root / api / handlers.py @ 92c53da1
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# vim: ts=4 sts=4 et ai sw=4 fileencoding=utf-8
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#
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# Copyright © 2010 Greek Research and Technology Network
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import simplejson as json |
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from django.conf import settings |
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from django.http import HttpResponse |
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from piston.handler import BaseHandler, AnonymousBaseHandler |
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from synnefo.api.faults import fault, noContent, accepted, created, notModified |
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from synnefo.api.helpers import instance_to_server, paginator |
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from synnefo.util.rapi import GanetiRapiClient, GanetiApiError, CertificateError |
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from synnefo.db.models import * |
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from time import sleep |
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import random |
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import string |
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import logging |
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from datetime import datetime |
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log = logging.getLogger('synnefo.api.handlers')
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try:
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rapi = GanetiRapiClient(*settings.GANETI_CLUSTER_INFO) |
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rapi.GetVersion() |
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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#If we can't connect to the rapi successfully, don't do anything
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VERSIONS = [ |
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{ |
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"status": "CURRENT", |
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"id": "v1.0", |
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"docURL" : "http://docs.rackspacecloud.com/servers/api/v1.0/cs-devguide-20110112.pdf", |
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"wadl" : "http://docs.rackspacecloud.com/servers/api/v1.0/application.wadl" |
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}, |
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{ |
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"status": "CURRENT", |
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"id": "v1.1", |
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"docURL" : "http://docs.openstack.org/openstack-compute/developer/content/", |
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"wadl" : "None yet" |
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}, |
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{ |
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"status": "CURRENT", |
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"id": "v1.0grnet1", |
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"docURL" : "None yet", |
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"wad1" : "None yet" |
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} |
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] |
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#read is called on GET requests
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#create is called on POST, and creates new objects
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#update is called on PUT, and should update an existing product
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#delete is called on DELETE, and should delete an existing object
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class VersionHandler(AnonymousBaseHandler): |
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allowed_methods = ('GET',)
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def read(self, request, number=None): |
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try:
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if number is None: |
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versions = map(lambda v: { |
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"status": v["status"], |
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"id": v["id"], |
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}, VERSIONS) |
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return { "versions": versions } |
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else:
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for version in VERSIONS: |
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if version["id"] == number: |
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return { "version": version } |
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raise fault.itemNotFound
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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class ServerHandler(BaseHandler): |
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"""Handler responsible for the Servers
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handles the listing of Virtual Machines, Creates and Destroys VM's
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@HTTP methods: POST, DELETE, PUT, GET
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@Parameters: POST data with the create data (cpu, ram, etc)
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@Responses: HTTP 202 if successfully call rapi, itemNotFound, serviceUnavailable otherwise
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"""
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allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
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def read(self, request, id=None): |
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from time import sleep |
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sleep(0.5)
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#TODO: delete the sleep once the mock objects are removed
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if id is None: |
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return self.read_all(request) |
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elif id == "detail": |
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return self.read_all(request, detail=True) |
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else:
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return self.read_one(request, id) |
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def read_one(self, request, id): |
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try:
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server = VirtualMachine.objects.get(id=id)
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server = {'status': server.rsapi_state,
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'flavorRef': server.flavor.id,
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'name': server.name,
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'description': server.description,
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'id': server.id,
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'imageRef': server.sourceimage.id,
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'created': server.created,
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'updated': server.updated,
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'hostId': server.hostid,
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'progress': server.rsapi_state == 'ACTIVE' and 100 or 0, |
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#'metadata': {'Server_Label': server.description },
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'metadata':[{'meta': { 'key': {metadata.meta_key: metadata.meta_value}}} for metadata in server.virtualmachinemetadata_set.all()], |
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'addresses': {'public': { 'ip': {'addr': server.ipfour}, 'ip6': {'addr': server.ipsix}},'private': ''}, |
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} |
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return { "server": server } |
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except VirtualMachine.DoesNotExist:
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raise fault.itemNotFound
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except VirtualMachine.MultipleObjectsReturned:
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raise fault.serviceUnavailable
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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@paginator
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def read_all(self, request, detail=False): |
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try:
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changes_since = request.GET.get("changes-since", 0) |
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if changes_since:
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last_update = datetime.fromtimestamp(int(changes_since))
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virtual_servers = VirtualMachine.objects.filter(updated__gt=last_update) |
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if not len(virtual_servers): |
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return notModified
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else:
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virtual_servers = VirtualMachine.objects.filter(deleted=False)
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#get all VM's for now, FIX it to take the user's VMs only yet. also don't get deleted VM's
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if not detail: |
