root / api / servers.py @ 64938cb0
History | View | Annotate | Download (14 kB)
1 |
#
|
---|---|
2 |
# Copyright (c) 2010 Greek Research and Technology Network
|
3 |
#
|
4 |
|
5 |
import logging |
6 |
|
7 |
from django.conf.urls.defaults import patterns |
8 |
from django.http import HttpResponse |
9 |
from django.template.loader import render_to_string |
10 |
from django.utils import simplejson as json |
11 |
|
12 |
from synnefo.api.actions import server_actions |
13 |
from synnefo.api.common import method_not_allowed |
14 |
from synnefo.api.faults import BadRequest, ItemNotFound, ServiceUnavailable |
15 |
from synnefo.api.util import (isoformat, isoparse, random_password, |
16 |
get_vm, get_vm_meta, get_image, get_flavor, get_network, get_nic, |
17 |
get_request_dict, render_metadata, render_meta, api_method) |
18 |
from synnefo.db.models import VirtualMachine, VirtualMachineMetadata |
19 |
from synnefo.logic.backend import create_instance, delete_instance |
20 |
from synnefo.logic.utils import get_rsapi_state |
21 |
from synnefo.util.rapi import GanetiApiError |
22 |
|
23 |
|
24 |
urlpatterns = patterns('synnefo.api.servers',
|
25 |
(r'^(?:/|.json|.xml)?$', 'demux'), |
26 |
(r'^/detail(?:.json|.xml)?$', 'list_servers', {'detail': True}), |
27 |
(r'^/(\d+)(?:.json|.xml)?$', 'server_demux'), |
28 |
(r'^/(\d+)/action(?:.json|.xml)?$', 'server_action'), |
29 |
(r'^/(\d+)/ips(?:.json|.xml)?$', 'list_addresses'), |
30 |
(r'^/(\d+)/ips/(.+?)(?:.json|.xml)?$', 'list_addresses_by_network'), |
31 |
(r'^/(\d+)/meta(?:.json|.xml)?$', 'metadata_demux'), |
32 |
(r'^/(\d+)/meta/(.+?)(?:.json|.xml)?$', 'metadata_item_demux'), |
33 |
) |
34 |
|
35 |
|
36 |
def demux(request): |
37 |
if request.method == 'GET': |
38 |
return list_servers(request)
|
39 |
elif request.method == 'POST': |
40 |
return create_server(request)
|
41 |
else:
|
42 |
return method_not_allowed(request)
|
43 |
|
44 |
def server_demux(request, server_id): |
45 |
if request.method == 'GET': |
46 |
return get_server_details(request, server_id)
|
47 |
elif request.method == 'PUT': |
48 |
return update_server_name(request, server_id)
|
49 |
elif request.method == 'DELETE': |
50 |
return delete_server(request, server_id)
|
51 |
else:
|
52 |
return method_not_allowed(request)
|
53 |
|
54 |
def metadata_demux(request, server_id): |
55 |
if request.method == 'GET': |
56 |
return list_metadata(request, server_id)
|
57 |
elif request.method == 'POST': |
58 |
return update_metadata(request, server_id)
|
59 |
else:
|
60 |
return method_not_allowed(request)
|
61 |
|
62 |
def metadata_item_demux(request, server_id, key): |
63 |
if request.method == 'GET': |
64 |
return get_metadata_item(request, server_id, key)
|
65 |
elif request.method == 'PUT': |
66 |
return create_metadata_item(request, server_id, key)
|
67 |
elif request.method == 'DELETE': |
68 |
return delete_metadata_item(request, server_id, key)
|
69 |
else:
|
70 |
return method_not_allowed(request)
|
71 |
|
72 |
|
73 |
def nic_to_dict(nic): |
74 |
d = { |
75 |
'id': nic.network.id,
|
76 |
'name': nic.network.name,
|
77 |
