root / snf-cyclades-app / synnefo / logic / servers.py @ 64bca363
History | View | Annotate | Download (24.8 kB)
1 |
import logging |
---|---|
2 |
|
3 |
from socket import getfqdn |
4 |
from functools import wraps |
5 |
from django import dispatch |
6 |
from django.db import transaction |
7 |
from django.utils import simplejson as json |
8 |
|
9 |
from snf_django.lib.api import faults |
10 |
from django.conf import settings |
11 |
from synnefo import quotas |
12 |
from synnefo.api import util |
13 |
from synnefo.logic import backend, ips |
14 |
from synnefo.logic.backend_allocator import BackendAllocator |
15 |
from synnefo.db.models import (NetworkInterface, VirtualMachine, |
16 |
VirtualMachineMetadata, IPAddressLog, Network) |
17 |
from vncauthproxy.client import request_forwarding as request_vnc_forwarding |
18 |
from synnefo.logic import rapi |
19 |
|
20 |
log = logging.getLogger(__name__) |
21 |
|
22 |
# server creation signal
|
23 |
server_created = dispatch.Signal(providing_args=["created_vm_params"])
|
24 |
|
25 |
|
26 |
def validate_server_action(vm, action): |
27 |
if vm.deleted:
|
28 |
raise faults.BadRequest("Server '%s' has been deleted." % vm.id) |
29 |
|
30 |
# Destroyin a server should always be permitted
|
31 |
if action == "DESTROY": |
32 |
return
|
33 |
|
34 |
# Check that there is no pending action
|
35 |
pending_action = vm.task |
36 |
if pending_action:
|
37 |
if pending_action == "BUILD": |
38 |
raise faults.BuildInProgress("Server '%s' is being build." % vm.id) |
39 |
raise faults.BadRequest("Cannot perform '%s' action while there is a" |
40 |
" pending '%s'." % (action, pending_action))
|
41 |
|
42 |
# Check if action can be performed to VM's operstate
|
43 |
operstate = vm.operstate |
44 |
if operstate == "ERROR": |
45 |
raise faults.BadRequest("Cannot perform '%s' action while server is" |
46 |
" in 'ERROR' state." % action)
|
47 |
elif operstate == "BUILD" and action != "BUILD": |
48 |
raise faults.BuildInProgress("Server '%s' is being build." % vm.id) |
49 |
elif (action == "START" and operstate != "STOPPED") or\ |
50 |
(action == "STOP" and operstate != "STARTED") or\ |
51 |
(action == "RESIZE" and operstate != "STOPPED") or\ |
52 |
(action in ["CONNECT", "DISCONNECT"] and operstate != "STOPPED" |
53 |
and not settings.GANETI_USE_HOTPLUG): |
54 |
raise faults.BadRequest("Cannot perform '%s' action while server is" |
55 |
" in '%s' state." % (action, operstate))
|
56 |
return
|
57 |
|
58 |
|
59 |
def server_command(action, action_fields=None): |
60 |
"""Handle execution of a server action.
|
61 |
|
62 |
Helper function to validate and execute a server action, handle quota
|
63 |
commission and update the 'task' of the VM in the DB.
|
64 |
|
65 |
1) Check if action can be performed. If it can, then there must be no
|
66 |
pending task (with the exception of DESTROY).
|
67 |
2) Handle previous commission if unresolved:
|
68 |
* If it is not pending and it to accept, then accept
|
69 |
* If it is not pending and to reject or is pending then reject it. Since
|
70 |
the action can be performed only if there is no pending task, then there
|
71 |
can be no pending commission. The exception is DESTROY, but in this case
|
72 |
the commission can safely be rejected, and the dispatcher will generate
|
73 |
the correct ones!
|
74 |
3) Issue new commission and associate it with the VM. Also clear the task.
