root / snf-cyclades-app / synnefo / api / servers.py @ aa8230bd
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from base64 import b64decode |
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from django.conf import settings |
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from django.conf.urls.defaults import patterns |
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from django.db import transaction |
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from django.http import HttpResponse |
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from django.template.loader import render_to_string |
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from django.utils import simplejson as json |
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from synnefo.api import faults, util |
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from synnefo.api.actions import server_actions |
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from synnefo.api.common import method_not_allowed |
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from synnefo.db.models import VirtualMachine, VirtualMachineMetadata |
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from synnefo.logic.backend import create_instance, delete_instance |
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from synnefo.logic.utils import get_rsapi_state |
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from synnefo.logic.rapi import GanetiApiError |
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from synnefo.logic.backend_allocator import BackendAllocator |
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from random import choice |
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from logging import getLogger |
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log = getLogger('synnefo.api')
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urlpatterns = patterns('synnefo.api.servers',
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(r'^(?:/|.json|.xml)?$', 'demux'), |
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(r'^/detail(?:.json|.xml)?$', 'list_servers', {'detail': True}), |
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(r'^/(\d+)(?:.json|.xml)?$', 'server_demux'), |
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(r'^/(\d+)/action(?:.json|.xml)?$', 'server_action'), |
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(r'^/(\d+)/ips(?:.json|.xml)?$', 'list_addresses'), |
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(r'^/(\d+)/ips/(.+?)(?:.json|.xml)?$', 'list_addresses_by_network'), |
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(r'^/(\d+)/meta(?:.json|.xml)?$', 'metadata_demux'), |
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(r'^/(\d+)/meta/(.+?)(?:.json|.xml)?$', 'metadata_item_demux'), |
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(r'^/(\d+)/stats(?:.json|.xml)?$', 'server_stats'), |
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) |
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def demux(request): |
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if request.method == 'GET': |
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return list_servers(request)
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elif request.method == 'POST': |
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return create_server(request)
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else:
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return method_not_allowed(request)
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def server_demux(request, server_id): |
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if request.method == 'GET': |
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return get_server_details(request, server_id)
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elif request.method == 'PUT': |
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return update_server_name(request, server_id)
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elif request.method == 'DELETE': |
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return delete_server(request, server_id)
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else:
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return method_not_allowed(request)
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def metadata_demux(request, server_id): |
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if request.method == 'GET': |
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return list_metadata(request, server_id)
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elif request.method == 'POST': |
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return update_metadata(request, server_id)
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else:
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return method_not_allowed(request)
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def metadata_item_demux(request, server_id, key): |
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if request.method == 'GET': |
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return get_metadata_item(request, server_id, key)
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elif request.method == 'PUT': |
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return create_metadata_item(request, server_id, key)
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elif request.method == 'DELETE': |
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return delete_metadata_item(request, server_id, key)
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else:
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return method_not_allowed(request)
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def nic_to_dict(nic): |
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d = {'id': util.construct_nic_id(nic),
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'network_id': str(nic.network.id), |
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'mac_address': nic.mac,
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'ipv4': nic.ipv4 if nic.ipv4 else None, |
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'ipv6': nic.ipv6 if nic.ipv6 else None} |
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if nic.firewall_profile:
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d['firewallProfile'] = nic.firewall_profile
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return d
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def vm_to_dict(vm, detail=False): |
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d = dict(id=vm.id, name=vm.name)
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if detail:
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d['status'] = get_rsapi_state(vm)
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d['progress'] = 100 if get_rsapi_state(vm) == 'ACTIVE' \ |
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else vm.buildpercentage
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d['hostId'] = vm.hostid
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d['updated'] = util.isoformat(vm.updated)
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d['created'] = util.isoformat(vm.created)
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d['flavorRef'] = vm.flavor.id
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d['imageRef'] = vm.imageid
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metadata = dict((m.meta_key, m.meta_value) for m in vm.metadata.all()) |
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if metadata:
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d['metadata'] = {'values': metadata} |
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attachments = [nic_to_dict(nic) for nic in vm.nics.all()] |
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if attachments:
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d['attachments'] = {'values': attachments} |
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return d
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def render_server(request, server, status=200): |
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if request.serialization == 'xml': |
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data = render_to_string('server.xml', {
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'server': server,
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'is_root': True}) |
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else:
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data = json.dumps({'server': server})
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return HttpResponse(data, status=status)
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@util.api_method('GET') |
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def list_servers(request, detail=False): |
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# Normal Response Codes: 200, 203
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badRequest (400),
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# overLimit (413)
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log.debug('list_servers detail=%s', detail)
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user_vms = VirtualMachine.objects.filter(userid=request.user_uniq) |
