/
__init__.py
1092 lines (950 loc) · 42.2 KB
/
__init__.py
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#
# Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
#
import uuid
import gevent
import gevent.event
import gevent.monkey
gevent.monkey.patch_all()
import requests
import copy
from cStringIO import StringIO
import bottle
import logging
import logging.handlers
import Queue
import ConfigParser
import keystoneclient.v2_0.client as keystone
import keystoneclient.v3.client as keystonev3
from netaddr import *
try:
from cfgm_common import vnc_plugin_base
from cfgm_common import utils as cfgmutils
except ImportError:
from common import vnc_plugin_base
from cfgm_common import utils as cfgmutils
from cfgm_common.utils import cgitb_hook
from pysandesh.sandesh_base import *
from pysandesh.sandesh_logger import *
from vnc_api import vnc_api
from vnc_api.gen.resource_xsd import *
from vnc_api.gen.resource_common import *
import neutron_plugin_interface as npi
from context import use_context
Q_CREATE = 'create'
Q_DELETE = 'delete'
Q_MAX_ITEMS = 1000
#Keystone SSL support
_DEFAULT_KS_CERT_BUNDLE="/tmp/keystonecertbundle.pem"
DEFAULT_SECGROUP_DESCRIPTION = "Default security group"
RETRIES_BEFORE_LOG = 100
def fill_keystone_opts(obj, conf_sections):
obj._auth_user = conf_sections.get('KEYSTONE', 'admin_user')
obj._auth_passwd = conf_sections.get('KEYSTONE', 'admin_password')
obj._admin_token = conf_sections.get('KEYSTONE', 'admin_token')
obj._admin_tenant = conf_sections.get('KEYSTONE', 'admin_tenant_name')
try:
obj._keystone_sync_on_demand = conf_sections.getboolean('KEYSTONE',
'keystone_sync_on_demand')
except ConfigParser.NoOptionError:
obj._keystone_sync_on_demand = True
try:
obj._insecure = conf_sections.getboolean('KEYSTONE', 'insecure')
except ConfigParser.NoOptionError:
obj._insecure = True
try:
obj._certfile = conf_sections.get('KEYSTONE', 'certfile')
except ConfigParser.NoOptionError:
obj._certfile = ''
try:
obj._keyfile = conf_sections.get('KEYSTONE', 'keyfile')
except ConfigParser.NoOptionError:
obj._keyfile = ''
try:
obj._cafile= conf_sections.get('KEYSTONE', 'cafile')
except ConfigParser.NoOptionError:
obj._cafile = ''
obj._kscertbundle=''
obj._use_certs=False
if obj._certfile:
certs = [obj._certfile]
if obj._keyfile and obj._cafile:
certs=[obj._certfile,obj._keyfile,obj._cafile]
obj._kscertbundle=cfgmutils.getCertKeyCaBundle(_DEFAULT_KS_CERT_BUNDLE,certs)
obj._use_certs=True
try:
obj._auth_url = conf_sections.get('KEYSTONE', 'auth_url')
except ConfigParser.NoOptionError:
# deprecated knobs - for backward compat
obj._auth_proto = conf_sections.get('KEYSTONE', 'auth_protocol')
obj._auth_host = conf_sections.get('KEYSTONE', 'auth_host')
obj._auth_port = conf_sections.get('KEYSTONE', 'auth_port')
obj._auth_url = "%s://%s:%s/v2.0" % (obj._auth_proto, obj._auth_host,
obj._auth_port)
try:
obj._err_file = conf_sections.get('DEFAULTS', 'trace_file')
except ConfigParser.NoOptionError:
obj._err_file = '/var/log/contrail/vnc_openstack.err'
try:
# Duration between polls to keystone to find deleted projects
resync_interval = conf_sections.get('DEFAULTS',
'keystone_resync_interval_secs')
except ConfigParser.NoOptionError:
resync_interval = '60'
obj._resync_interval_secs = int(resync_interval)
try:
# Number of workers used to process keystone project resyncing
resync_workers = conf_sections.get('DEFAULTS',
'keystone_resync_workers')
except ConfigParser.NoOptionError:
resync_workers = '10'
obj._resync_number_workers = int(resync_workers)
try:
# If new project with same name as an orphan project
# (gone in keystone, present in # contrail with resources within)
# is encountered,
# a. proceed with unique ified name (new_unique_fqn)
# b. refuse to sync (new_fail)
# c. cascade delete (TODO)
resync_mode = conf_sections.get('DEFAULTS',
'keystone_resync_stale_mode')
except ConfigParser.NoOptionError:
resync_mode = 'new_unique_fqn'
obj._resync_stale_mode = resync_mode
try:
# Get the domain_id for keystone v3
obj._domain_id = conf_sections.get('KEYSTONE', 'admin_domain_id')
except ConfigParser.NoOptionError:
obj._domain_id = 'default'
try:
# Get the user_domain_name for keystone v3
obj._user_domain_name = conf_sections.get('KEYSTONE', 'admin_user_domain_name')
except ConfigParser.NoOptionError:
obj._user_domain_name = 'Default'
try:
# Get the project_domain_name for keystone v3
obj._project_domain_name = conf_sections.get('KEYSTONE', 'project_domain_name')
except ConfigParser.NoOptionError:
obj._project_domain_name = None
try:
# Get the project_name for keystone v3
obj._project_name = conf_sections.get('KEYSTONE', 'project_name')
except ConfigParser.NoOptionError:
obj._project_name = obj._admin_tenant
try:
# Get the endpoint_type
obj._endpoint_type = conf_sections.get('KEYSTONE', 'endpoint_type')
except ConfigParser.NoOptionError:
obj._endpoint_type = None
def _create_default_security_group(vnc_lib, proj_obj):
def _get_rule(ingress, sg, prefix, ethertype):
sgr_uuid = str(uuid.uuid4())
if sg:
addr = AddressType(
security_group=proj_obj.get_fq_name_str() + ':' + sg)
elif prefix:
addr = AddressType(subnet=SubnetType(prefix, 0))
local_addr = AddressType(security_group='local')
if ingress:
src_addr = addr
dst_addr = local_addr
else:
src_addr = local_addr
dst_addr = addr
rule = PolicyRuleType(rule_uuid=sgr_uuid, direction='>',
protocol='any',
src_addresses=[src_addr],
src_ports=[PortType(0, 65535)],
dst_addresses=[dst_addr],
dst_ports=[PortType(0, 65535)],
ethertype=ethertype)
return rule
rules = [_get_rule(True, 'default', None, 'IPv4'),
_get_rule(True, 'default', None, 'IPv6'),
_get_rule(False, None, '0.0.0.0', 'IPv4'),
_get_rule(False, None, '::', 'IPv6')]
sg_rules = PolicyEntriesType(rules)
# create security group
id_perms = IdPermsType(enable=True,
description=DEFAULT_SECGROUP_DESCRIPTION)
sg_obj = vnc_api.SecurityGroup(name='default', parent_obj=proj_obj,
id_perms=id_perms,
security_group_entries=sg_rules)
vnc_lib.security_group_create(sg_obj)
# neutron doesn't propagate user token
vnc_lib.chown(sg_obj.get_uuid(), proj_obj.get_uuid())
def ensure_default_security_group(vnc_lib, proj_obj):
sg_groups = proj_obj.get_security_groups()
for sg_group in sg_groups or []:
if sg_group['to'][-1] == 'default':
return
_create_default_security_group(vnc_lib, proj_obj)
openstack_driver = None
class OpenstackDriver(vnc_plugin_base.Resync):
def __init__(self, api_server_ip, api_server_port, conf_sections, sandesh):
global openstack_driver
openstack_driver = self
if api_server_ip == '0.0.0.0':
self._vnc_api_ip = '127.0.0.1'
else:
self._vnc_api_ip = api_server_ip
self._vnc_api_port = api_server_port
self._config_sections = conf_sections
fill_keystone_opts(self, conf_sections)
if 'v3' in self._auth_url.split('/')[-1]:
self._get_keystone_conn = self._ksv3_get_conn
self._ks_domains_list = self._ksv3_domains_list
self._ks_domain_get = self._ksv3_domain_get
self._ks_projects_list = self._ksv3_projects_list
self._ks_project_get = self._ksv3_project_get
self.sync_project_to_vnc = self._ksv3_sync_project_to_vnc
self._add_project_to_vnc = self._ksv3_add_project_to_vnc
self._del_project_from_vnc = self._ksv3_del_project_from_vnc
self._vnc_default_domain_id = None
else:
self._get_keystone_conn = self._ksv2_get_conn
