root / snf-cyclades-app / synnefo / api / util.py @ 12e539f0
History | View | Annotate | Download (16.6 kB)
1 | 6ef51e9f | Giorgos Verigakis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
|
---|---|---|---|
2 | d1387ed7 | Christodoulos Psaltis | #
|
3 | adee02b8 | Giorgos Verigakis | # Redistribution and use in source and binary forms, with or
|
4 | adee02b8 | Giorgos Verigakis | # without modification, are permitted provided that the following
|
5 | adee02b8 | Giorgos Verigakis | # conditions are met:
|
6 | d1387ed7 | Christodoulos Psaltis | #
|
7 | adee02b8 | Giorgos Verigakis | # 1. Redistributions of source code must retain the above
|
8 | adee02b8 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
|
9 | adee02b8 | Giorgos Verigakis | # disclaimer.
|
10 | d1387ed7 | Christodoulos Psaltis | #
|
11 | adee02b8 | Giorgos Verigakis | # 2. Redistributions in binary form must reproduce the above
|
12 | adee02b8 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
|
13 | adee02b8 | Giorgos Verigakis | # disclaimer in the documentation and/or other materials
|
14 | adee02b8 | Giorgos Verigakis | # provided with the distribution.
|
15 | d1387ed7 | Christodoulos Psaltis | #
|
16 | adee02b8 | Giorgos Verigakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 | adee02b8 | Giorgos Verigakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 | adee02b8 | Giorgos Verigakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 | adee02b8 | Giorgos Verigakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 | adee02b8 | Giorgos Verigakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 | adee02b8 | Giorgos Verigakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 | adee02b8 | Giorgos Verigakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 | adee02b8 | Giorgos Verigakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 | adee02b8 | Giorgos Verigakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 | adee02b8 | Giorgos Verigakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 | adee02b8 | Giorgos Verigakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 | adee02b8 | Giorgos Verigakis | # POSSIBILITY OF SUCH DAMAGE.
|
28 | d1387ed7 | Christodoulos Psaltis | #
|
29 | adee02b8 | Giorgos Verigakis | # The views and conclusions contained in the software and
|
30 | adee02b8 | Giorgos Verigakis | # documentation are those of the authors and should not be
|
31 | adee02b8 | Giorgos Verigakis | # interpreted as representing official policies, either expressed
|
32 | adee02b8 | Giorgos Verigakis | # or implied, of GRNET S.A.
|
33 | 7e2f9d4b | Giorgos Verigakis | |
34 | 9ae613af | Christos Stavrakakis | import ipaddr |
35 | c738c935 | Giorgos Verigakis | |
36 | dca7553e | Christos Stavrakakis | from base64 import b64encode, b64decode |
37 | c738c935 | Giorgos Verigakis | from hashlib import sha256 |
38 | 2035039b | Giorgos Verigakis | from logging import getLogger |
39 | d8e50a39 | Giorgos Verigakis | from random import choice |
40 | dca2a31f | Giorgos Verigakis | from string import digits, lowercase, uppercase |
41 | 2035039b | Giorgos Verigakis | |
42 | c738c935 | Giorgos Verigakis | from Crypto.Cipher import AES |
43 | 529178b1 | Giorgos Verigakis | |
44 | d8e50a39 | Giorgos Verigakis | from django.conf import settings |
45 | 7e2f9d4b | Giorgos Verigakis | from django.http import HttpResponse |
46 | 7e2f9d4b | Giorgos Verigakis | from django.template.loader import render_to_string |
47 | 29a59bc1 | Giorgos Verigakis | from django.utils import simplejson as json |
48 | d3406fbc | Christos Stavrakakis | from django.db.models import Q |
49 | 7e2f9d4b | Giorgos Verigakis | |
50 | bd40abfa | Christos Stavrakakis | from snf_django.lib.api import faults |
51 | 6ef51e9f | Giorgos Verigakis | from synnefo.db.models import (Flavor, VirtualMachine, VirtualMachineMetadata, |
52 | 7fede91e | Christos Stavrakakis | Network, BackendNetwork, NetworkInterface, |
53 | f8675683 | Christos Stavrakakis | BridgePoolTable, MacPrefixPoolTable, Backend, |
54 | f8675683 | Christos Stavrakakis | FloatingIP) |
55 | adc46059 | Christos Stavrakakis | from synnefo.db.pools import EmptyPool |
56 | 6dd70a5c | Christos Stavrakakis | |
57 | b3fd98ae | Christos Stavrakakis | from synnefo.plankton.utils import image_backend |
58 | b14725eb | Christos Stavrakakis | from synnefo.settings import MAX_CIDR_BLOCK |
59 | 9e98ba3c | Giorgos Verigakis | |
60 | 1b696c26 | Christos Stavrakakis | from synnefo.cyclades_settings import cyclades_services, BASE_HOST |
