Improve performance of generating dhcp leases
* Dont make 2 * instances queries when generating dhcp leases * Uses some nasty joins to minimize necessary changes * Adds test to verify functionality * Uses old sqlalchemy compatible join syntax * Uses vif_id as nw identifier for single_host_gateway mode * Cleans up tests in linux_net * Fixes bug 959378 Change-Id: I1c74d114dd7caad1781180585bb65691e536bcf9
This commit is contained in:
Vishvananda Ishaya
parent
cb0a25e825
commit
ffb9361596
@ -782,9 +782,9 @@ def network_get_all_by_uuids(context, network_uuids, project_id=None):
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# pylint: disable=C0103
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def network_get_associated_fixed_ips(context, network_id):
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def network_get_associated_fixed_ips(context, network_id, host=None):
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"""Get all network's ips that have been associated."""
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return IMPL.network_get_associated_fixed_ips(context, network_id)
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return IMPL.network_get_associated_fixed_ips(context, network_id, host)
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def network_get_by_bridge(context, bridge):
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@ -1990,15 +1990,49 @@ def network_get_all_by_uuids(context, network_uuids, project_id=None):
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@require_admin_context
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def network_get_associated_fixed_ips(context, network_id):
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def network_get_associated_fixed_ips(context, network_id, host=None):
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# FIXME(sirp): since this returns fixed_ips, this would be better named
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# fixed_ip_get_all_by_network.
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return model_query(context, models.FixedIp, read_deleted="no").\
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filter_by(network_id=network_id).\
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filter_by(allocated=True).\
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filter(models.FixedIp.instance_id != None).\
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filter(models.FixedIp.virtual_interface_id != None).\
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all()
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# NOTE(vish): The ugly joins here are to solve a performance issue and
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# should be removed once we can add and remove leases
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# without regenerating the whole list
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vif_and = and_(models.VirtualInterface.id ==
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models.FixedIp.virtual_interface_id,
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models.VirtualInterface.deleted == False)
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inst_and = and_(models.Instance.id == models.FixedIp.instance_id,
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models.Instance.deleted == False)
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session = get_session()
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query = session.query(models.FixedIp.address,
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models.FixedIp.instance_id,
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models.FixedIp.network_id,
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models.FixedIp.virtual_interface_id,
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models.VirtualInterface.address,
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models.Instance.hostname,
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models.Instance.updated_at,
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models.Instance.created_at).\
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filter(models.FixedIp.deleted == False).\
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filter(models.FixedIp.network_id == network_id).\
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filter(models.FixedIp.allocated == True).\
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join((models.VirtualInterface, vif_and)).\
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join((models.Instance, inst_and)).\
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filter(models.FixedIp.instance_id != None).\
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filter(models.FixedIp.virtual_interface_id != None)
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if host:
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query = query.filter(models.Instance.host == host)
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result = query.all()
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data = []
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for datum in result:
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cleaned = {}
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cleaned['address'] = datum[0]
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cleaned['instance_id'] = datum[1]
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cleaned['network_id'] = datum[2]
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cleaned['vif_id'] = datum[3]
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cleaned['vif_address'] = datum[4]
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cleaned['instance_hostname'] = datum[5]
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cleaned['instance_updated'] = datum[6]
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cleaned['instance_created'] = datum[7]
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data.append(cleaned)
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return data
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@require_admin_context
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@ -567,44 +567,26 @@ def initialize_gateway_device(dev, network_ref):
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def get_dhcp_leases(context, network_ref):
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"""Return a network's hosts config in dnsmasq leasefile format."""
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hosts = []
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for fixed_ref in db.network_get_associated_fixed_ips(context,
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network_ref['id']):
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vif_id = fixed_ref['virtual_interface_id']
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# NOTE(jkoelker) We need a larger refactor to happen to prevent
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# looking these up here
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vif_ref = db.virtual_interface_get(context, vif_id)
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instance_id = fixed_ref['instance_id']
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try:
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instance_ref = db.instance_get(context, instance_id)
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except exception.InstanceNotFound:
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msg = _("Instance %(instance_id)s not found")
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LOG.debug(msg % {'instance_id': instance_id})
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continue
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if network_ref['multi_host'] and FLAGS.host != instance_ref['host']:
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continue
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hosts.append(_host_lease(fixed_ref, vif_ref, instance_ref))
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host = None
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if network_ref['multi_host']:
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host = FLAGS.host
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for data in db.network_get_associated_fixed_ips(context,
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network_ref['id'],
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host=host):
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hosts.append(_host_lease(data))
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return '\n'.join(hosts)
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def get_dhcp_hosts(context, network_ref):
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"""Get network's hosts config in dhcp-host format."""