|
75 |
4) Send job to ganeti
|
76 |
5) Update task and commit
|
77 |
"""
|
78 |
def decorator(func): |
79 |
@wraps(func)
|
80 |
@transaction.commit_on_success
|
81 |
def wrapper(vm, *args, **kwargs): |
82 |
user_id = vm.userid |
83 |
validate_server_action(vm, action) |
84 |
vm.action = action |
85 |
|
86 |
commission_name = "client: api, resource: %s" % vm
|
87 |
quotas.handle_resource_commission(vm, action=action, |
88 |
action_fields=action_fields, |
89 |
commission_name=commission_name) |
90 |
vm.save() |
91 |
|
92 |
# XXX: Special case for server creation!
|
93 |
if action == "BUILD": |
94 |
# Perform a commit, because the VirtualMachine must be saved to
|
95 |
# DB before the OP_INSTANCE_CREATE job in enqueued in Ganeti.
|
96 |
# Otherwise, messages will arrive from snf-dispatcher about
|
97 |
# this instance, before the VM is stored in DB.
|
98 |
transaction.commit() |
99 |
# After committing the locks are released. Refetch the instance
|
100 |
# to guarantee x-lock.
|
101 |
vm = VirtualMachine.objects.select_for_update().get(id=vm.id) |
102 |
|
103 |
# Send the job to Ganeti and get the associated jobID
|
104 |
try:
|
105 |
job_id = func(vm, *args, **kwargs) |
106 |
except Exception as e: |
107 |
if vm.serial is not None: |
108 |
# Since the job never reached Ganeti, reject the commission
|
109 |
log.debug("Rejecting commission: '%s', could not perform"
|
110 |
" action '%s': %s" % (vm.serial, action, e))
|
111 |
transaction.rollback() |
112 |
quotas.reject_serial(vm.serial) |
113 |
transaction.commit() |
114 |
raise
|
115 |
|
116 |
if action == "BUILD" and vm.serial is not None: |
117 |
# XXX: Special case for server creation: we must accept the
|
118 |
# commission because the VM has been stored in DB. Also, if
|
119 |
# communication with Ganeti fails, the job will never reach
|
120 |
# Ganeti, and the commission will never be resolved.
|
121 |
quotas.accept_serial(vm.serial) |
122 |
|
123 |
log.info("user: %s, vm: %s, action: %s, job_id: %s, serial: %s",
|
124 |
user_id, vm.id, action, job_id, vm.serial) |
125 |
|
126 |
# store the new task in the VM
|
127 |
if job_id is not None: |
128 |
vm.task = action |
129 |
vm.task_job_id = job_id |
130 |
vm.save() |
131 |
|
132 |
return vm
|
133 |
return wrapper
|
134 |
return decorator
|
135 |
|
136 |
|
137 |
@transaction.commit_on_success
|
138 |
def create(userid, name, password, flavor, image, metadata={}, |
139 |
personality=[], networks=None, use_backend=None): |
140 |
if use_backend is None: |
141 |
# Allocate server to a Ganeti backend
|
142 |
use_backend = allocate_new_server(userid, flavor) |
143 |
|
144 |
# Create the ports for the server
|
145 |
try:
|
146 |
ports = create_instance_ports(userid, networks) |
147 |
except Exception as e: |
148 |
raise e
|
149 |
|
150 |
# Fix flavor for archipelago
|
151 |
disk_template, provider = util.get_flavor_provider(flavor) |
152 |
if provider:
|
153 |
flavor.disk_template = disk_template |
154 |
flavor.disk_provider = provider |
155 |
flavor.disk_origin = None
|
156 |
if provider == 'vlmc': |
157 |
flavor.disk_origin = image['checksum']
|
158 |
image['backend_id'] = 'null' |
159 |
else:
|
160 |
flavor.disk_provider = None
|
161 |
|
162 |
# We must save the VM instance now, so that it gets a valid
|
163 |
# vm.backend_vm_id.
|
164 |
vm = VirtualMachine.objects.create(name=name, |
165 |
backend=use_backend, |
166 |
userid=userid, |
167 |
imageid=image["id"],
|
168 |
flavor=flavor, |
169 |
operstate="BUILD")
|
170 |
log.info("Created entry in DB for VM '%s'", vm)
|
171 |
|
172 |
# Associate the ports with the server
|
173 |
for index, port in enumerate(ports): |
174 |
associate_port_with_machine(port, vm) |
175 |
port.index = index |
176 |
port.save() |
177 |
|
178 |
for key, val in metadata.items(): |
179 |
VirtualMachineMetadata.objects.create( |
180 |
meta_key=key, |
181 |
meta_value=val, |
182 |
vm=vm) |
183 |
|
184 |
# Create the server in Ganeti.
|
185 |
vm = create_server(vm, ports, flavor, image, personality, password) |
186 |
|
187 |
return vm
|
188 |
|
189 |
|
190 |
@transaction.commit_on_success
|
191 |
def allocate_new_server(userid, flavor): |
192 |
"""Allocate a new server to a Ganeti backend.