61 | 1b696c26 | Christos Stavrakakis | from synnefo.lib.services import get_service_path |
62 | 1b696c26 | Christos Stavrakakis | from synnefo.lib import join_urls |
63 | 1b696c26 | Christos Stavrakakis | |
64 | 1b696c26 | Christos Stavrakakis | COMPUTE_URL = \ |
65 | 1b696c26 | Christos Stavrakakis | join_urls(BASE_HOST, |
66 | 1b696c26 | Christos Stavrakakis | get_service_path(cyclades_services, "compute", version="v2.0")) |
67 | 1b696c26 | Christos Stavrakakis | SERVERS_URL = join_urls(COMPUTE_URL, "servers/")
|
68 | 1b696c26 | Christos Stavrakakis | NETWORKS_URL = join_urls(COMPUTE_URL, "networks/")
|
69 | 1b696c26 | Christos Stavrakakis | FLAVORS_URL = join_urls(COMPUTE_URL, "flavors/")
|
70 | 1b696c26 | Christos Stavrakakis | IMAGES_URL = join_urls(COMPUTE_URL, "images/")
|
71 | 1b696c26 | Christos Stavrakakis | PLANKTON_URL = \ |
72 | 1b696c26 | Christos Stavrakakis | join_urls(BASE_HOST, |
73 | 1b696c26 | Christos Stavrakakis | get_service_path(cyclades_services, "image", version="v1.0")) |
74 | 1b696c26 | Christos Stavrakakis | IMAGES_PLANKTON_URL = join_urls(PLANKTON_URL, "images/")
|
75 | 1b696c26 | Christos Stavrakakis | |
76 | 9e98ba3c | Giorgos Verigakis | |
77 | 9e98ba3c | Giorgos Verigakis | log = getLogger('synnefo.api')
|
78 | 9e98ba3c | Giorgos Verigakis | |
79 | 7e2f9d4b | Giorgos Verigakis | |
80 | dca2a31f | Giorgos Verigakis | def random_password(): |
81 | dca2a31f | Giorgos Verigakis | """Generates a random password
|
82 | ce55f211 | Kostas Papadimitriou |
|
83 | 62eac5a6 | Giorgos Verigakis | We generate a windows compliant password: it must contain at least
|
84 | dca2a31f | Giorgos Verigakis | one charachter from each of the groups: upper case, lower case, digits.
|
85 | dca2a31f | Giorgos Verigakis | """
|
86 | ce55f211 | Kostas Papadimitriou | |
87 | dca2a31f | Giorgos Verigakis | pool = lowercase + uppercase + digits |
88 | dca2a31f | Giorgos Verigakis | lowerset = set(lowercase)
|
89 | dca2a31f | Giorgos Verigakis | upperset = set(uppercase)
|
90 | dca2a31f | Giorgos Verigakis | digitset = set(digits)
|
91 | dca2a31f | Giorgos Verigakis | length = 10
|
92 | ce55f211 | Kostas Papadimitriou | |
93 | 62eac5a6 | Giorgos Verigakis | password = ''.join(choice(pool) for i in range(length - 2)) |
94 | ce55f211 | Kostas Papadimitriou | |
95 | 62eac5a6 | Giorgos Verigakis | # Make sure the password is compliant
|
96 | 62eac5a6 | Giorgos Verigakis | chars = set(password)
|
97 | 62eac5a6 | Giorgos Verigakis | if not chars & lowerset: |
98 | 62eac5a6 | Giorgos Verigakis | password += choice(lowercase) |
99 | 62eac5a6 | Giorgos Verigakis | if not chars & upperset: |
100 | 62eac5a6 | Giorgos Verigakis | password += choice(uppercase) |
101 | 62eac5a6 | Giorgos Verigakis | if not chars & digitset: |
102 | 62eac5a6 | Giorgos Verigakis | password += choice(digits) |
103 | ce55f211 | Kostas Papadimitriou | |
104 | 62eac5a6 | Giorgos Verigakis | # Pad if necessary to reach required length
|
105 | 62eac5a6 | Giorgos Verigakis | password += ''.join(choice(pool) for i in range(length - len(password))) |
106 | ce55f211 | Kostas Papadimitriou | |
107 | dca2a31f | Giorgos Verigakis | return password
|
108 | dca2a31f | Giorgos Verigakis | |
109 | d8e50a39 | Giorgos Verigakis | |
110 | c738c935 | Giorgos Verigakis | def zeropad(s): |
111 | c738c935 | Giorgos Verigakis | """Add zeros at the end of a string in order to make its length
|
112 | c738c935 | Giorgos Verigakis | a multiple of 16."""
|
113 | d1387ed7 | Christodoulos Psaltis | |
114 | c738c935 | Giorgos Verigakis | npad = 16 - len(s) % 16 |
115 | c738c935 | Giorgos Verigakis | return s + '\x00' * npad |
116 | c738c935 | Giorgos Verigakis | |
117 | a08e4270 | Vangelis Koukis | |
118 | c738c935 | Giorgos Verigakis | def encrypt(plaintext): |
119 | c738c935 | Giorgos Verigakis | # Make sure key is 32 bytes long
|
120 | c738c935 | Giorgos Verigakis | key = sha256(settings.SECRET_KEY).digest() |
121 | d1387ed7 | Christodoulos Psaltis | |
122 | c738c935 | Giorgos Verigakis | aes = AES.new(key) |
123 | c738c935 | Giorgos Verigakis | enc = aes.encrypt(zeropad(plaintext)) |
124 | c738c935 | Giorgos Verigakis | return b64encode(enc)
|
125 | c738c935 | Giorgos Verigakis | |
126 | 7e2f9d4b | Giorgos Verigakis | |
127 | 7f2dbcad | Christos Stavrakakis | def get_vm(server_id, user_id, for_update=False, non_deleted=False, |
128 | 7f2dbcad | Christos Stavrakakis | non_suspended=False):
|
129 | e221ade2 | Christos Stavrakakis | """Find a VirtualMachine instance based on ID and owner."""
