""" Logical model
"""
+from __future__ import absolute_import
+from six.moves import range
class Object(object):
- '''Base class for classes in the logical model
+ """Base class for classes in the logical model
Contains common attributes and methods
- '''
+ """
+
def __init__(self, name, context):
# model identities and reference
self.name = name
@property
def dn(self):
- '''returns distinguished name for object'''
+ """returns distinguished name for object"""
return self.name + "." + self._context.name
class PlacementGroup(Object):
- '''Class that represents a placement group in the logical model
+ """Class that represents a placement group in the logical model
Concept comes from the OVF specification. Policy should be one of
"availability" or "affinity (there are more but they are not supported)"
- '''
+ """
map = {}
def __init__(self, name, context, policy):
@staticmethod
def get(name):
- if name in PlacementGroup.map:
- return PlacementGroup.map[name]
- else:
- return None
+ return PlacementGroup.map.get(name)
+
+
+class ServerGroup(Object): # pragma: no cover
+ """Class that represents a server group in the logical model
+ Policy should be one of "anti-affinity" or "affinity"
+ """
+ map = {}
+
+ def __init__(self, name, context, policy):
+ super(ServerGroup, self).__init__(name, context)
+ if policy not in {"affinity", "anti-affinity"}:
+ raise ValueError("server group '%s', policy '%s' is not valid" %
+ (name, policy))
+ self.name = name
+ self.members = set()
+ self.stack_name = context.name + "-" + name
+ self.policy = policy
+ ServerGroup.map[name] = self
+
+ def add_member(self, name):
+ self.members.add(name)
+
+ @staticmethod
+ def get(name):
+ return ServerGroup.map.get(name)
class Router(Object):
- '''Class that represents a router in the logical model'''
+ """Class that represents a router in the logical model"""
+
def __init__(self, name, network_name, context, external_gateway_info):
- super(self.__class__, self).__init__(name, context)
+ super(Router, self).__init__(name, context)
self.stack_name = context.name + "-" + network_name + "-" + self.name
self.stack_if_name = self.stack_name + "-if0"
class Network(Object):
- '''Class that represents a network in the logical model'''
+ """Class that represents a network in the logical model"""
list = []
def __init__(self, name, context, attrs):
- super(self.__class__, self).__init__(name, context)
+ super(Network, self).__init__(name, context)
self.stack_name = context.name + "-" + self.name
self.subnet_stack_name = self.stack_name + "-subnet"
self.subnet_cidr = attrs.get('cidr', '10.0.1.0/24')
self.router = None
+ self.physical_network = attrs.get('physical_network', 'physnet1')
+ self.provider = attrs.get('provider', None)
if "external_network" in attrs:
self.router = Router("router", self.name,
Network.list.append(self)
def has_route_to(self, network_name):
- '''determines if this network has a route to the named network'''
+ """determines if this network has a route to the named network"""
if self.router and self.router.external_gateway_info == network_name:
return True
return False
@staticmethod
def find_by_route_to(external_network):
- '''finds a network that has a route to the specified network'''
+ """finds a network that has a route to the specified network"""
for network in Network.list:
if network.has_route_to(external_network):
return network
@staticmethod
def find_external_network():
- '''return the name of an external network some network in this
- context has a route to'''
+ """return the name of an external network some network in this
+ context has a route to"""
for network in Network.list:
if network.router:
return network.router.external_gateway_info
return None
-class Server(Object):
- '''Class that represents a server in the logical model'''
+class Server(Object): # pragma: no cover
+ """Class that represents a server in the logical model"""
list = []
def __init__(self, name, context, attrs):
- super(self.__class__, self).__init__(name, context)
+ super(Server, self).__init__(name, context)
self.stack_name = self.name + "." + context.name
self.keypair_name = context.keypair_name
self.secgroup_name = context.secgroup_name
self.placement_groups = []
placement = attrs.get("placement", [])
- placement = placement if type(placement) is list else [placement]
+ placement = placement if isinstance(placement, list) else [placement]
for p in placement:
pg = PlacementGroup.get(p)
if not pg:
self.placement_groups.append(pg)
pg.add_member(self.stack_name)
+ # support servergroup attr
+ self.server_group = None
+ sg = attrs.get("server_group")
+ if sg:
+ server_group = ServerGroup.get(sg)
+ if not server_group:
+ raise ValueError("server '%s', server_group '%s' is invalid" %
+ (name, sg))
+ self.server_group = server_group
+ server_group.add_member(self.stack_name)
+
self.instances = 1
if "instances" in attrs:
self.instances = attrs["instances"]
@property
def image(self):
- '''returns a server's image name'''
+ """returns a server's image name"""
if self._image:
return self._image
else:
@property
def flavor(self):
- '''returns a server's flavor name'''
+ """returns a server's flavor name"""
if self._flavor:
return self._flavor
else:
return self._context.flavor
def _add_instance(self, template, server_name, networks, scheduler_hints):
- '''adds to the template one server and corresponding resources'''
+ """adds to the template one server and corresponding resources"""
port_name_list = []
for network in networks:
port_name = server_name + "-" + network.name + "-port"
self.ports[network.name] = {"stack_name": port_name}
template.add_port(port_name, network.stack_name,
network.subnet_stack_name,
- sec_group_id=self.secgroup_name)
+ sec_group_id=self.secgroup_name,
+ provider=network.provider)
port_name_list.append(port_name)
if self.floating_ip:
scheduler_hints=scheduler_hints)
def add_to_template(self, template, networks, scheduler_hints=None):
- '''adds to the template one or more servers (instances)'''
+ """adds to the template one or more servers (instances)"""
if self.instances == 1:
server_name = self.stack_name
self._add_instance(template, server_name, networks,
def update_scheduler_hints(scheduler_hints, added_servers, placement_group):
- ''' update scheduler hints from server's placement configuration
+ """ update scheduler hints from server's placement configuration
TODO: this code is openstack specific and should move somewhere else
- '''
+ """
if placement_group.policy == "affinity":
if "same_host" in scheduler_hints:
host_list = scheduler_hints["same_host"]
Code Review / yardstick.git / blobdiff