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since = util.isoparse(request.GET.get('changes-since'))
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if since:
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user_vms = user_vms.filter(updated__gte=since) |
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if not user_vms: |
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return HttpResponse(status=304) |
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else:
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user_vms = user_vms.filter(deleted=False)
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servers = [vm_to_dict(server, detail) for server in user_vms] |
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if request.serialization == 'xml': |
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data = render_to_string('list_servers.xml', {
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'servers': servers,
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'detail': detail})
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else:
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data = json.dumps({'servers': {'values': servers}}) |
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return HttpResponse(data, status=200) |
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@util.api_method('POST') |
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# Use manual transactions. Backend and IP pool allocations need exclusive
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# access (SELECT..FOR UPDATE). Running create_server with commit_on_success
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# would result in backends and public networks to be locked until the job is
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# sent to the Ganeti backend.
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@transaction.commit_manually
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def create_server(request): |
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# Normal Response Code: 202
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badMediaType(415),
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# itemNotFound (404),
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# badRequest (400),
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# serverCapacityUnavailable (503),
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# overLimit (413)
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try:
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req = util.get_request_dict(request) |
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log.info('create_server %s', req)
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try:
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server = req['server']
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name = server['name']
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metadata = server.get('metadata', {})
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assert isinstance(metadata, dict) |
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image_id = server['imageRef']
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flavor_id = server['flavorRef']
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personality = server.get('personality', [])
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assert isinstance(personality, list) |
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except (KeyError, AssertionError): |
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raise faults.BadRequest("Malformed request") |
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if len(personality) > settings.MAX_PERSONALITY: |
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raise faults.OverLimit("Maximum number of personalities exceeded") |
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for p in personality: |
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# Verify that personalities are well-formed
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try:
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assert isinstance(p, dict) |
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keys = set(p.keys())
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allowed = set(['contents', 'group', 'mode', 'owner', 'path']) |
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assert keys.issubset(allowed)
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contents = p['contents']
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if len(contents) > settings.MAX_PERSONALITY_SIZE: |
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# No need to decode if contents already exceed limit
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raise faults.OverLimit("Maximum size of personality exceeded") |
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if len(b64decode(contents)) > settings.MAX_PERSONALITY_SIZE: |
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raise faults.OverLimit("Maximum size of personality exceeded") |
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except AssertionError: |
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raise faults.BadRequest("Malformed personality in request") |
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image = {} |
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img = util.get_image(image_id, request.user_uniq) |
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properties = img.get('properties', {})
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image['backend_id'] = img['location'] |
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image['format'] = img['disk_format'] |
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image['metadata'] = dict((key.upper(), val) \ |
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for key, val in properties.items()) |
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# Ensure that request if for active flavor
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flavor = util.get_flavor(flavor_id, include_deleted=False)
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password = util.random_password() |
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count = VirtualMachine.objects.filter(userid=request.user_uniq, |
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deleted=False).count()
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# get user limit
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vms_limit_for_user = \ |
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settings.VMS_USER_QUOTA.get(request.user_uniq, |
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settings.MAX_VMS_PER_USER) |
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if count >= vms_limit_for_user:
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raise faults.OverLimit("Server count limit exceeded for your account.") |
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backend_allocator = BackendAllocator() |
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backend = backend_allocator.allocate(flavor) |
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if backend is None: |
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log.error("No available backends for VM with flavor %s", flavor)
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raise faults.ServiceUnavailable("No available backends") |
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except:
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transaction.rollback() |
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raise
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else:
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transaction.commit() |
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try:
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if settings.PUBLIC_ROUTED_USE_POOL:
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(network, address) = util.allocate_public_address(backend) |
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if address is None: |
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log.error("Public networks of backend %s are full", backend)
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msg = "Failed to allocate public IP for new VM"
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raise faults.ServiceUnavailable(msg)
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nic = {'ip': address, 'network': network.backend_id} |
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else:
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network = choice(list(util.backend_public_networks(backend)))
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nic = {'ip': 'pool', 'network': network.backend_id} |
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except:
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transaction.rollback() |
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raise
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else:
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transaction.commit() |
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try:
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# We must save the VM instance now, so that it gets a valid
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# vm.backend_vm_id.
