root / snf-cyclades-app / synnefo / api / util.py @ a4658bbe
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1 | 6ef51e9f | Giorgos Verigakis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | d1387ed7 | Christodoulos Psaltis | #
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3 | adee02b8 | Giorgos Verigakis | # Redistribution and use in source and binary forms, with or
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4 | adee02b8 | Giorgos Verigakis | # without modification, are permitted provided that the following
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5 | adee02b8 | Giorgos Verigakis | # conditions are met:
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6 | d1387ed7 | Christodoulos Psaltis | #
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7 | adee02b8 | Giorgos Verigakis | # 1. Redistributions of source code must retain the above
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8 | adee02b8 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
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9 | adee02b8 | Giorgos Verigakis | # disclaimer.
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10 | d1387ed7 | Christodoulos Psaltis | #
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11 | adee02b8 | Giorgos Verigakis | # 2. Redistributions in binary form must reproduce the above
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12 | adee02b8 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
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13 | adee02b8 | Giorgos Verigakis | # disclaimer in the documentation and/or other materials
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14 | adee02b8 | Giorgos Verigakis | # provided with the distribution.
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15 | d1387ed7 | Christodoulos Psaltis | #
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16 | adee02b8 | Giorgos Verigakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | adee02b8 | Giorgos Verigakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | adee02b8 | Giorgos Verigakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | adee02b8 | Giorgos Verigakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | adee02b8 | Giorgos Verigakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | adee02b8 | Giorgos Verigakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | adee02b8 | Giorgos Verigakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | adee02b8 | Giorgos Verigakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | adee02b8 | Giorgos Verigakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | adee02b8 | Giorgos Verigakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | adee02b8 | Giorgos Verigakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | adee02b8 | Giorgos Verigakis | # POSSIBILITY OF SUCH DAMAGE.
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28 | d1387ed7 | Christodoulos Psaltis | #
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29 | adee02b8 | Giorgos Verigakis | # The views and conclusions contained in the software and
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30 | adee02b8 | Giorgos Verigakis | # documentation are those of the authors and should not be
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31 | adee02b8 | Giorgos Verigakis | # interpreted as representing official policies, either expressed
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32 | adee02b8 | Giorgos Verigakis | # or implied, of GRNET S.A.
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33 | 7e2f9d4b | Giorgos Verigakis | |
34 | dca7553e | Christos Stavrakakis | from base64 import b64encode, b64decode |
35 | c738c935 | Giorgos Verigakis | from hashlib import sha256 |
36 | 2035039b | Giorgos Verigakis | from logging import getLogger |
37 | d8e50a39 | Giorgos Verigakis | from random import choice |
38 | dca2a31f | Giorgos Verigakis | from string import digits, lowercase, uppercase |
39 | 2035039b | Giorgos Verigakis | |
40 | c738c935 | Giorgos Verigakis | from Crypto.Cipher import AES |
41 | 529178b1 | Giorgos Verigakis | |
42 | d8e50a39 | Giorgos Verigakis | from django.conf import settings |
43 | 7e2f9d4b | Giorgos Verigakis | from django.http import HttpResponse |
44 | 7e2f9d4b | Giorgos Verigakis | from django.template.loader import render_to_string |
45 | 29a59bc1 | Giorgos Verigakis | from django.utils import simplejson as json |
46 | d3406fbc | Christos Stavrakakis | from django.db.models import Q |
47 | 7e2f9d4b | Giorgos Verigakis | |
48 | bd40abfa | Christos Stavrakakis | from snf_django.lib.api import faults |
49 | 6ef51e9f | Giorgos Verigakis | from synnefo.db.models import (Flavor, VirtualMachine, VirtualMachineMetadata, |
50 | 7fede91e | Christos Stavrakakis | Network, BackendNetwork, NetworkInterface, |
51 | f8675683 | Christos Stavrakakis | BridgePoolTable, MacPrefixPoolTable, Backend, |