'mac': nic.mac,
|
78 |
'firewallProfile': nic.firewall_profile}
|
79 |
if nic.ipv4 or nic.ipv6: |
80 |
d['values'] = [
|
81 |
{'version': 4, 'addr': nic.ipv4 or ''}, |
82 |
{'version': 6, 'addr': nic.ipv6 or ''}] |
83 |
return d
|
84 |
|
85 |
def metadata_to_dict(vm): |
86 |
vm_meta = vm.virtualmachinemetadata_set.all() |
87 |
return dict((meta.meta_key, meta.meta_value) for meta in vm_meta) |
88 |
|
89 |
def vm_to_dict(vm, detail=False): |
90 |
d = dict(id=vm.id, name=vm.name)
|
91 |
if detail:
|
92 |
d['status'] = get_rsapi_state(vm)
|
93 |
d['progress'] = 100 if get_rsapi_state(vm) == 'ACTIVE' else 0 |
94 |
d['hostId'] = vm.hostid
|
95 |
d['updated'] = isoformat(vm.updated)
|
96 |
d['created'] = isoformat(vm.created)
|
97 |
d['flavorRef'] = vm.flavor.id
|
98 |
d['imageRef'] = vm.sourceimage.id
|
99 |
|
100 |
metadata = metadata_to_dict(vm) |
101 |
if metadata:
|
102 |
d['metadata'] = {'values': metadata} |
103 |
|
104 |
addresses = [nic_to_dict(nic) for nic in vm.nics.all()] |
105 |
d['addresses'] = {'values': addresses} |
106 |
return d
|
107 |
|
108 |
|
109 |
def render_server(request, server, status=200): |
110 |
if request.serialization == 'xml': |
111 |
data = render_to_string('server.xml', {'server': server, 'is_root': True}) |
112 |
else:
|
113 |
data = json.dumps({'server': server})
|
114 |
return HttpResponse(data, status=status)
|
115 |
|
116 |
|
117 |
@api_method('GET') |
118 |
def list_servers(request, detail=False): |
119 |
# Normal Response Codes: 200, 203
|
120 |
# Error Response Codes: computeFault (400, 500),
|
121 |
# serviceUnavailable (503),
|
122 |
# unauthorized (401),
|
123 |
# badRequest (400),
|
124 |
# overLimit (413)
|
125 |
|
126 |
since = isoparse(request.GET.get('changes-since'))
|
127 |
|
128 |
if since:
|
129 |
user_vms = VirtualMachine.objects.filter(owner=request.user, updated__gte=since) |
130 |
if not user_vms: |
131 |
return HttpResponse(status=304) |
132 |
else:
|
133 |
user_vms = VirtualMachine.objects.filter(owner=request.user, deleted=False)
|
134 |
servers = [vm_to_dict(server, detail) for server in user_vms] |
135 |
|
136 |
if request.serialization == 'xml': |
137 |
data = render_to_string('list_servers.xml', {'servers': servers, 'detail': detail}) |
138 |
else:
|
139 |
data = json.dumps({'servers': {'values': servers}}) |
140 |
|
141 |
return HttpResponse(data, status=200) |
142 |
|
143 |
@api_method('POST') |
144 |
def create_server(request): |
145 |
# Normal Response Code: 202
|
146 |
# Error Response Codes: computeFault (400, 500),
|
147 |
# serviceUnavailable (503),
|
148 |
# unauthorized (401),
|
149 |
# badMediaType(415),
|
150 |
# itemNotFound (404),
|
151 |
# badRequest (400),
|
152 |
# serverCapacityUnavailable (503),
|
153 |
# overLimit (413)
|
154 |
|
155 |
req = get_request_dict(request) |
156 |
owner = request.user |
157 |
|
158 |
try:
|
159 |
server = req['server']
|
160 |
name = server['name']
|
161 |
metadata = server.get('metadata', {})
|
162 |
assert isinstance(metadata, dict) |
163 |
image_id = server['imageRef']
|
164 |
flavor_id = server['flavorRef']
