NSXv3 DNS integration
Complete NSXv3 integration with openstack/designate Change-Id: Ie91864e132ded03777013c88bf9dab7a09bc1289
This commit is contained in:
Kobi Samoray
parent
b336b8cc03
commit
89b9171c58
vmware_nsx
@ -1,5 +1,4 @@
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# Copyright (c) 2016 IBM
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# Copyright (c) 2017 VMware, Inc.
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# Copyright (c) 2018 VMware, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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@ -17,6 +16,9 @@
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from neutron_lib.api.definitions import availability_zone as az_def
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from neutron_lib.api.definitions import dns
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from neutron_lib.api import validators
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from neutron_lib.callbacks import events
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from neutron_lib.callbacks import registry
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from neutron_lib.callbacks import resources
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from neutron_lib import context as n_context
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from neutron_lib.exceptions import dns as dns_exc
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from neutron_lib.plugins import directory
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@ -34,6 +36,12 @@ LOG = logging.getLogger(__name__)
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DNS_DOMAIN_DEFAULT = 'openstacklocal.'
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def _dotted_domain(dns_domain):
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if dns_domain.endswith('.'):
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return dns_domain
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return '%s.' % dns_domain
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# TODO(asarfaty) use dns-domain/nameserver from network az instead of global
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class DNSExtensionDriver(driver_api.ExtensionDriver):
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_supported_extension_alias = 'dns-integration'
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@ -81,27 +89,55 @@ class DNSExtensionDriver(driver_api.ExtensionDriver):
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db_data[dns.DNSDOMAIN] = new_value
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def process_create_port(self, plugin_context, request_data, db_data):
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if not request_data.get(dns.DNSNAME):
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if not (request_data.get(dns.DNSNAME) or
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request_data.get(dns.DNSDOMAIN)):
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return
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dns_name, is_dns_domain_default = self._get_request_dns_name(
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request_data, db_data['network_id'], plugin_context)
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if is_dns_domain_default:
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return
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network = self._get_network(plugin_context, db_data['network_id'])
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if self.external_dns_not_needed(
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plugin_context, network) or not network[dns.DNSDOMAIN]:
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current_dns_name = ''
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current_dns_domain = ''
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else:
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current_dns_name = dns_name
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current_dns_domain = network[dns.DNSDOMAIN]
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port_obj.PortDNS(plugin_context,
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port_id=db_data['id'],
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current_dns_name=current_dns_name,
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current_dns_domain=current_dns_domain,
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previous_dns_name='',
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previous_dns_domain='',
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dns_name=dns_name).create()
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self._create_port_dns_record(plugin_context, request_data, db_data,
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network, dns_name)
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def _create_port_dns_record(self, plugin_context, request_data, db_data,
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network, dns_name):
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external_dns_domain = (request_data.get(dns.DNSDOMAIN) or
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network.get(dns.DNSDOMAIN))
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current_dns_name, current_dns_domain = (
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self._calculate_current_dns_name_and_domain(
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dns_name, external_dns_domain,
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self.external_dns_not_needed(plugin_context, network)))
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dns_data_obj = port_obj.PortDNS(
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plugin_context,
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port_id=db_data['id'],
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current_dns_name=current_dns_name,
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current_dns_domain=current_dns_domain,
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previous_dns_name='',
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previous_dns_domain='',
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dns_name=dns_name,
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dns_domain=request_data.get(dns.DNSDOMAIN, ''))
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dns_data_obj.create()
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return dns_data_obj
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def _calculate_current_dns_name_and_domain(self, dns_name,
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external_dns_domain,
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no_external_dns_service):
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# When creating a new PortDNS object, the current_dns_name and
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# current_dns_domain fields hold the data that the integration driver
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# will send to the external DNS service. They are set to non-blank
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# values only if all the following conditions are met:
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# 1) There is an external DNS integration driver configured
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# 2) The user request contains a valid non-blank value for the port's
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# dns_name
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# 3) The user request contains a valid non-blank value for the port's
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# dns_domain or the port's network has a non-blank value in its
