Synnefo

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import json

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

from synnefo.db.models import Backend, Network, BackendNetwork

from synnefo.util.rapi import GanetiApiError

class Command(BaseCommand):

    help = "Inspect a network on DB and Ganeti."

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

        if len(args) != 1:

            raise CommandError("Please provide a network ID.")

        try:

            net_id = int(args[0])

        except ValueError:

            raise CommandError("Invalid network ID.")

        try:

            net = Network.objects.get(id=net_id)

        except Network.DoesNotExist:

            raise CommandError("Network not found in DB.")

        sep = '-' * 80 + '\n'

        labels = ('name', 'backend-name', 'state', 'owner', 'subnet', 'gateway',

                  'max_prefix', 'link', 'public', 'dhcp', 'type', 'deleted',

                  'action')

        fields = (net.name, net.backend_id, net.state, str(net.userid),

                  str(net.subnet), str(net.gateway), str(net.mac_prefix),

                  str(net.link), str(net.public),  str(net.dhcp),

                  str(net.type), str(net.deleted), str(net.action))

        self.stdout.write(sep)

        self.stdout.write('State of Network in DB\n')

        self.stdout.write(sep)

        for l, f in zip(labels, fields):

            self.stdout.write(l.ljust(20) + ': ' + f.ljust(20) + '\n')

        labels = ('Backend', 'State', 'Deleted', 'JobID', 'OpCode',

                  'JobStatus')

        for back_net in BackendNetwork.objects.filter(network=net):

            self.stdout.write('\n')

            fields = (back_net.backend.clustername, back_net.operstate,

                     str(back_net.deleted),  str(back_net.backendjobid),

                     str(back_net.backendopcode),

                     str(back_net.backendjobstatus))

            for l, f in zip(labels, fields):

                self.stdout.write(l.ljust(20) + ': ' + f.ljust(20) + '\n')

        self.stdout.write('\n')

        self.stdout.write(sep)

        self.stdout.write('State of Network in Ganeti\n')

        self.stdout.write(sep)

        for backend in Backend.objects.exclude(offline=True):

            client = backend.client

            try:

                g_net = client.GetNetwork(net.backend_id)

                self.stdout.write("Backend: %s\n" % backend.clustername)

                print json.dumps(g_net, indent=2)

                self.stdout.write(sep)

            except GanetiApiError as e:

                if e.code == 404:

                    self.stdout.write('Network does not exist in backend %s\n' %

                                      backend.clustername)

                else:

                    raise e