root / snf-cyclades-app / synnefo / logic / networks.py @ 7b438672
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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 | e4def9d6 | Christos Stavrakakis | from django.conf import settings |
37 | ece5581b | Christos Stavrakakis | |
38 | ece5581b | Christos Stavrakakis | from snf_django.lib.api import faults |
39 | ece5581b | Christos Stavrakakis | from synnefo.api import util |
40 | ece5581b | Christos Stavrakakis | from synnefo import quotas |
41 | f82dfec6 | Christos Stavrakakis | from synnefo.db.models import Network, Backend |
42 | ece5581b | Christos Stavrakakis | from synnefo.db.utils import validate_mac |
43 | ece5581b | Christos Stavrakakis | from synnefo.db.pools import EmptyPool |
44 | 7b5263e4 | Christos Stavrakakis | from synnefo.logic import backend as backend_mod |
45 | ece5581b | Christos Stavrakakis | |
46 | ece5581b | Christos Stavrakakis | from logging import getLogger |
47 | ece5581b | Christos Stavrakakis | log = getLogger(__name__) |
48 | ece5581b | Christos Stavrakakis | |
49 | ece5581b | Christos Stavrakakis | |
50 | ece5581b | Christos Stavrakakis | def validate_network_action(network, action): |
51 | ece5581b | Christos Stavrakakis | if network.deleted:
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52 | ece5581b | Christos Stavrakakis | raise faults.BadRequest("Network has been deleted.") |
53 | ece5581b | Christos Stavrakakis | |
54 | ece5581b | Christos Stavrakakis | |
55 | ece5581b | Christos Stavrakakis | def network_command(action): |
56 | ece5581b | Christos Stavrakakis | def decorator(func): |
57 | ece5581b | Christos Stavrakakis | @wraps(func)
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58 | ece5581b | Christos Stavrakakis | @transaction.commit_on_success()
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59 | ece5581b | Christos Stavrakakis | def wrapper(network, *args, **kwargs): |
60 | ece5581b | Christos Stavrakakis | validate_network_action(network, action) |
61 | ece5581b | Christos Stavrakakis | return func(network, *args, **kwargs)
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62 | ece5581b | Christos Stavrakakis | return wrapper
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63 | ece5581b | Christos Stavrakakis | return decorator
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64 | ece5581b | Christos Stavrakakis | |
65 | ece5581b | Christos Stavrakakis | |
66 | ece5581b | Christos Stavrakakis | @transaction.commit_on_success
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67 | 3785b737 | Dionysis Grigoropoulos | def create(userid, name, flavor, link=None, mac_prefix=None, mode=None, |
68 | d193a5c8 | Christos Stavrakakis | floating_ip_pool=False, tags=None, public=False, drained=False): |
69 | ece5581b | Christos Stavrakakis | if flavor is None: |
70 | ece5581b | Christos Stavrakakis | raise faults.BadRequest("Missing request parameter 'type'") |
71 | ece5581b | Christos Stavrakakis | elif flavor not in Network.FLAVORS.keys(): |
72 | ece5581b | Christos Stavrakakis | raise faults.BadRequest("Invalid network type '%s'" % flavor) |
73 | ece5581b | Christos Stavrakakis | |
74 | c75ab92e | Christos Stavrakakis | if mac_prefix is not None and flavor == "MAC_FILTERED": |
75 | 8d5795b4 | Christos Stavrakakis | raise faults.BadRequest("Cannot override MAC_FILTERED mac-prefix") |
76 | c75ab92e | Christos Stavrakakis | if link is not None and flavor == "PHYSICAL_VLAN": |
77 | 8d5795b4 | Christos Stavrakakis | raise faults.BadRequest("Cannot override PHYSICAL_VLAN link") |
78 | c75ab92e | Christos Stavrakakis | |
79 | ece5581b | Christos Stavrakakis | try:
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80 | c75ab92e | Christos Stavrakakis | fmode, flink, fmac_prefix, ftags = util.values_from_flavor(flavor) |
81 | ece5581b | Christos Stavrakakis | except EmptyPool:
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82 | ece5581b | Christos Stavrakakis | log.error("Failed to allocate resources for network of type: %s",
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83 | ece5581b | Christos Stavrakakis | flavor) |
84 | ece5581b | Christos Stavrakakis | msg = "Failed to allocate resources for network."
