root / snf-cyclades-app / synnefo / db / models.py @ 6dd70a5c
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1 | 244c552b | Giorgos Verigakis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | 48130e66 | Georgios Gousios | #
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3 | 48130e66 | Georgios Gousios | # Redistribution and use in source and binary forms, with or without
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4 | 48130e66 | Georgios Gousios | # modification, are permitted provided that the following conditions
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5 | 48130e66 | Georgios Gousios | # are met:
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6 | 48130e66 | Georgios Gousios | #
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7 | 48130e66 | Georgios Gousios | # 1. Redistributions of source code must retain the above copyright
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8 | 48130e66 | Georgios Gousios | # notice, this list of conditions and the following disclaimer.
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9 | 48130e66 | Georgios Gousios | #
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10 | 48130e66 | Georgios Gousios | # 2. Redistributions in binary form must reproduce the above copyright
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11 | 48130e66 | Georgios Gousios | # notice, this list of conditions and the following disclaimer in the
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12 | 48130e66 | Georgios Gousios | # documentation and/or other materials provided with the distribution.
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13 | 48130e66 | Georgios Gousios | #
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14 | 48130e66 | Georgios Gousios | # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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15 | 48130e66 | Georgios Gousios | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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16 | 48130e66 | Georgios Gousios | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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17 | 48130e66 | Georgios Gousios | # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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18 | 48130e66 | Georgios Gousios | # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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19 | 48130e66 | Georgios Gousios | # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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20 | 48130e66 | Georgios Gousios | # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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21 | 48130e66 | Georgios Gousios | # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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22 | 48130e66 | Georgios Gousios | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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23 | 48130e66 | Georgios Gousios | # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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24 | 48130e66 | Georgios Gousios | # SUCH DAMAGE.
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25 | 48130e66 | Georgios Gousios | #
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26 | 48130e66 | Georgios Gousios | # The views and conclusions contained in the software and documentation are
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27 | 48130e66 | Georgios Gousios | # those of the authors and should not be interpreted as representing official
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28 | 48130e66 | Georgios Gousios | # policies, either expressed or implied, of GRNET S.A.
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29 | 48130e66 | Georgios Gousios | |
30 | c4e55622 | Christos Stavrakakis | import datetime |
31 | c4e55622 | Christos Stavrakakis | |
32 | 9dbe70f8 | Markos Gogoulos | from django.conf import settings |
33 | 17935f41 | Vassilios Karakoidas | from django.db import models |
34 | aed9b901 | Christos Stavrakakis | from django.db import IntegrityError |
35 | aed9b901 | Christos Stavrakakis | |
36 | aed9b901 | Christos Stavrakakis | from hashlib import sha1 |
37 | aed9b901 | Christos Stavrakakis | from synnefo.api.faults import ServiceUnavailable |
38 | aed9b901 | Christos Stavrakakis | from synnefo.util.rapi import GanetiRapiClient |
39 | e6a42a96 | Christos Stavrakakis | from synnefo import settings as snf_settings |
40 | 30e0ed74 | Christos Stavrakakis | from aes_encrypt import encrypt_db_charfield, decrypt_db_charfield |
41 | aed9b901 | Christos Stavrakakis | |
42 | 30e0ed74 | Christos Stavrakakis | BACKEND_CLIENTS = {} # {hash:Backend client}
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43 | 30e0ed74 | Christos Stavrakakis | BACKEND_HASHES = {} # {Backend.id:hash}
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44 | aed9b901 | Christos Stavrakakis | |
45 | aed9b901 | Christos Stavrakakis | |
46 | aed9b901 | Christos Stavrakakis | def get_client(hash, backend): |
47 | aed9b901 | Christos Stavrakakis | """Get a cached backend client or create a new one.
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48 | aed9b901 | Christos Stavrakakis |
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49 | aed9b901 | Christos Stavrakakis | @param hash: The hash of the backend
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50 | aed9b901 | Christos Stavrakakis | @param backend: Either a backend object or backend ID
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51 | aed9b901 | Christos Stavrakakis | """
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52 | aed9b901 | Christos Stavrakakis | |
53 | aed9b901 | Christos Stavrakakis | if backend is None: |
54 | aed9b901 | Christos Stavrakakis | raise Exception("Backend is None. Cannot create a client.") |
55 | aed9b901 | Christos Stavrakakis | |
56 | aed9b901 | Christos Stavrakakis | if hash in BACKEND_CLIENTS: |
57 | aed9b901 | Christos Stavrakakis | # Return cached client
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58 | aed9b901 | Christos Stavrakakis | return BACKEND_CLIENTS[hash] |
59 | aed9b901 | Christos Stavrakakis | |
60 | aed9b901 | Christos Stavrakakis | # Always get a new instance to ensure latest credentials
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61 | aed9b901 | Christos Stavrakakis | if isinstance(backend, Backend): |
62 | aed9b901 | Christos Stavrakakis | backend = backend.id |
63 | aed9b901 | Christos Stavrakakis | |
64 | 30e0ed74 | Christos Stavrakakis | backend = Backend.objects.get(id=backend) |
65 | 30e0ed74 | Christos Stavrakakis | hash = backend.hash |
66 | 30e0ed74 | Christos Stavrakakis | clustername = backend.clustername |
67 | 30e0ed74 | Christos Stavrakakis | port = backend.port |
68 | 30e0ed74 | Christos Stavrakakis | user = backend.username |
69 | 30e0ed74 | Christos Stavrakakis | password = backend.password |
70 | aed9b901 | Christos Stavrakakis | |
71 | aed9b901 | Christos Stavrakakis | # Check client for updated hash
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72 | aed9b901 | Christos Stavrakakis | if hash in BACKEND_CLIENTS: |
73 | aed9b901 | Christos Stavrakakis | return BACKEND_CLIENTS[hash] |
74 | aed9b901 | Christos Stavrakakis | |
75 | aed9b901 | Christos Stavrakakis | # Delete old version of the client
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76 | aed9b901 | Christos Stavrakakis | if backend in BACKEND_HASHES: |
77 | aed9b901 | Christos Stavrakakis | del BACKEND_CLIENTS[BACKEND_HASHES[backend]]