self._ks_domains_list = None
self._ks_domain_get = None
self._ks_projects_list = self._ksv2_projects_list
self._ks_project_get = self._ksv2_project_get
self.sync_project_to_vnc = self._ksv2_sync_project_to_vnc
self._add_project_to_vnc = self._ksv2_add_project_to_vnc
self._del_project_from_vnc = self._ksv2_del_project_from_vnc
self._ks = None
self._vnc_lib = None
# resync failures, don't retry forever
self._failed_domain_dels = set()
self._failed_project_dels = set()
# active domains/projects in contrail/vnc api server
self._vnc_domain_ids = set()
self._vnc_project_ids = set()
# logging
self._sandesh_logger = sandesh.logger()
self._vnc_os_logger = logging.getLogger(__name__)
self._vnc_os_logger.setLevel(logging.ERROR)
# Add the log message handler to the logger
try:
with open(self._err_file, 'a'):
handler = logging.handlers.RotatingFileHandler(
self._err_file, maxBytes=64*1024, backupCount=5)
self._vnc_os_logger.addHandler(handler)
except IOError:
self._sandesh_logger.error("Failed to open trace file %s" %
self._err_file)
self.q = Queue.Queue(maxsize=Q_MAX_ITEMS)
#end __init__
def _cgitb_error_log(self):
tmp_file = StringIO()
cgitb_hook(format="text", file=tmp_file)
self._vnc_os_logger.error("%s" % tmp_file.getvalue())
tmp_file.close()
def __call__(self):
pass
#end __call__
def _get_vnc_conn(self):
if self._vnc_lib:
return
self._vnc_lib = vnc_api.VncApi(
api_server_host=self._vnc_api_ip,
api_server_port=self._vnc_api_port,
username=self._auth_user,
password=self._auth_passwd,
tenant_name=self._admin_tenant)
# end _get_vnc_conn
def _ksv2_get_conn(self):
if not self._ks:
if self._admin_token:
if self._insecure:
self._ks = keystone.Client(token=self._admin_token,
endpoint=self._auth_url,
insecure=self._insecure)
elif not self._insecure and self._use_certs:
self._ks = keystone.Client(token=self._admin_token,
endpoint=self._auth_url,
cacert=self._kscertbundle)
else:
self._ks = keystone.Client(token=self._admin_token,
endpoint=self._auth_url)
else:
if self._insecure:
self._ks = keystone.Client(username=self._auth_user,
password=self._auth_passwd,
tenant_name=self._admin_tenant,
auth_url=self._auth_url,
insecure=self._insecure)
elif not self._insecure and self._use_certs:
self._ks = keystone.Client(username=self._auth_user,
password=self._auth_passwd,
tenant_name=self._admin_tenant,
auth_url=self._auth_url,
cacert=self._kscertbundle)
else:
self._ks = keystone.Client(username=self._auth_user,
password=self._auth_passwd,
tenant_name=self._admin_tenant,
auth_url=self._auth_url)
# end _ksv2_get_conn
def _ksv2_projects_list(self):
return [{'id': tenant.id} for tenant in self._ks.tenants.list()]
# end _ksv2_projects_list
def _ksv2_project_get(self, id):
# Note: under certain circumstances (if it has been initailized
# before endpoints are populated in keystone) keystoneclient may
# be valid to list projects, but not to read them. As it won't
# be reset by resync_all_projects, it is reseted on error here.
try:
return {'name': self._ks.tenants.get(id).name}
except Exception as e:
self._ks = None
self._get_keystone_conn()
return {'name': self._ks.tenants.get(id).name}
# end _ksv2_project_get
def _ksv2_sync_project_to_vnc(self, id=None):
self._get_keystone_conn()
self._get_vnc_conn()
ks_project = self._ks_project_get(id=id.replace('-', ''))
display_name = ks_project['name']
proj_name = display_name
# if earlier project exists with same name but diff id,
# create with uniqified fq_name
fq_name = ['default-domain', display_name]
try:
old_id = self._vnc_lib.fq_name_to_id('project', fq_name)
if old_id == id:
self._vnc_project_ids.add(id)