|
193 |
|
194 |
Allocation is performed based on the owner of the server and the specified
|
195 |
flavor. Also, backends that do not have a public IPv4 address are excluded
|
196 |
from server allocation.
|
197 |
|
198 |
This function runs inside a transaction, because after allocating the
|
199 |
instance a commit must be performed in order to release all locks.
|
200 |
|
201 |
"""
|
202 |
backend_allocator = BackendAllocator() |
203 |
use_backend = backend_allocator.allocate(userid, flavor) |
204 |
if use_backend is None: |
205 |
log.error("No available backend for VM with flavor %s", flavor)
|
206 |
raise faults.ServiceUnavailable("No available backends") |
207 |
return use_backend
|
208 |
|
209 |
|
210 |
@server_command("BUILD") |
211 |
def create_server(vm, nics, flavor, image, personality, password): |
212 |
# dispatch server created signal needed to trigger the 'vmapi', which
|
213 |
# enriches the vm object with the 'config_url' attribute which must be
|
214 |
# passed to the Ganeti job.
|
215 |
server_created.send(sender=vm, created_vm_params={ |
216 |
'img_id': image['backend_id'], |
217 |
'img_passwd': password,
|
218 |
'img_format': str(image['format']), |
219 |
'img_personality': json.dumps(personality),
|
220 |
'img_properties': json.dumps(image['metadata']), |
221 |
}) |
222 |
# send job to Ganeti
|
223 |
try:
|
224 |
jobID = backend.create_instance(vm, nics, flavor, image) |
225 |
except:
|
226 |
log.exception("Failed create instance '%s'", vm)
|
227 |
jobID = None
|
228 |
vm.operstate = "ERROR"
|
229 |
vm.backendlogmsg = "Failed to send job to Ganeti."
|
230 |
vm.save() |
231 |
vm.nics.all().update(state="ERROR")
|
232 |
|
233 |
# At this point the job is enqueued in the Ganeti backend
|
234 |
vm.backendopcode = "OP_INSTANCE_CREATE"
|
235 |
vm.backendjobid = jobID |
236 |
vm.save() |
237 |
log.info("User %s created VM %s, NICs %s, Backend %s, JobID %s",
|
238 |
vm.userid, vm, nics, backend, str(jobID))
|
239 |
|
240 |
return jobID
|
241 |
|
242 |
|
243 |
@server_command("DESTROY") |
244 |
def destroy(vm): |
245 |
# XXX: Workaround for race where OP_INSTANCE_REMOVE starts executing on
|
246 |
# Ganeti before OP_INSTANCE_CREATE. This will be fixed when
|
247 |
# OP_INSTANCE_REMOVE supports the 'depends' request attribute.
|
248 |
if (vm.backendopcode == "OP_INSTANCE_CREATE" and |
249 |
vm.backendjobstatus not in rapi.JOB_STATUS_FINALIZED and |
250 |
backend.job_is_still_running(vm) and
|
251 |
not backend.vm_exists_in_backend(vm)):
|
252 |
raise faults.BuildInProgress("Server is being build") |
253 |
log.info("Deleting VM %s", vm)
|
254 |
return backend.delete_instance(vm)
|
255 |
|
256 |
|
257 |
@server_command("START") |
258 |
def start(vm): |
259 |
log.info("Starting VM %s", vm)
|
260 |
return backend.startup_instance(vm)
|
261 |
|
262 |
|
263 |
@server_command("STOP") |
264 |
def stop(vm): |
265 |
log.info("Stopping VM %s", vm)
|
266 |
return backend.shutdown_instance(vm)
|
267 |
|
268 |
|
269 |
@server_command("REBOOT") |
270 |
def reboot(vm, reboot_type): |
271 |
if reboot_type not in ("SOFT", "HARD"): |
272 |
raise faults.BadRequest("Malformed request. Invalid reboot" |
273 |
" type %s" % reboot_type)
|
274 |
log.info("Rebooting VM %s. Type %s", vm, reboot_type)
|
275 |
|
276 |
return backend.reboot_instance(vm, reboot_type.lower())
|
277 |
|
278 |
|
279 |
def resize(vm, flavor): |
280 |
action_fields = {"beparams": {"vcpus": flavor.cpu, |
281 |
"maxmem": flavor.ram}}
|
282 |
comm = server_command("RESIZE", action_fields=action_fields)
|
283 |
return comm(_resize)(vm, flavor)
|
284 |
|
285 |
|
286 |
def _resize(vm, flavor): |
287 |
old_flavor = vm.flavor |
288 |
# User requested the same flavor
|
289 |
