root / api / servers.py @ ccd0d474
History | View | Annotate | Download (16 kB)
1 |
# Copyright 2011 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
11 |
# 2. Redistributions in binary form must reproduce the above
|
12 |
# copyright notice, this list of conditions and the following
|
13 |
# disclaimer in the documentation and/or other materials
|
14 |
# provided with the distribution.
|
15 |
#
|
16 |
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 |
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 |
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 |
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 |
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 |
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 |
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 |
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 |
# POSSIBILITY OF SUCH DAMAGE.
|
28 |
#
|
29 |
# The views and conclusions contained in the software and
|
30 |
# documentation are those of the authors and should not be
|
31 |
# interpreted as representing official policies, either expressed
|
32 |
# or implied, of GRNET S.A.
|
33 |
|
34 |
import logging |
35 |
|
36 |
from django.conf import settings |
37 |
from django.conf.urls.defaults import patterns |
38 |
from django.http import HttpResponse |
39 |
from django.template.loader import render_to_string |
40 |
from django.utils import simplejson as json |
41 |
|
42 |
from synnefo.api import faults, util |
43 |
from synnefo.api.actions import server_actions |
44 |
from synnefo.api.common import method_not_allowed |
45 |
from synnefo.db.models import VirtualMachine, VirtualMachineMetadata |
46 |
from synnefo.logic.backend import create_instance, delete_instance |
47 |
from synnefo.logic.utils import get_rsapi_state |
48 |
from synnefo.util.rapi import GanetiApiError |
49 |
|
50 |
|
51 |
urlpatterns = patterns('synnefo.api.servers',
|
52 |
(r'^(?:/|.json|.xml)?$', 'demux'), |
53 |
(r'^/detail(?:.json|.xml)?$', 'list_servers', {'detail': True}), |
54 |
(r'^/(\d+)(?:.json|.xml)?$', 'server_demux'), |
55 |
(r'^/(\d+)/action(?:.json|.xml)?$', 'server_action'), |
56 |
(r'^/(\d+)/ips(?:.json|.xml)?$', 'list_addresses'), |
57 |
(r'^/(\d+)/ips/(.+?)(?:.json|.xml)?$', 'list_addresses_by_network'), |
58 |
(r'^/(\d+)/meta(?:.json|.xml)?$', 'metadata_demux'), |
59 |
(r'^/(\d+)/meta/(.+?)(?:.json|.xml)?$', 'metadata_item_demux'), |
60 |
) |
61 |
|
62 |
|
63 |
def demux(request): |
64 |
if request.method == 'GET': |
65 |
return list_servers(request)
|
66 |
elif request.method == 'POST': |
67 |
return create_server(request)
|
68 |
else:
|
69 |
return method_not_allowed(request)
|
70 |
|
71 |
def server_demux(request, server_id): |
72 |
if request.method == 'GET': |
73 |
return get_server_details(request, server_id)
|
74 |
elif request.method == 'PUT': |
75 |
return update_server_name(request, server_id)
|
76 |
elif request.method == 'DELETE': |
77 |
return delete_server(request, server_id)
|
78 |
else:
|
79 |
return method_not_allowed(request)
|
80 |
|
81 |
def metadata_demux(request, server_id): |
82 |
if request.method == 'GET': |
83 |
return list_metadata(request, server_id)
|
84 |
elif request.method == 'POST': |
85 |
