root / api / handlers.py @ b9a77976
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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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backend_prefix_id = settings.BACKEND_PREFIX_ID |
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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 200 if successfully call rapi, 304 if not modified, itemNotFound or 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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except Exception, e: |
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raise fault.badRequest
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try:
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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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|
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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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|
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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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|
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|
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class ServerAddressHandler(BaseHandler): |
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"""Handler responsible for Server Addresses
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|
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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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"""
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allowed_methods = ('GET',)
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|
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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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|
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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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|
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class ServerActionHandler(BaseHandler): |
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"""Handler responsible for Server Actions
|
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|
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handles Reboot, Shutdown and Start actions.
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|
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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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"""
|
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|
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allowed_methods = ('POST', 'DELETE', 'PUT') |
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|
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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' |
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|
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if not action: |
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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) |
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|
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if reboot_request:
|
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rapi.RebootInstance(vm.backend_id) |
| 388 |
elif shutdown_request:
|
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rapi.ShutdownInstance(vm.backend_id) |
| 390 |
elif start_request:
|
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rapi.StartupInstance(vm.backend_id) |
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return accepted
|
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except VirtualMachine.DoesNotExist:
|
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raise fault.itemNotFound
|
| 395 |
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: |
| 400 |
log.exception('Unexpected error: %s' % e)
|
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raise fault.serviceUnavailable
|