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return { "servers": [ { "id": s.id, "name": s.name } for s in virtual_servers ] } |
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else:
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virtual_servers_list = [{'status': server.rsapi_state,
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'flavorRef': server.flavor.id,
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'name': server.name,
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'id': server.id,
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'description': server.description,
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'created': server.created,
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'updated': server.updated,
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'deleted': server.deleted,
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'imageRef': server.sourceimage.id,
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'hostId': server.hostid,
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'progress': server.rsapi_state == 'ACTIVE' and 100 or 0, |
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#'metadata': {'Server_Label': server.description },
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'metadata':[{'meta': { 'key': {metadata.meta_key: metadata.meta_value}}} for metadata in server.virtualmachinemetadata_set.all()], |
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'addresses': {'public': { 'ip': {'addr': server.ipfour}, 'ip6': {'addr': server.ipsix}},'private': ''}, |
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} for server in virtual_servers] |
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#pass some fake data regarding ip, since we don't have any such data
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return { "servers": virtual_servers_list } |
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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def create(self, request): |
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""" Parse RackSpace API create request to generate rapi create request
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TODO: auto generate and set password
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"""
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# Check if we have all the necessary data in the JSON request
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try:
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server = json.loads(request.raw_post_data)['server']
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name = server['name']
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flavorRef = server['flavorRef']
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flavor = Flavor.objects.get(id=flavorRef) |
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imageRef = server['imageRef']
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image = Image.objects.get(id=imageRef) |
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metadata = server['metadata']
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personality = server.get('personality', None) |
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except (Flavor.DoesNotExist, Image.DoesNotExist):
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raise fault.itemNotFound
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except (Flavor.MultipleObjectsReturned, Image.MultipleObjectsReturned):
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raise fault.serviceUnavailable
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except Exception as e: |
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log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
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raise fault.badRequest
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# TODO: Proper Authn, Authz
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# Everything belongs to a single SynnefoUser for now.
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try:
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owner = SynnefoUser.objects.all()[0]
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except Exception as e: |
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log.exception('Cannot find a single SynnefoUser in the DB: %s' % (e));
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raise fault.unauthorized
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# add the new VM to the local db
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try:
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vm = VirtualMachine.objects.create(sourceimage=image, ipfour='0.0.0.0', ipsix='::1', flavor=flavor, owner=owner) |
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except Exception as e: |
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log.exception("Can't save vm: %s" % e)
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raise fault.serviceUnavailable
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try:
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vm.name = name |
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#vm.description = descr
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vm.save() |
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jobId = rapi.CreateInstance( |
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'create',
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request.META['SERVER_NAME'] == 'testserver' and 'test-server' or vm.backend_id, |
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'plain',
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# disk field of Flavor object is in GB, value specified here is in MB
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# FIXME: Always ask for a 2GB disk, current LVM physical groups are too small:
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# [{"size": flavor.disk * 1000}],
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[{"size": 2000}], |
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[{}], |
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#TODO: select OS from imageRef
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os='debootstrap+default',
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ip_check=False,
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name_check=False,
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#TODO: verify if this is necessary
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pnode = rapi.GetNodes()[0],
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# Dry run when called by unit tests
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dry_run = request.META['SERVER_NAME'] == 'testserver', |
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beparams={ |
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'auto_balance': True, |
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'vcpus': flavor.cpu,
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'memory': flavor.ram,
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}, |
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) |
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log.info('created vm with %s cpus, %s ram and %s storage' % (flavor.cpu, flavor.ram, flavor.disk))
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except (GanetiApiError, CertificateError) as e: |
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log.exception('CreateInstance failed: %s' % e)
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vm.deleted = True
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vm.save() |
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raise fault.serviceUnavailable
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except Exception as e: |
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log.exception('Unexpected error: %s' % e)
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vm.deleted = True
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vm.save() |
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raise fault.serviceUnavailable
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ret = {'server': {
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'id' : vm.id,
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'name' : vm.name,
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"imageRef" : imageRef,
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"flavorRef" : flavorRef,
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"hostId" : vm.hostid,
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"progress" : 0, |
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"status" : 'BUILD', |
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"adminPass" : self.random_password(), |
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"metadata" : {"My Server Name" : vm.description}, |
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"addresses" : {
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"public" : [ ],
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"private" : [ ],
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}, |
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}, |
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} |
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return HttpResponse(json.dumps(ret), mimetype="application/json", status=202) |
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def random_password(self): |
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"return random password"
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number_of_chars = 8
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possible_chars = string.ascii_uppercase + string.ascii_lowercase + string.digits |
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return ''.join(random.choice(possible_chars) for x in range(number_of_chars)) |
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def update(self, request, id): |
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"""Sets and updates Virtual Machine Metadata.