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78 | aed9b901 | Christos Stavrakakis | |
79 | aed9b901 | Christos Stavrakakis | # Create the new client
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80 | aed9b901 | Christos Stavrakakis | client = GanetiRapiClient(clustername, port, user, password) |
81 | aed9b901 | Christos Stavrakakis | |
82 | aed9b901 | Christos Stavrakakis | # Store the client and the hash
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83 | aed9b901 | Christos Stavrakakis | BACKEND_CLIENTS[hash] = client
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84 | aed9b901 | Christos Stavrakakis | BACKEND_HASHES[backend] = hash
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85 | aed9b901 | Christos Stavrakakis | |
86 | aed9b901 | Christos Stavrakakis | return client
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87 | aed9b901 | Christos Stavrakakis | |
88 | aed9b901 | Christos Stavrakakis | |
89 | aed9b901 | Christos Stavrakakis | def clear_client_cache(): |
90 | aed9b901 | Christos Stavrakakis | BACKEND_CLIENTS.clear() |
91 | aed9b901 | Christos Stavrakakis | BACKEND_HASHES.clear() |
92 | 7b7f9205 | Vassilios Karakoidas | |
93 | f5ad2956 | Markos Gogoulos | |
94 | e7164ebc | Vassilios Karakoidas | class Flavor(models.Model): |
95 | 13b3c5ff | Vassilios Karakoidas | cpu = models.IntegerField('Number of CPUs', default=0) |
96 | c909cbbd | Giorgos Verigakis | ram = models.IntegerField('RAM size in MiB', default=0) |
97 | c909cbbd | Giorgos Verigakis | disk = models.IntegerField('Disk size in GiB', default=0) |
98 | c909cbbd | Giorgos Verigakis | disk_template = models.CharField('Disk template', max_length=32, |
99 | 9ff7ca6f | Giorgos Verigakis | default=settings.DEFAULT_GANETI_DISK_TEMPLATE) |
100 | 2c60cbef | Giorgos Verigakis | deleted = models.BooleanField('Deleted', default=False) |
101 | ce55f211 | Kostas Papadimitriou | |
102 | be7b8d37 | Vassilios Karakoidas | class Meta: |
103 | dcfc6c2d | Vangelis Koukis | verbose_name = u'Virtual machine flavor'
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104 | b1af40e2 | Giorgos Verigakis | unique_together = ('cpu', 'ram', 'disk', 'disk_template') |
105 | ce55f211 | Kostas Papadimitriou | |
106 | 9ff7ca6f | Giorgos Verigakis | @property
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107 | 9ff7ca6f | Giorgos Verigakis | def name(self): |
108 | f0f4edac | Vassilios Karakoidas | """Returns flavor name (generated)"""
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109 | d08a5f6f | Vangelis Koukis | return u'C%dR%dD%d' % (self.cpu, self.ram, self.disk) |
110 | ce55f211 | Kostas Papadimitriou | |
111 | 46547e14 | Faidon Liambotis | def __unicode__(self): |
112 | 46547e14 | Faidon Liambotis | return self.name |
113 | 452d2391 | Vassilios Karakoidas | |
114 | 46547e14 | Faidon Liambotis | |
115 | aed9b901 | Christos Stavrakakis | class BackendQuerySet(models.query.QuerySet): |
116 | aed9b901 | Christos Stavrakakis | def delete(self): |
117 | aed9b901 | Christos Stavrakakis | for backend in self._clone(): |
118 | aed9b901 | Christos Stavrakakis | backend.delete() |
119 | aed9b901 | Christos Stavrakakis | |
120 | 30e0ed74 | Christos Stavrakakis | |
121 | aed9b901 | Christos Stavrakakis | class ProtectDeleteManager(models.Manager): |
122 | aed9b901 | Christos Stavrakakis | def get_query_set(self): |
123 | aed9b901 | Christos Stavrakakis | return BackendQuerySet(self.model, using=self._db) |
124 | aed9b901 | Christos Stavrakakis | |
125 | aed9b901 | Christos Stavrakakis | |
126 | aed9b901 | Christos Stavrakakis | class Backend(models.Model): |
127 | aed9b901 | Christos Stavrakakis | clustername = models.CharField('Cluster Name', max_length=128, unique=True) |
128 | aed9b901 | Christos Stavrakakis | port = models.PositiveIntegerField('Port', default=5080) |
129 | aed9b901 | Christos Stavrakakis | username = models.CharField('Username', max_length=64, blank=True, |
130 | aed9b901 | Christos Stavrakakis | null=True)
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131 | 30e0ed74 | Christos Stavrakakis | password_hash = models.CharField('Password', max_length=64, blank=True, |
132 | aed9b901 | Christos Stavrakakis | null=True)
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133 | aed9b901 | Christos Stavrakakis | # Sha1 is up to 40 characters long
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134 | aed9b901 | Christos Stavrakakis | hash = models.CharField('Hash', max_length=40, editable=False, null=False) |
135 | aed9b901 | Christos Stavrakakis | drained = models.BooleanField('Drained', default=False, null=False) |
136 | aed9b901 | Christos Stavrakakis | offline = models.BooleanField('Offline', default=False, null=False) |
137 | aed9b901 | Christos Stavrakakis | # Last refresh of backend resources
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138 | aed9b901 | Christos Stavrakakis | updated = models.DateTimeField(auto_now_add=True)
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139 | aed9b901 | Christos Stavrakakis | # Backend resources
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140 | aed9b901 | Christos Stavrakakis | mfree = models.PositiveIntegerField('Free Memory', default=0, null=False) |
141 | aed9b901 | Christos Stavrakakis | mtotal = models.PositiveIntegerField('Total Memory', default=0, null=False) |
142 | aed9b901 | Christos Stavrakakis | dfree = models.PositiveIntegerField('Free Disk', default=0, null=False) |
143 | aed9b901 | Christos Stavrakakis | dtotal = models.PositiveIntegerField('Total Disk', default=0, null=False) |
144 | aed9b901 | Christos Stavrakakis | pinst_cnt = models.PositiveIntegerField('Primary Instances', default=0, |
145 | aed9b901 | Christos Stavrakakis | null=False)
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146 | aed9b901 | Christos Stavrakakis | ctotal = models.PositiveIntegerField('Total number of logical processors',
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147 | aed9b901 | Christos Stavrakakis | default=0, null=False) |
148 | aed9b901 | Christos Stavrakakis | # Custom object manager to protect from cascade delete
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149 | aed9b901 | Christos Stavrakakis | objects = ProtectDeleteManager() |
150 | aed9b901 | Christos Stavrakakis | |
151 | aed9b901 | Christos Stavrakakis | class Meta: |
152 | aed9b901 | Christos Stavrakakis | verbose_name = u'Backend'
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153 | aed9b901 | Christos Stavrakakis | ordering = ["clustername"]
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154 | aed9b901 | Christos Stavrakakis | |
155 | aed9b901 | Christos Stavrakakis | def __unicode__(self): |
156 | aed9b901 | Christos Stavrakakis | return self.clustername |
157 | aed9b901 | Christos Stavrakakis | |
158 | aed9b901 | Christos Stavrakakis | @property
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159 | aed9b901 | Christos Stavrakakis | def backend_id(self): |
160 | aed9b901 | Christos Stavrakakis | return self.id |
161 | aed9b901 | Christos Stavrakakis | |
162 | aed9b901 | Christos Stavrakakis | @property
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163 | aed9b901 | Christos Stavrakakis | def client(self): |
164 | aed9b901 | Christos Stavrakakis | """Get or create a client. """
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165 | aed9b901 | Christos Stavrakakis | if not self.offline: |
166 | aed9b901 | Christos Stavrakakis | return get_client(self.hash, self) |
167 | aed9b901 | Christos Stavrakakis | else:
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168 | aed9b901 | Christos Stavrakakis | raise ServiceUnavailable