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hosts = []
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for fixed_ref in db.network_get_associated_fixed_ips(context,
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network_ref['id']):
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vif_id = fixed_ref['virtual_interface_id']
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# NOTE(jkoelker) We need a larger refactor to happen to prevent
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# looking these up here
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vif_ref = db.virtual_interface_get(context, vif_id)
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instance_id = fixed_ref['instance_id']
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try:
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instance_ref = db.instance_get(context, instance_id)
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except exception.InstanceNotFound:
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msg = _("Instance %(instance_id)s not found")
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LOG.debug(msg % {'instance_id': instance_id})
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continue
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if network_ref['multi_host'] and FLAGS.host != instance_ref['host']:
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continue
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hosts.append(_host_dhcp(fixed_ref, vif_ref, instance_ref))
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host = None
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if network_ref['multi_host']:
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host = FLAGS.host
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for data in db.network_get_associated_fixed_ips(context,
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network_ref['id'],
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host=host):
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hosts.append(_host_dhcp(data))
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return '\n'.join(hosts)
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@ -623,34 +605,28 @@ def _add_dnsmasq_accept_rules(dev):
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def get_dhcp_opts(context, network_ref):
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"""Get network's hosts config in dhcp-opts format."""
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hosts = []
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ips_ref = db.network_get_associated_fixed_ips(context, network_ref['id'])
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host = None
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if network_ref['multi_host']:
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host = FLAGS.host
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data = db.network_get_associated_fixed_ips(context,
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network_ref['id'],
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host=host)
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if ips_ref:
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if data:
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#set of instance ids
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instance_set = set([fixed_ip_ref['instance_id']
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for fixed_ip_ref in ips_ref])
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default_gw_network_node = {}
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instance_set = set([datum['instance_id'] for datum in data])
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default_gw_vif = {}
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for instance_id in instance_set:
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vifs = db.virtual_interface_get_by_instance(context, instance_id)
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if vifs:
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#offer a default gateway to the first virtual interface
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default_gw_network_node[instance_id] = vifs[0]['network_id']
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default_gw_vif[instance_id] = vifs[0]['id']
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for fixed_ip_ref in ips_ref:
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instance_id = fixed_ip_ref['instance_id']
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try:
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instance_ref = db.instance_get(context, instance_id)
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except exception.InstanceNotFound:
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msg = _("Instance %(instance_id)s not found")
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LOG.debug(msg % {'instance_id': instance_id})
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continue
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if instance_id in default_gw_network_node:
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target_network_id = default_gw_network_node[instance_id]
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for datum in data:
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if instance_id in default_gw_vif:
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# we don't want default gateway for this fixed ip
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if target_network_id != fixed_ip_ref['network_id']:
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hosts.append(_host_dhcp_opts(fixed_ip_ref,
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instance_ref))
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if default_gw_vif[instance_id] != datum['vif_id']:
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hosts.append(_host_dhcp_opts(datum))
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return '\n'.join(hosts)
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@ -689,6 +665,8 @@ def restart_dhcp(context, dev, network_ref):
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conffile = _dhcp_file(dev, 'conf')
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if FLAGS.use_single_default_gateway:
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# NOTE(vish): this will have serious performance implications if we
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# are not in multi_host mode.
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optsfile = _dhcp_file(dev, 'opts')
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write_to_file(optsfile, get_dhcp_opts(context, network_ref))
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os.chmod(optsfile, 0644)
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@ -782,45 +760,43 @@ interface %s
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_execute(*cmd, run_as_root=True)
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def _host_lease(fixed_ip_ref, vif_ref, instance_ref):
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def _host_lease(data):
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"""Return a host string for an address in leasefile format."""
