| from django.db import models |
| from core.models import Service, PlCoreBase, Slice, Instance, Tenant, TenantWithContainer, Node, Image, User, Flavor, NetworkParameter, NetworkParameterType, Port, AddressPool, User |
| from core.models.plcorebase import StrippedCharField |
| import os |
| from django.db import models, transaction |
| from django.forms.models import model_to_dict |
| from django.db.models import Q |
| from operator import itemgetter, attrgetter, methodcaller |
| from core.models import Tag |
| from core.models.service import LeastLoadedNodeScheduler |
| from services.vrouter.models import VRouterService, VRouterTenant |
| import traceback |
| from xos.exceptions import * |
| from xos.config import Config |
| |
| class ConfigurationError(Exception): |
| pass |
| |
| VCPE_KIND = "vCPE" |
| CORD_SUBSCRIBER_KIND = "CordSubscriberRoot" |
| |
| # ------------------------------------------- |
| # VCPE |
| # ------------------------------------------- |
| |
| class VSGService(Service): |
| KIND = VCPE_KIND |
| |
| URL_FILTER_KIND_CHOICES = ( (None, "None"), ("safebrowsing", "Safe Browsing"), ("answerx", "AnswerX") ) |
| |
| url_filter_kind = StrippedCharField(max_length=30, choices=URL_FILTER_KIND_CHOICES, null=True, blank=True) |
| dns_servers = StrippedCharField(max_length=255, default="8.8.8.8") |
| node_label = StrippedCharField(max_length=30, null=True, blank=True) |
| docker_image_name = StrippedCharField(max_length=255, default="docker.io/xosproject/vsg") |
| docker_insecure_registry = models.BooleanField(default=False) |
| |
| class Meta: |
| app_label = "vsg" |
| verbose_name = "vSG Service" |
| |
| class VSGTenant(TenantWithContainer): |
| KIND = VCPE_KIND |
| |
| # it's not clear we still need this field... |
| last_ansible_hash = StrippedCharField(max_length=128, null=True, blank=True) |
| |
| class Meta: |
| app_label = "vsg" |
| |
| sync_attributes = ("wan_container_ip", "wan_container_mac", "wan_container_netbits", |
| "wan_container_gateway_ip", "wan_container_gateway_mac", |
| "wan_vm_ip", "wan_vm_mac") |
| |
| def __init__(self, *args, **kwargs): |
| super(VSGTenant, self).__init__(*args, **kwargs) |
| self.cached_vrouter=None |
| |
| @property |
| def vrouter(self): |
| vrouter = self.get_newest_subscribed_tenant(VRouterTenant) |
| if not vrouter: |
| return None |
| |
| # always return the same object when possible |
| if (self.cached_vrouter) and (self.cached_vrouter.id == vrouter.id): |
| return self.cached_vrouter |
| |
| vrouter.caller = self.creator |
| self.cached_vrouter = vrouter |
| return vrouter |
| |
| @vrouter.setter |
| def vrouter(self, value): |
| raise XOSConfigurationError("VSGTenant.vrouter setter is not implemented") |
| |
| @property |
| def volt(self): |
| from services.volt.models import VOLTTenant |
| if not self.subscriber_tenant: |
| return None |
| volts = VOLTTenant.objects.filter(id=self.subscriber_tenant.id) |
| if not volts: |
| return None |
| return volts[0] |
| |
| @volt.setter |
| def volt(self, value): |
| raise XOSConfigurationError("VSGTenant.volt setter is not implemented") |
| |
| @property |
| def ssh_command(self): |
| if self.instance: |
| return self.instance.get_ssh_command() |
| else: |
| return "no-instance" |
| |
| def get_vrouter_field(self, name, default=None): |
| if self.vrouter: |
| return getattr(self.vrouter, name, default) |
| else: |
| return default |
| |
| @property |
| def wan_container_ip(self): |
| return self.get_vrouter_field("public_ip", None) |
| |
| @property |
| def wan_container_mac(self): |
| return self.get_vrouter_field("public_mac", None) |
| |
| @property |
| def wan_container_netbits(self): |
| return self.get_vrouter_field("netbits", None) |
| |
| @property |
| def wan_container_gateway_ip(self): |
| return self.get_vrouter_field("gateway_ip", None) |
| |
| @property |
| def wan_container_gateway_mac(self): |
| return self.get_vrouter_field("gateway_mac", None) |
| |
| @property |
| def wan_vm_ip(self): |
| tags = Tag.select_by_content_object(self.instance).filter(name="vm_vrouter_tenant") |
| if tags: |
