Python Instance.save方法代码示例

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
    def manage_container(self):
        from core.models import Instance, Flavor

        if self.deleted:
            return

        if (self.instance is not None) and (self.instance.image != self.image):
            self.instance.delete()
            self.instance = None

        if self.instance is None:
            if not self.provider_service.slices.count():
                raise XOSConfigurationError("The VCPE service has no slices")

            flavors = Flavor.objects.filter(name="m1.small")
            if not flavors:
                raise XOSConfigurationError("No m1.small flavor")

            node =self.pick_node()
            instance = Instance(slice = self.provider_service.slices.all()[0],
                            node = node,
                            image = self.image,
                            creator = self.creator,
                            deployment = node.site_deployment.deployment,
                            flavor = flavors[0])
            instance.save()

            try:
                self.instance = instance
                super(TenantWithContainer, self).save()
            except:
                instance.delete()
                raise

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
def adjust_scale(self, slice_hint, scale, max_per_node=None, exclusive_slices=[]):
    # late import to get around order-of-imports constraint in __init__.py
    from core.models import Instance

    slices = [x for x in self.slices.all() if slice_hint in x.name]
    for slice in slices:
        while slice.instances.all().count() > scale:
            s = slice.instances.all()[0]
            # print "drop instance", s
            s.delete()

        while slice.instances.all().count() < scale:
            node = self.pick_node(slice, max_per_node, exclusive_slices)
            if not node:
                # no more available nodes
                break

            image = slice.default_image
            if not image:
                raise XOSConfigurationError(
                    "No default_image for slice %s" % slice.name)

            flavor = slice.default_flavor
            if not flavor:
                raise XOSConfigurationError(
                    "No default_flavor for slice %s" % slice.name)

            s = Instance(slice=slice,
                         node=node,
                         creator=slice.creator,
                         image=image,
                         flavor=flavor,
                         deployment=node.site_deployment.deployment)
            s.save()

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
    def save_site_allocation(self, noAct = False, reset=False):
        print "save_site_allocation, reset=",reset

        if (not self._site_allocation):
            # Must be a instance that was just created, and has not site_allocation
            # field.
            return

        all_slice_instances = self.instances.all()
        for site_name in self._site_allocation.keys():
            desired_allocation = self._site_allocation[site_name]

            # make a list of the instances for this site
            instances = []
            for instance in all_slice_instances:
                if instance.node.site_deployment.site.name == site_name:
                    instances.append(instance)

            # delete extra instances
            while (reset and len(instances)>0) or (len(instances) > desired_allocation):
                instance = instances.pop()
                if (not noAct):
                    print "deleting instance", instance
                    instance.delete()
                else:
                    print "would delete instance", instance

            # add more instances
            if (len(instances) < desired_allocation):
                site = Site.objects.get(name = site_name)
                nodes = self.get_node_allocation([site])

                if (not nodes):
                    raise APIException(detail="no nodes in site %s" % site_name)

                while (len(instances) < desired_allocation):
                    # pick the least allocated node
                    nodes = sorted(nodes, key=attrgetter("instanceCount"))
                    node = nodes[0]

                    instance = Instance(name=node.name,
                            slice=self,
                            node=node,
                            image = self.default_image,
                            flavor = self.default_flavor,
                            creator = self.creator,
                            deployment = node.site_deployment.deployment)
                    instance.caller = self.caller
                    instances.append(instance)
                    if (not noAct):
                        print "added instance", instance
                        instance.save()
                    else:
                        print "would add instance", instance

                    node.instanceCount = node.instanceCount + 1

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
    def create(self, name = None, index = None):
        xos_args = self.get_xos_args(name=name, index=index)
        instance = Instance(**xos_args)
        instance.caller = self.user
        instance.no_sync = True
        instance.save()
        self.deferred_sync.append(instance)

        self.info("Created Instance '%s' on node '%s' using flavor '%s' and image '%s'" %
                  (str(instance), str(instance.node), str(instance.flavor), str(instance.image)))

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
def add_instance(auth, fields):
    user = authenticate(username=auth.get('username'),
                        password=auth.get('password'))
    
    images = _get_images(fields.get('image'))
    slices = _get_slices(fields.get('slice'))
    deployment_networks = _get_deployment_networks(fields.get('deploymentNetwork'))
    nodes = _get_nodes(fields.get('node'))
    if images: fields['image'] = images[0]     
    if slices: fields['slice'] = slices[0]     
    if deployment_networks: fields['deploymentNetwork'] = deployment_networks[0]     
    if nodes: fields['node'] = nodes[0]     

    instance = Instance(**fields)
    auth['tenant'] = instance.slice.name
    instance.os_manager = OpenStackManager(auth=auth, caller = user)    
    instance.save()
    return instance

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
def handle_container_on_metal(instance):
        from core.models import Instance, Flavor, Port, Image

        print "MODEL POLICY: instance", instance, "handle container_on_metal"

        if instance.deleted:
            return

        if (instance.isolation in ["container"]) and (instance.slice.network not in ["host", "bridged"]):
            # Our current docker-on-metal network strategy requires that there be some
            # VM on the server that connects to the networks, so that
            # the containers can piggyback off of that configuration.
            if not Instance.objects.filter(slice=instance.slice, node=instance.node, isolation="vm").exists():
                flavors = Flavor.objects.filter(name="m1.small")
                if not flavors:
                    raise XOSConfigurationError("No m1.small flavor")

                images = Image.objects.filter(kind="vm")

                companion_instance = Instance(slice = instance.slice,
                                node = instance.node,
                                image = images[0],
                                creator = instance.creator,
                                deployment = instance.node.site_deployment.deployment,
                                flavor = flavors[0])
                companion_instance.save()

                print "MODEL POLICY: instance", instance, "created companion", companion_instance

        # Add the ports for the container
        for network in instance.slice.networks.all():
            # hmmm... The NAT ports never become ready, because sync_ports never
            # instantiates them. Need to think about this.
            print "MODEL POLICY: instance", instance, "handling network", network
            if (network.name.endswith("-nat")):
                continue

            if not Port.objects.filter(network=network, instance=instance).exists():
                port = Port(network = network, instance=instance)
                port.save()
                print "MODEL POLICY: instance", instance, "created port", port

# 需要导入模块: from core.models import Instance [as 别名]
# 或者: from core.models.Instance import save [as 别名]
    def make_new_instance(self):
        from core.models import Instance, Flavor

        flavors = Flavor.objects.filter(name="m1.small")
        if not flavors:
            raise XOSConfigurationError("No m1.small flavor")

        (node, parent) = LeastLoadedNodeScheduler(self.slice).pick()

        instance = Instance(slice=self.slice,
                            node=node,
                            image=self.image,
                            creator=self.slice.creator,
                            deployment=node.site_deployment.deployment,
                            flavor=flavors[0],
                            isolation="vm",
                            parent=parent)
        instance.save()
        # We rely on a special naming convention to identify the VMs that will
        # hole containers.
        instance.name = "%s-outer-%s" % (instance.slice.name, instance.id)
        instance.save()
        return instance