|
130 | aa197ee4 | Vangelis Koukis | |
131 | d8e50a39 | Giorgos Verigakis | try:
|
132 | d8e50a39 | Giorgos Verigakis | server_id = int(server_id)
|
133 | 7f2dbcad | Christos Stavrakakis | servers = VirtualMachine.objects |
134 | 7f2dbcad | Christos Stavrakakis | if for_update:
|
135 | 7f2dbcad | Christos Stavrakakis | servers = servers.select_for_update() |
136 | 7f2dbcad | Christos Stavrakakis | vm = servers.get(id=server_id, userid=user_id) |
137 | e221ade2 | Christos Stavrakakis | if non_deleted and vm.deleted: |
138 | 5b0832fc | Christos Stavrakakis | raise faults.BadRequest("Server has been deleted.") |
139 | e221ade2 | Christos Stavrakakis | if non_suspended and vm.suspended: |
140 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden("Administratively Suspended VM") |
141 | 3a522cff | Christos Stavrakakis | return vm
|
142 | d8e50a39 | Giorgos Verigakis | except ValueError: |
143 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Invalid server ID.') |
144 | d8e50a39 | Giorgos Verigakis | except VirtualMachine.DoesNotExist:
|
145 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Server not found.') |
146 | d8e50a39 | Giorgos Verigakis | |
147 | 7f2dbcad | Christos Stavrakakis | |
148 | 40777cc8 | Giorgos Verigakis | def get_vm_meta(vm, key): |
149 | d8e50a39 | Giorgos Verigakis | """Return a VirtualMachineMetadata instance or raise ItemNotFound."""
|
150 | aa197ee4 | Vangelis Koukis | |
151 | d8e50a39 | Giorgos Verigakis | try:
|
152 | 40777cc8 | Giorgos Verigakis | return VirtualMachineMetadata.objects.get(meta_key=key, vm=vm)
|
153 | d8e50a39 | Giorgos Verigakis | except VirtualMachineMetadata.DoesNotExist:
|
154 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Metadata key not found.') |
155 | d8e50a39 | Giorgos Verigakis | |
156 | a08e4270 | Vangelis Koukis | |
157 | 6ef51e9f | Giorgos Verigakis | def get_image(image_id, user_id): |
158 | d8e50a39 | Giorgos Verigakis | """Return an Image instance or raise ItemNotFound."""
|
159 | aa197ee4 | Vangelis Koukis | |
160 | b3fd98ae | Christos Stavrakakis | with image_backend(user_id) as backend: |
161 | cda71050 | Christos Stavrakakis | return backend.get_image(image_id)
|
162 | 3a9b3cde | Giorgos Verigakis | |
163 | a08e4270 | Vangelis Koukis | |
164 | dca7553e | Christos Stavrakakis | def get_image_dict(image_id, user_id): |
165 | dca7553e | Christos Stavrakakis | image = {} |
166 | dca7553e | Christos Stavrakakis | img = get_image(image_id, user_id) |
167 | dca7553e | Christos Stavrakakis | properties = img.get('properties', {})
|
168 | bcd80cd9 | Christos Stavrakakis | image["id"] = img["id"] |
169 | bcd80cd9 | Christos Stavrakakis | image["name"] = img["name"] |
170 | dca7553e | Christos Stavrakakis | image['backend_id'] = img['location'] |
171 | dca7553e | Christos Stavrakakis | image['format'] = img['disk_format'] |
172 | e440e835 | Christos Stavrakakis | image['metadata'] = dict((key.upper(), val) |
173 | dca7553e | Christos Stavrakakis | for key, val in properties.items()) |
174 | 2cb812be | Christos Stavrakakis | image['checksum'] = img['checksum'] |
175 | 2cb812be | Christos Stavrakakis | |
176 | dca7553e | Christos Stavrakakis | return image
|
177 | dca7553e | Christos Stavrakakis | |
178 | dca7553e | Christos Stavrakakis | |
179 | aa8230bd | Christos Stavrakakis | def get_flavor(flavor_id, include_deleted=False): |
180 | 529178b1 | Giorgos Verigakis | """Return a Flavor instance or raise ItemNotFound."""
|
181 | aa197ee4 | Vangelis Koukis | |
182 | 529178b1 | Giorgos Verigakis | try:
|
183 | 529178b1 | Giorgos Verigakis | flavor_id = int(flavor_id)
|
184 | aa8230bd | Christos Stavrakakis | if include_deleted:
|
185 | aa8230bd | Christos Stavrakakis | return Flavor.objects.get(id=flavor_id)
|
186 | aa8230bd | Christos Stavrakakis | else:
|
187 | aa8230bd | Christos Stavrakakis | return Flavor.objects.get(id=flavor_id, deleted=include_deleted)
|
188 | 6ef51e9f | Giorgos Verigakis | except (ValueError, Flavor.DoesNotExist): |
189 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Flavor not found.') |
190 | d8e50a39 | Giorgos Verigakis | |
191 | a08e4270 | Vangelis Koukis | |
192 | 9dcb5b8a | Christos Stavrakakis | def get_flavor_provider(flavor): |
193 | 9dcb5b8a | Christos Stavrakakis | """Extract provider from disk template.