52 | f8675683 | Christos Stavrakakis | FloatingIP) |
53 | adc46059 | Christos Stavrakakis | from synnefo.db.pools import EmptyPool |
54 | 6dd70a5c | Christos Stavrakakis | |
55 | b3fd98ae | Christos Stavrakakis | from synnefo.plankton.utils import image_backend |
56 | 9e98ba3c | Giorgos Verigakis | |
57 | 1b696c26 | Christos Stavrakakis | from synnefo.cyclades_settings import cyclades_services, BASE_HOST |
58 | 1b696c26 | Christos Stavrakakis | from synnefo.lib.services import get_service_path |
59 | 1b696c26 | Christos Stavrakakis | from synnefo.lib import join_urls |
60 | 1b696c26 | Christos Stavrakakis | |
61 | 1b696c26 | Christos Stavrakakis | COMPUTE_URL = \ |
62 | 1b696c26 | Christos Stavrakakis | join_urls(BASE_HOST, |
63 | 1b696c26 | Christos Stavrakakis | get_service_path(cyclades_services, "compute", version="v2.0")) |
64 | 1b696c26 | Christos Stavrakakis | SERVERS_URL = join_urls(COMPUTE_URL, "servers/")
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65 | 1b696c26 | Christos Stavrakakis | NETWORKS_URL = join_urls(COMPUTE_URL, "networks/")
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66 | 1b696c26 | Christos Stavrakakis | FLAVORS_URL = join_urls(COMPUTE_URL, "flavors/")
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67 | 1b696c26 | Christos Stavrakakis | IMAGES_URL = join_urls(COMPUTE_URL, "images/")
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68 | 1b696c26 | Christos Stavrakakis | PLANKTON_URL = \ |
69 | 1b696c26 | Christos Stavrakakis | join_urls(BASE_HOST, |
70 | 1b696c26 | Christos Stavrakakis | get_service_path(cyclades_services, "image", version="v1.0")) |
71 | 1b696c26 | Christos Stavrakakis | IMAGES_PLANKTON_URL = join_urls(PLANKTON_URL, "images/")
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72 | 1b696c26 | Christos Stavrakakis | |
73 | 9e98ba3c | Giorgos Verigakis | |
74 | 9e98ba3c | Giorgos Verigakis | log = getLogger('synnefo.api')
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75 | 9e98ba3c | Giorgos Verigakis | |
76 | 7e2f9d4b | Giorgos Verigakis | |
77 | dca2a31f | Giorgos Verigakis | def random_password(): |
78 | dca2a31f | Giorgos Verigakis | """Generates a random password
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79 | ce55f211 | Kostas Papadimitriou |
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80 | 62eac5a6 | Giorgos Verigakis | We generate a windows compliant password: it must contain at least
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81 | dca2a31f | Giorgos Verigakis | one charachter from each of the groups: upper case, lower case, digits.
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82 | dca2a31f | Giorgos Verigakis | """
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83 | ce55f211 | Kostas Papadimitriou | |
84 | dca2a31f | Giorgos Verigakis | pool = lowercase + uppercase + digits |
85 | dca2a31f | Giorgos Verigakis | lowerset = set(lowercase)
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86 | dca2a31f | Giorgos Verigakis | upperset = set(uppercase)
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87 | dca2a31f | Giorgos Verigakis | digitset = set(digits)
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88 | dca2a31f | Giorgos Verigakis | length = 10
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89 | ce55f211 | Kostas Papadimitriou | |
90 | 62eac5a6 | Giorgos Verigakis | password = ''.join(choice(pool) for i in range(length - 2)) |
91 | ce55f211 | Kostas Papadimitriou | |
92 | 62eac5a6 | Giorgos Verigakis | # Make sure the password is compliant
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93 | 62eac5a6 | Giorgos Verigakis | chars = set(password)
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94 | 62eac5a6 | Giorgos Verigakis | if not chars & lowerset: |
95 | 62eac5a6 | Giorgos Verigakis | password += choice(lowercase) |
96 | 62eac5a6 | Giorgos Verigakis | if not chars & upperset: |
97 | 62eac5a6 | Giorgos Verigakis | password += choice(uppercase) |
98 | 62eac5a6 | Giorgos Verigakis | if not chars & digitset: |
99 | 62eac5a6 | Giorgos Verigakis | password += choice(digits) |
100 | ce55f211 | Kostas Papadimitriou | |
101 | 62eac5a6 | Giorgos Verigakis | # Pad if necessary to reach required length
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102 | 62eac5a6 | Giorgos Verigakis | password += ''.join(choice(pool) for i in range(length - len(password))) |
103 | ce55f211 | Kostas Papadimitriou | |
104 | dca2a31f | Giorgos Verigakis | return password
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105 | dca2a31f | Giorgos Verigakis | |
106 | d8e50a39 | Giorgos Verigakis | |
107 | c738c935 | Giorgos Verigakis | def zeropad(s): |
108 | c738c935 | Giorgos Verigakis | """Add zeros at the end of a string in order to make its length
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109 | c738c935 | Giorgos Verigakis | a multiple of 16."""