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"""
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try:
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metadata_request = json.loads(request.raw_post_data)['metadata']
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metadata_key = metadata_request.get('metadata_key')
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metadata_value = metadata_request.get('metadata_value')
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vm = VirtualMachine.objects.get(id=id)
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#we only update virtual machine's name atm
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if metadata_key == 'name': |
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vm.name = metadata_value |
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vm.save() |
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return accepted
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except VirtualMachine.DoesNotExist:
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raise fault.itemNotFound
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except VirtualMachine.MultipleObjectsReturned:
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raise fault.serviceUnavailable
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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raise fault.itemNotFound
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def delete(self, request, id): |
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try:
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vm = VirtualMachine.objects.get(id=id)
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#TODO: set the status to DESTROYED
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vm.start_action('DESTROY')
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rapi.DeleteInstance(vm.backend_id) |
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return accepted
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except VirtualMachine.DoesNotExist:
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raise fault.itemNotFound
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except VirtualMachine.MultipleObjectsReturned:
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raise fault.serviceUnavailable
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except GanetiApiError, CertificateError:
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raise fault.serviceUnavailable
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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|
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class ServerAddressHandler(BaseHandler): |
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"""Handler responsible for Server Addresses
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handles Reboot, Shutdown and Start actions.
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@HTTP methods: GET
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@Parameters: Id of server and networkID (eg public, private)
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@Responses: HTTP 200 if successfully call rapi, itemNotFound, serviceUnavailable otherwise
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"""
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allowed_methods = ('GET',)
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def read(self, request, id, networkID=None): |
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"""List IP addresses for a server"""
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try:
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server = VirtualMachine.objects.get(id=id)
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address = {'public': { 'ip': {'addr': server.ipfour}, 'ip6': {'addr': server.ipsix}},'private': ''} |
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except VirtualMachine.DoesNotExist:
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raise fault.itemNotFound
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except VirtualMachine.MultipleObjectsReturned:
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raise fault.serviceUnavailable
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except Exception, e: |
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log.exception('Unexpected error: %s' % e)
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raise fault.serviceUnavailable
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|
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if networkID == "public": |
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address = {'public': { 'ip': {'addr': server.ipfour}, 'ip6': {'addr': server.ipsix}}} |
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elif networkID == "private": |
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address = {'private': ''} |
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elif networkID != None: |