|
194 | 9dcb5b8a | Christos Stavrakakis |
|
195 | 9dcb5b8a | Christos Stavrakakis | Provider for `ext` disk_template is encoded in the disk template
|
196 | 9dcb5b8a | Christos Stavrakakis | name, which is formed `ext_<provider_name>`. Provider is None
|
197 | 9dcb5b8a | Christos Stavrakakis | for all other disk templates.
|
198 | 9dcb5b8a | Christos Stavrakakis |
|
199 | 9dcb5b8a | Christos Stavrakakis | """
|
200 | 9dcb5b8a | Christos Stavrakakis | disk_template = flavor.disk_template |
201 | 9dcb5b8a | Christos Stavrakakis | provider = None
|
202 | 9dcb5b8a | Christos Stavrakakis | if disk_template.startswith("ext"): |
203 | 9dcb5b8a | Christos Stavrakakis | disk_template, provider = disk_template.split("_", 1) |
204 | 9dcb5b8a | Christos Stavrakakis | return disk_template, provider
|
205 | 9dcb5b8a | Christos Stavrakakis | |
206 | 9dcb5b8a | Christos Stavrakakis | |
207 | 9e8be4fb | Christos Stavrakakis | def get_network(network_id, user_id, for_update=False, non_deleted=False): |
208 | e2ee7808 | Giorgos Verigakis | """Return a Network instance or raise ItemNotFound."""
|
209 | aa197ee4 | Vangelis Koukis | |
210 | e2ee7808 | Giorgos Verigakis | try:
|
211 | 7fede91e | Christos Stavrakakis | network_id = int(network_id)
|
212 | d3406fbc | Christos Stavrakakis | objects = Network.objects |
213 | d2e73c0c | Christos Stavrakakis | if for_update:
|
214 | d3406fbc | Christos Stavrakakis | objects = objects.select_for_update() |
215 | 9e8be4fb | Christos Stavrakakis | network = objects.get(Q(userid=user_id) | Q(public=True),
|
216 | 9e8be4fb | Christos Stavrakakis | id=network_id) |
217 | 9e8be4fb | Christos Stavrakakis | if non_deleted and network.deleted: |
218 | f8675683 | Christos Stavrakakis | raise faults.BadRequest("Network has been deleted.") |
219 | 9e8be4fb | Christos Stavrakakis | return network
|
220 | 6ef51e9f | Giorgos Verigakis | except (ValueError, Network.DoesNotExist): |
221 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Network not found.') |
222 | e2ee7808 | Giorgos Verigakis | |
223 | a08e4270 | Vangelis Koukis | |
224 | f8675683 | Christos Stavrakakis | def get_floating_ip(user_id, ipv4, for_update=False): |
225 | f8675683 | Christos Stavrakakis | try:
|
226 | f8675683 | Christos Stavrakakis | objects = FloatingIP.objects |
227 | f8675683 | Christos Stavrakakis | if for_update:
|
228 | f8675683 | Christos Stavrakakis | objects = objects.select_for_update() |
229 | f8675683 | Christos Stavrakakis | return objects.get(userid=user_id, ipv4=ipv4, deleted=False) |
230 | f8675683 | Christos Stavrakakis | except FloatingIP.DoesNotExist:
|
231 | f8675683 | Christos Stavrakakis | raise faults.ItemNotFound("Floating IP does not exist.") |
232 | f8675683 | Christos Stavrakakis | |
233 | f8675683 | Christos Stavrakakis | |
234 | 5aeb4e93 | Christos Stavrakakis | def validate_network_params(subnet=None, gateway=None, subnet6=None, |
235 | 5aeb4e93 | Christos Stavrakakis | gateway6=None):
|
236 | 5aeb4e93 | Christos Stavrakakis | if (subnet is None) and (subnet6 is None): |
237 | 5aeb4e93 | Christos Stavrakakis | raise faults.BadRequest("subnet or subnet6 is required") |
238 | 9ae613af | Christos Stavrakakis | |
239 | 5aeb4e93 | Christos Stavrakakis | if subnet:
|
240 | 9ae613af | Christos Stavrakakis | try:
|
241 | 5aeb4e93 | Christos Stavrakakis | # Use strict option to not all subnets with host bits set
|
242 | 5aeb4e93 | Christos Stavrakakis | network = ipaddr.IPv4Network(subnet, strict=True)
|
243 | 9ae613af | Christos Stavrakakis | except ValueError: |
244 | 5aeb4e93 | Christos Stavrakakis | raise faults.BadRequest("Invalid network IPv4 subnet") |
245 | 5aeb4e93 | Christos Stavrakakis | |
246 | 5aeb4e93 | Christos Stavrakakis | # Check that network size is allowed!