return update_metadata(request, server_id)
|
86 |
else:
|
87 |
return method_not_allowed(request)
|
88 |
|
89 |
def metadata_item_demux(request, server_id, key): |
90 |
if request.method == 'GET': |
91 |
return get_metadata_item(request, server_id, key)
|
92 |
elif request.method == 'PUT': |
93 |
return create_metadata_item(request, server_id, key)
|
94 |
elif request.method == 'DELETE': |
95 |
return delete_metadata_item(request, server_id, key)
|
96 |
else:
|
97 |
return method_not_allowed(request)
|
98 |
|
99 |
|
100 |
def nic_to_dict(nic): |
101 |
network = nic.network |
102 |
network_id = str(network.id) if not network.public else 'public' |
103 |
d = {'id': network_id, 'name': network.name, 'mac': nic.mac} |
104 |
if nic.firewall_profile:
|
105 |
d['firewallProfile'] = nic.firewall_profile
|
106 |
if nic.ipv4 or nic.ipv6: |
107 |
d['values'] = []
|
108 |
if nic.ipv4:
|
109 |
d['values'].append({'version': 4, 'addr': nic.ipv4}) |
110 |
if nic.ipv6:
|
111 |
d['values'].append({'version': 6, 'addr': nic.ipv6}) |
112 |
return d
|
113 |
|
114 |
def metadata_to_dict(vm): |
115 |
vm_meta = vm.virtualmachinemetadata_set.all() |
116 |
return dict((meta.meta_key, meta.meta_value) for meta in vm_meta) |
117 |
|
118 |
def vm_to_dict(vm, detail=False): |
119 |
d = dict(id=vm.id, name=vm.name)
|
120 |
if detail:
|
121 |
d['status'] = get_rsapi_state(vm)
|
122 |
d['progress'] = 100 if get_rsapi_state(vm) == 'ACTIVE' else 0 |
123 |
d['hostId'] = vm.hostid
|
124 |
d['updated'] = util.isoformat(vm.updated)
|
125 |
d['created'] = util.isoformat(vm.created)
|
126 |
d['flavorRef'] = vm.flavor.id
|
127 |
d['imageRef'] = vm.sourceimage.id
|
128 |
|
129 |
metadata = metadata_to_dict(vm) |
130 |
if metadata:
|
131 |
d['metadata'] = {'values': metadata} |
132 |
|
133 |
addresses = [nic_to_dict(nic) for nic in vm.nics.all()] |
134 |
if addresses:
|
135 |
d['addresses'] = {'values': addresses} |
136 |
return d
|
137 |
|
138 |
|
139 |
def render_server(request, server, status=200): |
140 |
if request.serialization == 'xml': |
141 |
data = render_to_string('server.xml', {
|
142 |
'server': server,
|
143 |
'is_root': True}) |
144 |
else:
|
145 |
data = json.dumps({'server': server})
|
146 |
return HttpResponse(data, status=status)
|
147 |
|
148 |
|
149 |
@util.api_method('GET') |
150 |
def list_servers(request, detail=False): |
151 |
# Normal Response Codes: 200, 203
|
152 |
# Error Response Codes: computeFault (400, 500),
|
153 |
# serviceUnavailable (503),
|
154 |
# unauthorized (401),
|
155 |
# badRequest (400),
|
156 |
# overLimit (413)
|
157 |
|
158 |
user_vms = VirtualMachine.objects.filter(owner=request.user) |
159 |
since = util.isoparse(request.GET.get('changes-since'))
|
160 |
|
161 |
if since:
|
162 |
user_vms = user_vms.filter(updated__gte=since) |
163 |
if not user_vms: |
164 |
return HttpResponse(status=304) |
165 |
else:
|
166 |
user_vms = user_vms.filter(deleted=False)
|
167 |
|
168 |
servers = [vm_to_dict(server, detail) for server in user_vms] |
169 |
|
170 |
if request.serialization == 'xml': |
171 |
data = render_to_string('list_servers.xml', {
|
172 |
'servers': servers,
|
173 |
'detail': detail})
|
174 |
else:
|
175 |
data = json.dumps({'servers': {'values': servers}}) |