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vm = VirtualMachine.objects.create( |
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name=name, |
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backend=backend, |
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userid=request.user_uniq, |
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imageid=image_id, |
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flavor=flavor) |
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try:
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jobID = create_instance(vm, nic, flavor, image, password, personality) |
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except GanetiApiError:
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vm.delete() |
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raise
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log.info("User %s created VM %s, NIC %s, Backend %s, JobID %s",
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request.user_uniq, vm, nic, backend, str(jobID))
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vm.backendjobid = jobID |
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vm.save() |
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for key, val in metadata.items(): |
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VirtualMachineMetadata.objects.create( |
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meta_key=key, |
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meta_value=val, |
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vm=vm) |
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server = vm_to_dict(vm, detail=True)
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server['status'] = 'BUILD' |
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server['adminPass'] = password
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respsone = render_server(request, server, status=202)
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except:
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transaction.rollback() |
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raise
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else:
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transaction.commit() |
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return respsone
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@util.api_method('GET') |
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def get_server_details(request, server_id): |
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# Normal Response Codes: 200, 203
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badRequest (400),
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# itemNotFound (404),
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# overLimit (413)
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log.debug('get_server_details %s', server_id)
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vm = util.get_vm(server_id, request.user_uniq) |
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server = vm_to_dict(vm, detail=True)
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return render_server(request, server)
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@util.api_method('PUT') |
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def update_server_name(request, server_id): |
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# Normal Response Code: 204
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# badRequest (400),
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# badMediaType(415),
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# itemNotFound (404),
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# buildInProgress (409),
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# overLimit (413)
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req = util.get_request_dict(request) |
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log.info('update_server_name %s %s', server_id, req)
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try:
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name = req['server']['name'] |
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except (TypeError, KeyError): |
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raise faults.BadRequest("Malformed request") |
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vm = util.get_vm(server_id, request.user_uniq) |
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vm.name = name |
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vm.save() |
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return HttpResponse(status=204) |
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@util.api_method('DELETE') |
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@transaction.commit_on_success
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def delete_server(request, server_id): |
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# Normal Response Codes: 204
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# Error Response Codes: computeFault (400, 500),
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# serviceUnavailable (503),
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# unauthorized (401),
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# itemNotFound (404),
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# unauthorized (401),
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# buildInProgress (409),
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# overLimit (413)
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log.info('delete_server %s', server_id)
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vm = util.get_vm(server_id, request.user_uniq) |
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delete_instance(vm) |
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return HttpResponse(status=204) |
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|