|
247 | 5aeb4e93 | Christos Stavrakakis | if not validate_network_size(network.prefixlen): |
248 | 5aeb4e93 | Christos Stavrakakis | raise faults.OverLimit(message="Unsupported network size", |
249 | 5aeb4e93 | Christos Stavrakakis | details="Network mask must be in range"
|
250 | 5aeb4e93 | Christos Stavrakakis | " (%s, 29]" % MAX_CIDR_BLOCK)
|
251 | 5aeb4e93 | Christos Stavrakakis | if gateway: # Check that gateway belongs to network |
252 | 5aeb4e93 | Christos Stavrakakis | try:
|
253 | 5aeb4e93 | Christos Stavrakakis | gateway = ipaddr.IPv4Address(gateway) |
254 | 5aeb4e93 | Christos Stavrakakis | except ValueError: |
255 | 5aeb4e93 | Christos Stavrakakis | raise faults.BadRequest("Invalid network IPv4 gateway") |
256 | 5aeb4e93 | Christos Stavrakakis | if not gateway in network: |
257 | 5aeb4e93 | Christos Stavrakakis | raise faults.BadRequest("Invalid network IPv4 gateway") |
258 | 9ae613af | Christos Stavrakakis | |
259 | 9ae613af | Christos Stavrakakis | if subnet6:
|
260 | 9ae613af | Christos Stavrakakis | try:
|
261 | 9ae613af | Christos Stavrakakis | # Use strict option to not all subnets with host bits set
|
262 | 9ae613af | Christos Stavrakakis | network6 = ipaddr.IPv6Network(subnet6, strict=True)
|
263 | 9ae613af | Christos Stavrakakis | except ValueError: |
264 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Invalid network IPv6 subnet") |
265 | 9ae613af | Christos Stavrakakis | if gateway6:
|
266 | 9ae613af | Christos Stavrakakis | try:
|
267 | 9ae613af | Christos Stavrakakis | gateway6 = ipaddr.IPv6Address(gateway6) |
268 | 9ae613af | Christos Stavrakakis | except ValueError: |
269 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Invalid network IPv6 gateway") |
270 | 9ae613af | Christos Stavrakakis | if not gateway6 in network6: |
271 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Invalid network IPv6 gateway") |
272 | d368ec0c | Christos Stavrakakis | |
273 | d368ec0c | Christos Stavrakakis | |
274 | b14725eb | Christos Stavrakakis | def validate_network_size(cidr_block): |
275 | b14725eb | Christos Stavrakakis | """Return True if network size is allowed."""
|
276 | b14725eb | Christos Stavrakakis | return cidr_block <= 29 and cidr_block > MAX_CIDR_BLOCK |
277 | b14725eb | Christos Stavrakakis | |
278 | b14725eb | Christos Stavrakakis | |
279 | adc46059 | Christos Stavrakakis | def allocate_public_address(backend): |
280 | 660b9f3b | Christos Stavrakakis | """Get a public IP for any available network of a backend."""
|
281 | 85919a0f | Christos Stavrakakis | # Guarantee exclusive access to backend, because accessing the IP pools of
|
282 | 85919a0f | Christos Stavrakakis | # the backend networks may result in a deadlock with backend allocator
|
283 | 85919a0f | Christos Stavrakakis | # which also checks that backend networks have a free IP.
|
284 | 85919a0f | Christos Stavrakakis | backend = Backend.objects.select_for_update().get(id=backend.id) |
285 | 660b9f3b | Christos Stavrakakis | public_networks = backend_public_networks(backend) |
286 | 660b9f3b | Christos Stavrakakis | return get_free_ip(public_networks)
|
287 | dca7553e | Christos Stavrakakis | |
288 | dca7553e | Christos Stavrakakis | |
289 | 7fede91e | Christos Stavrakakis | def backend_public_networks(backend): |
290 | 7fede91e | Christos Stavrakakis | """Return available public networks of the backend.
|
291 | 7fede91e | Christos Stavrakakis |
|
292 | 7fede91e | Christos Stavrakakis | Iterator for non-deleted public networks that are available
|
293 | 7fede91e | Christos Stavrakakis | to the specified backend.
|
294 | 7fede91e | Christos Stavrakakis |
|
295 | 7fede91e | Christos Stavrakakis | """
|
296 | 660b9f3b | Christos Stavrakakis | bnets = BackendNetwork.objects.filter(backend=backend, |
297 | 660b9f3b | Christos Stavrakakis | network__public=True,
|
298 | 660b9f3b | Christos Stavrakakis | network__deleted=False,
|
299 | 12e539f0 | Christos Stavrakakis | network__floating_ip_pool=False,
|
300 | 12e539f0 | Christos Stavrakakis | network__subnet__isnull=False,
|
301 | 660b9f3b | Christos Stavrakakis | network__drained=False)
|
302 | 660b9f3b | Christos Stavrakakis | return [b.network for b in bnets] |
303 | 660b9f3b | Christos Stavrakakis | |
304 | 660b9f3b | Christos Stavrakakis | |
305 | 660b9f3b | Christos Stavrakakis | def get_free_ip(networks): |
306 | 660b9f3b | Christos Stavrakakis | for network in networks: |
307 | 660b9f3b | Christos Stavrakakis | try:
|
308 | 660b9f3b | Christos Stavrakakis | address = get_network_free_address(network) |
309 | 660b9f3b | Christos Stavrakakis | return network, address
|
310 | 660b9f3b | Christos Stavrakakis | except faults.OverLimit:
|
311 | 660b9f3b | Christos Stavrakakis | pass
|
312 | 660b9f3b | Christos Stavrakakis | msg = "Can not allocate public IP. Public networks are full."