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169 | aed9b901 | Christos Stavrakakis | |
170 | aed9b901 | Christos Stavrakakis | def create_hash(self): |
171 | aed9b901 | Christos Stavrakakis | """Create a hash for this backend. """
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172 | aed9b901 | Christos Stavrakakis | return sha1('%s%s%s%s' % \ |
173 | aed9b901 | Christos Stavrakakis | (self.clustername, self.port, self.username, self.password)) \ |
174 | aed9b901 | Christos Stavrakakis | .hexdigest() |
175 | aed9b901 | Christos Stavrakakis | |
176 | 30e0ed74 | Christos Stavrakakis | @property
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177 | 30e0ed74 | Christos Stavrakakis | def password(self): |
178 | 30e0ed74 | Christos Stavrakakis | return decrypt_db_charfield(self.password_hash) |
179 | 30e0ed74 | Christos Stavrakakis | |
180 | 30e0ed74 | Christos Stavrakakis | @password.setter
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181 | 30e0ed74 | Christos Stavrakakis | def password(self, value): |
182 | 30e0ed74 | Christos Stavrakakis | self.password_hash = encrypt_db_charfield(value)
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183 | 30e0ed74 | Christos Stavrakakis | |
184 | aed9b901 | Christos Stavrakakis | def save(self, *args, **kwargs): |
185 | aed9b901 | Christos Stavrakakis | # Create a new hash each time a Backend is saved
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186 | aed9b901 | Christos Stavrakakis | old_hash = self.hash
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187 | aed9b901 | Christos Stavrakakis | self.hash = self.create_hash() |
188 | aed9b901 | Christos Stavrakakis | super(Backend, self).save(*args, **kwargs) |
189 | aed9b901 | Christos Stavrakakis | if self.hash != old_hash: |
190 | aed9b901 | Christos Stavrakakis | # Populate the new hash to the new instances
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191 | aed9b901 | Christos Stavrakakis | self.virtual_machines.filter(deleted=False).update(backend_hash=self.hash) |
192 | aed9b901 | Christos Stavrakakis | |
193 | aed9b901 | Christos Stavrakakis | def delete(self, *args, **kwargs): |
194 | aed9b901 | Christos Stavrakakis | # Integrity Error if non-deleted VMs are associated with Backend
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195 | aed9b901 | Christos Stavrakakis | if self.virtual_machines.filter(deleted=False).count(): |
196 | aed9b901 | Christos Stavrakakis | raise IntegrityError("Non-deleted virtual machines are associated " |
197 | aed9b901 | Christos Stavrakakis | "with backend: %s" % self) |
198 | aed9b901 | Christos Stavrakakis | else:
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199 | aed9b901 | Christos Stavrakakis | # ON_DELETE = SET NULL
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200 | fd65ab41 | Christos Stavrakakis | self.virtual_machines.all().backend = None |
201 | aed9b901 | Christos Stavrakakis | super(Backend, self).delete(*args, **kwargs) |
202 | aed9b901 | Christos Stavrakakis | |
203 | aed9b901 | Christos Stavrakakis | |
204 | fd65ab41 | Christos Stavrakakis | # A backend job may be in one of the following possible states
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205 | fd65ab41 | Christos Stavrakakis | BACKEND_STATUSES = ( |
206 | fd65ab41 | Christos Stavrakakis | ('queued', 'request queued'), |
207 | fd65ab41 | Christos Stavrakakis | ('waiting', 'request waiting for locks'), |
208 | fd65ab41 | Christos Stavrakakis | ('canceling', 'request being canceled'), |
209 | fd65ab41 | Christos Stavrakakis | ('running', 'request running'), |
210 | fd65ab41 | Christos Stavrakakis | ('canceled', 'request canceled'), |
211 | fd65ab41 | Christos Stavrakakis | ('success', 'request completed successfully'), |
212 | fd65ab41 | Christos Stavrakakis | ('error', 'request returned error') |
213 | fd65ab41 | Christos Stavrakakis | ) |
214 | fd65ab41 | Christos Stavrakakis | |
215 | fd65ab41 | Christos Stavrakakis | |
216 | 07f3219d | Vassilios Karakoidas | class VirtualMachine(models.Model): |
217 | c92af313 | Vangelis Koukis | # The list of possible actions for a VM
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218 | d08a5f6f | Vangelis Koukis | ACTIONS = ( |
219 | d08a5f6f | Vangelis Koukis | ('CREATE', 'Create VM'), |
220 | d08a5f6f | Vangelis Koukis | ('START', 'Start VM'), |
221 | d08a5f6f | Vangelis Koukis | ('STOP', 'Shutdown VM'), |
222 | d08a5f6f | Vangelis Koukis | ('SUSPEND', 'Admin Suspend VM'), |
223 | d08a5f6f | Vangelis Koukis | ('REBOOT', 'Reboot VM'), |
224 | d08a5f6f | Vangelis Koukis | ('DESTROY', 'Destroy VM') |
225 | d08a5f6f | Vangelis Koukis | ) |
226 | ce55f211 | Kostas Papadimitriou | |
227 | c92af313 | Vangelis Koukis | # The internal operating state of a VM
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228 | d08a5f6f | Vangelis Koukis | OPER_STATES = ( |
229 | d08a5f6f | Vangelis Koukis | ('BUILD', 'Queued for creation'), |
230 | d08a5f6f | Vangelis Koukis | ('ERROR', 'Creation failed'), |
231 | d08a5f6f | Vangelis Koukis | ('STOPPED', 'Stopped'), |
232 | d08a5f6f | Vangelis Koukis | ('STARTED', 'Started'), |
233 | d08a5f6f | Vangelis Koukis | ('DESTROYED', 'Destroyed') |
234 | d08a5f6f | Vangelis Koukis | ) |
235 | ce55f211 | Kostas Papadimitriou | |
236 | c92af313 | Vangelis Koukis | # The list of possible operations on the backend
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237 | d08a5f6f | Vangelis Koukis | BACKEND_OPCODES = ( |
238 | d08a5f6f | Vangelis Koukis | ('OP_INSTANCE_CREATE', 'Create Instance'), |
239 | d08a5f6f | Vangelis Koukis | ('OP_INSTANCE_REMOVE', 'Remove Instance'), |
240 | d08a5f6f | Vangelis Koukis | ('OP_INSTANCE_STARTUP', 'Startup Instance'), |
241 | d08a5f6f | Vangelis Koukis | ('OP_INSTANCE_SHUTDOWN', 'Shutdown Instance'), |
242 | 26fef2b9 | Vangelis Koukis | ('OP_INSTANCE_REBOOT', 'Reboot Instance'), |
243 | 26fef2b9 | Vangelis Koukis | |
244 | 26fef2b9 | Vangelis Koukis | # These are listed here for completeness,
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245 | 26fef2b9 | Vangelis Koukis | # and are ignored for the time being
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246 | 26fef2b9 | Vangelis Koukis | ('OP_INSTANCE_SET_PARAMS', 'Set Instance Parameters'), |
247 | 26fef2b9 | Vangelis Koukis | ('OP_INSTANCE_QUERY_DATA', 'Query Instance Data'), |
248 | 21d8adbf | Vangelis Koukis | ('OP_INSTANCE_REINSTALL', 'Reinstall Instance'), |
249 | 21d8adbf | Vangelis Koukis | ('OP_INSTANCE_ACTIVATE_DISKS', 'Activate Disks'), |
250 | 21d8adbf | Vangelis Koukis | ('OP_INSTANCE_DEACTIVATE_DISKS', 'Deactivate Disks'), |
251 | 21d8adbf | Vangelis Koukis | ('OP_INSTANCE_REPLACE_DISKS', 'Replace Disks'), |
252 | 21d8adbf | Vangelis Koukis | ('OP_INSTANCE_MIGRATE', 'Migrate Instance'), |
253 | 21d8adbf | Vangelis Koukis | ('OP_INSTANCE_CONSOLE', 'Get Instance Console'), |
254 | 41303ed0 | Vangelis Koukis | ('OP_INSTANCE_RECREATE_DISKS', 'Recreate Disks'), |
255 | 41303ed0 | Vangelis Koukis | ('OP_INSTANCE_FAILOVER', 'Failover Instance') |
256 | d08a5f6f | Vangelis Koukis | ) |
257 | ce55f211 | Kostas Papadimitriou | |
258 | d08a5f6f | Vangelis Koukis | |
259 | d08a5f6f | Vangelis Koukis | # The operating state of a VM,
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260 | d08a5f6f | Vangelis Koukis | # upon the successful completion of a backend operation.
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261 | 21d8adbf | Vangelis Koukis | # IMPORTANT: Make sure all keys have a corresponding
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262 | 21d8adbf | Vangelis Koukis | # entry in BACKEND_OPCODES if you update this field, see #1035, #1111.