if old_flavor.id == flavor.id:
|
290 |
raise faults.BadRequest("Server '%s' flavor is already '%s'." |
291 |
% (vm, flavor)) |
292 |
# Check that resize can be performed
|
293 |
if old_flavor.disk != flavor.disk:
|
294 |
raise faults.BadRequest("Cannot resize instance disk.") |
295 |
if old_flavor.disk_template != flavor.disk_template:
|
296 |
raise faults.BadRequest("Cannot change instance disk template.") |
297 |
|
298 |
log.info("Resizing VM from flavor '%s' to '%s", old_flavor, flavor)
|
299 |
return backend.resize_instance(vm, vcpus=flavor.cpu, memory=flavor.ram)
|
300 |
|
301 |
|
302 |
@server_command("SET_FIREWALL_PROFILE") |
303 |
def set_firewall_profile(vm, profile, nic): |
304 |
log.info("Setting VM %s, NIC %s, firewall %s", vm, nic, profile)
|
305 |
|
306 |
if profile not in [x[0] for x in NetworkInterface.FIREWALL_PROFILES]: |
307 |
raise faults.BadRequest("Unsupported firewall profile") |
308 |
backend.set_firewall_profile(vm, profile=profile, nic=nic) |
309 |
return None |
310 |
|
311 |
|
312 |
@server_command("CONNECT") |
313 |
def connect(vm, network, port=None): |
314 |
if port is None: |
315 |
port = _create_port(vm.userid, network) |
316 |
associate_port_with_machine(port, vm) |
317 |
|
318 |
log.info("Creating NIC %s with IPv4 Address %s", port, port.ipv4_address)
|
319 |
|
320 |
return backend.connect_to_network(vm, port)
|
321 |
|
322 |
|
323 |
@server_command("DISCONNECT") |
324 |
def disconnect(vm, nic): |
325 |
log.info("Removing NIC %s from VM %s", nic, vm)
|
326 |
return backend.disconnect_from_network(vm, nic)
|
327 |
|
328 |
|
329 |
def console(vm, console_type): |
330 |
"""Arrange for an OOB console of the specified type
|
331 |
|
332 |
This method arranges for an OOB console of the specified type.
|
333 |
Only consoles of type "vnc" are supported for now.
|
334 |
|
335 |
It uses a running instance of vncauthproxy to setup proper
|
336 |
VNC forwarding with a random password, then returns the necessary
|
337 |
VNC connection info to the caller.
|
338 |
|
339 |
"""
|
340 |
log.info("Get console VM %s, type %s", vm, console_type)
|
341 |
|
342 |
# Use RAPI to get VNC console information for this instance
|
343 |
if vm.operstate != "STARTED": |
344 |
raise faults.BadRequest('Server not in ACTIVE state.') |
345 |
|
346 |
if settings.TEST:
|
347 |
console_data = {'kind': 'vnc', 'host': 'ganeti_node', 'port': 1000} |
348 |
else:
|
349 |
console_data = backend.get_instance_console(vm) |
350 |
|
351 |
if console_data['kind'] != 'vnc': |
352 |
message = 'got console of kind %s, not "vnc"' % console_data['kind'] |
353 |
raise faults.ServiceUnavailable(message)
|
354 |
|
355 |
# Let vncauthproxy decide on the source port.
|
356 |
# The alternative: static allocation, e.g.
|
357 |
# sport = console_data['port'] - 1000
|
358 |
sport = 0
|
359 |
daddr = console_data['host']
|
360 |
dport = console_data['port']
|
361 |
password = util.random_password() |
362 |
|
363 |
if settings.TEST:
|
364 |
fwd = {'source_port': 1234, 'status': 'OK'} |
365 |
else:
|
366 |
fwd = request_vnc_forwarding(sport, daddr, dport, password) |
367 |
|
368 |
if fwd['status'] != "OK": |
369 |
raise faults.ServiceUnavailable('vncauthproxy returned error status') |
370 |
|
371 |
# Verify that the VNC server settings haven't changed
|
372 |
if not settings.TEST: |
373 |
if console_data != backend.get_instance_console(vm):
|
374 |
raise faults.ServiceUnavailable('VNC Server settings changed.') |
375 |
|
376 |
console = { |
377 |
'type': 'vnc', |
378 |
'host': getfqdn(),
|
379 |
'port': fwd['source_port'], |
380 |
'password': password}
|
381 |
|
382 |
return console
|
383 |
|
384 |
|
385 |
def rename(server, new_name): |
386 |
"""Rename a VirtualMachine."""