|
313 | 660b9f3b | Christos Stavrakakis | log.error(msg) |
314 | 660b9f3b | Christos Stavrakakis | raise faults.OverLimit(msg)
|
315 | 7fede91e | Christos Stavrakakis | |
316 | 7fede91e | Christos Stavrakakis | |
317 | 7fede91e | Christos Stavrakakis | def get_network_free_address(network): |
318 | 34c03a51 | Christos Stavrakakis | """Reserve an IP address from the IP Pool of the network."""
|
319 | 7fede91e | Christos Stavrakakis | |
320 | fdc94944 | Christos Stavrakakis | pool = network.get_pool() |
321 | 34c03a51 | Christos Stavrakakis | try:
|
322 | 34c03a51 | Christos Stavrakakis | address = pool.get() |
323 | 34c03a51 | Christos Stavrakakis | except EmptyPool:
|
324 | 34c03a51 | Christos Stavrakakis | raise faults.OverLimit("Network %s is full." % network.backend_id) |
325 | 7fede91e | Christos Stavrakakis | pool.save() |
326 | 7fede91e | Christos Stavrakakis | return address
|
327 | 7fede91e | Christos Stavrakakis | |
328 | 7fede91e | Christos Stavrakakis | |
329 | d44c236b | Giorgos Verigakis | def get_nic(machine, network): |
330 | d44c236b | Giorgos Verigakis | try:
|
331 | d44c236b | Giorgos Verigakis | return NetworkInterface.objects.get(machine=machine, network=network)
|
332 | d44c236b | Giorgos Verigakis | except NetworkInterface.DoesNotExist:
|
333 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Server not connected to this network.') |
334 | d44c236b | Giorgos Verigakis | |
335 | 7fede91e | Christos Stavrakakis | |
336 | 08b079e2 | Stavros Sachtouris | def get_nic_from_index(vm, nic_index): |
337 | 08b079e2 | Stavros Sachtouris | """Returns the nic_index-th nic of a vm
|
338 | 08b079e2 | Stavros Sachtouris | Error Response Codes: itemNotFound (404), badMediaType (415)
|
339 | 08b079e2 | Stavros Sachtouris | """
|
340 | 08b079e2 | Stavros Sachtouris | matching_nics = vm.nics.filter(index=nic_index) |
341 | 08b079e2 | Stavros Sachtouris | matching_nics_len = len(matching_nics)
|
342 | 08b079e2 | Stavros Sachtouris | if matching_nics_len < 1: |
343 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('NIC not found on VM') |
344 | 08b079e2 | Stavros Sachtouris | elif matching_nics_len > 1: |
345 | bd40abfa | Christos Stavrakakis | raise faults.BadMediaType('NIC index conflict on VM') |
346 | 08b079e2 | Stavros Sachtouris | nic = matching_nics[0]
|
347 | 08b079e2 | Stavros Sachtouris | return nic
|
348 | e2ee7808 | Giorgos Verigakis | |
349 | 7fede91e | Christos Stavrakakis | |
350 | 432fc8c3 | Giorgos Verigakis | def render_metadata(request, metadata, use_values=False, status=200): |
351 | 432fc8c3 | Giorgos Verigakis | if request.serialization == 'xml': |
352 | 432fc8c3 | Giorgos Verigakis | data = render_to_string('metadata.xml', {'metadata': metadata}) |
353 | 432fc8c3 | Giorgos Verigakis | else:
|
354 | b36f78fa | Giorgos Verigakis | if use_values:
|
355 | b36f78fa | Giorgos Verigakis | d = {'metadata': {'values': metadata}} |
356 | b36f78fa | Giorgos Verigakis | else:
|
357 | b36f78fa | Giorgos Verigakis | d = {'metadata': metadata}
|
358 | 432fc8c3 | Giorgos Verigakis | data = json.dumps(d) |
359 | 432fc8c3 | Giorgos Verigakis | return HttpResponse(data, status=status)
|
360 | 432fc8c3 | Giorgos Verigakis | |
361 | a08e4270 | Vangelis Koukis | |
362 | 432fc8c3 | Giorgos Verigakis | def render_meta(request, meta, status=200): |
363 | 432fc8c3 | Giorgos Verigakis | if request.serialization == 'xml': |
364 | 32e4e343 | Christos Stavrakakis | key, val = meta.items()[0]
|
365 | 6ef51e9f | Giorgos Verigakis | data = render_to_string('meta.xml', dict(key=key, val=val)) |
366 | 432fc8c3 | Giorgos Verigakis | else:
|
367 | 6ef51e9f | Giorgos Verigakis | data = json.dumps(dict(meta=meta))
|
368 | 432fc8c3 | Giorgos Verigakis | return HttpResponse(data, status=status)
|
369 | 432fc8c3 | Giorgos Verigakis | |
370 | a08e4270 | Vangelis Koukis | |
371 | 08b079e2 | Stavros Sachtouris | def construct_nic_id(nic): |
372 | 08b079e2 | Stavros Sachtouris | return "-".join(["nic", unicode(nic.machine.id), unicode(nic.index)]) |
373 | 6dd70a5c | Christos Stavrakakis | |
374 | 6dd70a5c | Christos Stavrakakis | |
375 | dca7553e | Christos Stavrakakis | def verify_personality(personality): |
376 | 6ec4694f | Christos Stavrakakis | """Verify that a a list of personalities is well formed"""
|
377 | 006c6249 | Christos Stavrakakis | if len(personality) > settings.MAX_PERSONALITY: |
378 | bd40abfa | Christos Stavrakakis | raise faults.OverLimit("Maximum number of personalities" |
379 | 32e4e343 | Christos Stavrakakis | " exceeded")
|
380 | dca7553e | Christos Stavrakakis | for p in personality: |