return
# Project might have been quickly deleted + added.
# Since project delete sync happens only in timer(polling),
# try deleting old one synchronously. If delete fails due
# to resources being present in project, proceed/fail
# based on configuration
try:
self._vnc_lib.project_delete(fq_name=fq_name)
except vnc_api.NoIdError:
pass
except vnc_api.RefsExistError:
if self._resync_stale_mode == 'new_unique_fqn':
proj_name = '%s-%s' %(display_name, str(uuid.uuid4()))
else:
errmsg = "Old project %s fqn %s exists and not empty" %(
old_id, fq_name)
self._sandesh_logger.error(errmsg)
raise Exception(errmsg)
except vnc_api.NoIdError:
pass
proj_obj = vnc_api.Project(proj_name)
proj_obj.display_name = display_name
proj_obj.uuid = id
self._vnc_lib.project_create(proj_obj)
self._vnc_project_ids.add(id)
# end _ksv2_sync_project_to_vnc
def _ksv2_add_project_to_vnc(self, project_id):
try:
self._vnc_lib.project_read(id=project_id)
# project exists, no-op for now,
# sync any attr changes in future
except vnc_api.NoIdError:
self._ksv2_sync_project_to_vnc(project_id)
# _ksv2_add_project_to_vnc
def _ksv2_del_project_from_vnc(self, project_id):
if project_id in self._failed_project_dels:
return
try:
self._vnc_lib.project_delete(id=project_id)
except vnc_api.NoIdError:
pass
except Exception as e:
self._cgitb_error_log()
self._sandesh_logger.error("Failed to delete project %s: %s" %
(project_id, e))
self._failed_project_dels.add(project_id)
# _ksv2_del_project_from_vnc
def _ksv3_get_conn(self):
if not self._ks:
if self._admin_token:
if not self._insecure and self._use_certs:
self._ks = keystonev3.Client(token=self._admin_token,
endpoint=self._auth_url,
verify=self._kscertbundle)
else:
self._ks = keystonev3.Client(token=self._admin_token,
endpoint=self._auth_url,
insecure=self._insecure)
elif self._project_domain_name:
self._ks = keystonev3.Client(user_domain_name=self._user_domain_name,
username=self._auth_user,
password=self._auth_passwd,
project_domain_name=self._project_domain_name,
project_name=self._project_name,
auth_url=self._auth_url,
insecure=self._insecure)
else:
if not self._insecure and self._use_certs:
self._ks = keystonev3.Client(user_domain_name=self._user_domain_name,
username=self._auth_user,
password=self._auth_passwd,
domain_id=self._domain_id,
auth_url=self._auth_url,
verify=self._kscertbundle)
else:
self._ks = keystonev3.Client(user_domain_name=self._user_domain_name,
username=self._auth_user,
password=self._auth_passwd,
domain_id=self._domain_id,
auth_url=self._auth_url,
insecure=self._insecure)
if self._endpoint_type and self._ks.service_catalog:
self._ks.management_url = \
self._ks.service_catalog.get_urls(
service_type='identity',
endpoint_type=self._endpoint_type)[0]
# end _ksv3_get_conn
def _ksv3_domains_list(self):
return [{'id': domain.id} for domain in self._ks.domains.list()]
# end _ksv3_domains_list
def _ksv3_domain_id_to_uuid(self, domain_id):
if domain_id == 'default':
return self._vnc_default_domain_id
return str(uuid.UUID(domain_id))
# _ksv3_domain_id_to_uuid
def _ksv3_domain_get(self, id=None):
try:
return {'name': self._ks.domains.get(id).name}
except:
self._ks = None
self._get_keystone_conn()
return {'name': self._ks.domains.get(id).name}
# end _ksv3_domain_get
def _ksv3_projects_list(self):
return [{'id': project.id} for project in self._ks.projects.list()]
# end _ksv3_projects_list
def _ksv3_project_get(self, id=None):
try:
project = self._ks.projects.get(id)
return {'id': project.id, 'name': project.name, 'domain_id': project.domain_id}
except Exception as e:
self._ks = None
self._get_keystone_conn()
project = self._ks.projects.get(id)
return {'id': project.id, 'name': project.name, 'domain_id': project.domain_id}
# end _ksv3_project_get
def _ksv3_sync_project_to_vnc(self, id=None, name=None):
self._get_keystone_conn()
self._get_vnc_conn()
if id:
ks_project = \
self._ks_project_get(id=id.replace('-', ''))
display_name = ks_project['name']
project_id = id
elif name:
ks_project = \
self._ks_project_get(name=name)
project_id = ks_project['id']
display_name = name
domain_uuid = self._ksv3_domain_id_to_uuid(ks_project['domain_id'])
dom_obj = self._vnc_lib.domain_read(id=domain_uuid)
# if earlier project exists with same name but diff id,
# create with uniqified fq_name
fq_name = dom_obj.get_fq_name() + [display_name]
project_name = display_name
try:
old_id = self._vnc_lib.fq_name_to_id('project', fq_name)
if old_id == project_id:
self._vnc_project_ids.add(project_id)
