root / snf-cyclades-app / synnefo / api / management / commands / network-modify.py @ b47f167a
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# Copyright 2012-2013 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 optparse import make_option |
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from django.core.management.base import BaseCommand, CommandError |
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from synnefo.db.models import (Network, Backend, BackendNetwork, |
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pooled_rapi_client) |
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from synnefo.management.common import (validate_network_info, get_network, |
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get_backend) |
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from synnefo.webproject.management.utils import parse_bool |
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from synnefo.logic.backend import create_network, delete_network |
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HELP_MSG = """Modify a network.
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This management command will only modify the state of the network in Cyclades
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DB. The state of the network in the Ganeti backends will remain unchanged. You
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should manually modify the network in all the backends, to synchronize the
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state of DB and Ganeti.
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The only exception is add_reserved_ips and remove_reserved_ips options, which
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modify the IP pool in the Ganeti backends.
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"""
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class Command(BaseCommand): |
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args = "<network id>"
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help = HELP_MSG |
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output_transaction = True
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option_list = BaseCommand.option_list + ( |
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make_option( |
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'--name',
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dest='name',
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metavar='NAME',
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help="Set network's name"),
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make_option( |
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'--userid',
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dest='userid',
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help="Set the userid of the network owner"),
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make_option( |
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'--subnet',
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dest='subnet',
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help="Set network's subnet"),
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make_option( |
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'--gateway',
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dest='gateway',
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help="Set network's gateway"),
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make_option( |
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'--subnet6',
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dest='subnet6',
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help="Set network's IPv6 subnet"),
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make_option( |
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'--gateway6',
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dest='gateway6',
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help="Set network's IPv6 gateway"),
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make_option( |
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'--dhcp',
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dest='dhcp',
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metavar="True|False",
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choices=["True", "False"], |
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help="Set if network will use nfdhcp"),
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make_option( |
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'--state',
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dest='state',
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metavar='STATE',
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help="Set network's state"),
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make_option( |
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'--link',
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dest='link',
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help="Set the connectivity link"),
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make_option( |
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'--mac-prefix',
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dest="mac_prefix",
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help="Set the MAC prefix"),
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make_option( |
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'--add-reserved-ips',
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dest="add_reserved_ips",
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help="Comma seperated list of IPs to externally reserve."),
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make_option( |
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'--remove-reserved-ips',
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dest="remove_reserved_ips",
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help="Comma seperated list of IPs to externally release."),
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make_option( |
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"--drained",
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dest="drained",
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metavar="True|False",
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choices=["True", "False"], |
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help="Set as drained to exclude for IP allocation."
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" Only used for public networks."),
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make_option( |
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"--add-to-backend",
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dest="add_to_backend",
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help="Create a public network to a Ganeti backend."),
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make_option( |
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"--remove-from-backend",
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dest="remove_from_backend",
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help="Remove a public network from a Ganeti backend."),
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make_option( |
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"--floating-ip-pool",
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dest="floating_ip_pool",
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metavar="True|False",
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choices=["True", "False"], |
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help="Convert network to a floating IP pool. During this"
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" conversation the network will be created to all"
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" available Ganeti backends."),
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) |
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def handle(self, *args, **options): |
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if len(args) != 1: |
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raise CommandError("Please provide a network ID") |
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network = get_network(args[0])
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# Validate subnet
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if options.get('subnet'): |
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validate_network_info(options) |
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# Validate state
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state = options.get('state')
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if state:
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allowed = [x[0] for x in Network.OPER_STATES] |
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if state not in allowed: |
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msg = "Invalid state, must be one of %s" % ', '.join(allowed) |
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raise CommandError(msg)
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floating_ip_pool = options["floating_ip_pool"]
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if floating_ip_pool is not None: |
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floating_ip_pool = parse_bool(floating_ip_pool) |
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if floating_ip_pool is False and network.floating_ip_pool is True: |
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if network.floating_ips.filter(deleted=False).exists(): |
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msg = ("Can not make network a non floating IP pool. There are"
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" still reserved floating IPs.")
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raise CommandError(msg)
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elif floating_ip_pool is True: |
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for backend in Backend.objects.filter(offline=False): |
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check_link_availability(backend, network) |
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dhcp = options.get("dhcp")
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if dhcp:
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options["dhcp"] = parse_bool(dhcp)
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drained = options.get("drained")
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if drained:
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options["drained"] = parse_bool(drained)
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fields = ('name', 'userid', 'subnet', 'gateway', 'subnet6', 'gateway6', |
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'dhcp', 'state', 'link', 'mac_prefix', 'drained', |
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'floating_ip_pool')
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for field in fields: |
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value = options.get(field, None)
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if value is not None: |
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network.__setattr__(field, value) |
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network.save() |
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add_reserved_ips = options.get('add_reserved_ips')
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remove_reserved_ips = options.get('remove_reserved_ips')
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if add_reserved_ips or remove_reserved_ips: |
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if add_reserved_ips:
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add_reserved_ips = add_reserved_ips.split(",")
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if remove_reserved_ips:
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remove_reserved_ips = remove_reserved_ips.split(",")
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for bnetwork in network.backend_networks.all(): |
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with pooled_rapi_client(bnetwork.backend) as c: |
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c.ModifyNetwork(network=network.backend_id, |
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add_reserved_ips=add_reserved_ips, |
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remove_reserved_ips=remove_reserved_ips) |
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if floating_ip_pool is True: |
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for backend in Backend.objects.filter(offline=False): |
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try:
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bnet = network.backend_networks.get(backend=backend) |
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except BackendNetwork.DoesNotExist:
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bnet = network.create_backend_network(backend=backend) |
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if bnet.operstate != "ACTIVE": |
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create_network(network, backend, connect=True)
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msg = "Sent job to create network '%s' in backend '%s'\n"
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self.stdout.write(msg % (network, backend))
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add_to_backend = options["add_to_backend"]
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if add_to_backend is not None: |
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backend = get_backend(add_to_backend) |
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network.create_backend_network(backend=backend) |
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create_network(network, backend, connect=True)
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msg = "Sent job to create network '%s' in backend '%s'\n"
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self.stdout.write(msg % (network, backend))
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remove_from_backend = options["remove_from_backend"]
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if remove_from_backend is not None: |
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backend = get_backend(remove_from_backend) |
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if network.nics.filter(machine__backend=backend,
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machine__deleted=False).exists():
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msg = "Can not remove. There are still connected VMs to this"\
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" network"
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raise CommandError(msg)
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network.action = "DESTROY"
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network.save() |
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delete_network(network, backend, disconnect=True)
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msg = "Sent job to delete network '%s' from backend '%s'\n"
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self.stdout.write(msg % (network, backend))
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def check_link_availability(backend, network): |
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"""Check if network link is available in backend."""
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with pooled_rapi_client(backend) as c: |
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ganeti_networks = c.GetNetworks(bulk=True)
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name = network.backend_id |
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mode = network.mode |
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link = network.link |
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for gnet in ganeti_networks: |
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if (gnet["name"] != name and |
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(mode, link) in [(m, l) for (_, m, l) in gnet["group_list"]]): |
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msg = "Can not create network '%s' in backend '%s'. Link '%s'" \
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" is already used by network '%s" % \
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(network, backend, gnet["name"])
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raise CommandError(msg)
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