381 | dca7553e | Christos Stavrakakis | # Verify that personalities are well-formed
|
382 | dca7553e | Christos Stavrakakis | try:
|
383 | dca7553e | Christos Stavrakakis | assert isinstance(p, dict) |
384 | dca7553e | Christos Stavrakakis | keys = set(p.keys())
|
385 | dca7553e | Christos Stavrakakis | allowed = set(['contents', 'group', 'mode', 'owner', 'path']) |
386 | dca7553e | Christos Stavrakakis | assert keys.issubset(allowed)
|
387 | dca7553e | Christos Stavrakakis | contents = p['contents']
|
388 | dca7553e | Christos Stavrakakis | if len(contents) > settings.MAX_PERSONALITY_SIZE: |
389 | dca7553e | Christos Stavrakakis | # No need to decode if contents already exceed limit
|
390 | bd40abfa | Christos Stavrakakis | raise faults.OverLimit("Maximum size of personality exceeded") |
391 | dca7553e | Christos Stavrakakis | if len(b64decode(contents)) > settings.MAX_PERSONALITY_SIZE: |
392 | bd40abfa | Christos Stavrakakis | raise faults.OverLimit("Maximum size of personality exceeded") |
393 | dca7553e | Christos Stavrakakis | except AssertionError: |
394 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Malformed personality in request") |
395 | 2a599282 | Christos Stavrakakis | |
396 | 2a599282 | Christos Stavrakakis | |
397 | b7d38981 | Dimitris Aragiorgis | def values_from_flavor(flavor): |
398 | b7d38981 | Dimitris Aragiorgis | """Get Ganeti connectivity info from flavor type.
|
399 | b7d38981 | Dimitris Aragiorgis |
|
400 | b7d38981 | Dimitris Aragiorgis | If link or mac_prefix equals to "pool", then the resources
|
401 | b7d38981 | Dimitris Aragiorgis | are allocated from the corresponding Pools.
|
402 | b7d38981 | Dimitris Aragiorgis |
|
403 | b7d38981 | Dimitris Aragiorgis | """
|
404 | b7d38981 | Dimitris Aragiorgis | try:
|
405 | b7d38981 | Dimitris Aragiorgis | flavor = Network.FLAVORS[flavor] |
406 | b7d38981 | Dimitris Aragiorgis | except KeyError: |
407 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest("Unknown network flavor") |
408 | b7d38981 | Dimitris Aragiorgis | |
409 | b7d38981 | Dimitris Aragiorgis | mode = flavor.get("mode")
|
410 | b7d38981 | Dimitris Aragiorgis | |
411 | b7d38981 | Dimitris Aragiorgis | link = flavor.get("link")
|
412 | b7d38981 | Dimitris Aragiorgis | if link == "pool": |
413 | b7d38981 | Dimitris Aragiorgis | link = allocate_resource("bridge")
|
414 | b7d38981 | Dimitris Aragiorgis | |
415 | b7d38981 | Dimitris Aragiorgis | mac_prefix = flavor.get("mac_prefix")
|
416 | b7d38981 | Dimitris Aragiorgis | if mac_prefix == "pool": |
417 | b7d38981 | Dimitris Aragiorgis | mac_prefix = allocate_resource("mac_prefix")
|
418 | b7d38981 | Dimitris Aragiorgis | |
419 | b7d38981 | Dimitris Aragiorgis | tags = flavor.get("tags")
|
420 | b7d38981 | Dimitris Aragiorgis | |
421 | b7d38981 | Dimitris Aragiorgis | return mode, link, mac_prefix, tags
|
422 | b7d38981 | Dimitris Aragiorgis | |
423 | b7d38981 | Dimitris Aragiorgis | |
424 | b7d38981 | Dimitris Aragiorgis | def allocate_resource(res_type): |
425 | b7d38981 | Dimitris Aragiorgis | table = get_pool_table(res_type) |
426 | b7d38981 | Dimitris Aragiorgis | pool = table.get_pool() |
427 | b7d38981 | Dimitris Aragiorgis | value = pool.get() |
428 | b7d38981 | Dimitris Aragiorgis | pool.save() |
429 | b7d38981 | Dimitris Aragiorgis | return value
|
430 | b7d38981 | Dimitris Aragiorgis | |
431 | b7d38981 | Dimitris Aragiorgis | |
432 | b7d38981 | Dimitris Aragiorgis | def release_resource(res_type, value): |
433 | b7d38981 | Dimitris Aragiorgis | table = get_pool_table(res_type) |
434 | b7d38981 | Dimitris Aragiorgis | pool = table.get_pool() |
435 | b7d38981 | Dimitris Aragiorgis | pool.put(value) |
436 | b7d38981 | Dimitris Aragiorgis | pool.save() |
437 | b7d38981 | Dimitris Aragiorgis | |
438 | b7d38981 | Dimitris Aragiorgis | |
439 | b7d38981 | Dimitris Aragiorgis | def get_pool_table(res_type): |
440 | b7d38981 | Dimitris Aragiorgis | if res_type == "bridge": |
441 | b7d38981 | Dimitris Aragiorgis | return BridgePoolTable
|
442 | b7d38981 | Dimitris Aragiorgis | elif res_type == "mac_prefix": |
443 | b7d38981 | Dimitris Aragiorgis | return MacPrefixPoolTable
|
444 | b7d38981 | Dimitris Aragiorgis | else:
|
445 | b7d38981 | Dimitris Aragiorgis | raise Exception("Unknown resource type") |
446 | 55f562a4 | Kostas Papadimitriou | |
447 | 55f562a4 | Kostas Papadimitriou | |
448 | 55f562a4 | Kostas Papadimitriou | def get_existing_users(): |
449 | 55f562a4 | Kostas Papadimitriou | """
|
450 | 55f562a4 | Kostas Papadimitriou | Retrieve user ids stored in cyclades user agnostic models.
