############################################################################## # Copyright 2018 EuropeanSoftwareMarketingLtd. # =================================================================== # Licensed under the ApacheLicense, Version2.0 (the"License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # # software distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and limitations under # the License ############################################################################## # vnftest comment: this is a modified copy of # yardstick/benchmark/contexts/heat.py import collections import logging import os import errno from collections import OrderedDict import ipaddress import pkg_resources from vnftest.contexts.base import Context from vnftest.contexts.model import Network from vnftest.contexts.model import PlacementGroup, ServerGroup from vnftest.contexts.model import Server from vnftest.contexts.model import update_scheduler_hints from vnftest.common import exceptions as y_exc from vnftest.common.openstack_utils import get_shade_client from vnftest.orchestrator.heat import HeatStack from vnftest.orchestrator.heat import HeatTemplate from vnftest.common import constants as consts from vnftest.common import utils from vnftest.common.utils import source_env from vnftest.common import openstack_utils LOG = logging.getLogger(__name__) DEFAULT_HEAT_TIMEOUT = 3600 def join_args(sep, *args): return sep.join(args) def h_join(*args): return '-'.join(args) class HeatContext(Context): """Class that represents a context in the logical model""" __context_type__ = "Heat" def __init__(self): self.stack = None self.networks = OrderedDict() self.heat_timeout = None self.servers = {} self.placement_groups = [] self.server_groups = [] self.keypair_name = None self.secgroup_name = None self.security_group = None self.attrs = {} self._image = None self._flavor = None self.flavors = set() self._user = None self.template_file = None self.heat_parameters = None self.heat_timeout = None self.key_filename = None self._shade_client = None self._operator_client = None self.nodes = [] self.controllers = [] self.computes = [] self.baremetals = [] super(HeatContext, self).__init__() @staticmethod def assign_external_network(networks): if networks: sorted_networks = sorted(networks.items()) external_network = os.environ.get("EXTERNAL_NETWORK", "net04_ext") have_external_network = any(net.get("external_network") for net in networks.values()) if not have_external_network: # try looking for mgmt network first try: networks['mgmt']["external_network"] = external_network except KeyError: if sorted_networks: # otherwise assign it to first network using os.environ sorted_networks[0][1]["external_network"] = external_network return sorted_networks return networks def init(self, attrs): """Initializes itself from the supplied arguments""" super(HeatContext, self).init(attrs) self.check_environment() self._user = attrs.get("user") self.template_file = attrs.get("heat_template") self._shade_client = openstack_utils.get_shade_client() self._operator_client = openstack_utils.get_shade_operator_client() self.heat_timeout = attrs.get("timeout", DEFAULT_HEAT_TIMEOUT) if self.template_file: self.heat_parameters = attrs.get("heat_parameters") return self.keypair_name = None # h_join(self.name, "key") self.secgroup_name = None # h_join(self.name, "secgroup") self.security_group = attrs.get("security_group") self._image = attrs.get("image") self._flavor = attrs.get("flavor") self.placement_groups = [PlacementGroup(name, self, pg_attrs["policy"]) for name, pg_attrs in attrs.get( "placement_groups", {}).items()] self.server_groups = [ServerGroup(name, self, sg_attrs["policy"]) for name, sg_attrs in attrs.get( "server_groups", {}).items()] # we have to do this first, because we are injecting external_network # into the dict networks = attrs.get("networks", {}) sorted_networks = self.assign_external_network(networks) if sorted_networks: self.networks = OrderedDict( (name, Network(name, self, net_attrs)) for name, net_attrs in sorted_networks) for name, server_attrs in sorted(attrs["servers"].items()): server = Server(name, self, server_attrs) self.servers[name] = server self.attrs = attrs def check_environment(self): try: os.environ['OS_AUTH_URL'] except KeyError: try: source_env(consts.OPENRC) except IOError as e: if e.errno != errno.EEXIST: LOG.error('OPENRC file not found') raise else: LOG.error('OS_AUTH_URL not found') @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""" if self.flavor: if isinstance(self.flavor, dict): flavor = self.flavor.setdefault("name", self.name + "-flavor") template.add_flavor(**self.flavor) self.flavors.add(flavor) # template.add_keypair(self.keypair_name, self.name) # template.add_security_group(self.secgroup_name, self.security_group) for network in self.networks.values(): # Using existing network if network.is_existing(): continue template.add_network(network.stack_name, network.physical_network, network.provider, network.segmentation_id, network.port_security_enabled, network.network_type) template.add_subnet(network.subnet_stack_name, network.stack_name, network.subnet_cidr, network.enable_dhcp, network.gateway_ip) 