| tenant = VRouterTenant.objects.get(id=tags[0].value) |
| return tenant.public_ip |
| else: |
| raise Exception("no vm_vrouter_tenant tag for instance %s" % o.instance) |
| |
| @property |
| def wan_vm_mac(self): |
| tags = Tag.select_by_content_object(self.instance).filter(name="vm_vrouter_tenant") |
| if tags: |
| tenant = VRouterTenant.objects.get(id=tags[0].value) |
| return tenant.public_mac |
| else: |
| raise Exception("no vm_vrouter_tenant tag for instance %s" % o.instance) |
| |
| @property |
| def is_synced(self): |
| return (self.enacted is not None) and (self.enacted >= self.updated) |
| |
| @is_synced.setter |
| def is_synced(self, value): |
| pass |
| |
| def get_vrouter_service(self): |
| vrouterServices = VRouterService.get_service_objects().all() |
| if not vrouterServices: |
| raise XOSConfigurationError("No VROUTER Services available") |
| return vrouterServices[0] |
| |
| def manage_vrouter(self): |
| # Each vCPE object owns exactly one vRouterTenant object |
| |
| if self.deleted: |
| return |
| |
| if self.vrouter is None: |
| vrouter = self.get_vrouter_service().get_tenant(address_pool_name="addresses_vsg", subscriber_tenant = self) |
| vrouter.caller = self.creator |
| vrouter.save() |
| |
| def cleanup_vrouter(self): |
| if self.vrouter: |
| # print "XXX cleanup vrouter", self.vrouter |
| self.vrouter.delete() |
| |
| def cleanup_orphans(self): |
| # ensure vCPE only has one vRouter |
| cur_vrouter = self.vrouter |
| for vrouter in list(self.get_subscribed_tenants(VRouterTenant)): |
| if (not cur_vrouter) or (vrouter.id != cur_vrouter.id): |
| # print "XXX clean up orphaned vrouter", vrouter |
| vrouter.delete() |
| |
| if self.orig_instance_id and (self.orig_instance_id != self.get_attribute("instance_id")): |
| instances=Instance.objects.filter(id=self.orig_instance_id) |
| if instances: |
| # print "XXX clean up orphaned instance", instances[0] |
| instances[0].delete() |
| |
| def get_slice(self): |
| if not self.provider_service.slices.count(): |
| print self, "dio porco" |
| raise XOSConfigurationError("The service has no slices") |
| slice = self.provider_service.slices.all()[0] |
| return slice |
| |
| def get_vsg_service(self): |
| return VSGService.get_service_objects().get(id=self.provider_service.id) |
| |
| def find_instance_for_s_tag(self, s_tag): |
| #s_tags = STagBlock.objects.find(s_s_tag) |
| #if s_tags: |
| # return s_tags[0].instance |
| |
| tags = Tag.objects.filter(name="s_tag", value=s_tag) |
| if tags: |
| return tags[0].content_object |
| |
| return None |
| |
| def find_or_make_instance_for_s_tag(self, s_tag): |
| instance = self.find_instance_for_s_tag(self.volt.s_tag) |
| if instance: |
| return instance |
| |
| flavors = Flavor.objects.filter(name="m1.small") |
| if not flavors: |
| raise XOSConfigurationError("No m1.small flavor") |
| |
| slice = self.provider_service.slices.all()[0] |
| |
| if slice.default_isolation == "container_vm": |
| (node, parent) = ContainerVmScheduler(slice).pick() |
| else: |
| (node, parent) = LeastLoadedNodeScheduler(slice, label=self.get_vsg_service().node_label).pick() |
| |
| instance = Instance(slice = slice, |
| node = node, |
| image = self.image, |
| creator = self.creator, |
| deployment = node.site_deployment.deployment, |
| flavor = flavors[0], |
| isolation = slice.default_isolation, |
| parent = parent) |
| |
| self.save_instance(instance) |
| |
| return instance |
| |
| def manage_container(self): |
| from core.models import Instance, Flavor |
| |
| if self.deleted: |
| return |
| |
| # For container or container_vm isolation, use what TenantWithCotnainer |
| # provides us |
| slice = self.get_slice() |
| if slice.default_isolation in ["container_vm", "container"]: |
| super(VSGTenant,self).manage_container() |
| return |
| |
| if not self.volt: |
| raise XOSConfigurationError("This vCPE container has no volt") |
| |
| if self.instance: |
| # We're good. |
| return |
| |
| instance = self.find_or_make_instance_for_s_tag(self.volt.s_tag) |
| self.instance = instance |
| super(TenantWithContainer, self).save() |