|
387 |
old_name = server.name |
388 |
server.name = new_name |
389 |
server.save() |
390 |
log.info("Renamed server '%s' from '%s' to '%s'", server, old_name,
|
391 |
new_name) |
392 |
return server
|
393 |
|
394 |
|
395 |
@transaction.commit_on_success
|
396 |
def create_port(*args, **kwargs): |
397 |
return _create_port(*args, **kwargs)
|
398 |
|
399 |
|
400 |
def _create_port(userid, network, machine=None, use_ipaddress=None, |
401 |
address=None, name="", security_groups=None, |
402 |
device_owner=None):
|
403 |
"""Create a new port on the specified network.
|
404 |
|
405 |
Create a new Port(NetworkInterface model) on the specified Network. If
|
406 |
'machine' is specified, the machine will be connected to the network using
|
407 |
this port. If 'use_ipaddress' argument is specified, the port will be
|
408 |
assigned this IPAddress. Otherwise, an IPv4 address from the IPv4 subnet
|
409 |
will be allocated.
|
410 |
|
411 |
"""
|
412 |
if network.state != "ACTIVE": |
413 |
raise faults.Conflict("Cannot create port while network '%s' is in" |
414 |
" '%s' status" % (network.id, network.state))
|
415 |
elif network.action == "DESTROY": |
416 |
msg = "Cannot create port. Network %s is being deleted."
|
417 |
raise faults.Conflict(msg % network.id)
|
418 |
elif network.drained:
|
419 |
raise faults.Conflict("Cannot create port while network %s is in" |
420 |
" 'SNF:DRAINED' status" % network.id)
|
421 |
|
422 |
ipaddress = None
|
423 |
if use_ipaddress is not None: |
424 |
# Use an existing IPAddress object.
|
425 |
ipaddress = use_ipaddress |
426 |
if ipaddress and (ipaddress.network_id != network.id): |
427 |
msg = "IP Address %s does not belong to network %s"
|
428 |
raise faults.Conflict(msg % (ipaddress.address, network.id))
|
429 |
else:
|
430 |
# If network has IPv4 subnets, try to allocate the address that the
|
431 |
# the user specified or a random one.
|
432 |
if network.subnets.filter(ipversion=4).exists(): |
433 |
ipaddress = ips.allocate_ip(network, userid=userid, |
434 |
address=address) |
435 |
elif address is not None: |
436 |
raise faults.BadRequest("Address %s is not a valid IP for the" |
437 |
" defined network subnets" % address)
|
438 |
|
439 |
if ipaddress is not None and ipaddress.nic is not None: |
440 |
raise faults.Conflict("IP address '%s' is already in use" % |
441 |
ipaddress.address) |
442 |
|
443 |
port = NetworkInterface.objects.create(network=network, |
444 |
state="DOWN",
|
445 |
userid=userid, |
446 |
device_owner=None,
|
447 |
name=name) |
448 |
|
449 |
# add the security groups if any
|
450 |
if security_groups:
|
451 |
port.security_groups.add(*security_groups) |
452 |
|
453 |
if ipaddress is not None: |
454 |
# Associate IPAddress with the Port
|
455 |
ipaddress.nic = port |
456 |
ipaddress.save() |
457 |
|
458 |
if machine is not None: |
459 |
# Connect port to the instance.
|
460 |
machine = connect(machine, network, port) |
461 |
jobID = machine.task_job_id |
462 |
log.info("Created Port %s with IP %s. Ganeti Job: %s",
|
463 |
port, ipaddress, jobID) |
464 |
else:
|
465 |
log.info("Created Port %s with IP %s not attached to any instance",
|
466 |
port, ipaddress) |
467 |
|
468 |
return port
|
469 |
|
470 |
|
471 |
def associate_port_with_machine(port, machine): |
472 |
"""Associate a Port with a VirtualMachine.