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@util.api_method('POST') |
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def server_action(request, server_id): |
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req = util.get_request_dict(request) |
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log.debug('server_action %s %s', server_id, req)
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vm = util.get_vm(server_id, request.user_uniq) |
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if len(req) != 1: |
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raise faults.BadRequest("Malformed request") |
399 |
|
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key = req.keys()[0]
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val = req[key] |
402 |
|
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try:
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assert isinstance(val, dict) |
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return server_actions[key](request, vm, req[key])
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except KeyError: |
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raise faults.BadRequest("Unknown action") |
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except AssertionError: |
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raise faults.BadRequest("Invalid argument") |
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|
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|
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@util.api_method('GET') |
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def list_addresses(request, server_id): |
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# Normal Response Codes: 200, 203
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# Error Response Codes: computeFault (400, 500),
|
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# serviceUnavailable (503),
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# unauthorized (401),
|
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# badRequest (400),
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# overLimit (413)
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|
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log.debug('list_addresses %s', server_id)
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vm = util.get_vm(server_id, request.user_uniq) |
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addresses = [nic_to_dict(nic) for nic in vm.nics.all()] |
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|
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if request.serialization == 'xml': |
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data = render_to_string('list_addresses.xml', {'addresses': addresses}) |
427 |
else:
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data = json.dumps({'addresses': {'values': addresses}}) |
429 |
|
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return HttpResponse(data, status=200) |
431 |
|
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|
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@util.api_method('GET') |
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def list_addresses_by_network(request, server_id, network_id): |
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# Normal Response Codes: 200, 203
|
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# Error Response Codes: computeFault (400, 500),
|
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# serviceUnavailable (503),
|
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# unauthorized (401),
|
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# badRequest (400),
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# itemNotFound (404),
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# overLimit (413)
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|
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log.debug('list_addresses_by_network %s %s', server_id, network_id)
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machine = util.get_vm(server_id, request.user_uniq) |
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network = util.get_network(network_id, request.user_uniq) |
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nic = util.get_nic(machine, network) |
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address = nic_to_dict(nic) |
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|
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if request.serialization == 'xml': |
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data = render_to_string('address.xml', {'address': address}) |
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else:
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data = json.dumps({'network': address})
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return HttpResponse(data, status=200) |
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|
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|
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@util.api_method('GET') |
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def list_metadata(request, server_id): |
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# Normal Response Codes: 200, 203
|
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# Error Response Codes: computeFault (400, 500),
|
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# serviceUnavailable (503),
|
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# unauthorized (401),
|
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# badRequest (400),
|
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# overLimit (413)
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|
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log.debug('list_server_metadata %s', server_id)
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vm = util.get_vm(server_id, request.user_uniq) |