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263 | d08a5f6f | Vangelis Koukis | OPER_STATE_FROM_OPCODE = { |
264 | d08a5f6f | Vangelis Koukis | 'OP_INSTANCE_CREATE': 'STARTED', |
265 | d08a5f6f | Vangelis Koukis | 'OP_INSTANCE_REMOVE': 'DESTROYED', |
266 | d08a5f6f | Vangelis Koukis | 'OP_INSTANCE_STARTUP': 'STARTED', |
267 | d08a5f6f | Vangelis Koukis | 'OP_INSTANCE_SHUTDOWN': 'STOPPED', |
268 | 26fef2b9 | Vangelis Koukis | 'OP_INSTANCE_REBOOT': 'STARTED', |
269 | 26fef2b9 | Vangelis Koukis | 'OP_INSTANCE_SET_PARAMS': None, |
270 | 8490bf84 | Georgios Gousios | 'OP_INSTANCE_QUERY_DATA': None, |
271 | 1bce82c0 | Christos Stavrakakis | 'OP_INSTANCE_REINSTALL': None, |
272 | 1bce82c0 | Christos Stavrakakis | 'OP_INSTANCE_ACTIVATE_DISKS': None, |
273 | 8490bf84 | Georgios Gousios | 'OP_INSTANCE_DEACTIVATE_DISKS': None, |
274 | 1bce82c0 | Christos Stavrakakis | 'OP_INSTANCE_REPLACE_DISKS': None, |
275 | 8490bf84 | Georgios Gousios | 'OP_INSTANCE_MIGRATE': None, |
276 | 8490bf84 | Georgios Gousios | 'OP_INSTANCE_CONSOLE': None, |
277 | 41303ed0 | Vangelis Koukis | 'OP_INSTANCE_RECREATE_DISKS': None, |
278 | 41303ed0 | Vangelis Koukis | 'OP_INSTANCE_FAILOVER': None |
279 | d08a5f6f | Vangelis Koukis | } |
280 | d08a5f6f | Vangelis Koukis | |
281 | c92af313 | Vangelis Koukis | # This dictionary contains the correspondence between
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282 | c92af313 | Vangelis Koukis | # internal operating states and Server States as defined
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283 | c92af313 | Vangelis Koukis | # by the Rackspace API.
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284 | d08a5f6f | Vangelis Koukis | RSAPI_STATE_FROM_OPER_STATE = { |
285 | d08a5f6f | Vangelis Koukis | "BUILD": "BUILD", |
286 | d08a5f6f | Vangelis Koukis | "ERROR": "ERROR", |
287 | d08a5f6f | Vangelis Koukis | "STOPPED": "STOPPED", |
288 | d08a5f6f | Vangelis Koukis | "STARTED": "ACTIVE", |
289 | d08a5f6f | Vangelis Koukis | "DESTROYED": "DELETED" |
290 | d08a5f6f | Vangelis Koukis | } |
291 | d08a5f6f | Vangelis Koukis | |
292 | 4daac449 | Vassilios Karakoidas | name = models.CharField('Virtual Machine Name', max_length=255) |
293 | 244c552b | Giorgos Verigakis | userid = models.CharField('User ID of the owner', max_length=100) |
294 | aed9b901 | Christos Stavrakakis | backend = models.ForeignKey(Backend, null=True,
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295 | aed9b901 | Christos Stavrakakis | related_name="virtual_machines",)
|
296 | aed9b901 | Christos Stavrakakis | backend_hash = models.CharField(max_length=128, null=True, editable=False) |
297 | d174b105 | Vassilios Karakoidas | created = models.DateTimeField(auto_now_add=True)
|
298 | d174b105 | Vassilios Karakoidas | updated = models.DateTimeField(auto_now=True)
|
299 | 936afb7b | Giorgos Verigakis | imageid = models.CharField(max_length=100, null=False) |
300 | 22571df6 | Vassilios Karakoidas | hostid = models.CharField(max_length=100)
|
301 | 46547e14 | Faidon Liambotis | flavor = models.ForeignKey(Flavor) |
302 | c750d1d6 | Vangelis Koukis | deleted = models.BooleanField('Deleted', default=False) |
303 | 9ff7ca6f | Giorgos Verigakis | suspended = models.BooleanField('Administratively Suspended',
|
304 | 244c552b | Giorgos Verigakis | default=False)
|
305 | d08a5f6f | Vangelis Koukis | |
306 | ce55f211 | Kostas Papadimitriou | # VM State
|
307 | 52194743 | Vangelis Koukis | # The following fields are volatile data, in the sense
|
308 | 52194743 | Vangelis Koukis | # that they need not be persistent in the DB, but rather
|
309 | 52194743 | Vangelis Koukis | # get generated at runtime by quering Ganeti and applying
|
310 | 52194743 | Vangelis Koukis | # updates received from Ganeti.
|
311 | ce55f211 | Kostas Papadimitriou | |
312 | 73b2b65e | Vassilios Karakoidas | # In the future they could be moved to a separate caching layer
|
313 | 73b2b65e | Vassilios Karakoidas | # and removed from the database.
|
314 | 73b2b65e | Vassilios Karakoidas | # [vkoukis] after discussion with [faidon].
|
315 | dfd19c2d | Vassilios Karakoidas | action = models.CharField(choices=ACTIONS, max_length=30, null=True) |
316 | dfd19c2d | Vassilios Karakoidas | operstate = models.CharField(choices=OPER_STATES, max_length=30, null=True) |
317 | dfd19c2d | Vassilios Karakoidas | backendjobid = models.PositiveIntegerField(null=True)
|
318 | f533f224 | Vangelis Koukis | backendopcode = models.CharField(choices=BACKEND_OPCODES, max_length=30,
|
319 | aed9b901 | Christos Stavrakakis | null=True)
|
320 | 9ff7ca6f | Giorgos Verigakis | backendjobstatus = models.CharField(choices=BACKEND_STATUSES, |
321 | aed9b901 | Christos Stavrakakis | max_length=30, null=True) |
322 | dfd19c2d | Vassilios Karakoidas | backendlogmsg = models.TextField(null=True)
|
323 | 19da4325 | Vangelis Koukis | buildpercentage = models.IntegerField(default=0)
|
324 | c4e55622 | Christos Stavrakakis | backendtime = models.DateTimeField(default=datetime.datetime.min) |
325 | 9068cd85 | Georgios Gousios | |
326 | aed9b901 | Christos Stavrakakis | @property
|
327 | aed9b901 | Christos Stavrakakis | def client(self): |
328 | f5b4f2a3 | Christos Stavrakakis | if self.backend and not self.backend.offline: |
329 | aed9b901 | Christos Stavrakakis | return get_client(self.backend_hash, self.backend_id) |
330 | aed9b901 | Christos Stavrakakis | else:
|
331 | aed9b901 | Christos Stavrakakis | raise ServiceUnavailable
|
332 | aed9b901 | Christos Stavrakakis | |
333 | d08a5f6f | Vangelis Koukis | # Error classes
|
334 | d08a5f6f | Vangelis Koukis | class InvalidBackendIdError(Exception): |
335 | 1bce82c0 | Christos Stavrakakis | def __init__(self, value): |
336 | d08a5f6f | Vangelis Koukis | self.value = value
|
337 | 1bce82c0 | Christos Stavrakakis | |
338 | 1bce82c0 | Christos Stavrakakis | def __str__(self): |
339 | d08a5f6f | Vangelis Koukis | return repr(self.value) |
340 | d08a5f6f | Vangelis Koukis | |
341 | d08a5f6f | Vangelis Koukis | class InvalidBackendMsgError(Exception): |
342 | 1bce82c0 | Christos Stavrakakis | def __init__(self, opcode, status): |
343 | d08a5f6f | Vangelis Koukis | self.opcode = opcode
|
344 | d08a5f6f | Vangelis Koukis | self.status = status
|
345 | 1bce82c0 | Christos Stavrakakis | |
346 | 1bce82c0 | Christos Stavrakakis | def __str__(self): |
347 | 9ff7ca6f | Giorgos Verigakis | return repr('<opcode: %s, status: %s>' % (self.opcode, |
348 | 1bce82c0 | Christos Stavrakakis | self.status))
|
349 | d08a5f6f | Vangelis Koukis | |
350 | d08a5f6f | Vangelis Koukis | class InvalidActionError(Exception): |
351 | 1bce82c0 | Christos Stavrakakis | def __init__(self, action): |
352 | c92af313 | Vangelis Koukis | self._action = action
|
353 | 1bce82c0 | Christos Stavrakakis | |
354 | 1bce82c0 | Christos Stavrakakis | def __str__(self): |
355 | 78d9b6b7 | Vangelis Koukis | return repr(str(self._action)) |
356 | ce55f211 | Kostas Papadimitriou | |
357 | 5231a38a | Giorgos Verigakis | class DeletedError(Exception): |
358 | 5231a38a | Giorgos Verigakis | pass
|
359 | ce55f211 | Kostas Papadimitriou | |
360 | 5231a38a | Giorgos Verigakis | class BuildingError(Exception): |
361 | 5231a38a | Giorgos Verigakis | pass
|
362 | ce55f211 | Kostas Papadimitriou | |
363 | 3846dfd0 | Vassilios Karakoidas | def __init__(self, *args, **kw): |
364 | d08a5f6f | Vangelis Koukis | """Initialize state for just created VM instances."""
