root / snf-cyclades-app / synnefo / db / migrations / 0048_network_mac_prefix.py @ d0411c0a
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# encoding: utf-8
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import datetime |
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from south.db import db |
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from south.v2 import DataMigration |
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from django.db import models |
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from synnefo import settings |
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def get_available_mac_prefix(orm): |
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try:
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entry = orm.MacPrefixPool.objects.filter(available=True)[0] |
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entry.available = False
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entry.save() |
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return entry
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except IndexError: |
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try:
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last = orm.MacPrefixPool.objects.order_by('-index')[0] |
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index = last.index + 1
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except IndexError: |
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index = 1
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if index <= settings.MAC_POOL_LIMIT:
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create_mac_prefix = orm.MacPrefixPool.objects.create |
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return create_mac_prefix(index=index,
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value=value_from_index(index), |
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available=False)
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raise Exception('Pool of mac_prefixes exhausted. Can not' |
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' allocate mac_prefix.')
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def value_from_index(index): |
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"""Convert number to mac prefix
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"""
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base = settings.MAC_POOL_BASE |
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a = hex(int(base.replace(":", ""), 16) + index).replace("0x", '') |
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mac_prefix = ":".join([a[x:x + 2] for x in xrange(0, len(a), 2)]) |
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return mac_prefix
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class Migration(DataMigration): |
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def forwards(self, orm): |
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"Write your forwards methods here."
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# Clear the Mac prefix pool. If there were any Networks
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# with a MAC prefix, they will get a new one.
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orm.MacPrefixPool.objects.all().delete() |
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for network in orm.Network.objects.order_by('id'): |
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if network.deleted:
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network.mac_prefix = settings.MAC_POOL_BASE |
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else:
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mac_prefix = get_available_mac_prefix(orm) |
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network.mac_prefix = mac_prefix.value |
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network.save() |
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for backend_network in orm.BackendNetwork.objects.order_by('id'): |
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net_prefix = backend_network.network.mac_prefix |
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backend_suffix = hex(backend_network.backend.index).replace('0x', '') |
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mac_prefix = net_prefix + backend_suffix |
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backend_network.mac_prefix = mac_prefix |
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backend_network.save() |
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def backwards(self, orm): |
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"Write your backwards methods here."
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pass
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models = { |
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'db.backend': {
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'Meta': {'object_name': 'Backend'}, |
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'clustername': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'}), |
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'ctotal': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}), |
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'dfree': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}), |
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'drained': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'dtotal': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}), |
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'hash': ('django.db.models.fields.CharField', [], {'max_length': '40'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'index': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0', 'unique': 'True'}), |
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'mfree': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}), |
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'mtotal': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}), |
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'offline': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'password_hash': ('django.db.models.fields.CharField', [], {'max_length': '128', 'null': 'True', 'blank': 'True'}), |
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'pinst_cnt': ('django.db.models.fields.PositiveIntegerField', [], {'default': '0'}), |
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'port': ('django.db.models.fields.PositiveIntegerField', [], {'default': '5080'}), |
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'updated': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}), |
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'username': ('django.db.models.fields.CharField', [], {'max_length': '64', 'null': 'True', 'blank': 'True'}) |
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}, |
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'db.backendnetwork': {
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'Meta': {'object_name': 'BackendNetwork'}, |
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'backend': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'networks'", 'to': "orm['db.Backend']"}), |
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'backendjobid': ('django.db.models.fields.PositiveIntegerField', [], {'null': 'True'}), |
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'backendjobstatus': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'backendlogmsg': ('django.db.models.fields.TextField', [], {'null': 'True'}), |
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'backendopcode': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'backendtime': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(1, 1, 1, 0, 0)'}), |
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'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}), |
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'deleted': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'mac_prefix': ('django.db.models.fields.CharField', [], {'default': "'a'", 'max_length': '32'}), |
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'network': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'backend_networks'", 'to': "orm['db.Network']"}), |
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'operstate': ('django.db.models.fields.CharField', [], {'default': "'PENDING'", 'max_length': '30'}), |
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'updated': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}) |
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}, |
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'db.bridgepool': {
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'Meta': {'object_name': 'BridgePool'}, |
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'available': ('django.db.models.fields.BooleanField', [], {'default': 'True', 'blank': 'True'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'index': ('django.db.models.fields.IntegerField', [], {'unique': 'True'}), |
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'value': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'}) |
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}, |