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.itervalues(), 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 for server in availability_servers: if isinstance(server.flavor, dict): try: self.flavors.add(server.flavor["name"]) except KeyError: self.flavors.add(h_join(server.stack_name, "flavor")) # 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) # workaround for openstack nova bug, check JIRA: vnftest-200 # for details if len(availability_servers) == 2: if not scheduler_hints["different_host"]: scheduler_hints.pop("different_host", None) server.add_to_template(template, list(self.networks.values()), scheduler_hints) else: scheduler_hints["different_host"] = \ scheduler_hints["different_host"][0] server.add_to_template(template, list(self.networks.values()), scheduler_hints) else: server.add_to_template(template, list(self.networks.values()), 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, list(self.networks.values()), scheduler_hints) added_servers.append(server.stack_name) # add server group for sg in self.server_groups: template.add_server_group(sg.name, sg.policy) # add remaining servers with no placement group configured for server in list_of_servers: # TODO placement_group and server_group should combine if not server.placement_groups: scheduler_hints = {} # affinity/anti-aff server group sg = server.server_group if sg: scheduler_hints["group"] = {'get_resource': sg.name} server.add_to_template(template, list(self.networks.values()), scheduler_hints) def get_neutron_info(self): if not self._shade_client: self._shade_client = get_shade_client() networks = self._shade_client.list_networks() for network in self.networks.values(): for neutron_net in (net for net in networks if net.name == network.stack_name): network.segmentation_id = neutron_net.get('provider:segmentation_id') # we already have physical_network # network.physical_network = neutron_net.get('provider:physical_network') network.network_type = neutron_net.get('provider:network_type') network.neutron_info = neutron_net def _create_new_stack(self, heat_template): try: return heat_template.create(block=True, timeout=self.heat_timeout) except KeyboardInterrupt: raise y_exc.StackCreationInterrupt except Exception: LOG.exception("stack failed") # let the other failures happen, we want stack trace raise def _retrieve_existing_stack(self, stack_name): stack = HeatStack(stack_name) if stack.get(): return stack else: LOG.warning("Stack %s does not exist", self.name) return None def deploy(self): """deploys template into a stack using cloud""" LOG.info("Deploying context '%s' START", self.name) # self.key_filename = ''.join( # [consts.VNFTEST_ROOT_PATH, # '/vnftest/resources/files/vnftest_key-', # self.name]) # Permissions may have changed since creation; this can be fixed. If we # overwrite the file, we lose future access to VMs using this key. # As long as the file exists, even if it is unreadable, keep it intact # if not os.path.exists(self.key_filename): # SSH.gen_keys(self.key_filename) heat_template = HeatTemplate( self.name, template_file=self.template_file, heat_parameters=self.heat_parameters, os_cloud_config=self._flags.os_cloud_config) if self.template_file is None: self._add_resources_to_template(heat_template) if self._flags.no_setup: # Try to get an existing stack, returns a stack or None self.stack = self._retrieve_existing_stack(self.name) if not self.stack: self.stack = self._create_new_stack(heat_template) else: self.stack = self._create_new_stack(heat_template) # TODO: use Neutron to get segmentation-id self.get_neutron_info() # copy some vital stack output into server objects for server in self.servers.itervalues(): if server.networks: self.update_networks(server) if server.ports: self.add_server_port(server) if server.floating_ip: server.public_ip = \ self.stack.outputs[server.floating_ip["stack_name"]] LOG.info("Deploying context '%s' DONE", self.name) return self.stack.outputs @staticmethod def _port_net_is_existing(port_info): net_flags = port_info.get('net_flags', {}) return net_flags.get(consts.IS_EXISTING) @staticmethod def _port_net_is_public(port_info): net_flags = port_info.get('net_flags', {}) return net_flags.get(consts.IS_PUBLIC) def update_networks(self, server): for network in server.networks: if 'network' in network: network_name = network['network'] output_key = server.stack_name + ".networks.