176 |
|
177 |
return HttpResponse(data, status=200) |
178 |
|
179 |
@util.api_method('POST') |
180 |
def create_server(request): |
181 |
# Normal Response Code: 202
|
182 |
# Error Response Codes: computeFault (400, 500),
|
183 |
# serviceUnavailable (503),
|
184 |
# unauthorized (401),
|
185 |
# badMediaType(415),
|
186 |
# itemNotFound (404),
|
187 |
# badRequest (400),
|
188 |
# serverCapacityUnavailable (503),
|
189 |
# overLimit (413)
|
190 |
|
191 |
req = util.get_request_dict(request) |
192 |
owner = request.user |
193 |
|
194 |
try:
|
195 |
server = req['server']
|
196 |
name = server['name']
|
197 |
metadata = server.get('metadata', {})
|
198 |
assert isinstance(metadata, dict) |
199 |
image_id = server['imageRef']
|
200 |
flavor_id = server['flavorRef']
|
201 |
except (KeyError, AssertionError): |
202 |
raise faults.BadRequest("Malformed request") |
203 |
|
204 |
image = util.get_image(image_id, owner) |
205 |
flavor = util.get_flavor(flavor_id) |
206 |
password = util.random_password() |
207 |
|
208 |
count = VirtualMachine.objects.filter(owner=owner, deleted=False).count()
|
209 |
if count >= settings.MAX_VMS_PER_USER:
|
210 |
raise faults.OverLimit("Maximum number of servers reached") |
211 |
|
212 |
# We must save the VM instance now, so that it gets a valid vm.backend_id.
|
213 |
vm = VirtualMachine.objects.create( |
214 |
name=name, |
215 |
owner=owner, |
216 |
sourceimage=image, |
217 |
flavor=flavor) |
218 |
|
219 |
try:
|
220 |
create_instance(vm, flavor, image, password) |
221 |
except GanetiApiError:
|
222 |
vm.delete() |
223 |
raise faults.ServiceUnavailable("Could not create server") |
224 |
|
225 |
for key, val in metadata.items(): |
226 |
VirtualMachineMetadata.objects.create( |
227 |
meta_key=key, |
228 |
meta_value=val, |
229 |
vm=vm) |
230 |
|
231 |
logging.info('created vm with %s cpus, %s ram and %s storage',
|
232 |
flavor.cpu, flavor.ram, flavor.disk) |
233 |
|
234 |
server = vm_to_dict(vm, detail=True)
|
235 |
server['status'] = 'BUILD' |
236 |
server['adminPass'] = password
|
237 |
return render_server(request, server, status=202) |
238 |
|
239 |
@util.api_method('GET') |
240 |
def get_server_details(request, server_id): |
241 |
# Normal Response Codes: 200, 203
|
242 |
# Error Response Codes: computeFault (400, 500),
|
243 |
# serviceUnavailable (503),
|
244 |
# unauthorized (401),
|
245 |
# badRequest (400),
|
246 |
# itemNotFound (404),
|
247 |
# overLimit (413)
|
248 |
|
249 |
vm = util.get_vm(server_id, request.user) |
250 |
server = vm_to_dict(vm, detail=True)
|
251 |
return render_server(request, server)
|
252 |
|
253 |
@util.api_method('PUT') |
254 |
def update_server_name(request, server_id): |
255 |
# Normal Response Code: 204
|
256 |
# Error Response Codes: computeFault (400, 500),
|
257 |
# serviceUnavailable (503),
|
258 |
# unauthorized (401),
|
259 |
# badRequest (400),
|
260 |
# badMediaType(415),
|
261 |
# itemNotFound (404),
|
262 |
# buildInProgress (409),
|
263 |
# overLimit (413)
|
264 |
|
265 |
req = util.get_request_dict(request) |
266 |
|
267 |
try:
|
268 |
name = req['server']['name'] |
269 |
except (TypeError, KeyError): |
270 |
raise faults.BadRequest("Malformed request") |
271 |
|
272 |