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|
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def delete(self, request, id): |
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"""Delete an Instance"""
|
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return accepted
|
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|
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def update(self, request, id): |
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raise fault.itemNotFound
|
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|
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|
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class ServerBackupHandler(BaseHandler): |
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""" Backup Schedules are not implemented yet, return notImplemented """
|
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allowed_methods = ('GET', 'POST', 'DELETE') |
| 414 |
|
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def read(self, request, id): |
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raise fault.notImplemented
|
| 417 |
|
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def create(self, request, id): |
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raise fault.notImplemented
|
| 420 |
|
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def delete(self, request, id): |
| 422 |
raise fault.notImplemented
|
| 423 |
|
| 424 |
|
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class ServerMetadataHandler(BaseHandler): |
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"""Handles Metadata of a specific Server
|
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|
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the handler Lists, Creates, Updates and Deletes Metadata values
|
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|
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@HTTP methods: POST, DELETE, PUT, GET
|
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@Parameters: POST data with key value pairs
|
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|
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"""
|
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allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
| 435 |
|
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def read(self, request, id, key=None): |
| 437 |
"""List metadata of the specific server"""
|
| 438 |
if key is None: |
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return self.read_allkeys(request, id) |
| 440 |
else:
|
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return self.read_onekey(request, id, key) |
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|
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def read_allkeys(self, request, id): |
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"""Returns all the key value pairs of the specified server"""
|
| 445 |
try:
|
| 446 |
server = VirtualMachine.objects.get(pk=id)
|
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return {
|
| 448 |
"metadata": {
|
| 449 |
"values": [
|
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{m.meta_key: m.meta_value} for m in server.virtualmachinemetadata_set.all()
|
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] |
| 452 |
} |
| 453 |
} |
| 454 |
except VirtualMachine.DoesNotExist:
|
| 455 |
raise fault.itemNotFound
|
| 456 |
except VirtualMachine.MultipleObjectsReturned:
|
| 457 |
raise fault.serviceUnavailable
|
| 458 |
except Exception, e: |
| 459 |
log.exception('Unexpected error: %s' % e)
|
| 460 |
raise fault.serviceUnavailable
|
| 461 |
|
| 462 |
def read_onekey(self, request, id, key): |
| 463 |
"""Returns the specified metadata key of the specified server"""
|
| 464 |
try:
|
| 465 |
server = VirtualMachine.objects.get(pk=id)
|
| 466 |
return {
|
| 467 |
"metadata": {
|
| 468 |
"values": [
|
| 469 |
{m.meta_key: m.meta_value} for m in server.virtualmachinemetadata_set.filter(meta_key=key)
|
| 470 |
] |
| 471 |
} |
| 472 |
} |
| 473 |
except VirtualMachineMetadata.DoesNotExist:
|
| 474 |
raise fault.itemNotFound
|
| 475 |
except VirtualMachine.DoesNotExist:
|
| 476 |
raise fault.itemNotFound
|
| 477 |
except VirtualMachine.MultipleObjectsReturned:
|
| 478 |
raise fault.serviceUnavailable
|
| 479 |
except Exception, e: |
| 480 |
log.exception('Unexpected error: %s' % e)
|
| 481 |
raise fault.serviceUnavailable
|
| 482 |
|
| 483 |
def create(self, request, id, key=None): |
| 484 |
"""Create or Update all metadata for the specified VM"""
|
| 485 |
if key is not None: |
| 486 |
log.exception('The POST request should not pass a key in the URL')
|
| 487 |
raise fault.badRequest
|
| 488 |
try:
|
| 489 |
metadata = json.loads(request.raw_post_data)['metadata']
|
| 490 |
except Exception as e: |
| 491 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
| 492 |
raise fault.badRequest
|
| 493 |
|
| 494 |
try:
|
| 495 |
vm = VirtualMachine.objects.get(pk=id)
|
| 496 |
for x in metadata.keys(): |
| 497 |
vm_meta, created = vm.virtualmachinemetadata_set.get_or_create(meta_key=x) |
| 498 |
vm_meta.meta_value = metadata[x] |
| 499 |
vm_meta.save() |
| 500 |
return {
|
| 501 |
"metadata": [{
|
| 502 |
"meta": {
|
| 503 |
"key": {m.meta_key: m.meta_value}}} for m in vm.virtualmachinemetadata_set.all()] |
| 504 |
} |
| 505 |
except VirtualMachine.DoesNotExist:
|
| 506 |
raise fault.itemNotFound
|
| 507 |
except VirtualMachine.MultipleObjectsReturned:
|
| 508 |
raise fault.serviceUnavailable
|
| 509 |
except VirtualMachineMetadata.DoesNotExist:
|
| 510 |
raise fault.itemNotFound
|
| 511 |
except VirtualMachineMetadata.MultipleObjectsReturned:
|
| 512 |
raise fault.serviceUnavailable
|
| 513 |
except Exception, e: |
| 514 |
log.exception('Unexpected error: %s' % e)
|
| 515 |
raise fault.serviceUnavailable
|
| 516 |
|
| 517 |
def update(self, request, id, key=None): |
| 518 |
"""Update or Create the specified metadata key for the specified VM"""
|
| 519 |
if key is None: |
| 520 |
log.exception('No metadata key specified in URL')
|
| 521 |
raise fault.badRequest
|
| 522 |
try:
|
| 523 |
metadata = json.loads(request.raw_post_data)['meta']
|
| 524 |
metadata_value = metadata[key] |
| 525 |
except Exception as e: |
| 526 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
| 527 |
raise fault.badRequest
|
| 528 |
|
| 529 |
try:
|
| 530 |
server = VirtualMachine.objects.get(pk=id)
|
| 531 |
vm_meta, created = server.virtualmachinemetadata_set.get_or_create(meta_key=key) |
| 532 |
vm_meta.meta_value = metadata_value |
| 533 |
vm_meta.save() |
| 534 |
return {"meta": {vm_meta.meta_key: vm_meta.meta_value}} |
| 535 |
|
| 536 |
except VirtualMachine.DoesNotExist:
|
| 537 |
raise fault.itemNotFound
|
| 538 |
except VirtualMachine.MultipleObjectsReturned:
|
| 539 |
raise fault.serviceUnavailable
|
| 540 |
except VirtualMachineMetadata.DoesNotExist:
|
| 541 |
raise fault.itemNotFound
|
| 542 |
except VirtualMachineMetadata.MultipleObjectsReturned:
|
| 543 |
raise fault.serviceUnavailable
|
| 544 |
except Exception, e: |
| 545 |
log.exception('Unexpected error: %s' % e)
|
| 546 |
raise fault.serviceUnavailable
|
| 547 |
|
| 548 |
def delete(self, request, id, key=None): |
| 549 |
"""Delete the specified metadata key"""
|
| 550 |
if key is None: |
| 551 |
log.exception('No metadata key specified in URL')
|
| 552 |
raise fault.badRequest
|
| 553 |
try:
|
| 554 |
server = VirtualMachine.objects.get(pk=id)
|
| 555 |
server.virtualmachinemetadata_set.get(meta_key=key).delete() |
| 556 |
except VirtualMachineMetadata.DoesNotExist:
|
| 557 |
raise fault.itemNotFound
|
| 558 |
except VirtualMachine.DoesNotExist:
|
| 559 |
raise fault.itemNotFound
|
| 560 |
except VirtualMachineMetadata.MultipleObjectsReturned:
|
| 561 |
raise fault.serviceUnavailable
|
| 562 |
except VirtualMachine.MultipleObjectsReturned:
|
| 563 |
raise fault.serviceUnavailable
|
| 564 |
except Exception, e: |
| 565 |
log.exception('Unexpected error: %s' % e)
|
| 566 |
raise fault.serviceUnavailable
|
| 567 |
|
| 568 |
|
| 569 |
class FlavorHandler(BaseHandler): |
| 570 |
"""Handler responsible for Flavors
|
| 571 |
|
| 572 |
"""
|
| 573 |
allowed_methods = ('GET',)
|
| 574 |
|
| 575 |
def read(self, request, id=None): |
| 576 |
"""
|
| 577 |
List flavors or retrieve one
|
