"""
from __future__ import absolute_import
+
+import six
+import logging
from six.moves import range
+LOG = logging.getLogger(__name__)
+
+
class Object(object):
"""Base class for classes in the logical model
Contains common attributes and methods
@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):
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.enable_dhcp = attrs.get('enable_dhcp', 'true')
self.router = None
+ self.physical_network = attrs.get('physical_network', 'physnet1')
+ self.provider = attrs.get('provider')
+ self.segmentation_id = attrs.get('segmentation_id')
+ self.network_type = attrs.get('network_type')
+ self.port_security_enabled = attrs.get('port_security_enabled')
+ self.vnic_type = attrs.get('vnic_type', 'normal')
+ self.allowed_address_pairs = attrs.get('allowed_address_pairs', [])
+ try:
+ # we require 'null' or '' to disable setting gateway_ip
+ self.gateway_ip = attrs['gateway_ip']
+ except KeyError:
+ # default to explicit None
+ self.gateway_ip = None
+ else:
+ # null is None in YAML, so we have to convert back to string
+ if self.gateway_ip is None:
+ self.gateway_ip = "null"
if "external_network" in attrs:
self.router = Router("router", self.name,
@staticmethod
def find_external_network():
"""return the name of an external network some network in this
- context has a route to"""
+ 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 Server(Object): # pragma: no cover
"""Class that represents a server in the logical model"""
list = []
self.context = context
self.public_ip = None
self.private_ip = None
+ self.user_data = ''
+ self.interfaces = {}
if attrs is None:
attrs = {}
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)
+ self.volume = None
+ if "volume" in attrs:
+ self.volume = attrs.get("volume")
+
+ self.volume_mountpoint = None
+ if "volume_mountpoint" in attrs:
+ self.volume_mountpoint = attrs.get("volume_mountpoint")
+
+ # 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"]
# dict with key network name, each item is a dict with port name and ip
+ self.network_ports = attrs.get("network_ports", {})
self.ports = {}
self.floating_ip = None
if "flavor" in attrs:
self._flavor = attrs["flavor"]
+ self.user_data = attrs.get('user_data', '')
+
Server.list.append(self)
@property
"""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)
- port_name_list.append(port_name)
-
- if self.floating_ip:
- external_network = self.floating_ip["external_network"]
- if network.has_route_to(external_network):
- self.floating_ip["stack_name"] = server_name + "-fip"
- template.add_floating_ip(self.floating_ip["stack_name"],
- external_network,
- port_name,
- network.router.stack_if_name,
- self.secgroup_name)
- self.floating_ip_assoc["stack_name"] = \
- server_name + "-fip-assoc"
- template.add_floating_ip_association(
- self.floating_ip_assoc["stack_name"],
- self.floating_ip["stack_name"],
- port_name)
-
- template.add_server(server_name, self.image, self.flavor,
+ # if explicit mapping skip unused networks
+ if self.network_ports:
+ try:
+ ports = self.network_ports[network.name]
+ except KeyError:
+ # no port for this network
+ continue
+ else:
+ if isinstance(ports, six.string_types):
+ if ports.startswith('-'):
+ LOG.warning("possible YAML error, port name starts with - '%s", ports)
+ ports = [ports]
+ # otherwise add a port for every network with port name as network name
+ else:
+ ports = [network.name]
+ for port in ports:
+ port_name = "{0}-{1}-port".format(server_name, port)
+ self.ports.setdefault(network.name, []).append(
+ {"stack_name": port_name, "port": port})
+ # we can't use secgroups if port_security_enabled is False
+ if network.port_security_enabled is False:
+ sec_group_id = None
+ else:
+ # if port_security_enabled is None we still need to add to secgroup
+ sec_group_id = self.secgroup_name
+ # don't refactor to pass in network object, that causes JSON
+ # circular ref encode errors
+ template.add_port(port_name, network.stack_name, network.subnet_stack_name,
+ network.vnic_type, sec_group_id=sec_group_id,
+ provider=network.provider,
+ allowed_address_pairs=network.allowed_address_pairs)
+ port_name_list.append(port_name)
+
+ if self.floating_ip:
+ external_network = self.floating_ip["external_network"]
+ if network.has_route_to(external_network):
+ self.floating_ip["stack_name"] = server_name + "-fip"
+ template.add_floating_ip(self.floating_ip["stack_name"],
+ external_network,
+ port_name,
+ network.router.stack_if_name,
+ sec_group_id)
+ self.floating_ip_assoc["stack_name"] = \
+ server_name + "-fip-assoc"
+ template.add_floating_ip_association(
+ self.floating_ip_assoc["stack_name"],
+ self.floating_ip["stack_name"],
+ port_name)
+ if self.flavor:
+ if isinstance(self.flavor, dict):
+ self.flavor["name"] = \
+ self.flavor.setdefault("name", self.stack_name + "-flavor")
+ template.add_flavor(**self.flavor)
+ self.flavor_name = self.flavor["name"]
+ else:
+ self.flavor_name = self.flavor
+
+ if self.volume:
+ if isinstance(self.volume, dict):
+ self.volume["name"] = \
+ self.volume.setdefault("name", server_name + "-volume")
+ template.add_volume(**self.volume)
+ template.add_volume_attachment(server_name, self.volume["name"],
+ mountpoint=self.volume_mountpoint)
+ else:
+ template.add_volume_attachment(server_name, self.volume,
+ mountpoint=self.volume_mountpoint)
+
+ template.add_server(server_name, self.image, flavor=self.flavor_name,
+ flavors=self.context.flavors,
ports=port_name_list,
user=self.user,
key_name=self.keypair_name,
+ user_data=self.user_data,
scheduler_hints=scheduler_hints)
def add_to_template(self, template, networks, scheduler_hints=None):
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":