ret_list = []
nets = self._network_list_project(project_id=None,
filters={'router_external':True})
for net in nets:
if not net.get_router_external():
continue
ret_list.append(net)
return ret_list
# end _network_list_router_external
def _network_list_shared(self):
ret_list = []
nets = self._network_list_project(project_id=None,
filters={'is_shared':True})
for net in nets:
if not net.get_is_shared():
continue
ret_list.append(net)
return ret_list
# end _network_list_shared
# find networks of floating ip pools project has access to
def _fip_pool_ref_networks(self, project_id):
ret_net_objs = self._network_list_shared()
proj_fip_pool_refs = self._fip_pool_refs_project(project_id)
if not proj_fip_pool_refs:
return ret_net_objs
for fip_pool_ref in proj_fip_pool_refs:
fip_uuid = fip_pool_ref['uuid']
fip_pool_obj = self._vnc_lib.floating_ip_pool_read(id=fip_uuid)
net_uuid = fip_pool_obj.parent_uuid
net_obj = self._virtual_network_read(net_id=net_uuid)
ret_net_objs.append(net_obj)
return ret_net_objs
#end _fip_pool_ref_networks
# find floating ip pools defined by network
def _fip_pool_list_network(self, net_id):
resp_dict = self._vnc_lib.floating_ip_pools_list(parent_id=net_id)
return resp_dict['floating-ip-pools']
#end _fip_pool_list_network
def _port_list(self, port_objs):
ret_q_ports = []
if not port_objs:
return ret_q_ports
memo_req = {'networks': {},
'subnets': {},
'virtual-machines': {},
'instance-ips': {},
'service-instances': {}}
# Read only the nets associated to port_objs
net_refs = [port_obj.get_virtual_network_refs() for port_obj in port_objs]
net_ids = set(ref[0]['uuid'] for ref in net_refs if ref)
net_objs = self._virtual_network_list(obj_uuids=list(net_ids),
detail=True)
for net_obj in net_objs:
# dictionary of iip_uuid to iip_obj
memo_req['networks'][net_obj.uuid] = net_obj
subnets_info = self._virtual_network_to_subnets(net_obj)
memo_req['subnets'][net_obj.uuid] = subnets_info
# Read only the instance-ips associated to port_objs
iip_objs = self._instance_ip_list(back_ref_id=
[port_obj.uuid for port_obj in port_objs])
memo_req['instance-ips'] = dict((iip_obj.uuid, iip_obj) for iip_obj in iip_objs)
# Read only the VMs associated to port_objs
vm_ids = []
for port_obj in port_objs:
if port_obj.parent_type == 'virtual-machine':
# created in <1.06 schema with VM as port parent
vm_id = self._vnc_lib.fq_name_to_id('virtual-machine',
port_obj.get_fq_name()[:-1])
vm_ids.append(vm_id)
else:
vm_refs = port_obj.get_virtual_machine_refs() or []
vm_ids.extend([ref['uuid'] for ref in vm_refs if ref])
vm_objs = self._virtual_machine_list(obj_uuids=vm_ids)
memo_req['virtual-machines'] = dict((vm_obj.uuid, vm_obj) for vm_obj in vm_objs)
# Read only SIs associated with vm_objs
si_ids = [si_ref['uuid']
for vm_obj in vm_objs
for si_ref in vm_obj.get_service_instance_refs() or []]
if si_ids:
si_objs = self._vnc_lib.service_instances_list(
obj_uuids=si_ids, fields=['logical_router_back_refs'],
detail=True)
memo_req['service-instances'] = dict(
(si_obj.uuid, si_obj) for si_obj in si_objs)
# Convert port from contrail to neutron repr with the memo cache
for port_obj in port_objs:
try:
port_info = self._port_vnc_to_neutron(port_obj, memo_req)
except NoIdError:
continue
except Exception as e:
self.logger.error("Error in _port_list: %s", str(e))
continue
ret_q_ports.append(port_info)
return ret_q_ports
#end _port_list
def _port_list_network(self, network_ids, count=False):
ret_list = []
if not network_ids:
return ret_list
all_port_objs = self._virtual_machine_interface_list(
back_ref_id=network_ids)
return self._port_list(all_port_objs)
#end _port_list_network
# find port ids on a given project
def _port_list_project(self, project_id, count=False, is_admin=False):
if self._list_optimization_enabled:
if count:
port_objs = self._virtual_machine_interface_list(parent_id=project_id)
return len(port_objs)
# it is a list operation, not count
all_port_objs = self._virtual_machine_interface_list(parent_id=project_id)
return self._port_list(all_port_objs)
else:
if count:
ret_val = 0
else:
ret_val = []
net_objs = self._virtual_network_list(project_id,
fields=['virtual_machine_interface_back_refs'],
detail=True)
if not net_objs:
return ret_val
if count:
for net_obj in net_objs:
port_back_refs = (
net_obj.get_virtual_machine_interface_back_refs() or [])
ret_val = ret_val + len(port_back_refs)
return ret_val