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raise fault.badRequest
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return { "addresses": address } |
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|
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|
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class ServerActionHandler(BaseHandler): |
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"""Handler responsible for Server Actions
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handles Reboot, Shutdown and Start actions.
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@HTTP methods: POST, DELETE, PUT
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@Parameters: POST data with the action (reboot, shutdown, start)
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@Responses: HTTP 202 if successfully call rapi, itemNotFound, serviceUnavailable otherwise
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"""
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allowed_methods = ('POST', 'DELETE', 'PUT') |
364 |
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def create(self, request, id): |
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"""Reboot, Shutdown, Start virtual machine"""
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|
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try:
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requested_action = json.loads(request.raw_post_data) |
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reboot_request = requested_action.get('reboot', None) |
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shutdown_request = requested_action.get('shutdown', None) |
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start_request = requested_action.get('start', None) |
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#action not implemented
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action = reboot_request and 'REBOOT' or shutdown_request and 'STOP' or start_request and 'START' |
375 |
|
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if not action: |
377 |
raise fault.notImplemented
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#test if we can get the vm
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vm = VirtualMachine.objects.get(id=id)
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vm.start_action(action) |
381 |
|
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if reboot_request:
|
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rapi.RebootInstance(vm.backend_id) |
384 |
elif shutdown_request:
|
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rapi.ShutdownInstance(vm.backend_id) |
386 |
elif start_request:
|
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rapi.StartupInstance(vm.backend_id) |
388 |
return accepted
|
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except VirtualMachine.DoesNotExist:
|
390 |
raise fault.itemNotFound
|
391 |
except VirtualMachine.MultipleObjectsReturned:
|
392 |
raise fault.serviceUnavailable
|
393 |
except GanetiApiError, CertificateError:
|
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raise fault.serviceUnavailable
|
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except Exception, e: |
396 |
log.exception('Unexpected error: %s' % e)
|
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raise fault.serviceUnavailable
|
398 |
|
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def delete(self, request, id): |
400 |
"""Delete an Instance"""
|
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return accepted
|
402 |
|
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def update(self, request, id): |
404 |
raise fault.itemNotFound
|
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|
406 |
|
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class ServerBackupHandler(BaseHandler): |
408 |
""" Backup Schedules are not implemented yet, return notImplemented """
|
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allowed_methods = ('GET', 'POST', 'DELETE') |
410 |
|
411 |
def read(self, request, id): |
412 |
raise fault.notImplemented
|
413 |
|
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def create(self, request, id): |
415 |
raise fault.notImplemented
|
416 |
|
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def delete(self, request, id): |
418 |
raise fault.notImplemented
|
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|
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|
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class ServerMetadataHandler(BaseHandler): |
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"""Handles Metadata of a specific Server
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423 |
|
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the handler Lists, Creates, Updates and Deletes Metadata values
|
425 |
|
426 |
@HTTP methods: POST, DELETE, PUT, GET
|
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@Parameters: POST data with key value pairs
|
428 |
|
429 |
"""
|
