root / snf-cyclades-app / synnefo / logic / networks.py @ 3f18f035
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1 | ece5581b | Christos Stavrakakis | # Copyright 2011-2013 GRNET S.A. All rights reserved.
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2 | ece5581b | Christos Stavrakakis | #
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3 | ece5581b | Christos Stavrakakis | # Redistribution and use in source and binary forms, with or
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4 | ece5581b | Christos Stavrakakis | # without modification, are permitted provided that the following
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5 | ece5581b | Christos Stavrakakis | # conditions are met:
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6 | ece5581b | Christos Stavrakakis | #
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7 | ece5581b | Christos Stavrakakis | # 1. Redistributions of source code must retain the above
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8 | ece5581b | Christos Stavrakakis | # copyright notice, this list of conditions and the following
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9 | ece5581b | Christos Stavrakakis | # disclaimer.
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10 | ece5581b | Christos Stavrakakis | #
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11 | ece5581b | Christos Stavrakakis | # 2. Redistributions in binary form must reproduce the above
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12 | ece5581b | Christos Stavrakakis | # copyright notice, this list of conditions and the following
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13 | ece5581b | Christos Stavrakakis | # disclaimer in the documentation and/or other materials
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14 | ece5581b | Christos Stavrakakis | # provided with the distribution.
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15 | ece5581b | Christos Stavrakakis | #
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16 | ece5581b | Christos Stavrakakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | ece5581b | Christos Stavrakakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | ece5581b | Christos Stavrakakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | ece5581b | Christos Stavrakakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | ece5581b | Christos Stavrakakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | ece5581b | Christos Stavrakakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | ece5581b | Christos Stavrakakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | ece5581b | Christos Stavrakakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | ece5581b | Christos Stavrakakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | ece5581b | Christos Stavrakakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | ece5581b | Christos Stavrakakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | ece5581b | Christos Stavrakakis | # POSSIBILITY OF SUCH DAMAGE.
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28 | ece5581b | Christos Stavrakakis | #
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29 | ece5581b | Christos Stavrakakis | # The views and conclusions contained in the software and
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30 | ece5581b | Christos Stavrakakis | # documentation are those of the authors and should not be
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31 | ece5581b | Christos Stavrakakis | # interpreted as representing official policies, either expressed
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32 | ece5581b | Christos Stavrakakis | # or implied, of GRNET S.A.
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33 | a4658bbe | Christos Stavrakakis | |
34 | ece5581b | Christos Stavrakakis | from functools import wraps |
35 | ece5581b | Christos Stavrakakis | from django.db import transaction |
36 | ece5581b | Christos Stavrakakis | |
37 | ece5581b | Christos Stavrakakis | from snf_django.lib.api import faults |
38 | ece5581b | Christos Stavrakakis | from synnefo.api import util |
39 | ece5581b | Christos Stavrakakis | from synnefo import quotas |
40 | f82dfec6 | Christos Stavrakakis | from synnefo.db.models import Network, Backend |
41 | ece5581b | Christos Stavrakakis | from synnefo.db.utils import validate_mac |
42 | ece5581b | Christos Stavrakakis | from synnefo.db.pools import EmptyPool |
43 | f82dfec6 | Christos Stavrakakis | from synnefo.logic import backend as backend_mod, subnets |
44 | ece5581b | Christos Stavrakakis | |
45 | ece5581b | Christos Stavrakakis | from logging import getLogger |
46 | ece5581b | Christos Stavrakakis | log = getLogger(__name__) |
47 | ece5581b | Christos Stavrakakis | |
48 | ece5581b | Christos Stavrakakis | |
49 | ece5581b | Christos Stavrakakis | def validate_network_action(network, action): |
50 | ece5581b | Christos Stavrakakis | if network.deleted:
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51 | ece5581b | Christos Stavrakakis | raise faults.BadRequest("Network has been deleted.") |
52 | ece5581b | Christos Stavrakakis | |
53 | ece5581b | Christos Stavrakakis | |
54 | ece5581b | Christos Stavrakakis | def network_command(action): |
55 | ece5581b | Christos Stavrakakis | def decorator(func): |
56 | ece5581b | Christos Stavrakakis | @wraps(func)
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57 | ece5581b | Christos Stavrakakis | @transaction.commit_on_success()
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58 | ece5581b | Christos Stavrakakis | def wrapper(network, *args, **kwargs): |
59 | ece5581b | Christos Stavrakakis | validate_network_action(network, action) |
60 | ece5581b | Christos Stavrakakis | return func(network, *args, **kwargs)
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61 | ece5581b | Christos Stavrakakis | return wrapper
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62 | ece5581b | Christos Stavrakakis | return decorator