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metadata = dict((m.meta_key, m.meta_value) for m in vm.metadata.all()) |
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return util.render_metadata(request, metadata, use_values=True, status=200) |
470 |
|
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|
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@util.api_method('POST') |
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def update_metadata(request, server_id): |
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# Normal Response Code: 201
|
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# Error Response Codes: computeFault (400, 500),
|
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# serviceUnavailable (503),
|
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# unauthorized (401),
|
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# badRequest (400),
|
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# buildInProgress (409),
|
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# badMediaType(415),
|
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# overLimit (413)
|
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|
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req = util.get_request_dict(request) |
484 |
log.info('update_server_metadata %s %s', server_id, req)
|
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vm = util.get_vm(server_id, request.user_uniq) |
486 |
try:
|
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metadata = req['metadata']
|
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assert isinstance(metadata, dict) |
489 |
except (KeyError, AssertionError): |
490 |
raise faults.BadRequest("Malformed request") |
491 |
|
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for key, val in metadata.items(): |
493 |
meta, created = vm.metadata.get_or_create(meta_key=key) |
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meta.meta_value = val |
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meta.save() |
496 |
|
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vm.save() |
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vm_meta = dict((m.meta_key, m.meta_value) for m in vm.metadata.all()) |
499 |
return util.render_metadata(request, vm_meta, status=201) |
500 |
|
501 |
|
502 |
@util.api_method('GET') |
503 |
def get_metadata_item(request, server_id, key): |
504 |
# Normal Response Codes: 200, 203
|
505 |
# Error Response Codes: computeFault (400, 500),
|
506 |
# serviceUnavailable (503),
|
507 |
# unauthorized (401),
|
508 |
# itemNotFound (404),
|
509 |
# badRequest (400),
|
510 |
# overLimit (413)
|
511 |
|
512 |
log.debug('get_server_metadata_item %s %s', server_id, key)
|
513 |
vm = util.get_vm(server_id, request.user_uniq) |
514 |
meta = util.get_vm_meta(vm, key) |
515 |
d = {meta.meta_key: meta.meta_value} |
516 |
return util.render_meta(request, d, status=200) |
517 |
|
518 |
|
519 |
@util.api_method('PUT') |
520 |
@transaction.commit_on_success
|
521 |
def create_metadata_item(request, server_id, key): |
522 |
# Normal Response Code: 201
|
523 |
# Error Response Codes: computeFault (400, 500),
|
524 |
# serviceUnavailable (503),
|
525 |
# unauthorized (401),
|
526 |
# itemNotFound (404),
|
527 |
# badRequest (400),
|
528 |
# buildInProgress (409),
|
529 |
# badMediaType(415),
|
530 |
# overLimit (413)
|
531 |
|
532 |
req = util.get_request_dict(request) |
533 |
log.info('create_server_metadata_item %s %s %s', server_id, key, req)
|
534 |
vm = util.get_vm(server_id, request.user_uniq) |
535 |
try:
|
536 |
metadict = req['meta']
|
537 |
assert isinstance(metadict, dict) |
538 |
assert len(metadict) == 1 |
539 |
assert key in metadict |
540 |
except (KeyError, AssertionError): |
541 |
raise faults.BadRequest("Malformed request") |
542 |
|
543 |
meta, created = VirtualMachineMetadata.objects.get_or_create( |
544 |
meta_key=key, |
545 |
vm=vm) |
546 |
|
547 |
meta.meta_value = metadict[key] |
548 |
meta.save() |
549 |
vm.save() |
550 |
d = {meta.meta_key: meta.meta_value} |
551 |
return util.render_meta(request, d, status=201) |
552 |
|
553 |
|
554 |
@util.api_method('DELETE') |
555 |
@transaction.commit_on_success
|
556 |
def delete_metadata_item(request, server_id, key): |
557 |
# Normal Response Code: 204
|
558 |
# Error Response Codes: computeFault (400, 500),
|
559 |
# serviceUnavailable (503),
|
560 |
# unauthorized (401),
|
561 |
# itemNotFound (404),
|
562 |
# badRequest (400),
|
563 |
# buildInProgress (409),
|
564 |
# badMediaType(415),
|
565 |
# overLimit (413),
|
566 |
|
567 |
log.info('delete_server_metadata_item %s %s', server_id, key)
|
568 |
vm = util.get_vm(server_id, request.user_uniq) |
569 |
meta = util.get_vm_meta(vm, key) |
570 |
meta.delete() |
571 |
vm.save() |
572 |
return HttpResponse(status=204) |
573 |
|
574 |
|
575 |
@util.api_method('GET') |
576 |
def server_stats(request, server_id): |
577 |
# Normal Response Codes: 200
|
578 |
# Error Response Codes: computeFault (400, 500),
|
579 |
# serviceUnavailable (503),
|
580 |
# unauthorized (401),
|
581 |
# badRequest (400),
|
582 |
# itemNotFound (404),
|
583 |
# overLimit (413)
|
584 |
|
585 |
log.debug('server_stats %s', server_id)
|
586 |
vm = util.get_vm(server_id, request.user_uniq) |
587 |
#secret = util.encrypt(vm.backend_vm_id)
|
588 |
secret = vm.backend_vm_id # XXX disable backend id encryption
|
589 |
|
590 |
stats = { |
591 |
'serverRef': vm.id,
|
592 |
'refresh': settings.STATS_REFRESH_PERIOD,
|
593 |
'cpuBar': settings.CPU_BAR_GRAPH_URL % secret,
|
594 |
'cpuTimeSeries': settings.CPU_TIMESERIES_GRAPH_URL % secret,
|
595 |
'netBar': settings.NET_BAR_GRAPH_URL % secret,
|
596 |
'netTimeSeries': settings.NET_TIMESERIES_GRAPH_URL % secret}
|
597 |
|
598 |
if request.serialization == 'xml': |
599 |
data = render_to_string('server_stats.xml', stats)
|
600 |
else:
|
601 |
data = json.dumps({'stats': stats})
|
602 |
|
603 |
return HttpResponse(data, status=200) |