Revision 6f011a2d snf-cyclades-app/synnefo/db/migrations/0037_network_migration.py
b/snf-cyclades-app/synnefo/db/migrations/0037_network_migration.py | ||
---|---|---|
5 | 5 |
from django.db import models |
6 | 6 |
from synnefo import settings |
7 | 7 |
|
8 |
def get_available_bridge(orm): |
|
9 |
try: |
|
10 |
entry = orm.BridgePool.objects.filter(available=True)[0] |
|
11 |
entry.available = False |
|
12 |
entry.save() |
|
13 |
return entry |
|
14 |
except IndexError: |
|
15 |
try: |
|
16 |
last = orm.BridgePool.objects.order_by('-index')[0] |
|
17 |
index = last.index + 1 |
|
18 |
except IndexError: |
|
19 |
index = 1 |
|
20 |
|
|
21 |
if index <= settings.PRIVATE_PHYSICAL_VLAN_MAX_NUMBER: |
|
22 |
create_bridge = orm.BridgePool.objects.create |
|
23 |
return create_bridge(index=index, |
|
24 |
value=value_from_index(index), |
|
25 |
available=False) |
|
26 |
raise Exception('Pool of bridges exhausted. Can not' |
|
27 |
' allocate bridge') |
|
28 |
|
|
29 |
def value_from_index(index): |
|
30 |
return settings.PRIVATE_PHYSICAL_VLAN_BRIDGE_PREFIX + str(index) |
|
31 |
|
|
32 | 8 |
class Migration(DataMigration): |
33 |
|
|
9 |
|
|
34 | 10 |
def forwards(self, orm): |
35 | 11 |
"Write your forwards methods here." |
36 | 12 |
|
37 | 13 |
print '\033[91m' + 'Subnet of all networks is set to 10.0.0.0/24.' |
38 | 14 |
print 'Gateway of all networks is set to null.' |
39 |
print "Use `snf-manage modifynetwork` to change them." + '\033[0m' |
|
15 |
print "Use `snf-manage network-modify` to change them." + '\033[0m' |
|
16 |
|
|
17 |
create_bridge = orm.BridgePool.objects.create |
|
18 |
for link in orm.NetworkLink.objects.all(): |
|
19 |
create_bridge(index=link.index, |
|
20 |
value=link.name, |
|
21 |
available=link.available) |
|
40 | 22 |
|
41 | 23 |
for network in orm.Network.objects.all(): |
42 | 24 |
if network.state == 'DELETED': |
43 | 25 |
network.deleted = True |
44 | 26 |
|
27 |
network.netlink = network.link.name |
|
28 |
try: |
|
29 |
base = settings.MAC_POOL_BASE |
|
30 |
assert(len(base) == 7) |
|
31 |
network.mac_prefix = base |
|
32 |
except AttributeError: |
|
33 |
network.mac_prefix = 'aa:00:0' |
|
34 |
|
|
45 | 35 |
if network.public == True: |
46 | 36 |
# Public Network |
47 |
network.netlink = network.link.name |
|
48 | 37 |
network.dhcp = True |
49 | 38 |
network.type = 'PUBLIC_ROUTED' |
50 | 39 |
else: |
51 | 40 |
network.dhcp = False |
52 | 41 |
network.type = 'PRIVATE_PHYSICAL_VLAN' |
53 |
if network.deleted: |
|
54 |
try: |
|
55 |
link = settings.PRIVATE_PHYSICAL_VLAN_BRIDGE_PREFIX + '0' |
|
56 |
except AttributeError: |
|
57 |
link = 'prv0' |
|
58 |
network.netlink = link |
|
59 |
else: |
|
60 |
# Non-deleted Network. Allocate A Bridge |
|
61 |
entry = get_available_bridge(orm) |
|
62 |
bridge = entry |
|
63 |
network.netlink = bridge.value |
|
64 | 42 |
|
65 | 43 |
network.save() |
66 |
|
|
67 |
|
|
44 |
|
|
45 |
|
|
68 | 46 |
def backwards(self, orm): |
69 | 47 |
"Write your backwards methods here." |
70 | 48 |
pass |
71 |
|
|
49 |
|
|
72 | 50 |
models = { |
73 | 51 |
'db.backend': { |
74 | 52 |
'Meta': {'object_name': 'Backend'}, |
Also available in: Unified diff