|
365 | d08a5f6f | Vangelis Koukis | super(VirtualMachine, self).__init__(*args, **kw) |
366 | bc9c872b | Vangelis Koukis | # This gets called BEFORE an instance gets save()d for
|
367 | bc9c872b | Vangelis Koukis | # the first time.
|
368 | ce55f211 | Kostas Papadimitriou | if not self.pk: |
369 | dfd19c2d | Vassilios Karakoidas | self.action = None |
370 | dfd19c2d | Vassilios Karakoidas | self.backendjobid = None |
371 | dfd19c2d | Vassilios Karakoidas | self.backendjobstatus = None |
372 | dfd19c2d | Vassilios Karakoidas | self.backendopcode = None |
373 | dfd19c2d | Vassilios Karakoidas | self.backendlogmsg = None |
374 | dfd19c2d | Vassilios Karakoidas | self.operstate = 'BUILD' |
375 | ce55f211 | Kostas Papadimitriou | |
376 | aed9b901 | Christos Stavrakakis | def save(self, *args, **kwargs): |
377 | aed9b901 | Christos Stavrakakis | # Store hash for first time saved vm
|
378 | aed9b901 | Christos Stavrakakis | if (self.id is None or self.backend_hash == '') and self.backend: |
379 | aed9b901 | Christos Stavrakakis | self.backend_hash = self.backend.hash |
380 | aed9b901 | Christos Stavrakakis | super(VirtualMachine, self).save(*args, **kwargs) |
381 | aed9b901 | Christos Stavrakakis | |
382 | 9ff7ca6f | Giorgos Verigakis | @property
|
383 | 924d8085 | Christos Stavrakakis | def backend_vm_id(self): |
384 | 224b5e19 | Markos Gogoulos | """Returns the backend id for this VM by prepending backend-prefix."""
|
385 | 76ba77c1 | Vangelis Koukis | if not self.id: |
386 | 76ba77c1 | Vangelis Koukis | raise VirtualMachine.InvalidBackendIdError("self.id is None") |
387 | d30f29aa | Christos Stavrakakis | return "%s%s" % (settings.BACKEND_PREFIX_ID, str(self.id)) |
388 | ce55f211 | Kostas Papadimitriou | |
389 | d08a5f6f | Vangelis Koukis | class Meta: |
390 | d08a5f6f | Vangelis Koukis | verbose_name = u'Virtual machine instance'
|
391 | d08a5f6f | Vangelis Koukis | get_latest_by = 'created'
|
392 | ce55f211 | Kostas Papadimitriou | |
393 | d08a5f6f | Vangelis Koukis | def __unicode__(self): |
394 | d08a5f6f | Vangelis Koukis | return self.name |
395 | d08a5f6f | Vangelis Koukis | |
396 | 4ffb82dc | Vassilios Karakoidas | |
397 | be7b8d37 | Vassilios Karakoidas | class VirtualMachineMetadata(models.Model): |
398 | be7b8d37 | Vassilios Karakoidas | meta_key = models.CharField(max_length=50)
|
399 | be7b8d37 | Vassilios Karakoidas | meta_value = models.CharField(max_length=500)
|
400 | 7cc3c7d9 | Giorgos Verigakis | vm = models.ForeignKey(VirtualMachine, related_name='metadata')
|
401 | ce55f211 | Kostas Papadimitriou | |
402 | be7b8d37 | Vassilios Karakoidas | class Meta: |
403 | 1bd24df6 | Giorgos Verigakis | unique_together = (('meta_key', 'vm'),) |
404 | dcfc6c2d | Vangelis Koukis | verbose_name = u'Key-value pair of metadata for a VM.'
|
405 | ce55f211 | Kostas Papadimitriou | |
406 | be7b8d37 | Vassilios Karakoidas | def __unicode__(self): |
407 | 9ff7ca6f | Giorgos Verigakis | return u'%s: %s' % (self.meta_key, self.meta_value) |
408 | be7b8d37 | Vassilios Karakoidas | |
409 | be7b8d37 | Vassilios Karakoidas | |
410 | e6a42a96 | Christos Stavrakakis | |
411 | 0269afd6 | Giorgos Verigakis | class Network(models.Model): |
412 | e6a42a96 | Christos Stavrakakis | OPER_STATES = ( |
413 | e6a42a96 | Christos Stavrakakis | ('PENDING', 'Pending'), |
414 | f533f224 | Vangelis Koukis | ('ACTIVE', 'Active'), |
415 | e6a42a96 | Christos Stavrakakis | ('DELETED', 'Deleted'), |
416 | e6a42a96 | Christos Stavrakakis | ('ERROR', 'Error') |
417 | e6a42a96 | Christos Stavrakakis | ) |
418 | e6a42a96 | Christos Stavrakakis | |
419 | e6a42a96 | Christos Stavrakakis | ACTIONS = ( |
420 | e6a42a96 | Christos Stavrakakis | ('CREATE', 'Create Network'), |
421 | e6a42a96 | Christos Stavrakakis | ('DESTROY', 'Destroy Network'), |
422 | e6a42a96 | Christos Stavrakakis | ) |
423 | e6a42a96 | Christos Stavrakakis | |
424 | e6a42a96 | Christos Stavrakakis | RSAPI_STATE_FROM_OPER_STATE = { |
425 | e6a42a96 | Christos Stavrakakis | 'PENDING': 'PENDING', |
426 | e6a42a96 | Christos Stavrakakis | 'ACTIVE': 'ACTIVE', |
427 | e6a42a96 | Christos Stavrakakis | 'DELETED': 'DELETED', |
428 | e6a42a96 | Christos Stavrakakis | 'ERROR': 'ERROR' |
429 | e6a42a96 | Christos Stavrakakis | } |
430 | e6a42a96 | Christos Stavrakakis | |
431 | e6a42a96 | Christos Stavrakakis | NETWORK_TYPES = ( |
432 | e6a42a96 | Christos Stavrakakis | ('PUBLIC_ROUTED', 'Public routed network'), |
433 | 839e2bd0 | Christos Stavrakakis | ('PRIVATE_PHYSICAL_VLAN', 'Private vlan network'), |
434 | 839e2bd0 | Christos Stavrakakis | ('PRIVATE_MAC_FILTERED', 'Private network with mac-filtering'), |
435 | 839e2bd0 | Christos Stavrakakis | ('CUSTOM_ROUTED', 'Custom routed network'), |
436 | 839e2bd0 | Christos Stavrakakis | ('CUSTOM_BRIDGED', 'Custom bridged network') |
437 | f533f224 | Vangelis Koukis | ) |
438 | ce55f211 | Kostas Papadimitriou | |
439 | e6a42a96 | Christos Stavrakakis | |
440 | e6a42a96 | Christos Stavrakakis | name = models.CharField('Network Name', max_length=128) |
