root / snf-cyclades-app / synnefo / logic / ports.py @ 316787ab
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# Copyright 2011-2013 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from functools import wraps |
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from django.db import transaction |
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#from django.conf import settings
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from synnefo.api import util |
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from snf_django.lib.api import faults |
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from synnefo.db.models import NetworkInterface |
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from synnefo.logic import backend |
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from logging import getLogger |
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log = getLogger(__name__) |
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def port_command(action): |
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def decorator(func): |
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@wraps(func)
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@transaction.commit_on_success()
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def wrapper(port, *args, **kwargs): |
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return func(port, *args, **kwargs)
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return wrapper
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return decorator
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@transaction.commit_on_success
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def create(network, machine, ipaddress, name="", security_groups=None, |
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device_owner='vm'):
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"""Create a new port connecting a server/router to a network.
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Connect a server/router to a network by creating a new Port. If
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'ipaddress' argument is specified, the port will be assigned this
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IPAddress. Otherwise, an IPv4 address from the IPv4 subnet will be
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allocated.
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"""
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if network.state != 'ACTIVE': |
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raise faults.Conflict('Network build in process') |
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user_id = machine.userid |
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if ipaddress is None: |
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if network.subnets.filter(ipversion=4).exists(): |
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ipaddress = util.allocate_ip(network, user_id) |
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else:
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if ipaddress.nic is not None: |
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raise faults.BadRequest("Address '%s' already in use." % |
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ipaddress.address) |
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#create the port
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port = NetworkInterface.objects.create(name=name, |
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network=network, |
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machine=machine, |
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userid=user_id, |
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device_owner=device_owner, |
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state="BUILDING")
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#add the security groups if any
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if security_groups:
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port.security_groups.add(*security_groups) |
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# If no IPAddress is specified, try to allocate one
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if ipaddress is None and network.subnets.filter(ipversion=4).exists(): |
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ipaddress = util.allocate_ip(network, user_id) |
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# Associate the IPAddress with the NIC
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if ipaddress is not None: |
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ipaddress.nic = port |
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ipaddress.save() |
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jobID = backend.connect_to_network(machine, port) |
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log.info("Created Port %s with IP Address: %s. Job: %s",
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port, ipaddress, jobID) |
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# TODO: Consider quotas for Ports
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# TODO: Associate jobID with the port
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return port
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@transaction.commit_on_success
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def delete(port): |
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"""Delete a port by removing the NIC card the instance.
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Send a Job to remove the NIC card from the instance. The port
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will be deleted and the associated IPv4 addressess will be released
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when the job completes successfully.
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"""
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jobID = backend.disconnect_from_network(port.machine, port) |
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log.info("Removing port %s, Job: %s", port, jobID)
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return port
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