|
473 |
|
474 |
Associate the port with the VirtualMachine and add an entry to the
|
475 |
IPAddressLog if the port has a public IPv4 address from a public network.
|
476 |
|
477 |
"""
|
478 |
if port.machine is not None: |
479 |
raise faults.Conflict("Port %s is already in use." % port.id) |
480 |
if port.network.public:
|
481 |
ipv4_address = port.ipv4_address |
482 |
if ipv4_address is not None: |
483 |
ip_log = IPAddressLog.objects.create(server_id=machine.id, |
484 |
network_id=port.network_id, |
485 |
address=ipv4_address, |
486 |
active=True)
|
487 |
log.debug("Created IP log entry %s", ip_log)
|
488 |
port.machine = machine |
489 |
port.state = "BUILD"
|
490 |
port.device_owner = "vm"
|
491 |
port.save() |
492 |
return port
|
493 |
|
494 |
|
495 |
@transaction.commit_on_success
|
496 |
def delete_port(port): |
497 |
"""Delete a port by removing the NIC card from the instance.
|
498 |
|
499 |
Send a Job to remove the NIC card from the instance. The port
|
500 |
will be deleted and the associated IPv4 addressess will be released
|
501 |
when the job completes successfully.
|
502 |
|
503 |
"""
|
504 |
|
505 |
if port.machine is not None: |
506 |
vm = disconnect(port.machine, port) |
507 |
log.info("Removing port %s, Job: %s", port, vm.task_job_id)
|
508 |
else:
|
509 |
backend.remove_nic_ips(port) |
510 |
port.delete() |
511 |
log.info("Removed port %s", port)
|
512 |
|
513 |
return port
|
514 |
|
515 |
|
516 |
def create_instance_ports(user_id, networks=None): |
517 |
# First connect the instance to the networks defined by the admin
|
518 |
forced_ports = create_ports_for_setting(user_id, category="admin")
|
519 |
if networks is None: |
520 |
# If the user did not asked for any networks, connect instance to
|
521 |
# default networks as defined by the admin
|
522 |
ports = create_ports_for_setting(user_id, category="default")
|
523 |
else:
|
524 |
# Else just connect to the networks that the user defined
|
525 |
ports = create_ports_for_request(user_id, networks) |
526 |
return forced_ports + ports
|
527 |
|
528 |
|
529 |
def create_ports_for_setting(user_id, category): |
530 |
if category == "admin": |
531 |
network_setting = settings.CYCLADES_FORCED_SERVER_NETWORKS |
532 |
elif category == "default": |
533 |
network_setting = settings.CYCLADES_DEFAULT_SERVER_NETWORKS |
534 |
else:
|
535 |
raise ValueError("Unknown category: %s" % category) |
536 |
|
537 |
ports = [] |
538 |
for network_ids in network_setting: |
539 |
# Treat even simple network IDs as group of networks with one network
|
540 |
if type(network_ids) not in (list, tuple): |
541 |
network_ids = [network_ids] |
542 |
|
543 |
for network_id in network_ids: |
544 |
try:
|
545 |
ports.append(_port_from_setting(user_id, network_id, category)) |
546 |
break
|
547 |
except faults.Conflict:
|
548 |
# Try all network IDs in the network group
|
549 |
pass
|
550 |
|
551 |
# Diffrent exception for each category!
|
552 |
if category == "admin": |
553 |
exception = faults.ServiceUnavailable |
554 |
else:
|
555 |
exception = faults.Conflict |
556 |
raise exception("Cannot connect instance to any of the following" |
557 |
" networks %s" % network_ids)
|
558 |
return ports
|
559 |
|
560 |
|
561 |
def _port_from_setting(user_id, network_id, category): |
562 |
# TODO: Fix this..you need only IPv4 and only IPv6 network
|
563 |
if network_id == "SNF:ANY_PUBLIC_IPV4": |
564 |
return create_public_ipv4_port(user_id, category=category)
|
565 |
elif network_id == "SNF:ANY_PUBLIC_IPV6": |
566 |
return create_public_ipv6_port(user_id, category=category)
|
567 |
elif network_id == "SNF:ANY_PUBLIC": |
568 |
try:
|
569 |
return create_public_ipv4_port(user_id, category=category)
|
570 |
except faults.Conflict:
|
571 |
return create_public_ipv6_port(user_id, category=category)
|
572 |
else: # Case of network ID |
573 |
if category in ["user", "default"]: |
574 |
return _port_for_request(user_id, {"uuid": network_id}) |
575 |
elif category == "admin": |
576 |
network = util.get_network(network_id, user_id, non_deleted=True)
|
577 |
return _create_port(user_id, network)
|
578 |
else:
|
579 |
raise ValueError("Unknown category: %s" % category) |
580 |
|
581 |
|
582 |
def create_public_ipv4_port(user_id, network=None, address=None, |
583 |
category="user"):
|
584 |
"""Create a port in a public IPv4 network.