441 | e6a42a96 | Christos Stavrakakis | userid = models.CharField('User ID of the owner', max_length=128, null=True) |
442 | e6a42a96 | Christos Stavrakakis | subnet = models.CharField('Subnet', max_length=32, default='10.0.0.0/24') |
443 | cc3f266e | Christos Stavrakakis | subnet6 = models.CharField('IPv6 Subnet', max_length=64, null=True) |
444 | e6a42a96 | Christos Stavrakakis | gateway = models.CharField('Gateway', max_length=32, null=True) |
445 | cc3f266e | Christos Stavrakakis | gateway6 = models.CharField('IPv6 Gateway', max_length=64, null=True) |
446 | e6a42a96 | Christos Stavrakakis | dhcp = models.BooleanField('DHCP', default=True) |
447 | 839e2bd0 | Christos Stavrakakis | type = models.CharField(choices=NETWORK_TYPES, max_length=50,
|
448 | 839e2bd0 | Christos Stavrakakis | default='PRIVATE_PHYSICAL_VLAN')
|
449 | e6a42a96 | Christos Stavrakakis | link = models.CharField('Network Link', max_length=128, null=True) |
450 | fd65ab41 | Christos Stavrakakis | mac_prefix = models.CharField('MAC Prefix', max_length=32, null=True) |
451 | e6a42a96 | Christos Stavrakakis | public = models.BooleanField(default=False)
|
452 | 0269afd6 | Giorgos Verigakis | created = models.DateTimeField(auto_now_add=True)
|
453 | 0269afd6 | Giorgos Verigakis | updated = models.DateTimeField(auto_now=True)
|
454 | e6a42a96 | Christos Stavrakakis | deleted = models.BooleanField('Deleted', default=False) |
455 | fd65ab41 | Christos Stavrakakis | state = models.CharField(choices=OPER_STATES, max_length=32,
|
456 | fd65ab41 | Christos Stavrakakis | default='PENDING')
|
457 | f533f224 | Vangelis Koukis | machines = models.ManyToManyField(VirtualMachine, |
458 | 244c552b | Giorgos Verigakis | through='NetworkInterface')
|
459 | fd65ab41 | Christos Stavrakakis | action = models.CharField(choices=ACTIONS, max_length=32, null=True, |
460 | fd65ab41 | Christos Stavrakakis | default=None)
|
461 | e6a42a96 | Christos Stavrakakis | |
462 | e6a42a96 | Christos Stavrakakis | class InvalidBackendIdError(Exception): |
463 | fd65ab41 | Christos Stavrakakis | def __init__(self, value): |
464 | e6a42a96 | Christos Stavrakakis | self.value = value
|
465 | fd65ab41 | Christos Stavrakakis | |
466 | fd65ab41 | Christos Stavrakakis | def __str__(self): |
467 | e6a42a96 | Christos Stavrakakis | return repr(self.value) |
468 | e6a42a96 | Christos Stavrakakis | |
469 | e6a42a96 | Christos Stavrakakis | |
470 | e6a42a96 | Christos Stavrakakis | class InvalidBackendMsgError(Exception): |
471 | fd65ab41 | Christos Stavrakakis | def __init__(self, opcode, status): |
472 | e6a42a96 | Christos Stavrakakis | self.opcode = opcode
|
473 | e6a42a96 | Christos Stavrakakis | self.status = status
|
474 | fd65ab41 | Christos Stavrakakis | |
475 | fd65ab41 | Christos Stavrakakis | def __str__(self): |
476 | e6a42a96 | Christos Stavrakakis | return repr('<opcode: %s, status: %s>' % (self.opcode, |
477 | e6a42a96 | Christos Stavrakakis | self.status))
|
478 | e6a42a96 | Christos Stavrakakis | |
479 | e6a42a96 | Christos Stavrakakis | class InvalidActionError(Exception): |
480 | fd65ab41 | Christos Stavrakakis | def __init__(self, action): |
481 | e6a42a96 | Christos Stavrakakis | self._action = action
|
482 | e6a42a96 | Christos Stavrakakis | |
483 | fd65ab41 | Christos Stavrakakis | def __str__(self): |
484 | fd65ab41 | Christos Stavrakakis | return repr(str(self._action)) |
485 | e6a42a96 | Christos Stavrakakis | |
486 | e6a42a96 | Christos Stavrakakis | @property
|
487 | e6a42a96 | Christos Stavrakakis | def backend_id(self): |
488 | fd65ab41 | Christos Stavrakakis | """Return the backend id by prepending backend-prefix."""
|
489 | e6a42a96 | Christos Stavrakakis | if not self.id: |
490 | e6a42a96 | Christos Stavrakakis | raise Network.InvalidBackendIdError("self.id is None") |
491 | d30f29aa | Christos Stavrakakis | return "%snet-%s" % (settings.BACKEND_PREFIX_ID, str(self.id)) |
492 | e6a42a96 | Christos Stavrakakis | |
493 | e6a42a96 | Christos Stavrakakis | @property
|
494 | e6a42a96 | Christos Stavrakakis | def backend_tag(self): |
495 | e6a42a96 | Christos Stavrakakis | """Return the network tag to be used in backend
|
496 | e6a42a96 | Christos Stavrakakis |
|
497 | e6a42a96 | Christos Stavrakakis | """
|
498 | 839e2bd0 | Christos Stavrakakis | return getattr(snf_settings, self.type + '_TAGS') |
499 | e6a42a96 | Christos Stavrakakis | |
500 | 0269afd6 | Giorgos Verigakis | def __unicode__(self): |
501 | 0269afd6 | Giorgos Verigakis | return self.name |
502 | 4f8b91cd | Georgios Gousios | |
503 | 0b827aa4 | Christos Stavrakakis | def update_state(self): |
504 | 0b827aa4 | Christos Stavrakakis | """Update state of the Network.
|
505 | fd65ab41 | Christos Stavrakakis |
|
506 | 0b827aa4 | Christos Stavrakakis | Update the state of the Network depending on the related
|
507 | fd65ab41 | Christos Stavrakakis | backend_networks. When backend networks do not have the same operstate,
|
508 | 0b827aa4 | Christos Stavrakakis | the Network's state is PENDING. Otherwise it is the same with
|
509 | fd65ab41 | Christos Stavrakakis | the BackendNetworks operstate.
