Synnefo

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from optparse import make_option

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

from synnefo.management.common import convert_api_faults

from synnefo.api import util

from synnefo.management.common import (get_network, get_vm,

                                       get_floating_ip_by_id)

from synnefo.logic import ports

HELP_MSG = """Create a new port.

Connect a server/router to a network by creating a new port. If 'floating_ip'

option is used, the specified floating IP will be assigned to the new port.

Otherwise, the port will get an IP address for each Subnet that is associated

with the network."""

class Command(BaseCommand):

    help = HELP_MSG

    option_list = BaseCommand.option_list + (

        make_option(

            "--name",

            dest="name",

            default=None,

            help="Name of the port."),

        make_option(

            "--network",

            dest="network_id",

            default=None,

            help="The ID of the network where the port will be created."),

        make_option(

            "--server",

            dest="server_id",

            default=None,

            help="The ID of the server that the port will be connected to."),

        #make_option(

        #    "--router",

        #    dest="router_id",

        #    default=None,

        #    help="The ID of the router that the port will be connected to."),

        make_option(

            "--floating-ip",

            dest="floating_ip_id",

            default=None,

            help="The ID of the floating IP to use for the port."),

        make_option(

            "--security-groups",

            dest="security-groups",

            default=None,

            help="Comma separated list of Security Group IDs to associate"

                 " with the port."),

    )

    @convert_api_faults

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

        if args:

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

        name = options["name"]

        network_id = options["network_id"]

        server_id = options["server_id"]

        #router_id = options["router_id"]

        router_id = None

        floating_ip_id = options["floating_ip_id"]

        # assume giving security groups comma separated

        security_group_ids = options["security-groups"]

        if not name:

            name = ""

        if (server_id and router_id) or not (server_id or router_id):

            raise CommandError("Please give either a server or a router id")

        if not network_id:

            raise CommandError("Please specify a 'network'")

        if server_id:

            owner = "vm"

            vm = get_vm(server_id)

            #if vm.router:

            #    raise CommandError("Server '%s' does not exist." % server_id)

        elif router_id:

            owner = "router"

            vm = get_vm(router_id)

            if not vm.router:

                raise CommandError("Router '%s' does not exist." % router_id)

        else:

            raise CommandError("Neither server or router is specified")

        floating_ip = None

        if floating_ip_id:

            floating_ip = get_floating_ip_by_id(floating_ip_id,

                                                for_update=True)

            if floating_ip.userid != vm.userid:

                msg = "Floating IP %s does not belong to server/router owner."

                raise CommandError(msg % floating_ip)

        # get the network

        network = get_network(network_id)

        # validate security groups

        sg_list = []

        if security_group_ids:

            security_group_ids = security_group_ids.split(",")

            for gid in security_group_ids:

                sg = util.get_security_group(int(gid))

                sg_list.append(sg)

        new_port = ports.create(network, vm, name=name, ipaddress=floating_ip,

                                security_groups=sg_list,

                                device_owner=owner)

        self.stdout.write("Created port '%s' in DB.\n" % new_port)

        # TODO: Display port information, like ip address

        # TODO: Add --wait argument to report progress about the Ganeti job.