430 |
allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
431 |
|
432 |
def read(self, request, id, key=None): |
433 |
"""List metadata of the specific server"""
|
434 |
if key is None: |
435 |
return self.read_allkeys(request, id) |
436 |
else:
|
437 |
return self.read_onekey(request, id, key) |
438 |
|
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def read_allkeys(self, request, id): |
440 |
"""Returns all the key value pairs of the specified server"""
|
441 |
try:
|
442 |
server = VirtualMachine.objects.get(pk=id)
|
443 |
return {
|
444 |
"metadata": {
|
445 |
"values": [
|
446 |
{m.meta_key: m.meta_value} for m in server.virtualmachinemetadata_set.all() |
447 |
] |
448 |
} |
449 |
} |
450 |
except VirtualMachine.DoesNotExist:
|
451 |
raise fault.itemNotFound
|
452 |
except VirtualMachine.MultipleObjectsReturned:
|
453 |
raise fault.serviceUnavailable
|
454 |
except Exception, e: |
455 |
log.exception('Unexpected error: %s' % e)
|
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raise fault.serviceUnavailable
|
457 |
|
458 |
def read_onekey(self, request, id, key): |
459 |
"""Returns the specified metadata key of the specified server"""
|
460 |
try:
|
461 |
server = VirtualMachine.objects.get(pk=id)
|
462 |
return {
|
463 |
"metadata": {
|
464 |
"values": [
|
465 |
{m.meta_key: m.meta_value} for m in server.virtualmachinemetadata_set.filter(meta_key=key) |
466 |
] |
467 |
} |
468 |
} |
469 |
except VirtualMachineMetadata.DoesNotExist:
|
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raise fault.itemNotFound
|
471 |
except VirtualMachine.DoesNotExist:
|
472 |
raise fault.itemNotFound
|
473 |
except VirtualMachine.MultipleObjectsReturned:
|
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raise fault.serviceUnavailable
|
475 |
except Exception, e: |
476 |
log.exception('Unexpected error: %s' % e)
|
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raise fault.serviceUnavailable
|
478 |
|
479 |
def create(self, request, id, key=None): |
480 |
"""Create or Update all metadata for the specified VM"""
|
481 |
if key is not None: |
482 |
log.exception('The POST request should not pass a key in the URL')
|
483 |
raise fault.badRequest
|
484 |
try:
|
485 |
metadata = json.loads(request.raw_post_data)['metadata']
|
486 |
except Exception as e: |
487 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
488 |
raise fault.badRequest
|
489 |
|
490 |
try:
|
491 |
vm = VirtualMachine.objects.get(pk=id)
|
492 |
for x in metadata.keys(): |
493 |
vm_meta, created = vm.virtualmachinemetadata_set.get_or_create(meta_key=x) |
494 |
vm_meta.meta_value = metadata[x] |
495 |
vm_meta.save() |
496 |
return {
|
497 |
"metadata": [{
|
498 |
"meta": {
|
499 |
"key": {m.meta_key: m.meta_value}}} for m in vm.virtualmachinemetadata_set.all()] |
500 |
} |
501 |
except VirtualMachine.DoesNotExist:
|
502 |
raise fault.itemNotFound
|
503 |
except VirtualMachine.MultipleObjectsReturned:
|
504 |
raise fault.serviceUnavailable
|
505 |
except VirtualMachineMetadata.DoesNotExist:
|
506 |
raise fault.itemNotFound
|
507 |
except VirtualMachineMetadata.MultipleObjectsReturned:
|
508 |
raise fault.serviceUnavailable
|
509 |
except Exception, e: |
510 |
log.exception('Unexpected error: %s' % e)
|
511 |
raise fault.serviceUnavailable
|
512 |
|
513 |
def update(self, request, id, key=None): |
514 |
"""Update or Create the specified metadata key for the specified VM"""
|
515 |
if key is None: |
516 |
log.exception('No metadata key specified in URL')
|
517 |
raise fault.badRequest
|
518 |
try:
|
519 |
metadata = json.loads(request.raw_post_data)['meta']
|
520 |
metadata_value = metadata[key] |
521 |
except Exception as e: |
522 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
523 |
raise fault.badRequest
|
524 |
|
525 |
try:
|
526 |
server = VirtualMachine.objects.get(pk=id)
|
527 |
vm_meta, created = server.virtualmachinemetadata_set.get_or_create(meta_key=key) |
528 |
vm_meta.meta_value = metadata_value |
529 |
vm_meta.save() |
530 |
return {"meta": {vm_meta.meta_key: vm_meta.meta_value}} |
531 |
|
532 |
except VirtualMachine.DoesNotExist:
|
533 |
raise fault.itemNotFound
|
534 |
except VirtualMachine.MultipleObjectsReturned:
|
535 |
raise fault.serviceUnavailable
|
536 |
except VirtualMachineMetadata.DoesNotExist:
|
537 |
raise fault.itemNotFound
|
538 |
except VirtualMachineMetadata.MultipleObjectsReturned:
|
539 |
raise fault.serviceUnavailable
|
540 |
except Exception, e: |
541 |
log.exception('Unexpected error: %s' % e)
|
542 |
raise fault.serviceUnavailable
|
543 |
|
544 |
def delete(self, request, id, key=None): |
545 |
"""Delete the specified metadata key"""
|
546 |
if key is None: |
547 |
log.exception('No metadata key specified in URL')
|
548 |
raise fault.badRequest
|
549 |
try:
|
550 |
server = VirtualMachine.objects.get(pk=id)
|
551 |
server.virtualmachinemetadata_set.get(meta_key=key).delete() |
552 |
except VirtualMachineMetadata.DoesNotExist:
|
553 |
raise fault.itemNotFound
|
554 |
except VirtualMachine.DoesNotExist:
|
555 |