return
# Project might have been quickly deleted + added.
# Since project delete sync happens only in timer(polling),
# try deleting old one synchronously. If delete fails due
# to resources being present in project, proceed/fail
# based on configuration
try:
self._vnc_lib.project_delete(fq_name=fq_name)
except vnc_api.NoIdError:
pass
except vnc_api.RefsExistError:
if self._resync_stale_mode == 'new_unique_fqn':
project_name = '%s-%s' %(display_name, str(uuid.uuid4()))
else:
errmsg = "Old project %s fqn %s exists and not empty" %(
old_id, fq_name)
self._sandesh_logger.error(errmsg)
raise Exception(errmsg)
except vnc_api.NoIdError:
pass
proj_obj = vnc_api.Project(project_name, parent_obj=dom_obj)
proj_obj.display_name = display_name
proj_obj.uuid = project_id
self._vnc_lib.project_create(proj_obj)
self._vnc_domain_ids.add(domain_uuid)
self._vnc_project_ids.add(project_id)
# end _ksv3_sync_project_to_vnc
def _ksv3_add_project_to_vnc(self, project_id):
try:
self._vnc_lib.project_read(id=project_id)
# project exists, no-op for now,
# sync any attr changes in future
except vnc_api.NoIdError:
self._ksv3_sync_project_to_vnc(id=project_id)
# _ksv3_add_project_to_vnc
def _ksv3_del_project_from_vnc(self, project_id):
if project_id in self._failed_project_dels:
return
try:
self._vnc_lib.project_delete(id=project_id)
except vnc_api.NoIdError:
pass
except Exception as e:
self._cgitb_error_log()
self._sandesh_logger.error("Failed to delete project %s "
"from vnc: %s" % (project_id, e))
self._failed_project_dels.add(project_id)
# _ksv3_del_project_from_vnc
def sync_domain_to_vnc(self, domain_id):
self._get_keystone_conn()
self._get_vnc_conn()
ks_domain = \
self._ks_domain_get(domain_id.replace('-', ''))
display_name = ks_domain['name']
domain_name = display_name
# if earlier domain exists with same name but diff id,
# create with uniqified fq_name
fq_name = [display_name]
try:
old_id = self._vnc_lib.fq_name_to_id('domain', fq_name)
if domain_id == old_id:
self._vnc_domain_ids.add(domain_id)