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if instance_ref['updated_at']:
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timestamp = instance_ref['updated_at']
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if data['instance_updated']:
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timestamp = data['instance_updated']
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else:
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timestamp = instance_ref['created_at']
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timestamp = data['instance_created']
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seconds_since_epoch = calendar.timegm(timestamp.utctimetuple())
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return '%d %s %s %s *' % (seconds_since_epoch + FLAGS.dhcp_lease_time,
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vif_ref['address'],
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fixed_ip_ref['address'],
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instance_ref['hostname'] or '*')
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data['vif_address'],
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data['address'],
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data['instance_hostname'] or '*')
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def _host_dhcp_network(fixed_ip_ref, instance_ref):
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return 'NW-i%08d-%s' % (instance_ref['id'],
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fixed_ip_ref['network_id'])
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def _host_dhcp_network(data):
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return 'NW-%s' % data['vif_id']
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def _host_dhcp(fixed_ip_ref, vif_ref, instance_ref):
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def _host_dhcp(data):
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"""Return a host string for an address in dhcp-host format."""
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if FLAGS.use_single_default_gateway:
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return '%s,%s.%s,%s,%s' % (vif_ref['address'],
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instance_ref['hostname'],
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return '%s,%s.%s,%s,%s' % (data['vif_address'],
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data['instance_hostname'],
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FLAGS.dhcp_domain,
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fixed_ip_ref['address'],
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"net:" + _host_dhcp_network(fixed_ip_ref,
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instance_ref))
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data['address'],
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"net:" + _host_dhcp_network(data))
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else:
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return '%s,%s.%s,%s' % (vif_ref['address'],
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instance_ref['hostname'],
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return '%s,%s.%s,%s' % (data['vif_address'],
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data['instance_hostname'],
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FLAGS.dhcp_domain,
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fixed_ip_ref['address'])
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data['address'])
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def _host_dhcp_opts(fixed_ip_ref, instance_ref):
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"""Return a host string for an address in dhcp-host format."""
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return '%s,%s' % (_host_dhcp_network(fixed_ip_ref, instance_ref), 3)
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def _host_dhcp_opts(data):
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"""Return an empty gateway option."""
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return '%s,%s' % (_host_dhcp_network(data), 3)
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def _execute(*cmd, **kwargs):
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@ -281,6 +281,32 @@ class DbApiTestCase(test.TestCase):
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db.dnsdomain_unregister(ctxt, domain1)
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db.dnsdomain_unregister(ctxt, domain2)
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def test_network_get_associated_fixed_ips(self):
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ctxt = context.get_admin_context()
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values = {'host': 'foo', 'hostname': 'myname'}
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instance = db.instance_create(ctxt, values)
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values = {'address': 'bar', 'instance_id': instance['id']}
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vif = db.virtual_interface_create(ctxt, values)
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values = {'address': 'baz',
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'network_id': 1,
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'allocated': True,
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'instance_id': instance['id'],
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'virtual_interface_id': vif['id']}
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fixed_address = db.fixed_ip_create(ctxt, values)