|
165 |
except (KeyError, AssertionError): |
166 |
raise BadRequest('Malformed request.') |
167 |
|
168 |
image = get_image(image_id, owner) |
169 |
flavor = get_flavor(flavor_id) |
170 |
password = random_password() |
171 |
|
172 |
# We must save the VM instance now, so that it gets a valid vm.backend_id.
|
173 |
vm = VirtualMachine.objects.create(name=name, owner=owner, sourceimage=image, flavor=flavor) |
174 |
|
175 |
try:
|
176 |
create_instance(vm, flavor, password) |
177 |
except GanetiApiError:
|
178 |
vm.delete() |
179 |
raise ServiceUnavailable('Could not create server.') |
180 |
|
181 |
for key, val in metadata.items(): |
182 |
VirtualMachineMetadata.objects.create(meta_key=key, meta_value=val, vm=vm) |
183 |
|
184 |
logging.info('created vm with %s cpus, %s ram and %s storage',
|
185 |
flavor.cpu, flavor.ram, flavor.disk) |
186 |
|
187 |
server = vm_to_dict(vm, detail=True)
|
188 |
server['status'] = 'BUILD' |
189 |
server['adminPass'] = password
|
190 |
return render_server(request, server, status=202) |
191 |
|
192 |
@api_method('GET') |
193 |
def get_server_details(request, server_id): |
194 |
# Normal Response Codes: 200, 203
|
195 |
# Error Response Codes: computeFault (400, 500),
|
196 |
# serviceUnavailable (503),
|
197 |
# unauthorized (401),
|
198 |
# badRequest (400),
|
199 |
# itemNotFound (404),
|
200 |
# overLimit (413)
|
201 |
|
202 |
vm = get_vm(server_id, request.user) |
203 |
server = vm_to_dict(vm, detail=True)
|
204 |
return render_server(request, server)
|
205 |
|
206 |
@api_method('PUT') |
207 |
def update_server_name(request, server_id): |
208 |
# Normal Response Code: 204
|
209 |
# Error Response Codes: computeFault (400, 500),
|
210 |
# serviceUnavailable (503),
|
211 |
# unauthorized (401),
|
212 |
# badRequest (400),
|
213 |
# badMediaType(415),
|
214 |
# itemNotFound (404),
|
215 |
# buildInProgress (409),
|
216 |
# overLimit (413)
|
217 |
|
218 |
req = get_request_dict(request) |
219 |
|
220 |
try:
|
221 |
name = req['server']['name'] |
222 |
except (TypeError, KeyError): |
223 |
raise BadRequest('Malformed request.') |
224 |
|
225 |
vm = get_vm(server_id, request.user) |
226 |
vm.name = name |
227 |
vm.save() |
228 |
|
229 |
return HttpResponse(status=204) |
230 |
|
231 |
@api_method('DELETE') |
232 |
def delete_server(request, server_id): |
233 |
# Normal Response Codes: 204
|
234 |
# Error Response Codes: computeFault (400, 500),
|
235 |
# serviceUnavailable (503),
|
236 |
# unauthorized (401),
|
237 |
# itemNotFound (404),
|
238 |
# unauthorized (401),
|
239 |
# buildInProgress (409),
|
240 |
# overLimit (413)
|
241 |
|
242 |
vm = get_vm(server_id, request.user) |
243 |
delete_instance(vm) |
244 |
return HttpResponse(status=204) |
245 |
|
246 |
@api_method('POST') |
247 |
def server_action(request, server_id): |
248 |
vm = get_vm(server_id, request.user) |
249 |
req = get_request_dict(request) |
250 |
if len(req) != 1: |
251 |
raise BadRequest('Malformed request.') |
252 |
|
253 |
key = req.keys()[0]
|
254 |
val = req[key] |
255 |
|
256 |
try:
|
257 |
assert isinstance(val, dict) |
258 |
return server_actions[key](request, vm, req[key])
|
259 |
except KeyError: |
260 |
raise BadRequest('Unknown action.') |
261 |
except AssertionError: |
262 |
raise BadRequest('Invalid argument.') |
263 |
|
264 |
@api_method('GET') |
265 |
def list_addresses(request, server_id): |
266 |
# Normal Response Codes: 200, 203
|
267 |
# Error Response Codes: computeFault (400, 500),
|
268 |
# serviceUnavailable (503),
|
269 |
# unauthorized (401),
|
270 |
# badRequest (400),
|
271 |
# overLimit (413)
|
272 |
|
273 |
vm = get_vm(server_id, request.user) |
274 |
addresses = [nic_to_dict(nic) for nic in vm.nics.all()] |
275 |
|
276 |
if request.serialization == 'xml': |
277 |
data = render_to_string('list_addresses.xml', {'addresses': addresses}) |
278 |
else:
|
279 |
data = json.dumps({'addresses': {'values': addresses}}) |
280 |
|
281 |
return HttpResponse(data, status=200) |
282 |
|
283 |
@api_method('GET') |
284 |
def list_addresses_by_network(request, server_id, network_id): |
285 |
# Normal Response Codes: 200, 203
|
286 |
# Error Response Codes: computeFault (400, 500),
|