return
# Domain might have been quickly deleted + added.
# Since domain delete sync happens only in timer(polling),
# try deleting old one synchronously. If delete fails due
# to resources being present in domain, proceed/fail
# based on configuration
try:
self._vnc_lib.domain_delete(fq_name=fq_name)
except vnc_api.NoIdError:
pass
except vnc_api.RefsExistError:
if self._resync_stale_mode == 'new_unique_fqn':
domain_name = '%s-%s' %(display_name, str(uuid.uuid4()))
else:
errmsg = "Old domain %s fqn %s exists and not empty" %(
old_id, fq_name)
self._sandesh_logger.error(errmsg)
raise Exception(errmsg)
except vnc_api.NoIdError:
pass
dom_obj = vnc_api.Domain(domain_name)
dom_obj.display_name = display_name
dom_obj.uuid = domain_id
self._vnc_lib.domain_create(dom_obj)
self._vnc_domain_ids.add(domain_id)
# sync_domain_to_vnc
def _add_domain_to_vnc(self, domain_id):
try:
self._vnc_lib.domain_read(id=domain_id)
# domain exists, no-op for now,
# sync any attr changes in future
except vnc_api.NoIdError:
self.sync_domain_to_vnc(domain_id)
# _add_domain_to_vnc
def _del_domain_from_vnc(self, domain_id):
if domain_id in self._failed_domain_dels:
return
try:
self._vnc_lib.domain_delete(id=domain_id)
except vnc_api.NoIdError:
pass
except Exception as e:
self._sandesh_logger.error("Failed to delete domain %s "
"from vnc: %s" % (domain_id, e))
self._cgitb_error_log()
self._failed_domain_dels.add(domain_id)
# _del_domain_from_vnc
def _resync_all_domains(self):
if not self._ks_domains_list:
# < keystonev3, no domains
return False
self._get_keystone_conn()
# compare new and old set,
# optimize for common case where nothing has changed,
# so track the project-ids in a set add '-',
# keystone gives uuid without...
try:
# The Default domain in ks(for v2 support) has id of 'default'
# replace with uuid of default-domain in vnc
ks_domain_ids = set(
[str(uuid.UUID(dom['id']))
for dom in self._ks_domains_list() if dom['id'] != 'default'])
ks_domain_ids.add(self._vnc_default_domain_id)
except Exception as e:
self._ks = None
return True # retry
vnc_domain_ids = self._vnc_domain_ids
if vnc_domain_ids == ks_domain_ids:
# no change, go back to poll
return False
for vnc_domain_id in vnc_domain_ids - ks_domain_ids:
self.q.put((Q_DELETE, 'domain', vnc_domain_id))
if self._keystone_sync_on_demand:
# pre_domain_read will get it
pass
else:
for ks_domain_id in ks_domain_ids - vnc_domain_ids:
self.q.put((Q_CREATE, 'domain', ks_domain_id))
self.q.join()
gevent.sleep(0)
# we are in sync
self._vnc_domain_ids = ks_domain_ids
return False
# end _resync_all_domains
def _resync_all_projects(self):
self._get_keystone_conn()
# compare new and old set,
# optimize for common case where nothing has changed,
# so track the project-ids in a set add '-',
# keystone gives uuid without...
try:
ks_project_ids = set(
[str(uuid.UUID(proj['id']))
for proj in self._ks_projects_list()])
except Exception as e:
self._ks = None
return True # retry
vnc_project_ids = self._vnc_project_ids
if vnc_project_ids == ks_project_ids:
# no change, go back to poll
return False
for vnc_project_id in vnc_project_ids - ks_project_ids:
self.q.put((Q_DELETE, 'project', vnc_project_id))
if self._keystone_sync_on_demand:
pass # pre_project_read will get it
else:
for ks_project_id in ks_project_ids - vnc_project_ids:
self.q.put((Q_CREATE, 'project', ks_project_id))
self.q.join()
gevent.sleep(0)
# we are in sync
self._vnc_project_ids = ks_project_ids
return False
# end _resync_all_projects
def _resync_domains_projects_forever(self):
try:
# get connection to api-server REST interface
while True:
try:
self._get_vnc_conn()
break
except requests.ConnectionError:
gevent.sleep(1)
vnc_domains = self._vnc_lib.domains_list()['domains']
for dom in vnc_domains:
self._vnc_domain_ids.add(dom['uuid'])
if dom['fq_name'] == ['default-domain']:
self._vnc_default_domain_id = dom['uuid']
vnc_all_projects = self._vnc_lib.projects_list()['projects']
# remove default-domain:default-project from audit list
default_proj_fq_name = ['default-domain', 'default-project']