vm = util.get_vm(server_id, request.user) |
273 |
vm.name = name |
274 |
vm.save() |
275 |
|
276 |
return HttpResponse(status=204) |
277 |
|
278 |
@util.api_method('DELETE') |
279 |
def delete_server(request, server_id): |
280 |
# Normal Response Codes: 204
|
281 |
# Error Response Codes: computeFault (400, 500),
|
282 |
# serviceUnavailable (503),
|
283 |
# unauthorized (401),
|
284 |
# itemNotFound (404),
|
285 |
# unauthorized (401),
|
286 |
# buildInProgress (409),
|
287 |
# overLimit (413)
|
288 |
|
289 |
vm = util.get_vm(server_id, request.user) |
290 |
delete_instance(vm) |
291 |
return HttpResponse(status=204) |
292 |
|
293 |
@util.api_method('POST') |
294 |
def server_action(request, server_id): |
295 |
vm = util.get_vm(server_id, request.user) |
296 |
req = util.get_request_dict(request) |
297 |
if len(req) != 1: |
298 |
raise faults.BadRequest("Malformed request") |
299 |
|
300 |
key = req.keys()[0]
|
301 |
val = req[key] |
302 |
|
303 |
try:
|
304 |
assert isinstance(val, dict) |
305 |
return server_actions[key](request, vm, req[key])
|
306 |
except KeyError: |
307 |
raise faults.BadRequest("Unknown action") |
308 |
except AssertionError: |
309 |
raise faults.BadRequest("Invalid argument") |
310 |
|
311 |
@util.api_method('GET') |
312 |
def list_addresses(request, server_id): |
313 |
# Normal Response Codes: 200, 203
|
314 |
# Error Response Codes: computeFault (400, 500),
|
315 |
# serviceUnavailable (503),
|
316 |
# unauthorized (401),
|
317 |
# badRequest (400),
|
318 |
# overLimit (413)
|
319 |
|
320 |
vm = util.get_vm(server_id, request.user) |
321 |
addresses = [nic_to_dict(nic) for nic in vm.nics.all()] |
322 |
|
323 |
if request.serialization == 'xml': |
324 |
data = render_to_string('list_addresses.xml', {'addresses': addresses}) |
325 |
else:
|
326 |
data = json.dumps({'addresses': {'values': addresses}}) |
327 |
|
328 |
return HttpResponse(data, status=200) |
329 |
|
330 |
@util.api_method('GET') |
331 |
def list_addresses_by_network(request, server_id, network_id): |
332 |
# Normal Response Codes: 200, 203
|
333 |
# Error Response Codes: computeFault (400, 500),
|
334 |
# serviceUnavailable (503),
|
335 |
# unauthorized (401),
|
336 |
# badRequest (400),
|
337 |
# itemNotFound (404),
|
338 |
# overLimit (413)
|
339 |
|
340 |
owner = request.user |
341 |
machine = util.get_vm(server_id, owner) |
342 |
network = util.get_network(network_id, owner) |
343 |
nic = util.get_nic(machine, network) |
344 |
address = nic_to_dict(nic) |
345 |
|
346 |
if request.serialization == 'xml': |
347 |
data = render_to_string('address.xml', {'address': address}) |
348 |
else:
|
349 |
data = json.dumps({'network': address})
|
350 |
|
351 |
return HttpResponse(data, status=200) |
352 |
|
353 |
@util.api_method('GET') |
354 |
def list_metadata(request, server_id): |
355 |
# Normal Response Codes: 200, 203
|
356 |
# Error Response Codes: computeFault (400, 500),
|
357 |
# serviceUnavailable (503),
|
358 |
# unauthorized (401),
|
359 |
# badRequest (400),
|
360 |
# overLimit (413)
|
361 |
|
362 |
vm = util.get_vm(server_id, request.user) |
363 |
metadata = metadata_to_dict(vm) |
364 |
return util.render_metadata(request, metadata, use_values=True, status=200) |