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85 | ece5581b | Christos Stavrakakis | raise faults.ServiceUnavailable(msg)
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86 | c75ab92e | Christos Stavrakakis | |
87 | c75ab92e | Christos Stavrakakis | mode = mode or fmode
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88 | c75ab92e | Christos Stavrakakis | link = link or flink
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89 | c75ab92e | Christos Stavrakakis | mac_prefix = mac_prefix or fmac_prefix
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90 | c75ab92e | Christos Stavrakakis | tags = tags or ftags
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91 | c75ab92e | Christos Stavrakakis | |
92 | ece5581b | Christos Stavrakakis | validate_mac(mac_prefix + "0:00:00:00")
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93 | ece5581b | Christos Stavrakakis | |
94 | ece5581b | Christos Stavrakakis | network = Network.objects.create( |
95 | ece5581b | Christos Stavrakakis | name=name, |
96 | a96e84cf | Christos Stavrakakis | userid=userid, |
97 | ece5581b | Christos Stavrakakis | flavor=flavor, |
98 | ece5581b | Christos Stavrakakis | mode=mode, |
99 | ece5581b | Christos Stavrakakis | link=link, |
100 | ece5581b | Christos Stavrakakis | mac_prefix=mac_prefix, |
101 | ece5581b | Christos Stavrakakis | tags=tags, |
102 | c75ab92e | Christos Stavrakakis | public=public, |
103 | 3d63d954 | Christos Stavrakakis | external_router=public, |
104 | c75ab92e | Christos Stavrakakis | floating_ip_pool=floating_ip_pool, |
105 | ece5581b | Christos Stavrakakis | action='CREATE',
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106 | d193a5c8 | Christos Stavrakakis | state='ACTIVE',
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107 | d193a5c8 | Christos Stavrakakis | drained=drained) |
108 | ece5581b | Christos Stavrakakis | |
109 | e4def9d6 | Christos Stavrakakis | if link is None: |
110 | e4def9d6 | Christos Stavrakakis | network.link = "%slink-%d" % (settings.BACKEND_PREFIX_ID, network.id)
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111 | e4def9d6 | Christos Stavrakakis | network.save() |
112 | e4def9d6 | Christos Stavrakakis | |
113 | e4def9d6 | Christos Stavrakakis | if (flavor == "IP_LESS_ROUTED" and |
114 | e4def9d6 | Christos Stavrakakis | Network.objects.filter(deleted=False, mode=mode, link=link).exists()):
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115 | e4def9d6 | Christos Stavrakakis | msg = "Link '%s' is already used." % link
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116 | e4def9d6 | Christos Stavrakakis | raise faults.BadRequest(msg)
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117 | e4def9d6 | Christos Stavrakakis | |
118 | ece5581b | Christos Stavrakakis | # Issue commission to Quotaholder and accept it since at the end of
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119 | ece5581b | Christos Stavrakakis | # this transaction the Network object will be created in the DB.
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120 | ece5581b | Christos Stavrakakis | # Note: the following call does a commit!
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121 | 48f5b1bc | Christos Stavrakakis | if not public: |
122 | 48f5b1bc | Christos Stavrakakis | quotas.issue_and_accept_commission(network) |
123 | b47f167a | Christos Stavrakakis | |
124 | ece5581b | Christos Stavrakakis | return network
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125 | ece5581b | Christos Stavrakakis | |
126 | ece5581b | Christos Stavrakakis | |
127 | 7b5263e4 | Christos Stavrakakis | def create_network_in_backends(network): |
128 | 7b5263e4 | Christos Stavrakakis | job_ids = [] |
129 | 7b5263e4 | Christos Stavrakakis | for bend in Backend.objects.filter(offline=False): |
130 | 7b5263e4 | Christos Stavrakakis | network.create_backend_network(bend) |
131 | 7b5263e4 | Christos Stavrakakis | jobs = backend_mod.create_network(network=network, backend=bend, |
132 | 7b5263e4 | Christos Stavrakakis | connect=True)
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133 | 7b5263e4 | Christos Stavrakakis | job_ids.extend(jobs) |
134 | 7b5263e4 | Christos Stavrakakis | return job_ids
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135 | 7b5263e4 | Christos Stavrakakis | |
136 | 7b5263e4 | Christos Stavrakakis | |
137 | ece5581b | Christos Stavrakakis | @network_command("RENAME") |
138 | ece5581b | Christos Stavrakakis | def rename(network, name): |
139 | ece5581b | Christos Stavrakakis | network.name = name |
140 | ece5581b | Christos Stavrakakis | network.save() |
141 | ece5581b | Christos Stavrakakis | return network
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142 | ece5581b | Christos Stavrakakis | |
143 | ece5581b | Christos Stavrakakis | |
144 | ece5581b | Christos Stavrakakis | @network_command("DESTROY") |
145 | ece5581b | Christos Stavrakakis | def delete(network): |
146 | c82f57ad | Christos Stavrakakis | if network.nics.exists():
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147 | 8d5795b4 | Christos Stavrakakis | raise faults.Conflict("Cannot delete network. There are ports still" |
148 | c82f57ad | Christos Stavrakakis | " configured on network network %s" % network.id)
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149 | a96e84cf | Christos Stavrakakis | if network.ips.filter(deleted=False, floating_ip=True).exists(): |
150 | 8d5795b4 | Christos Stavrakakis | msg = "Cannot delete netowrk. Network has allocated floating IPs."
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151 | a96e84cf | Christos Stavrakakis | raise faults.Conflict(msg)
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152 | ece5581b | Christos Stavrakakis | |
153 | ece5581b | Christos Stavrakakis | network.action = "DESTROY"
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154 | 3f18f035 | Christos Stavrakakis | # Mark network as drained to prevent automatic allocation of
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155 | 3f18f035 | Christos Stavrakakis | # public/floating IPs while the network is being deleted
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156 | 6176e251 | Christos Stavrakakis | if network.public:
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157 | 6176e251 | Christos Stavrakakis | network.drained = True
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158 | ece5581b | Christos Stavrakakis | network.save() |
159 | ece5581b | Christos Stavrakakis | |
160 | ece5581b | Christos Stavrakakis | # Delete network to all backends that exists
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161 | b47f167a | Christos Stavrakakis | for bnet in network.backend_networks.exclude(operstate="DELETED"): |
162 | b47f167a | Christos Stavrakakis | backend_mod.delete_network(network, bnet.backend) |
163 | b47f167a | Christos Stavrakakis | else:
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164 | b47f167a | Christos Stavrakakis | # If network does not exist in any backend, update the network state
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165 | b47f167a | Christos Stavrakakis | backend_mod.update_network_state(network) |
166 | ece5581b | Christos Stavrakakis | return network |