root / snf-cyclades-app / synnefo / api / management / commands / network-create.py @ 71ec054d
History | View | Annotate | Download (7.4 kB)
1 |
# Copyright 2012 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
from optparse import make_option |
35 |
|
36 |
from django.core.management.base import BaseCommand, CommandError |
37 |
|
38 |
from synnefo.db.models import Network, Backend |
39 |
from synnefo.api.util import net_resources, validate_network_size |
40 |
from synnefo.logic.backend import create_network |
41 |
from synnefo import settings |
42 |
|
43 |
import ipaddr |
44 |
|
45 |
NETWORK_TYPES = ['PUBLIC_ROUTED', 'PRIVATE_MAC_FILTERED', |
46 |
'PRIVATE_PHYSICAL_VLAN', 'CUSTOM_ROUTED', |
47 |
'CUSTOM_BRIDGED']
|
48 |
|
49 |
|
50 |
class Command(BaseCommand): |
51 |
can_import_settings = True
|
52 |
output_transaction = True
|
53 |
|
54 |
help = "Create a new network"
|
55 |
|
56 |
option_list = BaseCommand.option_list + ( |
57 |
make_option('--name',
|
58 |
dest='name',
|
59 |
help="Name of network"),
|
60 |
make_option('--owner',
|
61 |
dest='owner',
|
62 |
help="The owner of the network"),
|
63 |
make_option('--subnet',
|
64 |
dest='subnet',
|
65 |
default=None,
|
66 |
# required=True,
|
67 |
help='Subnet of the network'),
|
68 |
make_option('--gateway',
|
69 |
dest='gateway',
|
70 |
default=None,
|
71 |
help='Gateway of the network'),
|
72 |
make_option('--dhcp',
|
73 |
dest='dhcp',
|
74 |
action='store_true',
|
75 |
default=False,
|
76 |
help='Automatically assign IPs'),
|
77 |
make_option('--public',
|
78 |
dest='public',
|
79 |
action='store_true',
|
80 |
default=False,
|
81 |
help='Network is public'),
|
82 |
make_option('--type',
|
83 |
dest='type',
|
84 |
default='PRIVATE_MAC_FILTERED',
|
85 |
choices=NETWORK_TYPES, |
86 |
help='Type of network. Choices: ' + ', '.join(NETWORK_TYPES)), |
87 |
make_option('--subnet6',
|
88 |
dest='subnet6',
|
89 |
default=None,
|
90 |
help='IPv6 subnet of the network'),
|
91 |
make_option('--gateway6',
|
92 |
dest='gateway6',
|
93 |
default=None,
|
94 |
help='IPv6 gateway of the network'),
|
95 |
make_option('--backend-id',
|
96 |
dest='backend_id',
|
97 |
default=None,
|
98 |
help='ID of the backend that the network will be created. Only for'
|
99 |
' public networks'),
|
100 |
make_option('--link',
|
101 |
dest='link',
|
102 |
default=None,
|
103 |
help="Connectivity link of the Network. None for default."),
|
104 |
make_option('--mac-prefix',
|
105 |
dest='mac_prefix',
|
106 |
default=None,
|
107 |
help="MAC prefix of the network. None for default")
|
108 |
) |
109 |
|
110 |
def handle(self, *args, **options): |
111 |
if args:
|
112 |
raise CommandError("Command doesn't accept any arguments") |
113 |
|
114 |
name = options['name']
|
115 |
subnet = options['subnet']
|
116 |
net_type = options['type']
|
117 |
backend_id = options['backend_id']
|
118 |
public = options['public']
|
119 |
link = options['link']
|
120 |
mac_prefix = options['mac_prefix']
|
121 |
|
122 |
if not name: |
123 |
raise CommandError("Name is required") |
124 |
if not subnet: |
125 |
raise CommandError("Subnet is required") |
126 |
if public and not backend_id: |
127 |
raise CommandError("backend-id is required") |
128 |
if backend_id and not public: |
129 |
raise CommandError("Private networks must be created to" |
130 |
" all backends")
|
131 |
|
132 |
if mac_prefix and net_type == "PRIVATE_MAC_FILTERED": |
133 |
raise CommandError("Can not override MAC_FILTERED mac-prefix") |
134 |
if link and net_type == "PRIVATE_PHYSICAL_VLAN": |
135 |
raise CommandError("Can not override PHYSICAL_VLAN link") |
136 |
|
137 |
if backend_id:
|
138 |
try:
|
139 |
backend_id = int(backend_id)
|
140 |
backend = Backend.objects.get(id=backend_id) |
141 |
except ValueError: |
142 |
raise CommandError("Invalid backend ID") |
143 |
except Backend.DoesNotExist:
|
144 |
raise CommandError("Backend not found in DB") |
145 |
|
146 |
default_link, default_mac_prefix = net_resources(net_type) |
147 |
if not link: |
148 |
link = default_link |
149 |
if not mac_prefix: |
150 |
mac_prefix = default_mac_prefix |
151 |
|
152 |
subnet, gateway, subnet6, gateway6 = validate_network_info(options) |
153 |
|
154 |
if not link: |
155 |
raise CommandError("Can not create network. No connectivity link") |
156 |
|
157 |
network = Network.objects.create( |
158 |
name=name, |
159 |
userid=options['owner'],
|
160 |
subnet=subnet, |
161 |
gateway=gateway, |
162 |
dhcp=options['dhcp'],
|
163 |
type=net_type, |
164 |
public=public, |
165 |
link=link, |
166 |
mac_prefix=mac_prefix, |
167 |
gateway6=gateway6, |
168 |
subnet6=subnet6, |
169 |
state='PENDING')
|
170 |
|
171 |
if public:
|
172 |
# Create BackendNetwork only to the specified Backend
|
173 |
network.create_backend_network(backend) |
174 |
create_network(network, backends=[backend]) |
175 |
else:
|
176 |
# Create BackendNetwork entries for all Backends
|
177 |
network.create_backend_network() |
178 |
create_network(network) |
179 |
|
180 |
|
181 |
def validate_network_info(options): |
182 |
subnet = options['subnet']
|
183 |
gateway = options['gateway']
|
184 |
subnet6 = options['subnet6']
|
185 |
gateway6 = options['gateway6']
|
186 |
|
187 |
try:
|
188 |
net = ipaddr.IPv4Network(subnet) |
189 |
prefix = net.prefixlen |
190 |
if not validate_network_size(prefix): |
191 |
raise CommandError("Unsupport network mask %d." |
192 |
" Must be in range (%s,29] "
|
193 |
% (prefix, settings.MAX_CIDR_BLOCK)) |
194 |
except ValueError: |
195 |
raise CommandError('Malformed subnet') |
196 |
try:
|
197 |
gateway and ipaddr.IPv4Address(gateway) or None |
198 |
except ValueError: |
199 |
raise CommandError('Malformed gateway') |
200 |
|
201 |
try:
|
202 |
subnet6 and ipaddr.IPv6Network(subnet6) or None |
203 |
except ValueError: |
204 |
raise CommandError('Malformed subnet6') |
205 |
|
206 |
try:
|
207 |
gateway6 and ipaddr.IPv6Address(gateway6) or None |
208 |
except ValueError: |
209 |
raise CommandError('Malformed gateway6') |
210 |
|
211 |
return subnet, gateway, subnet6, gateway6
|