|
451 | 55f562a4 | Kostas Papadimitriou | """
|
452 | 55f562a4 | Kostas Papadimitriou | # also check PublicKeys a user with no servers/networks exist
|
453 | b47b110d | Kostas Papadimitriou | from synnefo.userdata.models import PublicKeyPair |
454 | 55f562a4 | Kostas Papadimitriou | from synnefo.db.models import VirtualMachine, Network |
455 | 55f562a4 | Kostas Papadimitriou | |
456 | 55f562a4 | Kostas Papadimitriou | keypairusernames = PublicKeyPair.objects.filter().values_list('user',
|
457 | e440e835 | Christos Stavrakakis | flat=True)
|
458 | 55f562a4 | Kostas Papadimitriou | serverusernames = VirtualMachine.objects.filter().values_list('userid',
|
459 | e440e835 | Christos Stavrakakis | flat=True)
|
460 | 55f562a4 | Kostas Papadimitriou | networkusernames = Network.objects.filter().values_list('userid',
|
461 | 55f562a4 | Kostas Papadimitriou | flat=True)
|
462 | 55f562a4 | Kostas Papadimitriou | |
463 | e440e835 | Christos Stavrakakis | return set(list(keypairusernames) + list(serverusernames) + |
464 | e440e835 | Christos Stavrakakis | list(networkusernames))
|
465 | 1b696c26 | Christos Stavrakakis | |
466 | 1b696c26 | Christos Stavrakakis | |
467 | 1b696c26 | Christos Stavrakakis | def vm_to_links(vm_id): |
468 | 73fbaad3 | Christos Stavrakakis | href = join_urls(SERVERS_URL, str(vm_id))
|
469 | 73fbaad3 | Christos Stavrakakis | return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
470 | 1b696c26 | Christos Stavrakakis | |
471 | 1b696c26 | Christos Stavrakakis | |
472 | 1b696c26 | Christos Stavrakakis | def network_to_links(network_id): |
473 | 73fbaad3 | Christos Stavrakakis | href = join_urls(NETWORKS_URL, str(network_id))
|
474 | 73fbaad3 | Christos Stavrakakis | return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
475 | 1b696c26 | Christos Stavrakakis | |
476 | 1b696c26 | Christos Stavrakakis | |
477 | 1b696c26 | Christos Stavrakakis | def flavor_to_links(flavor_id): |
478 | 73fbaad3 | Christos Stavrakakis | href = join_urls(FLAVORS_URL, str(flavor_id))
|
479 | 73fbaad3 | Christos Stavrakakis | return [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
480 | 1b696c26 | Christos Stavrakakis | |
481 | 1b696c26 | Christos Stavrakakis | |
482 | 1b696c26 | Christos Stavrakakis | def image_to_links(image_id): |
483 | 73fbaad3 | Christos Stavrakakis | href = join_urls(IMAGES_URL, str(image_id))
|
484 | 73fbaad3 | Christos Stavrakakis | links = [{"rel": rel, "href": href} for rel in ("self", "bookmark")] |
485 | 1b696c26 | Christos Stavrakakis | links.append({"rel": "alternate", |
486 | 73fbaad3 | Christos Stavrakakis | "href": join_urls(IMAGES_PLANKTON_URL, str(image_id))}) |
487 | 1b696c26 | Christos Stavrakakis | return links
|
488 | 41a7fae7 | Christos Stavrakakis | |
489 | 32e4e343 | Christos Stavrakakis | |
490 | 41a7fae7 | Christos Stavrakakis | def start_action(vm, action, jobId): |
491 | 41a7fae7 | Christos Stavrakakis | vm.action = action |
492 | 41a7fae7 | Christos Stavrakakis | vm.backendjobid = jobId |
493 | 41a7fae7 | Christos Stavrakakis | vm.backendopcode = None
|
494 | 41a7fae7 | Christos Stavrakakis | vm.backendjobstatus = None
|
495 | 41a7fae7 | Christos Stavrakakis | vm.backendlogmsg = None
|
496 | 41a7fae7 | Christos Stavrakakis | vm.save() |