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Diffstat (limited to 'yardstick/benchmark/context/model.py')
| -rw-r--r-- | yardstick/benchmark/context/model.py | 469 |
1 files changed, 0 insertions, 469 deletions
diff --git a/yardstick/benchmark/context/model.py b/yardstick/benchmark/context/model.py deleted file mode 100644 index 6e754d421..000000000 --- a/yardstick/benchmark/context/model.py +++ /dev/null @@ -1,469 +0,0 @@ -############################################################################## -# Copyright (c) 2015 Ericsson AB and others. -# -# All rights reserved. This program and the accompanying materials -# are made available under the terms of the Apache License, Version 2.0 -# which accompanies this distribution, and is available at -# http://www.apache.org/licenses/LICENSE-2.0 -############################################################################## - -""" Logical model - -""" - -import sys - -from yardstick.orchestrator.heat import HeatTemplate - - -class Object(object): - '''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 - self._context = context - - # stack identities - self.stack_name = None - self.stack_id = None - - @property - def dn(self): - '''returns distinguished name for object''' - return self.name + "." + self._context.name - - -class PlacementGroup(Object): - '''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): - if policy not in ["affinity", "availability"]: - raise ValueError("placement group '%s', policy '%s' is not valid" % - (name, policy)) - self.name = name - self.members = set() - self.stack_name = context.name + "-" + name - self.policy = policy - PlacementGroup.map[name] = self - - def add_member(self, name): - self.members.add(name) - - @staticmethod - def get(name): - if name in PlacementGroup.map: - return PlacementGroup.map[name] - else: - return None - - -class Router(Object): - '''Class that represents a router in the logical model''' - def __init__(self, name, network_name, context, external_gateway_info): - super(Router, self).__init__(name, context) - - self.stack_name = context.name + "-" + network_name + "-" + self.name - self.stack_if_name = self.stack_name + "-if0" - self.external_gateway_info = external_gateway_info - - -class Network(Object): - '''Class that represents a network in the logical model''' - list = [] - - def __init__(self, name, context, attrs): - 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 - - if "external_network" in attrs: - self.router = Router("router", self.name, - context, attrs["external_network"]) - - Network.list.append(self) - - def has_route_to(self, network_name): - '''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''' - 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''' - 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''' - list = [] - - def __init__(self, name, context, attrs): - 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.context = context - self.public_ip = None - self.private_ip = None - - if attrs is None: - attrs = {} - - self.placement_groups = [] - placement = attrs.get("placement", []) - placement = placement if type(placement) is list else [placement] - for p in placement: - pg = PlacementGroup.get(p) - if not pg: - raise ValueError("server '%s', placement '%s' is invalid" % - (name, p)) - self.placement_groups.append(pg) - pg.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.ports = {} - - self.floating_ip = None - if "floating_ip" in attrs: - self.floating_ip = {} - - if self.floating_ip is not None: - ext_net = Network.find_external_network() - assert ext_net is not None - self.floating_ip["external_network"] = ext_net - - self._image = None - if "image" in attrs: - self._image = attrs["image"] - - self._flavor = None - if "flavor" in attrs: - self._flavor = attrs["flavor"] - - Server.list.append(self) - - @property - def image(self): - '''returns a server's image name''' - if self._image: - return self._image - else: - return self._context.image - - @property - def flavor(self): - '''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''' - 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) - - template.add_server(server_name, self.image, self.flavor, - ports=port_name_list, - key_name=self.keypair_name, - scheduler_hints=scheduler_hints) - - def add_to_template(self, template, networks, scheduler_hints=None): - '''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, - scheduler_hints=scheduler_hints) - else: - # TODO(hafe) fix or remove, no test/sample for this - for i in range(self.instances): - server_name = "%s-%d" % (self.stack_name, i) - self._add_instance(template, server_name, networks, - scheduler_hints=scheduler_hints) - - -def update_scheduler_hints(scheduler_hints, added_servers, placement_group): - ''' 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"] - else: - host_list = scheduler_hints["same_host"] = [] - else: - if "different_host" in scheduler_hints: - host_list = scheduler_hints["different_host"] - else: - host_list = scheduler_hints["different_host"] = [] - - for name in added_servers: - if name in placement_group.members: - host_list.append({'get_resource': name}) - - -class Context(object): - '''Class that represents a context in the logical model''' - list = [] - - def __init__(self): - self.name = None - self.stack = None - self.networks = [] - self.servers = [] - self.placement_groups = [] - self.keypair_name = None - self.secgroup_name = None - self._server_map = {} - self._image = None - self._flavor = None - self._user = None - self.template_file = None - self.heat_parameters = None - Context.list.append(self) - - def init(self, attrs): - '''initializes itself from the supplied arguments''' - self.name = attrs["name"] - - if "user" in attrs: - self._user = attrs["user"] - - if "heat_template" in attrs: - self.template_file = attrs["heat_template"] - self.heat_parameters = attrs.get("heat_parameters", None) - return - - self.keypair_name = self.name + "-key" - self.secgroup_name = self.name + "-secgroup" - - if "image" in attrs: - self._image = attrs["image"] - - if "flavor" in attrs: - self._flavor = attrs["flavor"] - - if "placement_groups" in attrs: - for name, pgattrs in attrs["placement_groups"].items(): - pg = PlacementGroup(name, self, pgattrs["policy"]) - self.placement_groups.append(pg) - - for name, netattrs in attrs["networks"].items(): - network = Network(name, self, netattrs) - self.networks.append(network) - - for name, serverattrs in attrs["servers"].items(): - server = Server(name, self, serverattrs) - self.servers.append(server) - self._server_map[server.dn] = server - - @property - def image(self): - '''returns application's default image name''' - return self._image - - @property - def flavor(self): - '''returns application's default flavor name''' - return self._flavor - - @property - def user(self): - '''return login user name corresponding to image''' - return self._user - - def _add_resources_to_template(self, template): - '''add to the template the resources represented by this context''' - template.add_keypair(self.keypair_name) - template.add_security_group(self.secgroup_name) - - for network in self.networks: - template.add_network(network.stack_name) - template.add_subnet(network.subnet_stack_name, network.stack_name, - network.subnet_cidr) - - if network.router: - template.add_router(network.router.stack_name, - network.router.external_gateway_info, - network.subnet_stack_name) - template.add_router_interface(network.router.stack_if_name, - network.router.stack_name, - network.subnet_stack_name) - - # create a list of servers sorted by increasing no of placement groups - list_of_servers = sorted(self.servers, - key=lambda s: len(s.placement_groups)) - - # - # add servers with scheduler hints derived from placement groups - # - - # create list of servers with availability policy - availability_servers = [] - for server in list_of_servers: - for pg in server.placement_groups: - if pg.policy == "availability": - availability_servers.append(server) - break - - # add servers with availability policy - added_servers = [] - for server in availability_servers: - scheduler_hints = {} - for pg in server.placement_groups: - update_scheduler_hints(scheduler_hints, added_servers, pg) - server.add_to_template(template, self.networks, scheduler_hints) - added_servers.append(server.stack_name) - - # create list of servers with affinity policy - affinity_servers = [] - for server in list_of_servers: - for pg in server.placement_groups: - if pg.policy == "affinity": - affinity_servers.append(server) - break - - # add servers with affinity policy - for server in affinity_servers: - if server.stack_name in added_servers: - continue - scheduler_hints = {} - for pg in server.placement_groups: - update_scheduler_hints(scheduler_hints, added_servers, pg) - server.add_to_template(template, self.networks, scheduler_hints) - added_servers.append(server.stack_name) - - # add remaining servers with no placement group configured - for server in list_of_servers: - if len(server.placement_groups) == 0: - server.add_to_template(template, self.networks, {}) - - def deploy(self): - '''deploys template into a stack using cloud''' - print "Deploying context '%s'" % self.name - - heat_template = HeatTemplate(self.name, self.template_file, - self.heat_parameters) - - if self.template_file is None: - self._add_resources_to_template(heat_template) - - try: - self.stack = heat_template.create() - except KeyboardInterrupt: - sys.exit("\nStack create interrupted") - except RuntimeError as err: - sys.exit("error: failed to deploy stack: '%s'" % err.args) - except Exception as err: - sys.exit("error: failed to deploy stack: '%s'" % err) - - # copy some vital stack output into server objects - for server in self.servers: - if len(server.ports) > 0: - # TODO(hafe) can only handle one internal network for now - port = server.ports.values()[0] - server.private_ip = self.stack.outputs[port["stack_name"]] - - if server.floating_ip: - server.public_ip = \ - self.stack.outputs[server.floating_ip["stack_name"]] - - print "Context '%s' deployed" % self.name - - def undeploy(self): - '''undeploys stack from cloud''' - if self.stack: - print "Undeploying context '%s'" % self.name - self.stack.delete() - self.stack = None - print "Context '%s' undeployed" % self.name - - @staticmethod - def get_server_by_name(dn): - '''lookup server object by DN - - dn is a distinguished name including the context name''' - if "." not in dn: - raise ValueError("dn '%s' is malformed" % dn) - - for context in Context.list: - if dn in context._server_map: - return context._server_map[dn] - - return None - - @staticmethod - def get_context_by_name(name): - for context in Context.list: - if name == context.name: - return context - return None - - @staticmethod - def get_server(attr_name): - '''lookup server object by name from context - attr_name: either a name for a server created by yardstick or a dict - with attribute name mapping when using external heat templates - ''' - if type(attr_name) is dict: - cname = attr_name["name"].split(".")[1] - context = Context.get_context_by_name(cname) - if context is None: - raise ValueError("context not found for server '%s'" % - attr_name["name"]) - - public_ip = None - private_ip = None - if "public_ip_attr" in attr_name: - public_ip = context.stack.outputs[attr_name["public_ip_attr"]] - if "private_ip_attr" in attr_name: - private_ip = context.stack.outputs[ - attr_name["private_ip_attr"]] - - # Create a dummy server instance for holding the *_ip attributes - server = Server(attr_name["name"].split(".")[0], context, {}) - server.public_ip = public_ip - server.private_ip = private_ip - return server - else: - return Context.get_server_by_name(attr_name) |