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63 | ece5581b | Christos Stavrakakis | |
64 | ece5581b | Christos Stavrakakis | |
65 | ece5581b | Christos Stavrakakis | @transaction.commit_on_success
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66 | a96e84cf | Christos Stavrakakis | def create(userid, name, flavor, subnet=None, gateway=None, subnet6=None, |
67 | c75ab92e | Christos Stavrakakis | gateway6=None, public=False, dhcp=True, link=None, mac_prefix=None, |
68 | 671db71c | Christos Stavrakakis | mode=None, floating_ip_pool=False, tags=None, backends=None, |
69 | b47f167a | Christos Stavrakakis | lazy_create=True):
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70 | ece5581b | Christos Stavrakakis | if flavor is None: |
71 | ece5581b | Christos Stavrakakis | raise faults.BadRequest("Missing request parameter 'type'") |
72 | ece5581b | Christos Stavrakakis | elif flavor not in Network.FLAVORS.keys(): |
73 | ece5581b | Christos Stavrakakis | raise faults.BadRequest("Invalid network type '%s'" % flavor) |
74 | ece5581b | Christos Stavrakakis | |
75 | c75ab92e | Christos Stavrakakis | if mac_prefix is not None and flavor == "MAC_FILTERED": |
76 | c75ab92e | Christos Stavrakakis | raise faults.BadRequest("Can not override MAC_FILTERED mac-prefix") |
77 | c75ab92e | Christos Stavrakakis | if link is not None and flavor == "PHYSICAL_VLAN": |
78 | c75ab92e | Christos Stavrakakis | raise faults.BadRequest("Can not override PHYSICAL_VLAN link") |
79 | c75ab92e | Christos Stavrakakis | |
80 | c75ab92e | Christos Stavrakakis | if subnet is None and floating_ip_pool: |
81 | a96e84cf | Christos Stavrakakis | raise faults.BadRequest("IPv6 only networks can not be floating" |
82 | c75ab92e | Christos Stavrakakis | " pools.")
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83 | ece5581b | Christos Stavrakakis | # Check that network parameters are valid
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84 | f82dfec6 | Christos Stavrakakis | subnets.validate_subnet_params(subnet, gateway, subnet6, gateway6) |
85 | ece5581b | Christos Stavrakakis | |
86 | ece5581b | Christos Stavrakakis | try:
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87 | c75ab92e | Christos Stavrakakis | fmode, flink, fmac_prefix, ftags = util.values_from_flavor(flavor) |
88 | ece5581b | Christos Stavrakakis | except EmptyPool:
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89 | ece5581b | Christos Stavrakakis | log.error("Failed to allocate resources for network of type: %s",
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90 | ece5581b | Christos Stavrakakis | flavor) |
91 | ece5581b | Christos Stavrakakis | msg = "Failed to allocate resources for network."
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92 | ece5581b | Christos Stavrakakis | raise faults.ServiceUnavailable(msg)
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93 | c75ab92e | Christos Stavrakakis | |
94 | c75ab92e | Christos Stavrakakis | mode = mode or fmode
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95 | c75ab92e | Christos Stavrakakis | link = link or flink
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96 | c75ab92e | Christos Stavrakakis | mac_prefix = mac_prefix or fmac_prefix
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97 | c75ab92e | Christos Stavrakakis | tags = tags or ftags
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98 | c75ab92e | Christos Stavrakakis | |
99 | cbf1a3f3 | Christos Stavrakakis | if (flavor == "IP_LESS_ROUTED" and |
100 | cbf1a3f3 | Christos Stavrakakis | Network.objects.filter(deleted=False, mode=mode, link=link).exists()):
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101 | cbf1a3f3 | Christos Stavrakakis | msg = "Link '%s' is already used." % link
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102 | cbf1a3f3 | Christos Stavrakakis | raise faults.BadRequest(msg)
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103 | cbf1a3f3 | Christos Stavrakakis | |
104 | ece5581b | Christos Stavrakakis | validate_mac(mac_prefix + "0:00:00:00")
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105 | ece5581b | Christos Stavrakakis | |
106 | ece5581b | Christos Stavrakakis | network = Network.objects.create( |
107 | ece5581b | Christos Stavrakakis | name=name, |
108 | a96e84cf | Christos Stavrakakis | userid=userid, |
109 | ece5581b | Christos Stavrakakis | flavor=flavor, |
110 | ece5581b | Christos Stavrakakis | mode=mode, |
111 | ece5581b | Christos Stavrakakis | link=link, |
112 | ece5581b | Christos Stavrakakis | mac_prefix=mac_prefix, |
113 | ece5581b | Christos Stavrakakis | tags=tags, |
114 | c75ab92e | Christos Stavrakakis | public=public, |
115 | 3d63d954 | Christos Stavrakakis | external_router=public, |
116 | c75ab92e | Christos Stavrakakis | floating_ip_pool=floating_ip_pool, |
117 | ece5581b | Christos Stavrakakis | action='CREATE',
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118 | ece5581b | Christos Stavrakakis | state='ACTIVE')
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119 | ece5581b | Christos Stavrakakis | |
120 | 8764d304 | Christos Stavrakakis | if subnet:
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121 | f82dfec6 | Christos Stavrakakis | subnets._create_subnet(network.id, cidr=subnet, name="", ipversion=4, |
122 | f82dfec6 | Christos Stavrakakis | gateway=gateway, dhcp=dhcp, user_id=userid) |
123 | 8764d304 | Christos Stavrakakis | if subnet6:
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124 | f82dfec6 | Christos Stavrakakis | subnets._create_subnet(network.id, cidr=subnet6, name="", ipversion=6, |
125 | f82dfec6 | Christos Stavrakakis | gateway=gateway6, dhcp=dhcp, user_id=userid) |
126 | 8764d304 | Christos Stavrakakis | |
127 | ece5581b | Christos Stavrakakis | # Issue commission to Quotaholder and accept it since at the end of
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128 | ece5581b | Christos Stavrakakis | # this transaction the Network object will be created in the DB.