| 578 |
|
| 579 |
Returns: OK
|
| 580 |
Faults: cloudServersFault, serviceUnavailable, unauthorized,
|
| 581 |
badRequest, itemNotFound
|
| 582 |
"""
|
| 583 |
try:
|
| 584 |
flavors = Flavor.objects.all() |
| 585 |
flavors = [ {'id': flavor.id, 'name': flavor.name, 'ram': flavor.ram, \
|
| 586 |
'disk': flavor.disk, 'cpu': flavor.cpu} for flavor in flavors] |
| 587 |
|
| 588 |
if id is None: |
| 589 |
simple = map(lambda v: { |
| 590 |
"id": v['id'], |
| 591 |
"name": v['name'], |
| 592 |
}, flavors) |
| 593 |
return { "flavors": simple } |
| 594 |
elif id == "detail": |
| 595 |
return { "flavors": flavors } |
| 596 |
else:
|
| 597 |
flavor = Flavor.objects.get(id=id)
|
| 598 |
return { "flavor": { |
| 599 |
'id': flavor.id,
|
| 600 |
'name': flavor.name,
|
| 601 |
'ram': flavor.ram,
|
| 602 |
'disk': flavor.disk,
|
| 603 |
'cpu': flavor.cpu,
|
| 604 |
} } |
| 605 |
|
| 606 |
except Flavor.DoesNotExist:
|
| 607 |
raise fault.itemNotFound
|
| 608 |
except Flavor.MultipleObjectsReturned:
|
| 609 |
raise fault.serviceUnavailable
|
| 610 |
except Exception, e: |
| 611 |
log.exception('Unexpected error: %s' % e)
|
| 612 |
raise fault.serviceUnavailable
|
| 613 |
|
| 614 |
|
| 615 |
class ImageHandler(BaseHandler): |
| 616 |
"""Handler responsible for Images
|
| 617 |
|
| 618 |
handles the listing, creation and delete of Images.
|
| 619 |
|
| 620 |
@HTTP methods: GET, POST
|
| 621 |
@Parameters: POST data
|
| 622 |
@Responses: HTTP 202 if successfully create Image or get the Images list, itemNotFound, serviceUnavailable otherwise
|
| 623 |
|
| 624 |
"""
|
| 625 |
|
| 626 |
|
| 627 |
allowed_methods = ('GET', 'POST') |
| 628 |
|
| 629 |
def read(self, request, id=None): |
| 630 |
"""
|
| 631 |
List images or retrieve one
|
| 632 |
|
| 633 |
Returns: OK
|
| 634 |
Faults: cloudServersFault, serviceUnavailable, unauthorized,
|
| 635 |
badRequest, itemNotFound
|
| 636 |
"""
|
| 637 |
try:
|
| 638 |
images = Image.objects.all() |
| 639 |
images_list = [ {'created': image.created.isoformat(),
|
| 640 |
'id': image.id,
|
| 641 |
'name': image.name,
|
| 642 |
'updated': image.updated.isoformat(),
|
| 643 |
'description': image.description,
|
| 644 |
'status': image.state,
|
| 645 |
'progress': image.state == 'ACTIVE' and 100 or 0, |
| 646 |
'size': image.size,
|
| 647 |
'serverId': image.sourcevm and image.sourcevm.id or "" |
| 648 |
} for image in images] |
| 649 |
# Images info is stored in the DB. Ganeti is not aware of this
|
| 650 |
if id == "detail": |
| 651 |
return { "images": images_list } |
| 652 |
elif id is None: |
| 653 |
return { "images": [ { "id": s['id'], "name": s['name'] } for s in images_list ] } |
| 654 |
else:
|
| 655 |
image = images.get(id=id)
|
| 656 |
return { "image": {'created': image.created.isoformat(), |
| 657 |
'id': image.id,
|
| 658 |
'name': image.name,
|
| 659 |
'updated': image.updated.isoformat(),
|
| 660 |
'description': image.description,
|
| 661 |
'status': image.state,
|
| 662 |
'progress': image.state == 'ACTIVE' and 100 or 0, |
| 663 |
'size': image.size,
|
| 664 |
'serverId': image.sourcevm and image.sourcevm.id or "" |
| 665 |
} } |
| 666 |
except Image.DoesNotExist:
|
| 667 |
raise fault.itemNotFound
|
| 668 |
except Image.MultipleObjectsReturned:
|
| 669 |
raise fault.serviceUnavailable
|
| 670 |
except Exception, e: |
| 671 |
log.exception('Unexpected error: %s' % e)
|
| 672 |
raise fault.serviceUnavailable
|
| 673 |
|
| 674 |
def create(self, request): |
| 675 |
"""Create a new image"""
|
| 676 |
return accepted
|
| 677 |
|
| 678 |
|
| 679 |
class ImageMetadataHandler(BaseHandler): |
| 680 |
"""Handles Metadata of a specific Image
|
| 681 |
|
| 682 |
the handler Lists, Creates, Updates and Deletes Metadata values
|
| 683 |
|
| 684 |
@HTTP methods: POST, DELETE, PUT, GET
|
| 685 |
@Parameters: POST data with key value pairs
|
| 686 |
|
| 687 |
"""
|
| 688 |
allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
| 689 |
|
| 690 |
def read(self, request, id, key=None): |
| 691 |
"""List metadata of the specific server"""
|
| 692 |
if key is None: |
| 693 |
return self.read_allkeys(request, id) |
| 694 |
else:
|
| 695 |
