Synnefo

# Copyright 2012 GRNET S.A. All rights reserved.

#

# Redistribution and use in source and binary forms, with or

# without modification, are permitted provided that the following

# conditions are met:

#

#   1. Redistributions of source code must retain the above

#      copyright notice, this list of conditions and the following

#      disclaimer.

#

#   2. Redistributions in binary form must reproduce the above

#      copyright notice, this list of conditions and the following

#      disclaimer in the documentation and/or other materials

#      provided with the distribution.

#

# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

# POSSIBILITY OF SUCH DAMAGE.

#

# The views and conclusions contained in the software and

# documentation are those of the authors and should not be

# interpreted as representing official policies, either expressed

# or implied, of GRNET S.A.

from optparse import make_option

from django.db import transaction

from django.core.management.base import BaseCommand, CommandError

from synnefo.management.common import convert_api_faults

from synnefo.api import util

from synnefo.db import pools

from synnefo import quotas

class Command(BaseCommand):

    can_import_settings = True

    output_transaction = True

    help = "Allocate a new floating IP"

    option_list = BaseCommand.option_list + (

        make_option(

            '--pool',

            dest='pool',

            help="The IP pool to allocate the address from"),

        make_option(

            '--address',

            dest='address',

            help="The address to be allocated"),

        make_option(

            '--owner',

            dest='owner',

            default=None,

            # required=True,

            help='The owner of the floating IP'),

    )

    @transaction.commit_on_success

    @convert_api_faults

    def handle(self, *args, **options):

        if args:

            raise CommandError("Command doesn't accept any arguments")

        pool = options['pool']

        address = options['address']

        owner = options['owner']

        if not owner:

            raise CommandError("'owner' is required for floating IP creation")

        if pool is None:

            if address:

                raise CommandError('Please specify a pool as well')

            # User did not specified a pool. Choose a random public IP

            try:

                floating_ip = util.allocate_public_ip(userid=owner,

                                                      floating_ip=True)

            except pools.EmptyPool:

                raise faults.Conflict("No more IP addresses available.")

        else:

            try:

                network_id = int(pool)

            except ValueError:

                raise CommandError("Invalid pool ID.")

            network = util.get_network(network_id, owner, for_update=True,

                                       non_deleted=True)

            if not network.floating_ip_pool:

                # Check that it is a floating IP pool

                raise CommandError("Floating IP pool %s does not exist." %

                                           network_id)

            floating_ip = util.allocate_ip(network, owner, address=address,

                                           floating_ip=True)

        quotas.issue_and_accept_commission(floating_ip)

        transaction.commit()

        self.stdout.write("Created floating IP '%s'.\n" % floating_ip)