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129 | ece5581b | Christos Stavrakakis | # Note: the following call does a commit!
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130 | 48f5b1bc | Christos Stavrakakis | if not public: |
131 | 48f5b1bc | Christos Stavrakakis | quotas.issue_and_accept_commission(network) |
132 | b47f167a | Christos Stavrakakis | |
133 | b47f167a | Christos Stavrakakis | if not lazy_create: |
134 | b47f167a | Christos Stavrakakis | if floating_ip_pool:
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135 | b47f167a | Christos Stavrakakis | backends = Backend.objects.filter(offline=False)
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136 | 671db71c | Christos Stavrakakis | elif backends is None: |
137 | b47f167a | Christos Stavrakakis | backends = [] |
138 | b47f167a | Christos Stavrakakis | |
139 | b47f167a | Christos Stavrakakis | for bend in backends: |
140 | b47f167a | Christos Stavrakakis | network.create_backend_network(bend) |
141 | b47f167a | Christos Stavrakakis | backend_mod.create_network(network=network, backend=bend, |
142 | b47f167a | Christos Stavrakakis | connect=True)
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143 | ece5581b | Christos Stavrakakis | return network
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144 | ece5581b | Christos Stavrakakis | |
145 | ece5581b | Christos Stavrakakis | |
146 | ece5581b | Christos Stavrakakis | @network_command("RENAME") |
147 | ece5581b | Christos Stavrakakis | def rename(network, name): |
148 | ece5581b | Christos Stavrakakis | network.name = name |
149 | ece5581b | Christos Stavrakakis | network.save() |
150 | ece5581b | Christos Stavrakakis | return network
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151 | ece5581b | Christos Stavrakakis | |
152 | ece5581b | Christos Stavrakakis | |
153 | ece5581b | Christos Stavrakakis | @network_command("DESTROY") |
154 | ece5581b | Christos Stavrakakis | def delete(network): |
155 | c82f57ad | Christos Stavrakakis | if network.nics.exists():
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156 | c82f57ad | Christos Stavrakakis | raise faults.Conflict("Can not delete network. There are ports still" |
157 | c82f57ad | Christos Stavrakakis | " configured on network network %s" % network.id)
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158 | a96e84cf | Christos Stavrakakis | if network.ips.filter(deleted=False, floating_ip=True).exists(): |
159 | ece5581b | Christos Stavrakakis | msg = "Can not delete netowrk. Network has allocated floating IPs."
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160 | a96e84cf | Christos Stavrakakis | raise faults.Conflict(msg)
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161 | ece5581b | Christos Stavrakakis | |
162 | ece5581b | Christos Stavrakakis | network.action = "DESTROY"
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163 | 3f18f035 | Christos Stavrakakis | # Mark network as drained to prevent automatic allocation of
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164 | 3f18f035 | Christos Stavrakakis | # public/floating IPs while the network is being deleted
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165 | 3f18f035 | Christos Stavrakakis | network.drained = True
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166 | ece5581b | Christos Stavrakakis | network.save() |
167 | ece5581b | Christos Stavrakakis | |
168 | ece5581b | Christos Stavrakakis | # Delete network to all backends that exists
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169 | b47f167a | Christos Stavrakakis | for bnet in network.backend_networks.exclude(operstate="DELETED"): |
170 | b47f167a | Christos Stavrakakis | backend_mod.delete_network(network, bnet.backend) |
171 | b47f167a | Christos Stavrakakis | else:
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172 | b47f167a | Christos Stavrakakis | # If network does not exist in any backend, update the network state
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173 | b47f167a | Christos Stavrakakis | backend_mod.update_network_state(network) |
174 | ece5581b | Christos Stavrakakis | return network |