365 |
|
366 |
@util.api_method('POST') |
367 |
def update_metadata(request, server_id): |
368 |
# Normal Response Code: 201
|
369 |
# Error Response Codes: computeFault (400, 500),
|
370 |
# serviceUnavailable (503),
|
371 |
# unauthorized (401),
|
372 |
# badRequest (400),
|
373 |
# buildInProgress (409),
|
374 |
# badMediaType(415),
|
375 |
# overLimit (413)
|
376 |
|
377 |
vm = util.get_vm(server_id, request.user) |
378 |
req = util.get_request_dict(request) |
379 |
try:
|
380 |
metadata = req['metadata']
|
381 |
assert isinstance(metadata, dict) |
382 |
except (KeyError, AssertionError): |
383 |
raise faults.BadRequest("Malformed request") |
384 |
|
385 |
updated = {} |
386 |
|
387 |
for key, val in metadata.items(): |
388 |
try:
|
389 |
meta = VirtualMachineMetadata.objects.get(meta_key=key, vm=vm) |
390 |
meta.meta_value = val |
391 |
meta.save() |
392 |
updated[key] = val |
393 |
except VirtualMachineMetadata.DoesNotExist:
|
394 |
pass # Ignore non-existent metadata |
395 |
|
396 |
if updated:
|
397 |
vm.save() |
398 |
|
399 |
return util.render_metadata(request, updated, status=201) |
400 |
|
401 |
@util.api_method('GET') |
402 |
def get_metadata_item(request, server_id, key): |
403 |
# Normal Response Codes: 200, 203
|
404 |
# Error Response Codes: computeFault (400, 500),
|
405 |
# serviceUnavailable (503),
|
406 |
# unauthorized (401),
|
407 |
# itemNotFound (404),
|
408 |
# badRequest (400),
|
409 |
# overLimit (413)
|
410 |
|
411 |
vm = util.get_vm(server_id, request.user) |
412 |
meta = util.get_vm_meta(vm, key) |
413 |
return util.render_meta(request, meta, status=200) |
414 |
|
415 |
@util.api_method('PUT') |
416 |
def create_metadata_item(request, server_id, key): |
417 |
# Normal Response Code: 201
|
418 |
# Error Response Codes: computeFault (400, 500),
|
419 |
# serviceUnavailable (503),
|
420 |
# unauthorized (401),
|
421 |
# itemNotFound (404),
|
422 |
# badRequest (400),
|
423 |
# buildInProgress (409),
|
424 |
# badMediaType(415),
|
425 |
# overLimit (413)
|
426 |
|
427 |
vm = util.get_vm(server_id, request.user) |
428 |
req = util.get_request_dict(request) |
429 |
try:
|
430 |
metadict = req['meta']
|
431 |
assert isinstance(metadict, dict) |
432 |
assert len(metadict) == 1 |
433 |
assert key in metadict |
434 |
except (KeyError, AssertionError): |
435 |
raise faults.BadRequest("Malformed request") |
436 |
|
437 |
meta, created = VirtualMachineMetadata.objects.get_or_create( |
438 |
meta_key=key, |
439 |
vm=vm) |
440 |
|
441 |
meta.meta_value = metadict[key] |
442 |
meta.save() |
443 |
vm.save() |
444 |
return util.render_meta(request, meta, status=201) |
445 |
|
446 |
@util.api_method('DELETE') |
447 |
def delete_metadata_item(request, server_id, key): |
448 |
# Normal Response Code: 204
|
449 |
# Error Response Codes: computeFault (400, 500),
|
450 |
# serviceUnavailable (503),
|
451 |
# unauthorized (401),
|
452 |
# itemNotFound (404),
|
453 |
# badRequest (400),
|
454 |
# buildInProgress (409),
|
455 |
# badMediaType(415),
|
456 |
# overLimit (413),
|
457 |
|
458 |
vm = util.get_vm(server_id, request.user) |
459 |
meta = util.get_vm_meta(vm, key) |
460 |
meta.delete() |
461 |
vm.save() |
462 |
return HttpResponse(status=204) |