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data = db.network_get_associated_fixed_ips(ctxt, 1)
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self.assertEqual(len(data), 1)
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record = data[0]
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self.assertEqual(record['address'], fixed_address)
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self.assertEqual(record['instance_id'], instance['id'])
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self.assertEqual(record['network_id'], 1)
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self.assertEqual(record['instance_created'], instance['created_at'])
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self.assertEqual(record['instance_updated'], instance['updated_at'])
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self.assertEqual(record['instance_hostname'], instance['hostname'])
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self.assertEqual(record['vif_id'], vif['id'])
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self.assertEqual(record['vif_address'], vif['address'])
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data = db.network_get_associated_fixed_ips(ctxt, 1, 'nothing')
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self.assertEqual(len(data), 0)
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def _get_fake_aggr_values():
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return {'name': 'fake_aggregate',
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@ -37,9 +37,13 @@ HOST = "testhost"
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instances = [{'id': 0,
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'host': 'fake_instance00',
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'created_at': 'fakedate',
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'updated_at': 'fakedate',
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'hostname': 'fake_instance00'},
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{'id': 1,
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'host': 'fake_instance01',
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'created_at': 'fakedate',
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'updated_at': 'fakedate',
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'hostname': 'fake_instance01'}]
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@ -77,7 +81,7 @@ networks = [{'id': 0,
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'uuid': "bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb",
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'label': 'test1',
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'injected': False,
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'multi_host': False,
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'multi_host': True,
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'cidr': '192.168.1.0/24',
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'cidr_v6': '2001:db9::/64',
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'gateway_v6': '2001:db9::1',
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@ -179,6 +183,29 @@ vifs = [{'id': 0,
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'instance_id': 1}]
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def get_associated(context, network_id, host=None):
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result = []
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for datum in fixed_ips:
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if (datum['network_id'] == network_id and datum['allocated']
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and datum['instance_id'] is not None
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and datum['virtual_interface_id'] is not None):
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instance = instances[datum['instance_id']]
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if host and host != instance['host']:
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continue
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cleaned = {}
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cleaned['address'] = datum['address']
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cleaned['instance_id'] = datum['instance_id']
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cleaned['network_id'] = datum['network_id']
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cleaned['vif_id'] = datum['virtual_interface_id']
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vif = vifs[datum['virtual_interface_id']]
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cleaned['vif_address'] = vif['address']
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cleaned['instance_hostname'] = instance['hostname']
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cleaned['instance_updated'] = instance['updated_at']
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cleaned['instance_created'] = instance['created_at']
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result.append(cleaned)
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return result
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class LinuxNetworkTestCase(test.TestCase):
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def setUp(self):
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@ -189,36 +216,23 @@ class LinuxNetworkTestCase(test.TestCase):
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self.context = context.RequestContext('testuser', 'testproject',