return self.read_onekey(request, id, key) |
| 696 |
|
| 697 |
def read_allkeys(self, request, id): |
| 698 |
"""Returns all the key value pairs of the specified server"""
|
| 699 |
try:
|
| 700 |
image = Image.objects.get(pk=id)
|
| 701 |
return {
|
| 702 |
"metadata": [{
|
| 703 |
"meta": {
|
| 704 |
"key": {m.meta_key: m.meta_value}}} for m in image.imagemetadata_set.all()] |
| 705 |
} |
| 706 |
except Image.DoesNotExist:
|
| 707 |
raise fault.itemNotFound
|
| 708 |
except Image.MultipleObjectsReturned:
|
| 709 |
raise fault.serviceUnavailable
|
| 710 |
except Exception, e: |
| 711 |
log.exception('Unexpected error: %s' % e)
|
| 712 |
raise fault.serviceUnavailable
|
| 713 |
|
| 714 |
def read_onekey(self, request, id, key): |
| 715 |
"""Returns the specified metadata key of the specified server"""
|
| 716 |
try:
|
| 717 |
image = Image.objects.get(pk=id)
|
| 718 |
return {
|
| 719 |
"metadata": {
|
| 720 |
"values": [
|
| 721 |
{m.meta_key: m.meta_value} for m in image.imagemetadata_set.filter(meta_key=key)
|
| 722 |
] |
| 723 |
} |
| 724 |
} |
| 725 |
except ImageMetadata.DoesNotExist:
|
| 726 |
raise fault.itemNotFound
|
| 727 |
except Image.DoesNotExist:
|
| 728 |
raise fault.itemNotFound
|
| 729 |
except Image.MultipleObjectsReturned:
|
| 730 |
raise fault.serviceUnavailable
|
| 731 |
except Exception, e: |
| 732 |
log.exception('Unexpected error: %s' % e)
|
| 733 |
raise fault.serviceUnavailable
|
| 734 |
|
| 735 |
def create(self, request, id, key=None): |
| 736 |
"""Create or Update all metadata for the specified Image"""
|
| 737 |
if key is not None: |
| 738 |
log.exception('The POST request should not pass a key in the URL')
|
| 739 |
raise fault.badRequest
|
| 740 |
try:
|
| 741 |
metadata = json.loads(request.raw_post_data)['metadata']
|
| 742 |
except Exception as e: |
| 743 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
| 744 |
raise fault.badRequest
|
| 745 |
|
| 746 |
try:
|
| 747 |
image = Image.objects.get(pk=id)
|
| 748 |
for x in metadata.keys(): |
| 749 |
img_meta, created = image.imagemetadata_set.get_or_create(meta_key=x) |
| 750 |
img_meta.meta_value = metadata[x] |
| 751 |
img_meta.save() |
| 752 |
return {
|
| 753 |
"metadata": [{
|
| 754 |
"meta": {
|
| 755 |
"key": {m.meta_key: m.meta_value}}} for m in image.imagemetadata_set.all()] |
| 756 |
} |
| 757 |
except Image.DoesNotExist:
|
| 758 |
raise fault.itemNotFound
|
| 759 |
except Image.MultipleObjectsReturned:
|
| 760 |
raise fault.serviceUnavailable
|
| 761 |
except ImageMetadata.DoesNotExist:
|
| 762 |
raise fault.itemNotFound
|
| 763 |
except ImageMetadata.MultipleObjectsReturned:
|
| 764 |
raise fault.serviceUnavailable
|
| 765 |
except Exception, e: |
| 766 |
log.exception('Unexpected error: %s' % e)
|
| 767 |
raise fault.serviceUnavailable
|
| 768 |
|
| 769 |
def update(self, request, id, key=None): |
| 770 |
"""Update or Create the specified metadata key for the specified Image"""
|
| 771 |
if key is None: |
| 772 |
log.exception('No metadata key specified in URL')
|
| 773 |
raise fault.badRequest
|
| 774 |
try:
|
| 775 |
metadata = json.loads(request.raw_post_data)['meta']
|
| 776 |
metadata_value = metadata[key] |
| 777 |
except Exception as e: |
| 778 |
log.exception('Malformed create request: %s - %s' % (e, request.raw_post_data))
|
| 779 |
raise fault.badRequest
|
| 780 |
|
| 781 |
try:
|
| 782 |
image = Image.objects.get(pk=id)
|
| 783 |
img_meta, created = image.imagemetadata_set.get_or_create(meta_key=key) |
| 784 |
img_meta.meta_value = metadata_value |
| 785 |
img_meta.save() |
| 786 |
return {"meta": {img_meta.meta_key: img_meta.meta_value}} |
| 787 |
|
| 788 |
except Image.DoesNotExist:
|
| 789 |
raise fault.itemNotFound
|
| 790 |
except Image.MultipleObjectsReturned:
|
| 791 |
raise fault.serviceUnavailable
|
| 792 |
except ImageMetadata.DoesNotExist:
|
| 793 |
raise fault.itemNotFound
|
| 794 |
except ImageMetadata.MultipleObjectsReturned:
|
| 795 |
raise fault.serviceUnavailable
|
| 796 |
except Exception, e: |
| 797 |
log.exception('Unexpected error: %s' % e)
|
| 798 |
raise fault.serviceUnavailable
|
| 799 |
|
| 800 |
def delete(self, request, id, key=None): |
| 801 |