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# dns_domain attribute
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are_both_dns_attributes_set = dns_name and external_dns_domain
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if no_external_dns_service or not are_both_dns_attributes_set:
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return '', ''
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return dns_name, external_dns_domain
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def _update_dns_db(self, dns_name, dns_domain, db_data,
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plugin_context, has_fixed_ips):
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@ -202,9 +238,7 @@ class DNSExtensionDriver(driver_api.ExtensionDriver):
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def _get_dns_domain(self, network_id, context=None):
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if not cfg.CONF.dns_domain:
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return ''
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if cfg.CONF.dns_domain.endswith('.'):
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return cfg.CONF.dns_domain
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return '%s.' % cfg.CONF.dns_domain
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return _dotted_domain(cfg.CONF.dns_domain)
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def _get_request_dns_name(self, port, network_id, context):
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dns_domain = self._get_dns_domain(network_id, context)
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@ -301,22 +335,28 @@ class DNSExtensionDriverNSXv3(DNSExtensionDriver):
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# try to get the dns-domain from the specific availability zone
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# of this network
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az = self._get_network_az(network_id, context)
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if az.dns_domain:
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if (az.dns_domain
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and _dotted_domain(az.dns_domain) !=
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_dotted_domain(DNS_DOMAIN_DEFAULT)):
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dns_domain = az.dns_domain
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elif cfg.CONF.nsx_v3.dns_domain:
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elif (cfg.CONF.nsx_v3.dns_domain
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and (_dotted_domain(cfg.CONF.nsx_v3.dns_domain) !=
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_dotted_domain(DNS_DOMAIN_DEFAULT))):
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dns_domain = cfg.CONF.nsx_v3.dns_domain
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elif cfg.CONF.dns_domain:
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dns_domain = cfg.CONF.dns_domain
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else:
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return ''
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if dns_domain.endswith('.'):
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return dns_domain
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return '%s.' % dns_domain
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return _dotted_domain(dns_domain)
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def external_dns_not_needed(self, context, network):
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dns_driver = _get_dns_driver()
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if not dns_driver:
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return True
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provider_type = network.get('provider:network_type')
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if not provider_type:
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return True
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if network['router:external']:
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return True
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return False
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@ -355,3 +395,111 @@ def _get_dns_driver():
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"the external DNS service driver")
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raise dns_exc.ExternalDNSDriverNotFound(
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driver=cfg.CONF.external_dns_driver)
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def _send_data_to_external_dns_service(context, dns_driver, dns_domain,
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dns_name, records):
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try:
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dns_driver.create_record_set(context, dns_domain, dns_name, records)
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except (dns_exc.DNSDomainNotFound, dns_exc.DuplicateRecordSet) as e:
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LOG.exception("Error publishing port data in external DNS "
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"service. Name: '%(name)s'. Domain: '%(domain)s'. "
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"DNS service driver message '%(message)s'",
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{"name": dns_name,
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"domain": dns_domain,
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"message": e.msg})
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def _remove_data_from_external_dns_service(context, dns_driver, dns_domain,
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dns_name, records):
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try:
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dns_driver.delete_record_set(context, dns_domain, dns_name, records)
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except (dns_exc.DNSDomainNotFound, dns_exc.DuplicateRecordSet) as e:
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LOG.exception("Error deleting port data from external DNS "
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"service. Name: '%(name)s'. Domain: '%(domain)s'. "
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"IP addresses '%(ips)s'. DNS service driver message "
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"'%(message)s'",
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{"name": dns_name,
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"domain": dns_domain,
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"message": e.msg,
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"ips": ', '.join(records)})
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def _create_port_in_external_dns_service(resource, event, trigger, **kwargs):
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dns_driver = _get_dns_driver()
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if not dns_driver:
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return
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context = kwargs['context']
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port = kwargs['port']
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dns_data_db = port_obj.PortDNS.get_object(
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context, port_id=port['id'])
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if not (dns_data_db and dns_data_db['current_dns_name']):