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'db.flavor': {
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'Meta': {'unique_together': "(('cpu', 'ram', 'disk', 'disk_template'),)", 'object_name': 'Flavor'}, |
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'cpu': ('django.db.models.fields.IntegerField', [], {'default': '0'}), |
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'deleted': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'disk': ('django.db.models.fields.IntegerField', [], {'default': '0'}), |
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'disk_template': ('django.db.models.fields.CharField', [], {'default': "'drbd'", 'max_length': '32'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'ram': ('django.db.models.fields.IntegerField', [], {'default': '0'}) |
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}, |
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'db.macprefixpool': {
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'Meta': {'object_name': 'MacPrefixPool'}, |
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'available': ('django.db.models.fields.BooleanField', [], {'default': 'True', 'blank': 'True'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'index': ('django.db.models.fields.IntegerField', [], {'unique': 'True'}), |
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'value': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '128'}) |
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}, |
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'db.network': {
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'Meta': {'object_name': 'Network'}, |
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'action': ('django.db.models.fields.CharField', [], {'default': 'None', 'max_length': '32', 'null': 'True'}), |
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'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}), |
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'deleted': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'dhcp': ('django.db.models.fields.BooleanField', [], {'default': 'True', 'blank': 'True'}), |
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'gateway': ('django.db.models.fields.CharField', [], {'max_length': '32', 'null': 'True'}), |
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'gateway6': ('django.db.models.fields.CharField', [], {'max_length': '64', 'null': 'True'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'link': ('django.db.models.fields.CharField', [], {'max_length': '128', 'null': 'True'}), |
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'mac_prefix': ('django.db.models.fields.CharField', [], {'default': "'a'", 'max_length': '32'}), |
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'machines': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['db.VirtualMachine']", 'through': "orm['db.NetworkInterface']", 'symmetrical': 'False'}), |
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'name': ('django.db.models.fields.CharField', [], {'max_length': '128'}), |
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'public': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'reservations': ('django.db.models.fields.TextField', [], {'default': "''"}), |
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'state': ('django.db.models.fields.CharField', [], {'default': "'PENDING'", 'max_length': '32'}), |
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'subnet': ('django.db.models.fields.CharField', [], {'default': "'10.0.0.0/24'", 'max_length': '32'}), |
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'subnet6': ('django.db.models.fields.CharField', [], {'max_length': '64', 'null': 'True'}), |
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'type': ('django.db.models.fields.CharField', [], {'default': "'PRIVATE_PHYSICAL_VLAN'", 'max_length': '50'}), |
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'updated': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}), |
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'userid': ('django.db.models.fields.CharField', [], {'max_length': '128', 'null': 'True'}) |
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}, |
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'db.networkinterface': {
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'Meta': {'object_name': 'NetworkInterface'}, |
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'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}), |
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'dirty': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'firewall_profile': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'index': ('django.db.models.fields.IntegerField', [], {}), |
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'ipv4': ('django.db.models.fields.CharField', [], {'max_length': '15', 'null': 'True'}), |
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'ipv6': ('django.db.models.fields.CharField', [], {'max_length': '100', 'null': 'True'}), |
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'mac': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '32'}), |
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'machine': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'nics'", 'to': "orm['db.VirtualMachine']"}), |
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'network': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'nics'", 'to': "orm['db.Network']"}), |
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'updated': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}) |
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}, |
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'db.virtualmachine': {
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'Meta': {'object_name': 'VirtualMachine'}, |
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'action': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'backend': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'virtual_machines'", 'null': 'True', 'to': "orm['db.Backend']"}), |
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'backend_hash': ('django.db.models.fields.CharField', [], {'max_length': '128', 'null': 'True'}), |
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'backendjobid': ('django.db.models.fields.PositiveIntegerField', [], {'null': 'True'}), |
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'backendjobstatus': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'backendlogmsg': ('django.db.models.fields.TextField', [], {'null': 'True'}), |
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'backendopcode': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'backendtime': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime(1, 1, 1, 0, 0)'}), |
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'buildpercentage': ('django.db.models.fields.IntegerField', [], {'default': '0'}), |
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'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'}), |
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'deleted': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'flavor': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['db.Flavor']"}), |
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'hostid': ('django.db.models.fields.CharField', [], {'max_length': '100'}), |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'imageid': ('django.db.models.fields.CharField', [], {'max_length': '100'}), |
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'name': ('django.db.models.fields.CharField', [], {'max_length': '255'}), |
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'operstate': ('django.db.models.fields.CharField', [], {'max_length': '30', 'null': 'True'}), |
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'suspended': ('django.db.models.fields.BooleanField', [], {'default': 'False', 'blank': 'True'}), |
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'updated': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'blank': 'True'}), |
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'userid': ('django.db.models.fields.CharField', [], {'max_length': '100'}) |
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}, |
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'db.virtualmachinemetadata': {
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'Meta': {'unique_together': "(('meta_key', 'vm'),)", 'object_name': 'VirtualMachineMetadata'}, |
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'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), |
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'meta_key': ('django.db.models.fields.CharField', [], {'max_length': '50'}), |
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'meta_value': ('django.db.models.fields.CharField', [], {'max_length': '500'}), |
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'vm': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'metadata'", 'to': "orm['db.VirtualMachine']"}) |
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} |
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} |
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complete_apps = ['db']
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