| |
| def cleanup_container(self): |
| if self.get_slice().default_isolation in ["container_vm", "container"]: |
| super(VSGTenant,self).cleanup_container() |
| |
| # To-do: cleanup unused instances |
| pass |
| |
| def find_or_make_port(self, instance, network, **kwargs): |
| port = Port.objects.filter(instance=instance, network=network) |
| if port: |
| port = port[0] |
| else: |
| port = Port(instance=instance, network=network, **kwargs) |
| port.save() |
| return port |
| |
| def get_lan_network(self, instance): |
| slice = self.provider_service.slices.all()[0] |
| # there should only be one network private network, and its template should not be the management template |
| lan_networks = [x for x in slice.networks.all() if x.template.visibility=="private" and (not "management" in x.template.name)] |
| if len(lan_networks)>1: |
| raise XOSProgrammingError("The vSG slice should only have one non-management private network") |
| if not lan_networks: |
| raise XOSProgrammingError("No lan_network") |
| return lan_networks[0] |
| |
| def save_instance(self, instance): |
| with transaction.atomic(): |
| instance.volumes = "/etc/dnsmasq.d,/etc/ufw" |
| super(VSGTenant, self).save_instance(instance) |
| |
| if instance.isolation in ["container", "container_vm"]: |
| lan_network = self.get_lan_network(instance) |
| port = self.find_or_make_port(instance, lan_network, ip="192.168.0.1", port_id="unmanaged") |
| port.set_parameter("c_tag", self.volt.c_tag) |
| port.set_parameter("s_tag", self.volt.s_tag) |
| port.set_parameter("device", "eth1") |
| port.set_parameter("bridge", "br-lan") |
| |
| wan_networks = [x for x in instance.slice.networks.all() if "wan" in x.name] |
| if not wan_networks: |
| raise XOSProgrammingError("No wan_network") |
| port = self.find_or_make_port(instance, wan_networks[0]) |
| port.set_parameter("next_hop", value="10.0.1.253") # FIX ME |
| port.set_parameter("device", "eth0") |
| |
| if instance.isolation in ["vm"]: |
| lan_network = self.get_lan_network(instance) |
| port = self.find_or_make_port(instance, lan_network) |
| port.set_parameter("c_tag", self.volt.c_tag) |
| port.set_parameter("s_tag", self.volt.s_tag) |
| port.set_parameter("neutron_port_name", "stag-%s" % self.volt.s_tag) |
| port.save() |
| |
| # tag the instance with the s-tag, so we can easily find the |
| # instance later |
| if self.volt and self.volt.s_tag: |
| tags = Tag.objects.filter(name="s_tag", value=self.volt.s_tag) |
| if not tags: |
| tag = Tag(service=self.provider_service, content_object=instance, name="s_tag", value=self.volt.s_tag) |
| tag.save() |
| |
| # VTN-CORD needs a WAN address for the VM, so that the VM can |
| # be configured. |
| tags = Tag.select_by_content_object(instance).filter(name="vm_vrouter_tenant") |
| if not tags: |
| vrouter = self.get_vrouter_service().get_tenant(address_pool_name="addresses_vsg", subscriber_service = self.provider_service) |
| vrouter.set_attribute("tenant_for_instance_id", instance.id) |
| vrouter.save() |
| tag = Tag(service=self.provider_service, content_object=instance, name="vm_vrouter_tenant", value="%d" % vrouter.id) |
| tag.save() |
| |
| def save(self, *args, **kwargs): |
| if not self.creator: |
| if not getattr(self, "caller", None): |
| # caller must be set when creating a vCPE since it creates a slice |
| raise XOSProgrammingError("VSGTenant's self.caller was not set") |
| self.creator = self.caller |
| if not self.creator: |
| raise XOSProgrammingError("VSGTenant's self.creator was not set") |
| |
| super(VSGTenant, self).save(*args, **kwargs) |
| model_policy_vcpe(self.pk) |
| |
| def delete(self, *args, **kwargs): |
| self.cleanup_vrouter() |
| self.cleanup_container() |
| super(VSGTenant, self).delete(*args, **kwargs) |
| |
| def model_policy_vcpe(pk): |
| # TODO: this should be made in to a real model_policy |
| with transaction.atomic(): |
| vcpe = VSGTenant.objects.select_for_update().filter(pk=pk) |
| if not vcpe: |
| return |
| vcpe = vcpe[0] |
| vcpe.manage_container() |
| vcpe.manage_vrouter() |
| vcpe.cleanup_orphans() |
| |
| |