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110 | d1387ed7 | Christodoulos Psaltis | |
111 | c738c935 | Giorgos Verigakis | npad = 16 - len(s) % 16 |
112 | c738c935 | Giorgos Verigakis | return s + '\x00' * npad |
113 | c738c935 | Giorgos Verigakis | |
114 | a08e4270 | Vangelis Koukis | |
115 | c738c935 | Giorgos Verigakis | def encrypt(plaintext): |
116 | c738c935 | Giorgos Verigakis | # Make sure key is 32 bytes long
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117 | c738c935 | Giorgos Verigakis | key = sha256(settings.SECRET_KEY).digest() |
118 | d1387ed7 | Christodoulos Psaltis | |
119 | c738c935 | Giorgos Verigakis | aes = AES.new(key) |
120 | c738c935 | Giorgos Verigakis | enc = aes.encrypt(zeropad(plaintext)) |
121 | c738c935 | Giorgos Verigakis | return b64encode(enc)
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122 | c738c935 | Giorgos Verigakis | |
123 | 7e2f9d4b | Giorgos Verigakis | |
124 | 7f2dbcad | Christos Stavrakakis | def get_vm(server_id, user_id, for_update=False, non_deleted=False, |
125 | 7f2dbcad | Christos Stavrakakis | non_suspended=False):
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126 | e221ade2 | Christos Stavrakakis | """Find a VirtualMachine instance based on ID and owner."""
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127 | aa197ee4 | Vangelis Koukis | |
128 | d8e50a39 | Giorgos Verigakis | try:
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129 | d8e50a39 | Giorgos Verigakis | server_id = int(server_id)
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130 | 7f2dbcad | Christos Stavrakakis | servers = VirtualMachine.objects |
131 | 7f2dbcad | Christos Stavrakakis | if for_update:
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132 | 7f2dbcad | Christos Stavrakakis | servers = servers.select_for_update() |
133 | 7f2dbcad | Christos Stavrakakis | vm = servers.get(id=server_id, userid=user_id) |
134 | e221ade2 | Christos Stavrakakis | if non_deleted and vm.deleted: |
135 | 5b0832fc | Christos Stavrakakis | raise faults.BadRequest("Server has been deleted.") |
136 | e221ade2 | Christos Stavrakakis | if non_suspended and vm.suspended: |
137 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden("Administratively Suspended VM") |
138 | 3a522cff | Christos Stavrakakis | return vm
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139 | d8e50a39 | Giorgos Verigakis | except ValueError: |
140 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Invalid server ID.') |
141 | d8e50a39 | Giorgos Verigakis | except VirtualMachine.DoesNotExist:
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142 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Server not found.') |
143 | d8e50a39 | Giorgos Verigakis | |
144 | 7f2dbcad | Christos Stavrakakis | |
145 | 40777cc8 | Giorgos Verigakis | def get_vm_meta(vm, key): |
146 | d8e50a39 | Giorgos Verigakis | """Return a VirtualMachineMetadata instance or raise ItemNotFound."""
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147 | aa197ee4 | Vangelis Koukis | |
148 | d8e50a39 | Giorgos Verigakis | try:
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149 | 40777cc8 | Giorgos Verigakis | return VirtualMachineMetadata.objects.get(meta_key=key, vm=vm)
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150 | d8e50a39 | Giorgos Verigakis | except VirtualMachineMetadata.DoesNotExist:
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151 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Metadata key not found.') |
152 | d8e50a39 | Giorgos Verigakis | |
153 | a08e4270 | Vangelis Koukis | |
154 | 6ef51e9f | Giorgos Verigakis | def get_image(image_id, user_id): |
155 | d8e50a39 | Giorgos Verigakis | """Return an Image instance or raise ItemNotFound."""
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156 | aa197ee4 | Vangelis Koukis | |
157 | b3fd98ae | Christos Stavrakakis | with image_backend(user_id) as backend: |
158 | cda71050 | Christos Stavrakakis | return backend.get_image(image_id)
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159 | 3a9b3cde | Giorgos Verigakis | |
160 | a08e4270 | Vangelis Koukis | |
161 | dca7553e | Christos Stavrakakis | def get_image_dict(image_id, user_id): |
162 | dca7553e | Christos Stavrakakis | image = {} |
163 | dca7553e | Christos Stavrakakis | img = get_image(image_id, user_id) |
164 | dca7553e | Christos Stavrakakis | properties = img.get('properties', {})
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165 | bcd80cd9 | Christos Stavrakakis | image["id"] = img["id"] |
166 | bcd80cd9 | Christos Stavrakakis | image["name"] = img["name"] |
167 | dca7553e | Christos Stavrakakis | image['backend_id'] = img['location'] |
168 | dca7553e | Christos Stavrakakis | image['format'] = img['disk_format'] |
169 | e440e835 | Christos Stavrakakis | image['metadata'] = dict((key.upper(), val) |
170 | dca7553e | Christos Stavrakakis | for key, val in properties.items()) |
171 | 2cb812be | Christos Stavrakakis | image['checksum'] = img['checksum'] |
172 | 2cb812be | Christos Stavrakakis | |
173 | dca7553e | Christos Stavrakakis | return image
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174 | dca7553e | Christos Stavrakakis | |
175 | dca7553e | Christos Stavrakakis | |
176 | aa8230bd | Christos Stavrakakis | def get_flavor(flavor_id, include_deleted=False): |
177 | 529178b1 | Giorgos Verigakis | """Return a Flavor instance or raise ItemNotFound."""