raise fault.itemNotFound
|
556 |
except VirtualMachineMetadata.MultipleObjectsReturned:
|
557 |
raise fault.serviceUnavailable
|
558 |
except VirtualMachine.MultipleObjectsReturned:
|
559 |
raise fault.serviceUnavailable
|
560 |
except Exception, e: |
561 |
log.exception('Unexpected error: %s' % e)
|
562 |
raise fault.serviceUnavailable
|
563 |
|
564 |
|
565 |
class FlavorHandler(BaseHandler): |
566 |
"""Handler responsible for Flavors
|
567 |
|
568 |
"""
|
569 |
allowed_methods = ('GET',)
|
570 |
|
571 |
def read(self, request, id=None): |
572 |
"""
|
573 |
List flavors or retrieve one
|
574 |
|
575 |
Returns: OK
|
576 |
Faults: cloudServersFault, serviceUnavailable, unauthorized,
|
577 |
badRequest, itemNotFound
|
578 |
"""
|
579 |
try:
|
580 |
flavors = Flavor.objects.all() |
581 |
flavors = [ {'id': flavor.id, 'name': flavor.name, 'ram': flavor.ram, \ |
582 |
'disk': flavor.disk, 'cpu': flavor.cpu} for flavor in flavors] |
583 |
|
584 |
if id is None: |
585 |
simple = map(lambda v: { |
586 |
"id": v['id'], |
587 |
"name": v['name'], |
588 |
}, flavors) |
589 |
return { "flavors": simple } |
590 |
elif id == "detail": |
591 |
return { "flavors": flavors } |
592 |
else:
|
593 |
flavor = Flavor.objects.get(id=id)
|
594 |
return { "flavor": { |
595 |
'id': flavor.id,
|
596 |
'name': flavor.name,
|
597 |
'ram': flavor.ram,
|
598 |
'disk': flavor.disk,
|
599 |
'cpu': flavor.cpu,
|
600 |
} } |
601 |
|
602 |
except Flavor.DoesNotExist:
|
603 |
raise fault.itemNotFound
|
604 |
except Flavor.MultipleObjectsReturned:
|
605 |
raise fault.serviceUnavailable
|
606 |
except Exception, e: |
607 |
log.exception('Unexpected error: %s' % e)
|
608 |
raise fault.serviceUnavailable
|
609 |
|
610 |
|
611 |
class ImageHandler(BaseHandler): |
612 |
"""Handler responsible for Images
|
613 |
|
614 |
handles the listing, creation and delete of Images.
|
615 |
|
616 |
@HTTP methods: GET, POST
|
617 |
@Parameters: POST data
|
618 |
@Responses: HTTP 202 if successfully create Image or get the Images list, itemNotFound, serviceUnavailable otherwise
|
619 |
|
620 |
"""
|
621 |
|
622 |
|
623 |
allowed_methods = ('GET', 'POST') |
624 |
|
625 |
def read(self, request, id=None): |
626 |
"""
|
627 |
List images or retrieve one
|
628 |
|
629 |
Returns: OK
|
630 |
Faults: cloudServersFault, serviceUnavailable, unauthorized,
|
631 |
badRequest, itemNotFound
|
632 |
"""
|
633 |
try:
|
634 |
images = Image.objects.all() |
635 |
images_list = [ {'created': image.created.isoformat(),
|
636 |
'id': image.id,
|
637 |
'name': image.name,
|
638 |
'updated': image.updated.isoformat(),
|
639 |
'description': image.description,
|
640 |
'status': image.state,
|
641 |
'progress': image.state == 'ACTIVE' and 100 or 0, |
642 |
'size': image.size,
|
643 |
'serverId': image.sourcevm and image.sourcevm.id or "" |
644 |
} for image in images] |
645 |
# Images info is stored in the DB. Ganeti is not aware of this
|
646 |
if id == "detail": |
647 |
return { "images": images_list } |
648 |
elif id is None: |
649 |
return { "images": [ { "id": s['id'], "name": s['name'] } for s in images_list ] } |
650 |
else:
|
651 |
image = images.get(id=id)
|
652 |
return { "image": {'created': image.created.isoformat(), |
653 |
'id': image.id,
|
654 |
'name': image.name,
|
655 |
'updated': image.updated.isoformat(),
|
656 |
'description': image.description,
|
657 |
'status': image.state,
|
658 |
'progress': image.state == 'ACTIVE' and 100 or 0, |
659 |
'size': image.size,
|
660 |
'serverId': image.sourcevm and image.sourcevm.id or "" |
661 |
} } |
662 |
except Image.DoesNotExist:
|
663 |
raise fault.itemNotFound
|
664 |
except Image.MultipleObjectsReturned:
|
665 |
raise fault.serviceUnavailable
|
666 |
except Exception, e: |
667 |
log.exception('Unexpected error: %s' % e)
|
668 |
raise fault.serviceUnavailable
|
669 |
|
670 |
def create(self, request): |
671 |
"""Create a new image"""
|
672 |
return accepted
|
673 |
|
674 |
|
675 |
class ImageMetadataHandler(BaseHandler): |
676 |
"""Handles Metadata of a specific Image
|
677 |
|
678 |
the handler Lists, Creates, Updates and Deletes Metadata values
|
679 |
|
680 |
@HTTP methods: POST, DELETE, PUT, GET
|
681 |
@Parameters: POST data with key value pairs
|
682 |
|
683 |
"""
|
684 |
allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
685 |
|
686 |
def read(self, request, id, key=None): |
687 |
"""List metadata of the specific server"""
|
688 |
if key is None: |
689 |
return self.read_allkeys(request, id) |
690 |
else:
|
691 |
return self.read_onekey(request, id, key) |
692 |
|
693 |
def read_allkeys(self, request, id): |
694 |
"""Returns all the key value pairs of the specified server"""
|
695 |
try:
|
696 |
image = Image.objects.get(pk=id)
|
697 |
return {
|
698 |
"metadata": [{
|
699 |
"meta": {
|
700 |
"key": {m.meta_key: m.meta_value}}} for m in image.imagemetadata_set.all()] |
701 |
} |
702 |
except Image.DoesNotExist:
|
703 |
raise fault.itemNotFound
|
704 |
except Image.MultipleObjectsReturned:
|
705 |
raise fault.serviceUnavailable
|
706 |