vnc_project_ids = set([proj['uuid'] for proj in vnc_all_projects
if proj['fq_name'] != default_proj_fq_name])
self._vnc_project_ids = vnc_project_ids
except Exception as e:
self._cgitb_error_log()
self._sandesh_logger.error(
"Connection to API server failed: %s" % e)
while True:
# Get domains/projects from Keystone and audit with api-server
try:
retry = self._resync_all_domains()
if retry:
gevent.sleep(60)
continue
except Exception as e:
self._ks = None
self._cgitb_error_log()
self._sandesh_logger.error(
"Failed to resync domains: %s" % e)
try:
retry = self._resync_all_projects()
if retry:
gevent.sleep(60)
continue
except Exception as e:
self._ks = None
self._cgitb_error_log()
self._sandesh_logger.error(
"Failed to resync projects: %s" % e)
gevent.sleep(self._resync_interval_secs)
#end while True
#end _resync_domains_projects_forever
def resync_domains_projects(self):
# add asynchronously
self._main_glet = gevent.spawn(self._resync_domains_projects_forever)
self._worker_glets = []
for x in range(self._resync_number_workers):
self._worker_glets.append(gevent.spawn(self._resync_worker))
#end resync_domains_projects
def _resync_worker(self):
while True:
oper, obj_type, obj_id = self.q.get()
try:
if oper == Q_DELETE:
if obj_type == 'domain':
self._del_domain_from_vnc(obj_id)
elif obj_type == 'project':
self._del_project_from_vnc(obj_id)
else:
raise KeyError("An invalid obj_type was specified: %s",
obj_type)
elif oper == Q_CREATE:
if obj_type == 'domain':
self._add_domain_to_vnc(obj_id)
elif obj_type == 'project':
self._add_project_to_vnc(obj_id)
else:
raise KeyError("An invalid obj_type was specified: %s",
obj_type)
else:
raise KeyError("An invalid operation was specified: %s", oper)
except (ValueError, KeyError, Exception):
# For an unpack error or and invalid kind.
self.log_exception()
finally:
self.q.task_done()
# end _resync_worker
#end class OpenstackResync
class ResourceApiDriver(vnc_plugin_base.ResourceApi):
def __init__(self, api_server_ip, api_server_port, conf_sections, sandesh,
propagate_map_exceptions=False):
if api_server_ip == '0.0.0.0':
self._vnc_api_ip = '127.0.0.1'
else:
self._vnc_api_ip = api_server_ip
self._sandesh_logger = sandesh.logger()
self._vnc_api_port = api_server_port
self._config_sections = conf_sections
fill_keystone_opts(self, conf_sections)
self._vnc_lib = None
self._openstack_drv = openstack_driver
self._connected_to_api_server = gevent.event.Event()
self._conn_glet = gevent.spawn(self._get_api_connection)
# end __init__
def _get_api_connection(self):
if self._vnc_lib:
return
# get connection to api-server REST interface
tries = 0
while True:
try:
tries = tries + 1
self._vnc_lib = vnc_api.VncApi(
api_server_host=self._vnc_api_ip,
api_server_port=self._vnc_api_port,
username=self._auth_user,
password=self._auth_passwd,
tenant_name=self._admin_tenant)
self._connected_to_api_server.set()
vnc_lib = self._vnc_lib
domain_id = vnc_lib.fq_name_to_id(
'domain', ['default-domain'])
project_id = vnc_lib.fq_name_to_id(
'project', ['default-domain', 'default-project'])
break
except Exception as e:
if tries % RETRIES_BEFORE_LOG == 0:
err_msg = "Connect error to contrail api %s tries: %s" \
%(tries, e)
self._sandesh_logger.error(err_msg)
gevent.sleep(1)
# end _get_api_connection
def __call__(self):
pass
#end __call__
def _create_default_security_group(self, proj_dict):
proj_obj = vnc_api.Project.from_dict(**proj_dict)
ensure_default_security_group(self._vnc_lib, proj_obj)
# end _create_default_security_group
def wait_for_api_server_connection(func):
def wrapper(self, *args, **kwargs):
self._connected_to_api_server.wait()
return func(self, *args, **kwargs)
return wrapper
# end wait_for_api_server_connection
@wait_for_api_server_connection
def pre_domain_read(self, id):
if not self._keystone_sync_on_demand:
# domain added via poll
return
# use list instead of read as read will be recursive
# leading us back here!
dom_list = self._vnc_lib.domains_list(obj_uuids=[id])
if len(dom_list['domains']) == 1:
# read succeeded domain already known, done.
return
# follow through, and sync domain to contrail
try:
self._openstack_drv.sync_domain_to_vnc(id)
except vnc_api.RefsExistError as e:
# another api server has brought syncd it
pass
# end pre_domain_read
@wait_for_api_server_connection
def pre_project_read(self, id):
if not self._keystone_sync_on_demand:
# project added via poll
return
# use list instead of read as read will be recursive
# leading us back here!
proj_list = self._vnc_lib.projects_list(obj_uuids=[id])
if len(proj_list['projects']) == 1:
# read succeeded project already known, done.
return
# follow through, and sync project to contrail
try:
self._openstack_drv.sync_project_to_vnc(id)
except vnc_api.RefsExistError as e:
# another api server has brought syncd it
pass
# end pre_project_read
@wait_for_api_server_connection
def post_project_create(self, proj_dict):
self._create_default_security_group(proj_dict)
# end post_create_project
@wait_for_api_server_connection
def pre_project_delete(self, proj_uuid):
proj_obj = self._vnc_lib.project_read(id=proj_uuid)
sec_groups = proj_obj.get_security_groups()
for group in sec_groups or []:
if group['to'][2] == 'default':
self._vnc_lib.security_group_delete(id=group['uuid'])
# end pre_project_delete
@wait_for_api_server_connection
def pre_virtual_network_create(self, vn_dict):
pass
# end pre_virtual_network_create
@wait_for_api_server_connection
def post_virtual_network_create(self, vn_dict):
ipam_refs = vn_dict.get('network_ipam_refs', [])
for ipam_ref in ipam_refs:
vnsn_data = ipam_ref['attr']
ipam_subnets = vnsn_data['ipam_subnets']
for ipam_subnet in ipam_subnets:
subnet_dict = copy.deepcopy(ipam_subnet['subnet'])
prefix = subnet_dict['ip_prefix']
prefix_len = subnet_dict['ip_prefix_len']
network = IPNetwork('%s/%s' % (prefix, prefix_len))
subnet_name = vn_dict['uuid'] + ' ' + str(network.ip) + '/' + str(
subnet_dict['ip_prefix_len'])
subnet_uuid = ipam_subnet['subnet_uuid']
self._vnc_lib.kv_store(subnet_uuid, subnet_name)
self._vnc_lib.kv_store(subnet_name, subnet_uuid)
# end post_virtual_network_create
@wait_for_api_server_connection
def post_virtual_network_update(self, vn_uuid, vn_dict, old_dict):
ipam_refs = vn_dict.get('network_ipam_refs')
if ipam_refs is None:
return
def get_subnets(vn_dict):
subnets = {}
ipam_refs = vn_dict.get('network_ipam_refs')
if ipam_refs:
for ipam_ref in ipam_refs:
vnsn_data = ipam_ref['attr']
ipam_subnets = vnsn_data['ipam_subnets']
for ipam_subnet in ipam_subnets:
subnet_dict = copy.deepcopy(ipam_subnet['subnet'])
prefix = subnet_dict['ip_prefix']
prefix_len = subnet_dict['ip_prefix_len']
network = IPNetwork('%s/%s' % (prefix, prefix_len))
subnet_name = vn_dict['uuid'] + ' ' + \
subnet_dict['ip_prefix'] + '/' + \
str(subnet_dict['ip_prefix_len'])
subnet_uuid = ipam_subnet['subnet_uuid']
subnets[subnet_uuid] = subnet_name
return subnets
new_subnets = get_subnets(vn_dict)
existing_subnets = get_subnets(old_dict)
add_subnets = set(new_subnets.keys()) - set(existing_subnets.keys())
del_subnets = set(existing_subnets.keys()) - set(new_subnets.keys())
for subnet in del_subnets or []:
self._vnc_lib.kv_delete(existing_subnets[subnet])
self._vnc_lib.kv_delete(subnet)
for subnet in add_subnets or []:
self._vnc_lib.kv_store(new_subnets[subnet], subnet)
self._vnc_lib.kv_store(subnet, new_subnets[subnet])
# end post_virtual_network_update
@wait_for_api_server_connection
def post_virtual_network_delete(self, vn_uuid, vn_dict):
ipam_refs = vn_dict.get('network_ipam_refs', [])