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178 | aa197ee4 | Vangelis Koukis | |
179 | 529178b1 | Giorgos Verigakis | try:
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180 | 529178b1 | Giorgos Verigakis | flavor_id = int(flavor_id)
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181 | aa8230bd | Christos Stavrakakis | if include_deleted:
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182 | aa8230bd | Christos Stavrakakis | return Flavor.objects.get(id=flavor_id)
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183 | aa8230bd | Christos Stavrakakis | else:
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184 | aa8230bd | Christos Stavrakakis | return Flavor.objects.get(id=flavor_id, deleted=include_deleted)
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185 | 6ef51e9f | Giorgos Verigakis | except (ValueError, Flavor.DoesNotExist): |
186 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Flavor not found.') |
187 | d8e50a39 | Giorgos Verigakis | |
188 | a08e4270 | Vangelis Koukis | |
189 | 9dcb5b8a | Christos Stavrakakis | def get_flavor_provider(flavor): |
190 | 9dcb5b8a | Christos Stavrakakis | """Extract provider from disk template.
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191 | 9dcb5b8a | Christos Stavrakakis |
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192 | 9dcb5b8a | Christos Stavrakakis | Provider for `ext` disk_template is encoded in the disk template
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193 | 9dcb5b8a | Christos Stavrakakis | name, which is formed `ext_<provider_name>`. Provider is None
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194 | 9dcb5b8a | Christos Stavrakakis | for all other disk templates.
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195 | 9dcb5b8a | Christos Stavrakakis |
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196 | 9dcb5b8a | Christos Stavrakakis | """
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197 | 9dcb5b8a | Christos Stavrakakis | disk_template = flavor.disk_template |
198 | 9dcb5b8a | Christos Stavrakakis | provider = None
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199 | 9dcb5b8a | Christos Stavrakakis | if disk_template.startswith("ext"): |
200 | 9dcb5b8a | Christos Stavrakakis | disk_template, provider = disk_template.split("_", 1) |
201 | 9dcb5b8a | Christos Stavrakakis | return disk_template, provider
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202 | 9dcb5b8a | Christos Stavrakakis | |
203 | 9dcb5b8a | Christos Stavrakakis | |
204 | 9e8be4fb | Christos Stavrakakis | def get_network(network_id, user_id, for_update=False, non_deleted=False): |
205 | e2ee7808 | Giorgos Verigakis | """Return a Network instance or raise ItemNotFound."""
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206 | aa197ee4 | Vangelis Koukis | |
207 | e2ee7808 | Giorgos Verigakis | try:
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208 | 7fede91e | Christos Stavrakakis | network_id = int(network_id)
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209 | d3406fbc | Christos Stavrakakis | objects = Network.objects |
210 | d2e73c0c | Christos Stavrakakis | if for_update:
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211 | d3406fbc | Christos Stavrakakis | objects = objects.select_for_update() |
212 | 9e8be4fb | Christos Stavrakakis | network = objects.get(Q(userid=user_id) | Q(public=True),
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213 | 9e8be4fb | Christos Stavrakakis | id=network_id) |
214 | 9e8be4fb | Christos Stavrakakis | if non_deleted and network.deleted: |
215 | f8675683 | Christos Stavrakakis | raise faults.BadRequest("Network has been deleted.") |
216 | 9e8be4fb | Christos Stavrakakis | return network
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217 | 6ef51e9f | Giorgos Verigakis | except (ValueError, Network.DoesNotExist): |
218 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Network not found.') |
219 | e2ee7808 | Giorgos Verigakis | |
220 | a08e4270 | Vangelis Koukis | |
221 | f8675683 | Christos Stavrakakis | def get_floating_ip(user_id, ipv4, for_update=False): |
222 | f8675683 | Christos Stavrakakis | try:
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223 | f8675683 | Christos Stavrakakis | objects = FloatingIP.objects |
224 | f8675683 | Christos Stavrakakis | if for_update:
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225 | f8675683 | Christos Stavrakakis | objects = objects.select_for_update() |
226 | f8675683 | Christos Stavrakakis | return objects.get(userid=user_id, ipv4=ipv4, deleted=False) |
227 | f8675683 | Christos Stavrakakis | except FloatingIP.DoesNotExist:
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228 | f8675683 | Christos Stavrakakis | raise faults.ItemNotFound("Floating IP does not exist.") |
229 | f8675683 | Christos Stavrakakis | |
230 | f8675683 | Christos Stavrakakis | |
231 | adc46059 | Christos Stavrakakis | def allocate_public_address(backend): |
232 | 660b9f3b | Christos Stavrakakis | """Get a public IP for any available network of a backend."""