|
585 |
|
586 |
Create a port in a public IPv4 network (that may also have an IPv6
|
587 |
subnet). If the category is 'user' or 'default' this will try to use
|
588 |
one of the users floating IPs. If the category is 'admin' will
|
589 |
create a port to the public network (without floating IPs or quotas).
|
590 |
|
591 |
"""
|
592 |
if category in ["user", "default"]: |
593 |
if address is None: |
594 |
ipaddress = ips.get_free_floating_ip(user_id, network) |
595 |
else:
|
596 |
ipaddress = util.get_floating_ip_by_address(user_id, address, |
597 |
for_update=True)
|
598 |
elif category == "admin": |
599 |
if network is None: |
600 |
ipaddress = ips.allocate_public_ip(user_id) |
601 |
else:
|
602 |
ipaddress = ips.allocate_ip(network, user_id) |
603 |
else:
|
604 |
raise ValueError("Unknown category: %s" % category) |
605 |
if network is None: |
606 |
network = ipaddress.network |
607 |
return _create_port(user_id, network, use_ipaddress=ipaddress)
|
608 |
|
609 |
|
610 |
def create_public_ipv6_port(user_id, category=None): |
611 |
"""Create a port in a public IPv6 only network."""
|
612 |
networks = Network.objects.filter(public=True, deleted=False, |
613 |
drained=False, subnets__ipversion=6)\ |
614 |
.exclude(subnets__ipversion=4)
|
615 |
if networks:
|
616 |
return _create_port(user_id, networks[0]) |
617 |
else:
|
618 |
msg = "No available IPv6 only network!"
|
619 |
log.error(msg) |
620 |
raise faults.Conflict(msg)
|
621 |
|
622 |
|
623 |
def create_ports_for_request(user_id, networks): |
624 |
"""Create the server ports requested by the user.
|
625 |
|
626 |
Create the ports for the new servers as requested in the 'networks'
|
627 |
attribute. The networks attribute contains either a list of network IDs
|
628 |
('uuid') or a list of ports IDs ('port'). In case of network IDs, the user
|
629 |
can also specify an IPv4 address ('fixed_ip'). In order to connect to a
|
630 |
public network, the 'fixed_ip' attribute must contain the IPv4 address of a
|
631 |
floating IP. If the network is public but the 'fixed_ip' attribute is not
|
632 |
specified, the system will automatically reserve one of the users floating
|
633 |
IPs.
|
634 |
|
635 |
"""
|
636 |
return [_port_for_request(user_id, network) for network in networks] |
637 |
|
638 |
|
639 |
def _port_for_request(user_id, network_dict): |
640 |
port_id = network_dict.get("port")
|
641 |
network_id = network_dict.get("uuid")
|
642 |
if port_id is not None: |
643 |
return util.get_port(port_id, user_id, for_update=True) |
644 |
elif network_id is not None: |
645 |
address = network_dict.get("fixed_ip")
|
646 |
network = util.get_network(network_id, user_id, non_deleted=True)
|
647 |
if network.public:
|
648 |
if network.subnet4 is not None: |
649 |
if not "fixed_ip" in network_dict: |
650 |
return create_public_ipv4_port(user_id, network)
|
651 |
elif address is None: |
652 |
msg = "Cannot connect to public network"
|
653 |
raise faults.BadRequest(msg % network.id)
|
654 |
else:
|
655 |
return create_public_ipv4_port(user_id, network, address)
|
656 |
else:
|
657 |
raise faults.Forbidden("Cannot connect to IPv6 only public" |
658 |
" network %" % network.id)
|
659 |
else:
|
660 |
return _create_port(user_id, network, address=address)
|
661 |
else:
|
662 |
raise faults.BadRequest("Network 'uuid' or 'port' attribute" |
663 |
" is required.")
|