%s-ip" % network_name ip = self.stack.outputs[output_key] network["ip"] = ip def add_server_port(self, server): server_ports = server.ports.values() for server_port in server_ports: port_info = server_port[0] port_ip = self.stack.outputs[port_info["stack_name"]] port_net_is_existing = self._port_net_is_existing(port_info) port_net_is_public = self._port_net_is_public(port_info) if port_net_is_existing and (port_net_is_public or len(server_ports) == 1): server.public_ip = port_ip if not server.private_ip or len(server_ports) == 1: server.private_ip = port_ip server.interfaces = {} for network_name, ports in server.ports.items(): for port in ports: # port['port'] is either port name from mapping or default network_name if self._port_net_is_existing(port): continue server.interfaces[port['port']] = self.make_interface_dict(network_name, port['port'], port['stack_name'], self.stack.outputs) server.override_ip(network_name, port) def make_interface_dict(self, network_name, port, stack_name, outputs): private_ip = outputs[stack_name] mac_address = outputs[h_join(stack_name, "mac_address")] # these are attributes of the network, not the port output_subnet_cidr = outputs[h_join(self.name, network_name, 'subnet', 'cidr')] # these are attributes of the network, not the port output_subnet_gateway = outputs[h_join(self.name, network_name, 'subnet', 'gateway_ip')] return { # add default port name "name": port, "private_ip": private_ip, "subnet_id": outputs[h_join(stack_name, "subnet_id")], "subnet_cidr": output_subnet_cidr, "network": str(ipaddress.ip_network(output_subnet_cidr).network_address), "netmask": str(ipaddress.ip_network(output_subnet_cidr).netmask), "gateway_ip": output_subnet_gateway, "mac_address": mac_address, "device_id": outputs[h_join(stack_name, "device_id")], "network_id": outputs[h_join(stack_name, "network_id")], # this should be == vld_id for NSB tests "network_name": network_name, # to match vnf_generic "local_mac": mac_address, "local_ip": private_ip, } def _delete_key_file(self): if self.key_filename is not None: try: utils.remove_file(self.key_filename) utils.remove_file(self.key_filename + ".pub") except OSError: LOG.exception("There was an error removing the key file %s", self.key_filename) def undeploy(self): """undeploys stack from cloud""" if self._flags.no_teardown: LOG.info("Undeploying context '%s' SKIP", self.name) return if self.stack: LOG.info("Undeploying context '%s' START", self.name) self.stack.delete() self.stack = None LOG.info("Undeploying context '%s' DONE", self.name) self._delete_key_file() super(HeatContext, self).undeploy() @staticmethod def generate_routing_table(server): routes = [ { "network": intf["network"], "netmask": intf["netmask"], "if": name, # We have to encode a None gateway as '' for Jinja2 to YAML conversion "gateway": intf["gateway_ip"] if intf["gateway_ip"] else '', } for name, intf in server.interfaces.items() ] return routes def _get_server(self, attr_name): """lookup server info by name from context attr_name: either a name for a server created by vnftest or a dict with attribute name mapping when using external heat templates """ if isinstance(attr_name, collections.Mapping): node_name, cname = self.split_host_name(attr_name['name']) if cname is None or cname != self.name: return None # Create a dummy server instance for holding the *_ip attributes server = Server(node_name, self, {}) server.public_ip = self.stack.outputs.get( attr_name.get("public_ip_attr", object()), None) server.private_ip = self.stack.outputs.get( attr_name.get("private_ip_attr", object()), None) else: try: server = self.servers[attr_name] except KeyError: attr_name_no_suffix = attr_name.split("-")[0] server = self.servers.get(attr_name_no_suffix, None) if server is None: return None pkey = pkg_resources.resource_string( 'vnftest.resources', h_join('files/vnftest_key', self.name)).decode('utf-8') key_filename = pkg_resources.resource_filename('vnftest.resources', h_join('files/vnftest_key', self.name)) result = { "user": server._context.user, "pkey": pkey, "key_filename": key_filename, "private_ip": server.private_ip, "interfaces": server.interfaces, "routing_table": self.generate_routing_table(server), # empty IPv6 routing table "nd_route_tbl": [], # we want to save the contex name so we can generate pod.yaml "name": server.name, } # Target server may only have private_ip if server.public_ip: result["ip"] = server.public_ip return result def _get_network(self, attr_name): if not isinstance(attr_name, collections.Mapping): network = self.networks.get(attr_name, None) else: # Only take the first key, value key, value = next(iter(attr_name.items()), (None, None)) if key is None: return None network_iter = (n for n in self.networks.values() if getattr(n, key) == value) network = next(network_iter, None) if network is None: return None result = { "name": network.name, "segmentation_id": network.segmentation_id, "network_type": network.network_type, "physical_network": network.physical_network, } return result def _get_physical_nodes(self): return self.nodes def _get_physical_node_for_server(self, server_name): node_name, ctx_name = self.split_host_name(server_name) if ctx_name is None or self.name != ctx_name: return None matching_nodes = [s for s in self.servers.itervalues() if s.name == node_name] if len(matching_nodes) == 0: return None server = openstack_utils.get_server(self._shade_client, name_or_id=server_name) if server: server = server.toDict() list_hypervisors = self._operator_client.list_hypervisors() for hypervisor in list_hypervisors: if hypervisor.hypervisor_hostname == server['OS-EXT-SRV-ATTR:hypervisor_hostname']: for node in self.nodes: if node['ip'] == hypervisor.host_ip: return "{}.{}".format(node['name'], self.name) return None