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233 | 85919a0f | Christos Stavrakakis | # Guarantee exclusive access to backend, because accessing the IP pools of
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234 | 85919a0f | Christos Stavrakakis | # the backend networks may result in a deadlock with backend allocator
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235 | 85919a0f | Christos Stavrakakis | # which also checks that backend networks have a free IP.
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236 | 85919a0f | Christos Stavrakakis | backend = Backend.objects.select_for_update().get(id=backend.id) |
237 | 660b9f3b | Christos Stavrakakis | public_networks = backend_public_networks(backend) |
238 | 660b9f3b | Christos Stavrakakis | return get_free_ip(public_networks)
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239 | dca7553e | Christos Stavrakakis | |
240 | dca7553e | Christos Stavrakakis | |
241 | 7fede91e | Christos Stavrakakis | def backend_public_networks(backend): |
242 | 7fede91e | Christos Stavrakakis | """Return available public networks of the backend.
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243 | 7fede91e | Christos Stavrakakis |
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244 | 7fede91e | Christos Stavrakakis | Iterator for non-deleted public networks that are available
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245 | 7fede91e | Christos Stavrakakis | to the specified backend.
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246 | 7fede91e | Christos Stavrakakis |
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247 | 7fede91e | Christos Stavrakakis | """
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248 | 660b9f3b | Christos Stavrakakis | bnets = BackendNetwork.objects.filter(backend=backend, |
249 | 660b9f3b | Christos Stavrakakis | network__public=True,
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250 | 660b9f3b | Christos Stavrakakis | network__deleted=False,
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251 | 12e539f0 | Christos Stavrakakis | network__floating_ip_pool=False,
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252 | 12e539f0 | Christos Stavrakakis | network__subnet__isnull=False,
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253 | 660b9f3b | Christos Stavrakakis | network__drained=False)
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254 | 660b9f3b | Christos Stavrakakis | return [b.network for b in bnets] |
255 | 660b9f3b | Christos Stavrakakis | |
256 | 660b9f3b | Christos Stavrakakis | |
257 | 660b9f3b | Christos Stavrakakis | def get_free_ip(networks): |
258 | 660b9f3b | Christos Stavrakakis | for network in networks: |
259 | 660b9f3b | Christos Stavrakakis | try:
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260 | 660b9f3b | Christos Stavrakakis | address = get_network_free_address(network) |
261 | 660b9f3b | Christos Stavrakakis | return network, address
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262 | 660b9f3b | Christos Stavrakakis | except faults.OverLimit:
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263 | 660b9f3b | Christos Stavrakakis | pass
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264 | 660b9f3b | Christos Stavrakakis | msg = "Can not allocate public IP. Public networks are full."
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265 | 660b9f3b | Christos Stavrakakis | log.error(msg) |
266 | 660b9f3b | Christos Stavrakakis | raise faults.OverLimit(msg)
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267 | 7fede91e | Christos Stavrakakis | |
268 | 7fede91e | Christos Stavrakakis | |
269 | 7fede91e | Christos Stavrakakis | def get_network_free_address(network): |
270 | 34c03a51 | Christos Stavrakakis | """Reserve an IP address from the IP Pool of the network."""