net_ids = [net_obj.uuid for net_obj in net_objs]
port_objs = self._virtual_machine_interface_list(back_ref_id=net_ids)
return self._port_list(port_objs)
#end _port_list_project
# Returns True if
# * no filter is specified
# OR
# * search-param is not present in filters
# OR
# * 1. search-param is present in filters AND
# 2. resource matches param-list AND
# 3. shared parameter in filters is False
def _filters_is_present(self, filters, key_name, match_value):
if filters:
if key_name in filters:
try:
if key_name == 'tenant_id':
filter_value = [str(uuid.UUID(t_id))
for t_id in filters[key_name]]
else:
filter_value = filters[key_name]
idx = filter_value.index(match_value)
except ValueError: # not in requested list
return False
return True
#end _filters_is_present
def _network_read(self, net_uuid):
net_obj = self._virtual_network_read(net_id=net_uuid)
return net_obj
# end _network_read
def _subnet_vnc_read_mapping(self, id):
try:
return self._vnc_lib.kv_retrieve(id)
except NoIdError:
return None
# end _subnet_vnc_read_mapping
def _subnet_vnc_get_prefix(self, subnet_vnc):
pfx = subnet_vnc.subnet.get_ip_prefix()
pfx_len = subnet_vnc.subnet.get_ip_prefix_len()
network = IPNetwork('%s/%s' % (pfx, pfx_len))
return str(network)
# end _subnet_vnc_get_prefix
def _subnet_read(self, net_uuid, prefix):
try:
net_obj = self._virtual_network_read(net_id=net_uuid)
except NoIdError:
return None
ipam_refs = net_obj.get_network_ipam_refs()
for ipam_ref in ipam_refs or []:
subnet_vncs = ipam_ref['attr'].get_ipam_subnets()
for subnet_vnc in subnet_vncs:
if self._subnet_vnc_get_prefix(subnet_vnc) == prefix:
return subnet_vnc
return None
# end _subnet_read
def _ip_address_to_subnet_id(self, ip_addr, net_obj, memo_req=None):
# find subnet-id for ip-addr, called when instance-ip created
# first try if memo created during req can help avoid trips to
# backend
try:
subnets_info = memo_req['subnets'][net_obj.uuid]
for subnet_info in subnets_info:
if ip_addr in IPNetwork(subnet_info['cidr']):
subnet_id = subnet_info['id']
return subnet_id
except Exception:
# memo didnt help, need to reach backend for info
ipam_refs = net_obj.get_network_ipam_refs()
for ipam_ref in ipam_refs or []:
subnet_vncs = ipam_ref['attr'].get_ipam_subnets()
for subnet_vnc in subnet_vncs:
cidr = self._subnet_vnc_get_prefix(subnet_vnc)
if ip_addr in IPNetwork(subnet_info['cidr']):
subnet_id = subnet_vnc.subnet_uuid
return subnet_id
return None
#end _ip_address_to_subnet_id
# Returns a list of dicts of subnet-id:cidr for a VN
def _virtual_network_to_subnets(self, net_obj):
ret_subnets = []
ipam_refs = net_obj.get_network_ipam_refs()
if ipam_refs:
for ipam_ref in ipam_refs:
subnet_vncs = ipam_ref['attr'].get_ipam_subnets()
for subnet_vnc in subnet_vncs:
subnet_id = subnet_vnc.subnet_uuid
cidr = self._subnet_vnc_get_prefix(subnet_vnc)
ret_subnets.append({'id': subnet_id, 'cidr': cidr})
return ret_subnets
# end _virtual_network_to_subnets
# Conversion routines between VNC and Quantum objects
def _svc_instance_neutron_to_vnc(self, si_q, oper):
if oper == CREATE:
project_id = str(uuid.UUID(si_q['tenant_id']))
project_obj = self._project_read(proj_id=project_id)
net_id = si_q['external_net']
ext_vn = self._vnc_lib.virtual_network_read(id=net_id)
scale_out = ServiceScaleOutType(max_instances=1, auto_scale=False)
si_prop = ServiceInstanceType(
auto_policy=True,
left_virtual_network="",
right_virtual_network=ext_vn.get_fq_name_str(),
scale_out=scale_out)
si_prop.set_scale_out(scale_out)
si_vnc = ServiceInstance(name=si_q['name'],
parent_obj=project_obj,
service_instance_properties=si_prop)
return si_vnc
#end _svc_instance_neutron_to_vnc
def _svc_instance_vnc_to_neutron(self, si_obj):
si_q_dict = self._obj_to_dict(si_obj)
# replace field names
si_q_dict['id'] = si_obj.uuid
si_q_dict['tenant_id'] = si_obj.parent_uuid.replace('-', '')
si_q_dict['name'] = si_obj.name
si_props = si_obj.get_service_instance_properties()
if si_props:
vn_fq_name = si_props.get_right_virtual_network()
vn_obj = self._vnc_lib.virtual_network_read(fq_name_str=vn_fq_name)
si_q_dict['external_net'] = str(vn_obj.uuid) + ' ' + vn_obj.name
si_q_dict['internal_net'] = ''
return si_q_dict
#end _route_table_vnc_to_neutron
def _route_table_neutron_to_vnc(self, rt_q, oper):
if oper == CREATE:
project_id = str(uuid.UUID(rt_q['tenant_id']))
project_obj = self._project_read(proj_id=project_id)
rt_vnc = RouteTable(name=rt_q['name'],