|
510 | fd65ab41 | Christos Stavrakakis |
|
511 | fd65ab41 | Christos Stavrakakis | """
|
512 | fd65ab41 | Christos Stavrakakis | backend_states = [s.operstate for s in self.backend_networks.all()] |
513 | fd65ab41 | Christos Stavrakakis | if not backend_states: |
514 | 0b827aa4 | Christos Stavrakakis | self.state = 'PENDING' |
515 | fd65ab41 | Christos Stavrakakis | self.save()
|
516 | fd65ab41 | Christos Stavrakakis | return
|
517 | fd65ab41 | Christos Stavrakakis | |
518 | fd65ab41 | Christos Stavrakakis | all_equal = len(set(backend_states)) <= 1 |
519 | 0b827aa4 | Christos Stavrakakis | self.state = all_equal and backend_states[0] or 'PENDING' |
520 | fd65ab41 | Christos Stavrakakis | |
521 | 0b827aa4 | Christos Stavrakakis | if self.state == 'DELETED': |
522 | fd65ab41 | Christos Stavrakakis | self.deleted = True |
523 | fd65ab41 | Christos Stavrakakis | |
524 | 98cc8237 | Christos Stavrakakis | if self.mac_prefix: |
525 | 98cc8237 | Christos Stavrakakis | MacPrefixPool.set_available(self.mac_prefix)
|
526 | 98cc8237 | Christos Stavrakakis | |
527 | 98cc8237 | Christos Stavrakakis | if self.link and self.type == 'PRIVATE_VLAN': |
528 | 98cc8237 | Christos Stavrakakis | BridgePool.set_available(self.link)
|
529 | 98cc8237 | Christos Stavrakakis | |
530 | fd65ab41 | Christos Stavrakakis | self.save()
|
531 | fd65ab41 | Christos Stavrakakis | |
532 | fd65ab41 | Christos Stavrakakis | def save(self, *args, **kwargs): |
533 | fd65ab41 | Christos Stavrakakis | pk = self.pk
|
534 | fd65ab41 | Christos Stavrakakis | super(Network, self).save(*args, **kwargs) |
535 | fd65ab41 | Christos Stavrakakis | if not pk: |
536 | fd65ab41 | Christos Stavrakakis | # In case of a new Network, corresponding BackendNetwork's must
|
537 | fd65ab41 | Christos Stavrakakis | # be created!
|
538 | fd65ab41 | Christos Stavrakakis | for back in Backend.objects.all(): |
539 | fd65ab41 | Christos Stavrakakis | BackendNetwork.objects.create(backend=back, network=self)
|
540 | fd65ab41 | Christos Stavrakakis | |
541 | fd65ab41 | Christos Stavrakakis | |
542 | fd65ab41 | Christos Stavrakakis | class BackendNetwork(models.Model): |
543 | fd65ab41 | Christos Stavrakakis | OPER_STATES = ( |
544 | fd65ab41 | Christos Stavrakakis | ('PENDING', 'Pending'), |
545 | fd65ab41 | Christos Stavrakakis | ('ACTIVE', 'Active'), |
546 | fd65ab41 | Christos Stavrakakis | ('DELETED', 'Deleted'), |
547 | fd65ab41 | Christos Stavrakakis | ('ERROR', 'Error') |
548 | fd65ab41 | Christos Stavrakakis | ) |
549 | fd65ab41 | Christos Stavrakakis | |
550 | fd65ab41 | Christos Stavrakakis | # The list of possible operations on the backend
|
551 | fd65ab41 | Christos Stavrakakis | BACKEND_OPCODES = ( |
552 | fd65ab41 | Christos Stavrakakis | ('OP_NETWORK_ADD', 'Create Network'), |
553 | fd65ab41 | Christos Stavrakakis | ('OP_NETWORK_CONNECT', 'Activate Network'), |
554 | fd65ab41 | Christos Stavrakakis | ('OP_NETWORK_DISCONNECT', 'Deactivate Network'), |
555 | fd65ab41 | Christos Stavrakakis | ('OP_NETWORK_REMOVE', 'Remove Network'), |
556 | fd65ab41 | Christos Stavrakakis | # These are listed here for completeness,
|
557 | fd65ab41 | Christos Stavrakakis | # and are ignored for the time being
|
558 | fd65ab41 | Christos Stavrakakis | ('OP_NETWORK_SET_PARAMS', 'Set Network Parameters'), |
559 | fd65ab41 | Christos Stavrakakis | ('OP_NETWORK_QUERY_DATA', 'Query Network Data') |
560 | fd65ab41 | Christos Stavrakakis | ) |
561 | fd65ab41 | Christos Stavrakakis | |
562 | fd65ab41 | Christos Stavrakakis | # The operating state of a Netowork,
|
563 | fd65ab41 | Christos Stavrakakis | # upon the successful completion of a backend operation.
|
564 | fd65ab41 | Christos Stavrakakis | # IMPORTANT: Make sure all keys have a corresponding
|
565 | fd65ab41 | Christos Stavrakakis | # entry in BACKEND_OPCODES if you update this field, see #1035, #1111.
|
566 | fd65ab41 | Christos Stavrakakis | OPER_STATE_FROM_OPCODE = { |
567 | fd65ab41 | Christos Stavrakakis | 'OP_NETWORK_ADD': 'PENDING', |
568 | fd65ab41 | Christos Stavrakakis | 'OP_NETWORK_CONNECT': 'ACTIVE', |
569 | fd65ab41 | Christos Stavrakakis | 'OP_NETWORK_DISCONNECT': 'PENDING', |
570 | fd65ab41 | Christos Stavrakakis | 'OP_NETWORK_REMOVE': 'DELETED', |
571 | fd65ab41 | Christos Stavrakakis | 'OP_NETWORK_SET_PARAMS': None, |
572 | fd65ab41 | Christos Stavrakakis | 'OP_NETWORK_QUERY_DATA': None |
573 | fd65ab41 | Christos Stavrakakis | } |
574 | fd65ab41 | Christos Stavrakakis | |
575 | fd65ab41 | Christos Stavrakakis | network = models.ForeignKey(Network, related_name='backend_networks')
|
576 | fd65ab41 | Christos Stavrakakis | backend = models.ForeignKey(Backend, related_name='networks')
|
577 | fd65ab41 | Christos Stavrakakis | created = models.DateTimeField(auto_now_add=True)
|
578 | fd65ab41 | Christos Stavrakakis | updated = models.DateTimeField(auto_now=True)
|
579 | fd65ab41 | Christos Stavrakakis | deleted = models.BooleanField('Deleted', default=False) |
580 | fd65ab41 | Christos Stavrakakis | operstate = models.CharField(choices=OPER_STATES, max_length=30,
|
581 | fd65ab41 | Christos Stavrakakis | default='PENDING')
|
582 | fd65ab41 | Christos Stavrakakis | backendjobid = models.PositiveIntegerField(null=True)
|
583 | fd65ab41 | Christos Stavrakakis | backendopcode = models.CharField(choices=BACKEND_OPCODES, max_length=30,
|
584 | fd65ab41 | Christos Stavrakakis | null=True)
|
585 | fd65ab41 | Christos Stavrakakis | backendjobstatus = models.CharField(choices=BACKEND_STATUSES, |
586 | fd65ab41 | Christos Stavrakakis | max_length=30, null=True) |
587 | fd65ab41 | Christos Stavrakakis | backendlogmsg = models.TextField(null=True)
|
588 | fd65ab41 | Christos Stavrakakis | backendtime = models.DateTimeField(null=False,
|
589 | fd65ab41 | Christos Stavrakakis | default=datetime.datetime.min) |
590 | fd65ab41 | Christos Stavrakakis | |
591 | fd65ab41 | Christos Stavrakakis | def save(self, *args, **kwargs): |
592 | fd65ab41 | Christos Stavrakakis | super(BackendNetwork, self).save(*args, **kwargs) |
593 | 0b827aa4 | Christos Stavrakakis | self.network.update_state()
|
594 | fd65ab41 | Christos Stavrakakis | |