except Exception, e: |
707 |
log.exception('Unexpected error: %s' % e)
|
708 |
raise fault.serviceUnavailable
|
709 |
|
710 |
def read_onekey(self, request, id, key): |
711 |
"""Returns the specified metadata key of the specified server"""
|
712 |
try:
|
713 |
image = Image.objects.get(pk=id)
|
714 |
return {
|
715 |
"metadata": {
|
716 |
"values": [
|
717 |
{m.meta_key: m.meta_value} for m in image.imagemetadata_set.filter(meta_key=key) |
718 |
] |
719 |
} |
720 |
} |
721 |
except ImageMetadata.DoesNotExist:
|
722 |
raise fault.itemNotFound
|
723 |
except Image.DoesNotExist:
|
724 |
raise fault.itemNotFound
|
725 |
except Image.MultipleObjectsReturned:
|
726 |
raise fault.serviceUnavailable
|
727 |
except Exception, e: |
728 |
log.exception('Unexpected error: %s' % e)
|
729 |
raise fault.serviceUnavailable
|
730 |
|
731 |
def create(self, request, id, key=None): |
732 |
"""Create or Update all metadata for the specified Image"""
|
733 |
if key is not None: |
734 |
log.exception('The POST request should not pass a key in the URL')
|
735 |
raise fault.badRequest
|
736 |
try:
|
737 |
metadata = json.loads(request.raw_post_data)['metadata']
|
738 |
except Exception as e: |
739 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
740 |
raise fault.badRequest
|
741 |
|
742 |
try:
|
743 |
image = Image.objects.get(pk=id)
|
744 |
for x in metadata.keys(): |
745 |
img_meta, created = image.imagemetadata_set.get_or_create(meta_key=x) |
746 |
img_meta.meta_value = metadata[x] |
747 |
img_meta.save() |
748 |
return {
|
749 |
"metadata": [{
|
750 |
"meta": {
|
751 |
"key": {m.meta_key: m.meta_value}}} for m in image.imagemetadata_set.all()] |
752 |
} |
753 |
except Image.DoesNotExist:
|
754 |
raise fault.itemNotFound
|
755 |
except Image.MultipleObjectsReturned:
|
756 |
raise fault.serviceUnavailable
|
757 |
except ImageMetadata.DoesNotExist:
|
758 |
raise fault.itemNotFound
|
759 |
except ImageMetadata.MultipleObjectsReturned:
|
760 |
raise fault.serviceUnavailable
|
761 |
except Exception, e: |
762 |
log.exception('Unexpected error: %s' % e)
|
763 |
raise fault.serviceUnavailable
|
764 |
|
765 |
def update(self, request, id, key=None): |
766 |
"""Update or Create the specified metadata key for the specified Image"""
|
767 |
if key is None: |
768 |
log.exception('No metadata key specified in URL')
|
769 |
raise fault.badRequest
|
770 |
try:
|
771 |
metadata = json.loads(request.raw_post_data)['meta']
|
772 |
metadata_value = metadata[key] |
773 |
except Exception as e: |
774 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
775 |
raise fault.badRequest
|
776 |
|
777 |
try:
|
778 |
image = Image.objects.get(pk=id)
|
779 |
img_meta, created = image.imagemetadata_set.get_or_create(meta_key=key) |
780 |
img_meta.meta_value = metadata_value |
781 |
img_meta.save() |
782 |
return {"meta": {img_meta.meta_key: img_meta.meta_value}} |
783 |
|
784 |
except Image.DoesNotExist:
|
785 |
raise fault.itemNotFound
|
786 |
except Image.MultipleObjectsReturned:
|
787 |
raise fault.serviceUnavailable
|
788 |
except ImageMetadata.DoesNotExist:
|
789 |
raise fault.itemNotFound
|
790 |
except ImageMetadata.MultipleObjectsReturned:
|
791 |
raise fault.serviceUnavailable
|
792 |
except Exception, e: |
793 |
log.exception('Unexpected error: %s' % e)
|
794 |
raise fault.serviceUnavailable
|
795 |
|
796 |
def delete(self, request, id, key=None): |
797 |
"""Delete the specified metadata key"""
|
798 |
if key is None: |
799 |
log.exception('No metadata key specified in URL')
|
800 |
raise fault.badRequest
|
801 |
try:
|
802 |
image = Image.objects.get(pk=id)
|
803 |
image.imagemetadata_set.get(meta_key=key).delete() |
804 |
except ImageMetadata.DoesNotExist:
|
805 |
raise fault.itemNotFound
|
806 |
except Image.DoesNotExist:
|
807 |
raise fault.itemNotFound
|
808 |
except ImageMetadata.MultipleObjectsReturned:
|
809 |
raise fault.serviceUnavailable
|
810 |
except Image.MultipleObjectsReturned:
|
811 |
raise fault.serviceUnavailable
|
812 |
except Exception, e: |
813 |
log.exception('Unexpected error: %s' % e)
|
814 |
raise fault.serviceUnavailable
|
815 |
|
816 |
|
817 |
class SharedIPGroupHandler(BaseHandler): |
818 |
allowed_methods = ('GET', 'POST', 'DELETE') |
819 |
|
820 |
def read(self, request, id=None): |
821 |
"""List Shared IP Groups"""
|
822 |
if id is None: |
823 |
return {}
|
824 |
elif id == "detail": |
825 |
return {}
|
826 |
else:
|
827 |
raise fault.itemNotFound
|
828 |
|
829 |
def create(self, request, id): |
830 |
"""Creates a new Shared IP Group"""
|
831 |
return created
|
832 |
|
833 |
def delete(self, request, id): |
834 |
"""Deletes a Shared IP Group"""
|
835 |
raise fault.itemNotFound
|
836 |
|
837 |
|
838 |
class VirtualMachineGroupHandler(BaseHandler): |
839 |
"""Handler responsible for Virtual Machine Groups
|
840 |
|
841 |
creates, lists, deletes virtual machine groups
|
842 |
|
843 |
@HTTP methods: GET, POST, DELETE
|
844 |
@Parameters: POST data
|
845 |
@Responses: HTTP 202 if successfully get the Groups list, itemNotFound, serviceUnavailable otherwise