287 |
# serviceUnavailable (503),
|
288 |
# unauthorized (401),
|
289 |
# badRequest (400),
|
290 |
# itemNotFound (404),
|
291 |
# overLimit (413)
|
292 |
|
293 |
owner = request.user |
294 |
machine = get_vm(server_id, owner) |
295 |
network = get_network(network_id, owner) |
296 |
nic = get_nic(machine, network) |
297 |
address = nic_to_dict(nic) |
298 |
|
299 |
if request.serialization == 'xml': |
300 |
data = render_to_string('address.xml', {'address': address}) |
301 |
else:
|
302 |
data = json.dumps({'network': address})
|
303 |
|
304 |
return HttpResponse(data, status=200) |
305 |
|
306 |
@api_method('GET') |
307 |
def list_metadata(request, server_id): |
308 |
# Normal Response Codes: 200, 203
|
309 |
# Error Response Codes: computeFault (400, 500),
|
310 |
# serviceUnavailable (503),
|
311 |
# unauthorized (401),
|
312 |
# badRequest (400),
|
313 |
# overLimit (413)
|
314 |
|
315 |
vm = get_vm(server_id, request.user) |
316 |
metadata = metadata_to_dict(vm) |
317 |
return render_metadata(request, metadata, use_values=True, status=200) |
318 |
|
319 |
@api_method('POST') |
320 |
def update_metadata(request, server_id): |
321 |
# Normal Response Code: 201
|
322 |
# Error Response Codes: computeFault (400, 500),
|
323 |
# serviceUnavailable (503),
|
324 |
# unauthorized (401),
|
325 |
# badRequest (400),
|
326 |
# buildInProgress (409),
|
327 |
# badMediaType(415),
|
328 |
# overLimit (413)
|
329 |
|
330 |
vm = get_vm(server_id, request.user) |
331 |
req = get_request_dict(request) |
332 |
try:
|
333 |
metadata = req['metadata']
|
334 |
assert isinstance(metadata, dict) |
335 |
except (KeyError, AssertionError): |
336 |
raise BadRequest('Malformed request.') |
337 |
|
338 |
updated = {} |
339 |
|
340 |
for key, val in metadata.items(): |
341 |
try:
|
342 |
meta = VirtualMachineMetadata.objects.get(meta_key=key, vm=vm) |
343 |
meta.meta_value = val |
344 |
meta.save() |
345 |
updated[key] = val |
346 |
except VirtualMachineMetadata.DoesNotExist:
|
347 |
pass # Ignore non-existent metadata |
348 |
|
349 |
if updated:
|
350 |
vm.save() |
351 |
|
352 |
return render_metadata(request, updated, status=201) |
353 |
|
354 |
@api_method('GET') |
355 |
def get_metadata_item(request, server_id, key): |
356 |
# Normal Response Codes: 200, 203
|
357 |
# Error Response Codes: computeFault (400, 500),
|
358 |
# serviceUnavailable (503),
|
359 |
# unauthorized (401),
|
360 |
# itemNotFound (404),
|
361 |
# badRequest (400),
|
362 |
# overLimit (413)
|
363 |
|
364 |
vm = get_vm(server_id, request.user) |
365 |
meta = get_vm_meta(vm, key) |
366 |
return render_meta(request, meta, status=200) |
367 |
|
368 |
@api_method('PUT') |
369 |
def create_metadata_item(request, server_id, key): |
370 |
# Normal Response Code: 201
|
371 |
# Error Response Codes: computeFault (400, 500),
|
372 |
# serviceUnavailable (503),
|
373 |
# unauthorized (401),
|
374 |
# itemNotFound (404),
|
375 |
# badRequest (400),
|
376 |
# buildInProgress (409),
|
377 |
# badMediaType(415),
|
378 |
# overLimit (413)
|
379 |
|
380 |
vm = get_vm(server_id, request.user) |
381 |
req = get_request_dict(request) |
382 |
try:
|
383 |
metadict = req['meta']
|
384 |
assert isinstance(metadict, dict) |
385 |
assert len(metadict) == 1 |
386 |
assert key in metadict |
387 |
except (KeyError, AssertionError): |
388 |
raise BadRequest('Malformed request.') |
389 |
|
390 |
meta, created = VirtualMachineMetadata.objects.get_or_create(meta_key=key, vm=vm) |
391 |
meta.meta_value = metadict[key] |
392 |
meta.save() |
393 |
vm.save() |
394 |
return render_meta(request, meta, status=201) |
395 |
|
396 |
@api_method('DELETE') |
397 |
def delete_metadata_item(request, server_id, key): |
398 |
# Normal Response Code: 204
|
399 |
# Error Response Codes: computeFault (400, 500),
|
400 |
# serviceUnavailable (503),
|
401 |
# unauthorized (401),
|
402 |
# itemNotFound (404),
|
403 |
# badRequest (400),
|
404 |
# buildInProgress (409),
|
405 |
# badMediaType(415),
|
406 |
# overLimit (413),
|
407 |
|
408 |
vm = get_vm(server_id, request.user) |
409 |
meta = get_vm_meta(vm, key) |
410 |
meta.delete() |
411 |
vm.save() |
412 |
return HttpResponse(status=204) |