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271 | 7fede91e | Christos Stavrakakis | |
272 | fdc94944 | Christos Stavrakakis | pool = network.get_pool() |
273 | 34c03a51 | Christos Stavrakakis | try:
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274 | 34c03a51 | Christos Stavrakakis | address = pool.get() |
275 | 34c03a51 | Christos Stavrakakis | except EmptyPool:
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276 | 34c03a51 | Christos Stavrakakis | raise faults.OverLimit("Network %s is full." % network.backend_id) |
277 | 7fede91e | Christos Stavrakakis | pool.save() |
278 | 7fede91e | Christos Stavrakakis | return address
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279 | 7fede91e | Christos Stavrakakis | |
280 | 7fede91e | Christos Stavrakakis | |
281 | d44c236b | Giorgos Verigakis | def get_nic(machine, network): |
282 | d44c236b | Giorgos Verigakis | try:
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283 | d44c236b | Giorgos Verigakis | return NetworkInterface.objects.get(machine=machine, network=network)
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284 | d44c236b | Giorgos Verigakis | except NetworkInterface.DoesNotExist:
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285 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Server not connected to this network.') |
286 | d44c236b | Giorgos Verigakis | |
287 | 7fede91e | Christos Stavrakakis | |
288 | 08b079e2 | Stavros Sachtouris | def get_nic_from_index(vm, nic_index): |
289 | 08b079e2 | Stavros Sachtouris | """Returns the nic_index-th nic of a vm
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290 | 08b079e2 | Stavros Sachtouris | Error Response Codes: itemNotFound (404), badMediaType (415)
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291 | 08b079e2 | Stavros Sachtouris | """
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292 | 08b079e2 | Stavros Sachtouris | matching_nics = vm.nics.filter(index=nic_index) |
293 | 08b079e2 | Stavros Sachtouris | matching_nics_len = len(matching_nics)
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294 | 08b079e2 | Stavros Sachtouris | if matching_nics_len < 1: |
295 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('NIC not found on VM') |
296 | 08b079e2 | Stavros Sachtouris | elif matching_nics_len > 1: |
297 | bd40abfa | Christos Stavrakakis | raise faults.BadMediaType('NIC index conflict on VM') |
298 | 08b079e2 | Stavros Sachtouris | nic = matching_nics[0]
|
299 | 08b079e2 | Stavros Sachtouris | return nic
|
300 | e2ee7808 | Giorgos Verigakis | |
301 | 7fede91e | Christos Stavrakakis | |
302 | 432fc8c3 | Giorgos Verigakis | def render_metadata(request, metadata, use_values=False, status=200): |
303 | 432fc8c3 | Giorgos Verigakis | if request.serialization == 'xml': |
304 | 432fc8c3 | Giorgos Verigakis | data = render_to_string('metadata.xml', {'metadata': metadata}) |
305 | 432fc8c3 | Giorgos Verigakis | else:
|
306 | b36f78fa | Giorgos Verigakis | if use_values:
|
307 | b36f78fa | Giorgos Verigakis | d = {'metadata': {'values': metadata}} |
308 | b36f78fa | Giorgos Verigakis | else:
|
309 | b36f78fa | Giorgos Verigakis | d = {'metadata': metadata}
|
310 | 432fc8c3 | Giorgos Verigakis | data = json.dumps(d) |
311 | 432fc8c3 | Giorgos Verigakis | return HttpResponse(data, status=status)
|
312 | 432fc8c3 | Giorgos Verigakis | |
313 | a08e4270 | Vangelis Koukis | |
314 | 432fc8c3 | Giorgos Verigakis | def render_meta(request, meta, status=200): |
315 | 432fc8c3 | Giorgos Verigakis | if request.serialization == 'xml': |
316 | 32e4e343 | Christos Stavrakakis | key, val = meta.items()[0]
|
317 | 6ef51e9f | Giorgos Verigakis | data = render_to_string('meta.xml', dict(key=key, val=val)) |
318 | 432fc8c3 | Giorgos Verigakis | else:
|
319 | 6ef51e9f | Giorgos Verigakis | data = json.dumps(dict(meta=meta))
|
320 | 432fc8c3 | Giorgos Verigakis | return HttpResponse(data, status=status)
|
321 | 432fc8c3 | Giorgos Verigakis | |
322 | a08e4270 | Vangelis Koukis | |
323 | 08b079e2 | Stavros Sachtouris | def construct_nic_id(nic): |
324 | 08b079e2 | Stavros Sachtouris | return "-".join(["nic", unicode(nic.machine.id), unicode(nic.index)]) |
325 | 6dd70a5c | Christos Stavrakakis | |
326 | 6dd70a5c | Christos Stavrakakis | |
327 | dca7553e | Christos Stavrakakis | def verify_personality(personality): |
328 | 6ec4694f | Christos Stavrakakis | """Verify that a a list of personalities is well formed"""
|
329 | 006c6249 | Christos Stavrakakis | if len(personality) > settings.MAX_PERSONALITY: |
330 | bd40abfa | Christos Stavrakakis | raise faults.OverLimit("Maximum number of personalities" |
331 | 32e4e343 | Christos Stavrakakis | " exceeded")
|
332 | dca7553e | Christos Stavrakakis | for p in personality: |
333 | dca7553e | Christos Stavrakakis | # Verify that personalities are well-formed
|
334 | dca7553e | Christos Stavrakakis | try:
|
335 | dca7553e | Christos Stavrakakis | assert isinstance(p, dict) |
336 | dca7553e | Christos Stavrakakis | keys = set(p.keys())
|
337 | dca7553e | Christos Stavrakakis | allowed = set(['contents', 'group', 'mode', 'owner', 'path']) |
338 | dca7553e | Christos Stavrakakis | assert keys.issubset(allowed)
|
339 | dca7553e | Christos Stavrakakis | contents = p['contents']
|
340 | dca7553e | Christos Stavrakakis | if len(contents) > settings.MAX_PERSONALITY_SIZE: |
341 | dca7553e | Christos Stavrakakis | # No need to decode if contents already exceed limit
|
342 | bd40abfa | Christos Stavrakakis | raise faults.OverLimit("Maximum size of personality exceeded") |
343 | dca7553e | Christos Stavrakakis | if len(b64decode(contents)) > settings.MAX_PERSONALITY_SIZE: |
344 | bd40abfa | Christos Stavrakakis | raise faults.OverLimit("Maximum size of personality exceeded") |
345 | dca7553e | Christos Stavrakakis | except AssertionError: |
346 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Malformed personality in request") |
347 | 2a599282 | Christos Stavrakakis | |
348 | 2a599282 | Christos Stavrakakis | |
349 | b7d38981 | Dimitris Aragiorgis | def values_from_flavor(flavor): |
350 | b7d38981 | Dimitris Aragiorgis | """Get Ganeti connectivity info from flavor type.