|
846 |
|
847 |
"""
|
848 |
|
849 |
allowed_methods = ('GET', 'POST', 'DELETE') |
850 |
|
851 |
def read(self, request, id=None): |
852 |
"""List Groups"""
|
853 |
try:
|
854 |
vmgroups = VirtualMachineGroup.objects.all() |
855 |
vmgroups_list = [ {'id': vmgroup.id, \
|
856 |
'name': vmgroup.name, \
|
857 |
'server_id': [machine.id for machine in vmgroup.machines.all()] \ |
858 |
} for vmgroup in vmgroups] |
859 |
# Group info is stored in the DB. Ganeti is not aware of this
|
860 |
if id == "detail": |
861 |
return { "groups": vmgroups_list } |
862 |
elif id is None: |
863 |
return { "groups": [ { "id": s['id'], "name": s['name'] } for s in vmgroups_list ] } |
864 |
else:
|
865 |
vmgroup = vmgroups.get(id=id)
|
866 |
|
867 |
return { "group": {'id': vmgroup.id, \ |
868 |
'name': vmgroup.name, \
|
869 |
'server_id': [machine.id for machine in vmgroup.machines.all()] \ |
870 |
} } |
871 |
|
872 |
|
873 |
except VirtualMachineGroup.DoesNotExist:
|
874 |
raise fault.itemNotFound
|
875 |
except VirtualMachineGroup.MultipleObjectsReturned:
|
876 |
raise fault.serviceUnavailable
|
877 |
except Exception, e: |
878 |
log.exception('Unexpected error: %s' % e)
|
879 |
raise fault.serviceUnavailable
|
880 |
|
881 |
|
882 |
|
883 |
def create(self, request, id): |
884 |
"""Creates a Group"""
|
885 |
return created
|
886 |
|
887 |
def delete(self, request, id): |
888 |
"""Deletes a Group"""
|
889 |
raise fault.itemNotFound
|
890 |
|
891 |
|
892 |
class LimitHandler(BaseHandler): |
893 |
allowed_methods = ('GET',)
|
894 |
|
895 |
# XXX: hookup with @throttle
|
896 |
|
897 |
rate = [ |
898 |
{ |
899 |
"verb" : "POST", |
900 |
"URI" : "*", |
901 |
"regex" : ".*", |
902 |
"value" : 10, |
903 |
"remaining" : 2, |
904 |
"unit" : "MINUTE", |
905 |
"resetTime" : 1244425439 |
906 |
}, |
907 |
{ |
908 |
"verb" : "POST", |
909 |
"URI" : "*/servers", |
910 |
"regex" : "^/servers", |
911 |
"value" : 25, |
912 |
"remaining" : 24, |
913 |
"unit" : "DAY", |
914 |
"resetTime" : 1244511839 |
915 |
}, |
916 |
{ |
917 |
"verb" : "PUT", |
918 |
"URI" : "*", |
919 |
"regex" : ".*", |
920 |
"value" : 10, |
921 |
"remaining" : 2, |
922 |
"unit" : "MINUTE", |
923 |
"resetTime" : 1244425439 |
924 |
}, |
925 |
{ |
926 |
"verb" : "GET", |
927 |
"URI" : "*", |
928 |
"regex" : ".*", |
929 |
"value" : 3, |
930 |
"remaining" : 3, |
931 |
"unit" : "MINUTE", |
932 |
"resetTime" : 1244425439 |
933 |
}, |
934 |
{ |
935 |
"verb" : "DELETE", |
936 |
"URI" : "*", |
937 |
"regex" : ".*", |
938 |
"value" : 100, |
939 |
"remaining" : 100, |
940 |
"unit" : "MINUTE", |
941 |
"resetTime" : 1244425439 |
942 |
} |
943 |
] |
944 |
|
945 |
absolute = { |
946 |
"maxTotalRAMSize" : 51200, |
947 |
"maxIPGroups" : 50, |
948 |
"maxIPGroupMembers" : 25 |
949 |
} |
950 |
|
951 |
def read(self, request): |
952 |
return { "limits": { |
953 |
"rate": self.rate, |
954 |
"absolute": self.absolute, |
955 |
} |
956 |
} |
957 |
|
958 |
|
959 |
class DiskHandler(BaseHandler): |
960 |
allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
961 |
|
962 |
def read(self, request, id=None): |
963 |
"""List Disks"""
|
964 |
if id is None: |
965 |
return self.read_all(request) |
966 |
elif id == "detail": |
967 |
return self.read_all(request, detail=True) |
968 |
else:
|
969 |
return self.read_one(request, id) |
970 |
|
971 |
def read_one(self, request, id): |
972 |
"""List one Disk with the specified id with all details"""
|
973 |
# FIXME Get detailed info from the DB
|
974 |
# for the Disk with the specified id
|
975 |
try:
|
976 |
disk = Disk.objects.get(pk=id)
|
977 |
disk_details = { |
978 |
"id" : disk.id,
|
979 |
"name" : disk.name,
|
980 |
"size" : disk.size,
|
981 |
"created" : disk.created,
|
982 |
"serverId" : disk.vm.id
|
983 |
} |
984 |
return { "disks" : disk_details } |
985 |
except:
|
986 |
raise fault.itemNotFound
|
987 |
|
988 |
@paginator
|
989 |
def read_all(self, request, detail=False): |
990 |
"""List all Disks. If -detail- is set list them with all details"""
|
991 |
if not detail: |
992 |
disks = Disk.objects.filter(owner=SynnefoUser.objects.all()[0])
|
993 |
return { "disks": [ { "id": disk.id, "name": disk.name } for disk in disks ] } |
994 |
else:
|
995 |
disks = Disk.objects.filter(owner=SynnefoUser.objects.all()[0])
|
996 |
disks_details = [ { |
997 |
"id" : disk.id,
|
998 |
"name" : disk.name,
|
999 |
"size" : disk.size,
|
1000 |
"created" : disk.created,
|
1001 |
"serverId" : disk.vm.id,
|
1002 |
} for disk in disks ] |
1003 |
return { "disks": disks_details } |
1004 |
|
1005 |
def create(self, request): |
1006 |
"""Create a new Disk"""
|
1007 |
# FIXME Create a partial DB entry,
|
1008 |
# then call the backend for actual creation
|
1009 |
pass
|
1010 |
|
1011 |
def update(self, request, id): |
1012 |
"""Rename the Disk with the specified id"""
|
1013 |
# FIXME Change the Disk's name in the DB
|
1014 |
pass
|
1015 |
|
1016 |
def delete(self, request, id): |
1017 |
"""Destroy the Disk with the specified id"""
|
1018 |
# Call the backend for actual destruction
|
1019 |
pass
|