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is_admin=True)
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def test_update_dhcp_for_nw00(self):
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self.flags(use_single_default_gateway=True)
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def get_vif(_context, vif_id):
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return vifs[vif_id]
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def get_vifs(_context, instance_id):
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return [vif for vif in vifs if vif['instance_id'] == instance_id]
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def get_instance(_context, instance_id):
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return instances[instance_id]
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self.stubs.Set(db, 'virtual_interface_get', get_vif)
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self.stubs.Set(db, 'virtual_interface_get_by_instance', get_vifs)
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self.stubs.Set(db, 'instance_get', get_instance)
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self.mox.StubOutWithMock(db, 'network_get_associated_fixed_ips')
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self.mox.StubOutWithMock(db, 'virtual_interface_get_by_instance')
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self.stubs.Set(db, 'network_get_associated_fixed_ips', get_associated)
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def test_update_dhcp_for_nw00(self):
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self.flags(use_single_default_gateway=True)
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self.mox.StubOutWithMock(self.driver, 'write_to_file')
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self.mox.StubOutWithMock(self.driver, 'ensure_path')
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self.mox.StubOutWithMock(os, 'chmod')
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db.network_get_associated_fixed_ips(
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mox.IgnoreArg(),
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mox.IgnoreArg()).AndReturn([fixed_ips[0], fixed_ips[3]])
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db.network_get_associated_fixed_ips(
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mox.IgnoreArg(),
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mox.IgnoreArg()).AndReturn([fixed_ips[0], fixed_ips[3]])
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db.virtual_interface_get_by_instance(
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mox.IgnoreArg(),
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mox.IgnoreArg()).AndReturn([vifs[0], vifs[1]])
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db.virtual_interface_get_by_instance(
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mox.IgnoreArg(),
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mox.IgnoreArg()).AndReturn([vifs[2], vifs[3]])
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self.driver.write_to_file(mox.IgnoreArg(), mox.IgnoreArg())
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self.driver.write_to_file(mox.IgnoreArg(), mox.IgnoreArg())
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self.driver.ensure_path(mox.IgnoreArg())
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@ -238,33 +252,10 @@ class LinuxNetworkTestCase(test.TestCase):
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def test_update_dhcp_for_nw01(self):
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self.flags(use_single_default_gateway=True)
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def get_vif(_context, vif_id):
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return vifs[vif_id]
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def get_instance(_context, instance_id):
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return instances[instance_id]
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self.stubs.Set(db, 'virtual_interface_get', get_vif)
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self.stubs.Set(db, 'instance_get', get_instance)
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self.mox.StubOutWithMock(db, 'network_get_associated_fixed_ips')
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self.mox.StubOutWithMock(db, 'virtual_interface_get_by_instance')
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self.mox.StubOutWithMock(self.driver, 'write_to_file')
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self.mox.StubOutWithMock(self.driver, 'ensure_path')
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self.mox.StubOutWithMock(os, 'chmod')
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db.network_get_associated_fixed_ips(
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mox.IgnoreArg(),
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mox.IgnoreArg()).AndReturn([fixed_ips[1], fixed_ips[2]])
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db.network_get_associated_fixed_ips(
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mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([fixed_ips[1], fixed_ips[2]])
|
||||
db.virtual_interface_get_by_instance(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([vifs[0], vifs[1]])
|
||||
db.virtual_interface_get_by_instance(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([vifs[2], vifs[3]])
|
||||
self.driver.write_to_file(mox.IgnoreArg(), mox.IgnoreArg())
|
||||
self.driver.write_to_file(mox.IgnoreArg(), mox.IgnoreArg())
|
||||
self.driver.ensure_path(mox.IgnoreArg())