|
351 | b7d38981 | Dimitris Aragiorgis |
|
352 | b7d38981 | Dimitris Aragiorgis | If link or mac_prefix equals to "pool", then the resources
|
353 | b7d38981 | Dimitris Aragiorgis | are allocated from the corresponding Pools.
|
354 | b7d38981 | Dimitris Aragiorgis |
|
355 | b7d38981 | Dimitris Aragiorgis | """
|
356 | b7d38981 | Dimitris Aragiorgis | try:
|
357 | b7d38981 | Dimitris Aragiorgis | flavor = Network.FLAVORS[flavor] |
358 | b7d38981 | Dimitris Aragiorgis | except KeyError: |
359 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Unknown network flavor") |
360 | b7d38981 | Dimitris Aragiorgis | |
361 | b7d38981 | Dimitris Aragiorgis | mode = flavor.get("mode")
|
362 | b7d38981 | Dimitris Aragiorgis | |
363 | b7d38981 | Dimitris Aragiorgis | link = flavor.get("link")
|
364 | b7d38981 | Dimitris Aragiorgis | if link == "pool": |
365 | b7d38981 | Dimitris Aragiorgis | link = allocate_resource("bridge")
|
366 | b7d38981 | Dimitris Aragiorgis | |
367 | b7d38981 | Dimitris Aragiorgis | mac_prefix = flavor.get("mac_prefix")
|
368 | b7d38981 | Dimitris Aragiorgis | if mac_prefix == "pool": |
369 | b7d38981 | Dimitris Aragiorgis | mac_prefix = allocate_resource("mac_prefix")
|
370 | b7d38981 | Dimitris Aragiorgis | |
371 | b7d38981 | Dimitris Aragiorgis | tags = flavor.get("tags")
|
372 | b7d38981 | Dimitris Aragiorgis | |
373 | b7d38981 | Dimitris Aragiorgis | return mode, link, mac_prefix, tags
|
374 | b7d38981 | Dimitris Aragiorgis | |
375 | b7d38981 | Dimitris Aragiorgis | |
376 | b7d38981 | Dimitris Aragiorgis | def allocate_resource(res_type): |
377 | b7d38981 | Dimitris Aragiorgis | table = get_pool_table(res_type) |
378 | b7d38981 | Dimitris Aragiorgis | pool = table.get_pool() |
379 | b7d38981 | Dimitris Aragiorgis | value = pool.get() |
380 | b7d38981 | Dimitris Aragiorgis | pool.save() |
381 | b7d38981 | Dimitris Aragiorgis | return value
|
382 | b7d38981 | Dimitris Aragiorgis | |
383 | b7d38981 | Dimitris Aragiorgis | |
384 | b7d38981 | Dimitris Aragiorgis | def release_resource(res_type, value): |
385 | b7d38981 | Dimitris Aragiorgis | table = get_pool_table(res_type) |
386 | b7d38981 | Dimitris Aragiorgis | pool = table.get_pool() |
387 | b7d38981 | Dimitris Aragiorgis | pool.put(value) |
388 | b7d38981 | Dimitris Aragiorgis | pool.save() |
389 | b7d38981 | Dimitris Aragiorgis | |
390 | b7d38981 | Dimitris Aragiorgis | |
391 | b7d38981 | Dimitris Aragiorgis | def get_pool_table(res_type): |
392 | b7d38981 | Dimitris Aragiorgis | if res_type == "bridge": |
393 | b7d38981 | Dimitris Aragiorgis | return BridgePoolTable
|
394 | b7d38981 | Dimitris Aragiorgis | elif res_type == "mac_prefix": |
395 | b7d38981 | Dimitris Aragiorgis | return MacPrefixPoolTable
|
396 | b7d38981 | Dimitris Aragiorgis | else:
|
397 | b7d38981 | Dimitris Aragiorgis | raise Exception("Unknown resource type") |
398 | 55f562a4 | Kostas Papadimitriou | |
399 | 55f562a4 | Kostas Papadimitriou | |
400 | 55f562a4 | Kostas Papadimitriou | def get_existing_users(): |
401 | 55f562a4 | Kostas Papadimitriou | """
|
402 | 55f562a4 | Kostas Papadimitriou | Retrieve user ids stored in cyclades user agnostic models.
