root / snf-cyclades-app / synnefo / api / servers.py @ 6dd70a5c
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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 logging import getLogger |
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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.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 Backend, 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.util.rapi import GanetiApiError |
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from synnefo.logic.backend_allocator import BackendAllocator |
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from django.utils import importlib |
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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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network = nic.network |
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network_id = str(network.id) if not network.public else 'public' |
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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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d = {'id': util.construct_nic_id(nic), 'network_id': network_id, 'mac_address': nic.mac, 'ipv4': ipv4, 'ipv6': ipv6} |
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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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deleted=False)
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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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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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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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req = util.get_request_dict(request) |
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log.debug('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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flavor = util.get_flavor(flavor_id) |
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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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raise Exception |
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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, 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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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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log.info('User %s created vm with %s cpus, %s ram and %s storage',
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request.user_uniq, flavor.cpu, flavor.ram, flavor.disk) |
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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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return render_server(request, server, status=202) |
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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.debug('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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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.debug('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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@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") |
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key = req.keys()[0]
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val = req[key] |
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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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@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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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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if request.serialization == 'xml': |
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data = render_to_string('list_addresses.xml', {'addresses': addresses}) |
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else:
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data = json.dumps({'addresses': {'values': addresses}}) |
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return HttpResponse(data, status=200) |
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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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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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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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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) |
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|
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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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req = util.get_request_dict(request) |
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log.debug('update_server_metadata %s %s', server_id, req)
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vm = util.get_vm(server_id, request.user_uniq) |
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try:
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metadata = req['metadata']
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assert isinstance(metadata, dict) |
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except (KeyError, AssertionError): |
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raise faults.BadRequest("Malformed request") |
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|
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for key, val in metadata.items(): |
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meta, created = vm.metadata.get_or_create(meta_key=key) |
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meta.meta_value = val |
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meta.save() |
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|
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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()) |
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return util.render_metadata(request, vm_meta, status=201) |
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|
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|
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@util.api_method('GET') |
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def get_metadata_item(request, server_id, key): |
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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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# itemNotFound (404),
|
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# badRequest (400),
|
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# overLimit (413)
|
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|
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log.debug('get_server_metadata_item %s %s', server_id, key)
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vm = util.get_vm(server_id, request.user_uniq) |
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meta = util.get_vm_meta(vm, key) |
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d = {meta.meta_key: meta.meta_value} |
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return util.render_meta(request, d, status=200) |
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|
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|
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@util.api_method('PUT') |
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def create_metadata_item(request, server_id, key): |
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# Normal Response Code: 201
|
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# Error Response Codes: computeFault (400, 500),
|
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# serviceUnavailable (503),
|
482 |
# unauthorized (401),
|
483 |
# itemNotFound (404),
|
484 |
# 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) |
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log.debug('create_server_metadata_item %s %s %s', server_id, key, req)
|
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vm = util.get_vm(server_id, request.user_uniq) |
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try:
|
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metadict = req['meta']
|
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assert isinstance(metadict, dict) |
495 |
assert len(metadict) == 1 |
496 |
assert key in metadict |
497 |
except (KeyError, AssertionError): |
498 |
raise faults.BadRequest("Malformed request") |
499 |
|
500 |
meta, created = VirtualMachineMetadata.objects.get_or_create( |
501 |
meta_key=key, |
502 |
vm=vm) |
503 |
|
504 |
meta.meta_value = metadict[key] |
505 |
meta.save() |
506 |
vm.save() |
507 |
d = {meta.meta_key: meta.meta_value} |
508 |
return util.render_meta(request, d, status=201) |
509 |
|
510 |
|
511 |
@util.api_method('DELETE') |
512 |
def delete_metadata_item(request, server_id, key): |
513 |
# Normal Response Code: 204
|
514 |
# Error Response Codes: computeFault (400, 500),
|
515 |
# serviceUnavailable (503),
|
516 |
# unauthorized (401),
|
517 |
# itemNotFound (404),
|
518 |
# badRequest (400),
|
519 |
# buildInProgress (409),
|
520 |
# badMediaType(415),
|
521 |
# overLimit (413),
|
522 |
|
523 |
log.debug('delete_server_metadata_item %s %s', server_id, key)
|
524 |
vm = util.get_vm(server_id, request.user_uniq) |
525 |
meta = util.get_vm_meta(vm, key) |
526 |
meta.delete() |
527 |
vm.save() |
528 |
return HttpResponse(status=204) |
529 |
|
530 |
|
531 |
@util.api_method('GET') |
532 |
def server_stats(request, server_id): |
533 |
# Normal Response Codes: 200
|
534 |
# Error Response Codes: computeFault (400, 500),
|
535 |
# serviceUnavailable (503),
|
536 |
# unauthorized (401),
|
537 |
# badRequest (400),
|
538 |
# itemNotFound (404),
|
539 |
# overLimit (413)
|
540 |
|
541 |
log.debug('server_stats %s', server_id)
|
542 |
vm = util.get_vm(server_id, request.user_uniq) |
543 |
#secret = util.encrypt(vm.backend_vm_id)
|
544 |
secret = vm.backend_vm_id # XXX disable backend id encryption
|
545 |
|
546 |
stats = { |
547 |
'serverRef': vm.id,
|
548 |
'refresh': settings.STATS_REFRESH_PERIOD,
|
549 |
'cpuBar': settings.CPU_BAR_GRAPH_URL % secret,
|
550 |
'cpuTimeSeries': settings.CPU_TIMESERIES_GRAPH_URL % secret,
|
551 |
'netBar': settings.NET_BAR_GRAPH_URL % secret,
|
552 |
'netTimeSeries': settings.NET_TIMESERIES_GRAPH_URL % secret}
|
553 |
|
554 |
if request.serialization == 'xml': |
555 |
data = render_to_string('server_stats.xml', stats)
|
556 |
else:
|
557 |
data = json.dumps({'stats': stats})
|
558 |
|
559 |
return HttpResponse(data, status=200) |