595 | fd65ab41 | Christos Stavrakakis | def delete(self, *args, **kwargs): |
596 | fd65ab41 | Christos Stavrakakis | super(BackendNetwork, self).delete(*args, **kwargs) |
597 | 0b827aa4 | Christos Stavrakakis | self.network.update_state()
|
598 | fd65ab41 | Christos Stavrakakis | |
599 | f533f224 | Vangelis Koukis | |
600 | f533f224 | Vangelis Koukis | class NetworkInterface(models.Model): |
601 | f533f224 | Vangelis Koukis | FIREWALL_PROFILES = ( |
602 | f533f224 | Vangelis Koukis | ('ENABLED', 'Enabled'), |
603 | 26563957 | Giorgos Verigakis | ('DISABLED', 'Disabled'), |
604 | 26563957 | Giorgos Verigakis | ('PROTECTED', 'Protected') |
605 | f533f224 | Vangelis Koukis | ) |
606 | ce55f211 | Kostas Papadimitriou | |
607 | f533f224 | Vangelis Koukis | machine = models.ForeignKey(VirtualMachine, related_name='nics')
|
608 | f533f224 | Vangelis Koukis | network = models.ForeignKey(Network, related_name='nics')
|
609 | f533f224 | Vangelis Koukis | created = models.DateTimeField(auto_now_add=True)
|
610 | f533f224 | Vangelis Koukis | updated = models.DateTimeField(auto_now=True)
|
611 | 3b56bbe4 | Christos Stavrakakis | index = models.IntegerField(null=False)
|
612 | f533f224 | Vangelis Koukis | mac = models.CharField(max_length=17, null=True) |
613 | f533f224 | Vangelis Koukis | ipv4 = models.CharField(max_length=15, null=True) |
614 | f533f224 | Vangelis Koukis | ipv6 = models.CharField(max_length=100, null=True) |
615 | f533f224 | Vangelis Koukis | firewall_profile = models.CharField(choices=FIREWALL_PROFILES, |
616 | 244c552b | Giorgos Verigakis | max_length=30, null=True) |
617 | 0196d9a3 | Christos Stavrakakis | dirty = models.BooleanField(default=False)
|
618 | ce55f211 | Kostas Papadimitriou | |
619 | 2987cd8a | Giorgos Verigakis | def __unicode__(self): |
620 | 2987cd8a | Giorgos Verigakis | return '%s@%s' % (self.machine.name, self.network.name) |
621 | f533f224 | Vangelis Koukis | |
622 | f533f224 | Vangelis Koukis | |
623 | e6a42a96 | Christos Stavrakakis | class Pool(models.Model): |
624 | e6a42a96 | Christos Stavrakakis | available = models.BooleanField(default=True, null=False) |
625 | e6a42a96 | Christos Stavrakakis | index = models.IntegerField(null=False, unique=True) |
626 | e6a42a96 | Christos Stavrakakis | value = models.CharField(max_length=128, null=False, unique=True) |
627 | e6a42a96 | Christos Stavrakakis | max_index = 0
|
628 | ce55f211 | Kostas Papadimitriou | |
629 | e6a42a96 | Christos Stavrakakis | class Meta: |
630 | e6a42a96 | Christos Stavrakakis | abstract = True
|
631 | e6a42a96 | Christos Stavrakakis | ordering = ['index']
|
632 | e6a42a96 | Christos Stavrakakis | |
633 | e6a42a96 | Christos Stavrakakis | @classmethod
|
634 | e6a42a96 | Christos Stavrakakis | def get_available(cls): |
635 | e6a42a96 | Christos Stavrakakis | try:
|
636 | e6a42a96 | Christos Stavrakakis | entry = cls.objects.filter(available=True)[0] |
637 | e6a42a96 | Christos Stavrakakis | entry.available = False
|
638 | e6a42a96 | Christos Stavrakakis | entry.save() |
639 | e6a42a96 | Christos Stavrakakis | return entry
|
640 | e6a42a96 | Christos Stavrakakis | except IndexError: |
641 | e6a42a96 | Christos Stavrakakis | return cls.generate_new()
|
642 | e6a42a96 | Christos Stavrakakis | |
643 | e6a42a96 | Christos Stavrakakis | @classmethod
|
644 | e6a42a96 | Christos Stavrakakis | def generate_new(cls): |
645 | e6a42a96 | Christos Stavrakakis | try:
|
646 | e6a42a96 | Christos Stavrakakis | last = cls.objects.order_by('-index')[0] |
647 | e6a42a96 | Christos Stavrakakis | index = last.index + 1
|
648 | e6a42a96 | Christos Stavrakakis | except IndexError: |
649 | e6a42a96 | Christos Stavrakakis | index = 1
|
650 | e6a42a96 | Christos Stavrakakis | |
651 | e6a42a96 | Christos Stavrakakis | if index <= cls.max_index:
|
652 | e6a42a96 | Christos Stavrakakis | return cls.objects.create(index=index,
|
653 | e6a42a96 | Christos Stavrakakis | value=cls.value_from_index(index), |
654 | e6a42a96 | Christos Stavrakakis | available=False)
|
655 | e6a42a96 | Christos Stavrakakis | |
656 | e6a42a96 | Christos Stavrakakis | raise Pool.PoolExhausted()
|
657 | e6a42a96 | Christos Stavrakakis | |
658 | e6a42a96 | Christos Stavrakakis | @classmethod
|
659 | e6a42a96 | Christos Stavrakakis | def set_available(cls, value): |
660 | e6a42a96 | Christos Stavrakakis | entry = cls.objects.get(value=value) |
661 | e6a42a96 | Christos Stavrakakis | entry.available = True
|
662 | e6a42a96 | Christos Stavrakakis | entry.save() |
663 | e6a42a96 | Christos Stavrakakis | |
664 | e6a42a96 | Christos Stavrakakis | |
665 | e6a42a96 | Christos Stavrakakis | class PoolExhausted(Exception): |
666 | ce55f211 | Kostas Papadimitriou | pass
|
667 | ce55f211 | Kostas Papadimitriou | |
668 | e6a42a96 | Christos Stavrakakis | |
669 | e6a42a96 | Christos Stavrakakis | class BridgePool(Pool): |
670 | 839e2bd0 | Christos Stavrakakis | max_index = snf_settings.PRIVATE_PHYSICAL_VLAN_MAX_NUMBER |
671 | e6a42a96 | Christos Stavrakakis | |
672 | e6a42a96 | Christos Stavrakakis | @staticmethod
|
673 | e6a42a96 | Christos Stavrakakis | def value_from_index(index): |
674 | 839e2bd0 | Christos Stavrakakis | return snf_settings.PRIVATE_PHYSICAL_VLAN_BRIDGE_PREFIX + str(index) |
675 | e6a42a96 | Christos Stavrakakis | |
676 | e6a42a96 | Christos Stavrakakis | |
677 | e6a42a96 | Christos Stavrakakis | class MacPrefixPool(Pool): |
678 | 839e2bd0 | Christos Stavrakakis | max_index = snf_settings.PRIVATE_MAC_FILTERED_MAX_PREFIX_NUMBER |
679 | e6a42a96 | Christos Stavrakakis | |
680 | e6a42a96 | Christos Stavrakakis | @staticmethod
|
681 | e6a42a96 | Christos Stavrakakis | def value_from_index(index): |
682 | e6a42a96 | Christos Stavrakakis | """Convert number to mac prefix
|
683 | e6a42a96 | Christos Stavrakakis |
|
684 | e6a42a96 | Christos Stavrakakis | """
|
685 | 839e2bd0 | Christos Stavrakakis | high = snf_settings.PRIVATE_MAC_FILTERED_BASE_MAC_PREFIX |
686 | e6a42a96 | Christos Stavrakakis | a = hex(int(high.replace(":", ""), 16) + index).replace("0x", '') |
687 | e6a42a96 | Christos Stavrakakis | mac_prefix = ":".join([a[x:x + 2] for x in xrange(0, len(a), 2)]) |
688 | e6a42a96 | Christos Stavrakakis | return mac_prefix |