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return
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records = [ip['ip_address'] for ip in port['fixed_ips']]
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_send_data_to_external_dns_service(context, dns_driver,
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dns_data_db['current_dns_domain'],
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dns_data_db['current_dns_name'],
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records)
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def _update_port_in_external_dns_service(resource, event, trigger, **kwargs):
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dns_driver = _get_dns_driver()
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if not dns_driver:
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return
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context = kwargs['context']
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updated_port = kwargs['port']
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original_port = kwargs.get('original_port')
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if not original_port:
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return
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original_ips = [ip['ip_address'] for ip in original_port['fixed_ips']]
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updated_ips = [ip['ip_address'] for ip in updated_port['fixed_ips']]
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is_dns_name_changed = (updated_port[dns.DNSNAME] !=
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original_port[dns.DNSNAME])
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is_dns_domain_changed = (dns.DNSDOMAIN in updated_port and
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updated_port[dns.DNSDOMAIN] !=
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original_port[dns.DNSDOMAIN])
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ips_changed = set(original_ips) != set(updated_ips)
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if not any((is_dns_name_changed, is_dns_domain_changed, ips_changed)):
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return
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dns_data_db = port_obj.PortDNS.get_object(
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context, port_id=updated_port['id'])
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if not (dns_data_db and
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(dns_data_db['previous_dns_name'] or
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dns_data_db['current_dns_name'])):
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return
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if dns_data_db['previous_dns_name']:
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_remove_data_from_external_dns_service(
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context, dns_driver, dns_data_db['previous_dns_domain'],
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dns_data_db['previous_dns_name'], original_ips)
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if dns_data_db['current_dns_name']:
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_send_data_to_external_dns_service(context, dns_driver,
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dns_data_db['current_dns_domain'],
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dns_data_db['current_dns_name'],
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updated_ips)
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def _delete_port_in_external_dns_service(resource, event, trigger, **kwargs):
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dns_driver = _get_dns_driver()
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if not dns_driver:
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return
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context = kwargs['context']
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port_id = kwargs['port_id']
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dns_data_db = port_obj.PortDNS.get_object(
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context, port_id=port_id)
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if not dns_data_db:
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return
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if dns_data_db['current_dns_name']:
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ip_allocations = port_obj.IPAllocation.get_objects(context,
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port_id=port_id)
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records = [str(alloc['ip_address']) for alloc in ip_allocations]
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_remove_data_from_external_dns_service(
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context, dns_driver, dns_data_db['current_dns_domain'],
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dns_data_db['current_dns_name'], records)
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registry.subscribe(
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_create_port_in_external_dns_service, resources.PORT, events.AFTER_CREATE)
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registry.subscribe(
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_update_port_in_external_dns_service, resources.PORT, events.AFTER_UPDATE)
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registry.subscribe(
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_delete_port_in_external_dns_service, resources.PORT, events.BEFORE_DELETE)
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@ -2612,6 +2612,8 @@ class NsxV3Plugin(agentschedulers_db.AZDhcpAgentSchedulerDbMixin,
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if not cfg.CONF.nsx_v3.native_dhcp_metadata:
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nsx_rpc.handle_port_metadata_access(self, context, neutron_db)
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kwargs = {'context': context, 'port': neutron_db}
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registry.notify(resources.PORT, events.AFTER_CREATE, self, **kwargs)
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return port_data
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def _pre_delete_port_check(self, context, port_id, l2gw_port_check):
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@ -3058,6 +3060,15 @@ class NsxV3Plugin(agentschedulers_db.AZDhcpAgentSchedulerDbMixin,
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if cfg.CONF.nsx_v3.native_dhcp_metadata:
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self._update_dhcp_binding(context, original_port, updated_port)
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# Notifications must be sent after the above transaction is complete
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kwargs = {
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'context': context,
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'port': updated_port,
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'mac_address_updated': False,
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'original_port': original_port,
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}
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registry.notify(resources.PORT, events.AFTER_UPDATE, self, **kwargs)
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return updated_port
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def _extend_get_port_dict_qos_and_binding(self, context, port):
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