|
||||
@ -284,116 +275,57 @@ class LinuxNetworkTestCase(test.TestCase):
|
||||
def test_get_dhcp_hosts_for_nw00(self):
|
||||
self.flags(use_single_default_gateway=True)
|
||||
|
||||
def get_vif(_context, vif_id):
|
||||
return vifs[vif_id]
|
||||
|
||||
def get_instance(_context, instance_id):
|
||||
return instances[instance_id]
|
||||
|
||||
self.stubs.Set(db, 'virtual_interface_get', get_vif)
|
||||
self.stubs.Set(db, 'instance_get', get_instance)
|
||||
self.mox.StubOutWithMock(db, 'network_get_associated_fixed_ips')
|
||||
|
||||
db.network_get_associated_fixed_ips(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([fixed_ips[0], fixed_ips[3]])
|
||||
self.mox.ReplayAll()
|
||||
|
||||
expected = ("DE:AD:BE:EF:00:00,fake_instance00.novalocal,"
|
||||
"192.168.0.100,net:NW-i00000000-0\n"
|
||||
"DE:AD:BE:EF:00:03,fake_instance01.novalocal,"
|
||||
"192.168.1.101,net:NW-i00000001-0")
|
||||
actual_hosts = self.driver.get_dhcp_hosts(self.context, networks[1])
|
||||
expected = (
|
||||
"DE:AD:BE:EF:00:00,fake_instance00.novalocal,"
|
||||
"192.168.0.100,net:NW-0\n"
|
||||
"DE:AD:BE:EF:00:03,fake_instance01.novalocal,"
|
||||
"192.168.1.101,net:NW-3\n"
|
||||
"DE:AD:BE:EF:00:04,fake_instance00.novalocal,"
|
||||
"192.168.0.102,net:NW-4"
|
||||
)
|
||||
actual_hosts = self.driver.get_dhcp_hosts(self.context, networks[0])
|
||||
|
||||
self.assertEquals(actual_hosts, expected)
|
||||
|
||||
def test_get_dhcp_hosts_for_nw01(self):
|
||||
self.flags(use_single_default_gateway=True)
|
||||
self.flags(host='fake_instance01')
|
||||
|
||||
def get_vif(_context, vif_id):
|
||||
return vifs[vif_id]
|
||||
|
||||
def get_instance(_context, instance_id):
|
||||
return instances[instance_id]
|
||||
|
||||
self.stubs.Set(db, 'virtual_interface_get', get_vif)
|
||||
self.stubs.Set(db, 'instance_get', get_instance)
|
||||
self.mox.StubOutWithMock(db, 'network_get_associated_fixed_ips')
|
||||
|
||||
db.network_get_associated_fixed_ips(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([fixed_ips[1], fixed_ips[2]])
|
||||
self.mox.ReplayAll()
|
||||
|
||||
expected = ("DE:AD:BE:EF:00:01,fake_instance00.novalocal,"
|
||||
"192.168.1.100,net:NW-i00000000-1\n"
|
||||
"DE:AD:BE:EF:00:02,fake_instance01.novalocal,"
|
||||
"192.168.0.101,net:NW-i00000001-1")
|
||||
actual_hosts = self.driver.get_dhcp_hosts(self.context, networks[0])
|
||||
expected = (
|
||||
"DE:AD:BE:EF:00:02,fake_instance01.novalocal,"
|
||||
"192.168.0.101,net:NW-2\n"
|
||||
"DE:AD:BE:EF:00:05,fake_instance01.novalocal,"
|
||||
"192.168.1.102,net:NW-5"
|
||||
)
|
||||
actual_hosts = self.driver.get_dhcp_hosts(self.context, networks[1])
|
||||
|
||||
self.assertEquals(actual_hosts, expected)
|
||||
|
||||
def test_get_dhcp_opts_for_nw00(self):
|
||||
def get_instance(_context, instance_id):
|
||||
return instances[instance_id]
|
||||
|
||||
self.stubs.Set(db, 'instance_get', get_instance)
|
||||
self.mox.StubOutWithMock(db, 'network_get_associated_fixed_ips')
|
||||
self.mox.StubOutWithMock(db, 'virtual_interface_get_by_instance')
|
||||
|
||||
db.network_get_associated_fixed_ips(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([fixed_ips[0], fixed_ips[3],
|
||||
fixed_ips[4]])
|
||||
db.virtual_interface_get_by_instance(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([vifs[0], vifs[1], vifs[4]])
|
||||
db.virtual_interface_get_by_instance(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([vifs[2], vifs[3], vifs[5]])
|
||||
self.mox.ReplayAll()
|
||||
|
||||
expected_opts = 'NW-i00000001-0,3'
|
||||
expected_opts = 'NW-0,3\nNW-3,3\nNW-4,3'
|
||||
actual_opts = self.driver.get_dhcp_opts(self.context, networks[0])
|
||||
|
||||
self.assertEquals(actual_opts, expected_opts)
|
||||
|
||||
def test_get_dhcp_opts_for_nw01(self):
|
||||
def get_instance(_context, instance_id):
|
||||
print instance_id
|
||||
return instances[instance_id]
|
||||
|
||||
self.stubs.Set(db, 'instance_get', get_instance)
|
||||
self.mox.StubOutWithMock(db, 'network_get_associated_fixed_ips')
|
||||
self.mox.StubOutWithMock(db, 'virtual_interface_get_by_instance')
|
||||
|
||||
db.network_get_associated_fixed_ips(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([fixed_ips[1], fixed_ips[2],
|
||||
fixed_ips[5]])
|
||||
db.virtual_interface_get_by_instance(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([vifs[0], vifs[1], vifs[4]])
|
||||
db.virtual_interface_get_by_instance(
|
||||
mox.IgnoreArg(),
|
||||
mox.IgnoreArg()).AndReturn([vifs[2], vifs[3], vifs[5]])
|
||||
self.mox.ReplayAll()
|
||||
|
||||
expected_opts = "NW-i00000000-1,3"
|
||||
self.flags(host='fake_instance01')
|
||||
expected_opts = "NW-5,3"
|
||||
actual_opts = self.driver.get_dhcp_opts(self.context, networks[1])
|
||||
|
||||
self.assertEquals(actual_opts, expected_opts)
|
||||
|
||||
def test_dhcp_opts_not_default_gateway_network(self):
|
||||
expected = "NW-i00000000-0,3"
|
||||
actual = self.driver._host_dhcp_opts(fixed_ips[0], instances[0])
|
||||
expected = "NW-0,3"
|
||||
data = get_associated(self.context, 0)[0]
|
||||
actual = self.driver._host_dhcp_opts(data)
|
||||
self.assertEquals(actual, expected)
|
||||
|
||||
def test_host_dhcp_without_default_gateway_network(self):
|
||||
expected = ','.join(['DE:AD:BE:EF:00:00',
|
||||
'fake_instance00.novalocal',
|
||||
'192.168.0.100'])
|
||||
actual = self.driver._host_dhcp(fixed_ips[0], vifs[0], instances[0])
|
||||
data = get_associated(self.context, 0)[0]
|
||||
actual = self.driver._host_dhcp(data)
|
||||
self.assertEquals(actual, expected)
|
||||
|
||||
def test_linux_bridge_driver_plug(self):
|
||||
|
||||
Loading…
Reference in New Issue
Block a user