|
403 | 55f562a4 | Kostas Papadimitriou | """
|
404 | 55f562a4 | Kostas Papadimitriou | # also check PublicKeys a user with no servers/networks exist
|
405 | b47b110d | Kostas Papadimitriou | from synnefo.userdata.models import PublicKeyPair |
406 | 55f562a4 | Kostas Papadimitriou | from synnefo.db.models import VirtualMachine, Network |
407 | 55f562a4 | Kostas Papadimitriou | |
408 | 55f562a4 | Kostas Papadimitriou | keypairusernames = PublicKeyPair.objects.filter().values_list('user',
|
409 | e440e835 | Christos Stavrakakis | flat=True)
|
410 | 55f562a4 | Kostas Papadimitriou | serverusernames = VirtualMachine.objects.filter().values_list('userid',
|
411 | e440e835 | Christos Stavrakakis | flat=True)
|
412 | 55f562a4 | Kostas Papadimitriou | networkusernames = Network.objects.filter().values_list('userid',
|
413 | 55f562a4 | Kostas Papadimitriou | flat=True)
|
414 | 55f562a4 | Kostas Papadimitriou | |
415 | e440e835 | Christos Stavrakakis | return set(list(keypairusernames) + list(serverusernames) + |
416 | e440e835 | Christos Stavrakakis | list(networkusernames))
|
417 | 1b696c26 | Christos Stavrakakis | |
418 | 1b696c26 | Christos Stavrakakis | |
419 | 1b696c26 | Christos Stavrakakis | def vm_to_links(vm_id): |
420 | 73fbaad3 | Christos Stavrakakis | href = join_urls(SERVERS_URL, str(vm_id))
|
421 | 73fbaad3 | Christos Stavrakakis | return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
422 | 1b696c26 | Christos Stavrakakis | |
423 | 1b696c26 | Christos Stavrakakis | |
424 | 1b696c26 | Christos Stavrakakis | def network_to_links(network_id): |
425 | 73fbaad3 | Christos Stavrakakis | href = join_urls(NETWORKS_URL, str(network_id))
|
426 | 73fbaad3 | Christos Stavrakakis | return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
427 | 1b696c26 | Christos Stavrakakis | |
428 | 1b696c26 | Christos Stavrakakis | |
429 | 1b696c26 | Christos Stavrakakis | def flavor_to_links(flavor_id): |
430 | 73fbaad3 | Christos Stavrakakis | href = join_urls(FLAVORS_URL, str(flavor_id))
|
431 | 73fbaad3 | Christos Stavrakakis | return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
432 | 1b696c26 | Christos Stavrakakis | |
433 | 1b696c26 | Christos Stavrakakis | |
434 | 1b696c26 | Christos Stavrakakis | def image_to_links(image_id): |
435 | 73fbaad3 | Christos Stavrakakis | href = join_urls(IMAGES_URL, str(image_id))
|
436 | 73fbaad3 | Christos Stavrakakis | links = [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
437 | 1b696c26 | Christos Stavrakakis | links.append({"rel": "alternate", |
438 | 73fbaad3 | Christos Stavrakakis | "href": join_urls(IMAGES_PLANKTON_URL, str(image_id))}) |
439 | 1b696c26 | Christos Stavrakakis | return links
|
440 | 41a7fae7 | Christos Stavrakakis | |
441 | 32e4e343 | Christos Stavrakakis | |
442 | 41a7fae7 | Christos Stavrakakis | def start_action(vm, action, jobId): |
443 | 41a7fae7 | Christos Stavrakakis | vm.action = action |
444 | 41a7fae7 | Christos Stavrakakis | vm.backendjobid = jobId |
445 | 41a7fae7 | Christos Stavrakakis | vm.backendopcode = None
|
446 | 41a7fae7 | Christos Stavrakakis | vm.backendjobstatus = None
|
447 | 41a7fae7 | Christos Stavrakakis | vm.backendlogmsg = None
|
448 | 41a7fae7 | Christos Stavrakakis | vm.save() |