"""Delete the specified metadata key"""
|
| 802 |
if key is None: |
| 803 |
log.exception('No metadata key specified in URL')
|
| 804 |
raise fault.badRequest
|
| 805 |
try:
|
| 806 |
image = Image.objects.get(pk=id)
|
| 807 |
image.imagemetadata_set.get(meta_key=key).delete() |
| 808 |
except ImageMetadata.DoesNotExist:
|
| 809 |
raise fault.itemNotFound
|
| 810 |
except Image.DoesNotExist:
|
| 811 |
raise fault.itemNotFound
|
| 812 |
except ImageMetadata.MultipleObjectsReturned:
|
| 813 |
raise fault.serviceUnavailable
|
| 814 |
except Image.MultipleObjectsReturned:
|
| 815 |
raise fault.serviceUnavailable
|
| 816 |
except Exception, e: |
| 817 |
log.exception('Unexpected error: %s' % e)
|
| 818 |
raise fault.serviceUnavailable
|
| 819 |
|
| 820 |
|
| 821 |
class SharedIPGroupHandler(BaseHandler): |
| 822 |
allowed_methods = ('GET', 'POST', 'DELETE') |
| 823 |
|
| 824 |
def read(self, request, id=None): |
| 825 |
"""List Shared IP Groups"""
|
| 826 |
if id is None: |
| 827 |
return {}
|
| 828 |
elif id == "detail": |
| 829 |
return {}
|
| 830 |
else:
|
| 831 |
raise fault.itemNotFound
|
| 832 |
|
| 833 |
def create(self, request, id): |
| 834 |
"""Creates a new Shared IP Group"""
|
| 835 |
return created
|
| 836 |
|
| 837 |
def delete(self, request, id): |
| 838 |
"""Deletes a Shared IP Group"""
|
| 839 |
raise fault.itemNotFound
|
| 840 |
|
| 841 |
|
| 842 |
class VirtualMachineGroupHandler(BaseHandler): |
| 843 |
"""Handler responsible for Virtual Machine Groups
|
| 844 |
|
| 845 |
creates, lists, deletes virtual machine groups
|
| 846 |
|
| 847 |
@HTTP methods: GET, POST, DELETE
|
| 848 |
@Parameters: POST data
|
| 849 |
@Responses: HTTP 202 if successfully get the Groups list, itemNotFound, serviceUnavailable otherwise
|
| 850 |
|
| 851 |
"""
|
| 852 |
|
| 853 |
allowed_methods = ('GET', 'POST', 'DELETE') |
| 854 |
|
| 855 |
def read(self, request, id=None): |
| 856 |
"""List Groups"""
|
| 857 |
try:
|
| 858 |
vmgroups = VirtualMachineGroup.objects.all() |
| 859 |
vmgroups_list = [ {'id': vmgroup.id, \
|
| 860 |
'name': vmgroup.name, \
|
| 861 |
'server_id': [machine.id for machine in vmgroup.machines.all()] \ |
| 862 |
} for vmgroup in vmgroups] |
| 863 |
# Group info is stored in the DB. Ganeti is not aware of this
|
| 864 |
if id == "detail": |
| 865 |
return { "groups": vmgroups_list } |
| 866 |
elif id is None: |
| 867 |
return { "groups": [ { "id": s['id'], "name": s['name'] } for s in vmgroups_list ] } |
| 868 |
else:
|
| 869 |
vmgroup = vmgroups.get(id=id)
|
| 870 |
|
| 871 |
return { "group": {'id': vmgroup.id, \ |
| 872 |
'name': vmgroup.name, \
|
| 873 |
'server_id': [machine.id for machine in vmgroup.machines.all()] \ |
| 874 |
} } |
| 875 |
|
| 876 |
|
| 877 |
except VirtualMachineGroup.DoesNotExist:
|
| 878 |
raise fault.itemNotFound
|
| 879 |
except VirtualMachineGroup.MultipleObjectsReturned:
|
| 880 |
raise fault.serviceUnavailable
|
| 881 |
except Exception, e: |
| 882 |
log.exception('Unexpected error: %s' % e)
|
| 883 |
raise fault.serviceUnavailable
|
| 884 |
|
| 885 |
|
| 886 |
|
| 887 |
def create(self, request, id): |
| 888 |
"""Creates a Group"""
|
| 889 |
return created
|
| 890 |
|
| 891 |
def delete(self, request, id): |
| 892 |
"""Deletes a Group"""
|
| 893 |
raise fault.itemNotFound
|
| 894 |
|
| 895 |
|
| 896 |
class LimitHandler(BaseHandler): |
| 897 |
allowed_methods = ('GET',)
|
| 898 |
|
| 899 |
# XXX: hookup with @throttle
|
| 900 |
|
| 901 |
rate = [ |
| 902 |
{
|
| 903 |
"verb" : "POST", |
| 904 |
"URI" : "*", |
| 905 |
"regex" : ".*", |
| 906 |
"value" : 10, |
| 907 |
"remaining" : 2, |
| 908 |
"unit" : "MINUTE", |
| 909 |
"resetTime" : 1244425439 |
| 910 |
}, |
| 911 |
{
|
| 912 |
"verb" : "POST", |
| 913 |
"URI" : "*/servers", |
| 914 |
"regex" : "^/servers", |
| 915 |
"value" : 25, |
| 916 |
"remaining" : 24, |
| 917 |
"unit" : "DAY", |
| 918 |
"resetTime" : 1244511839 |
| 919 |
}, |
| 920 |
{
|
| 921 |
"verb" : "PUT", |
| 922 |
"URI" : "*", |
| 923 |
"regex" : ".*", |
| 924 |
"value" : 10, |
| 925 |
"remaining" : 2, |
| 926 |
"unit" : "MINUTE", |
| 927 |
"resetTime" : 1244425439 |
| 928 |
}, |
| 929 |
{
|
| 930 |
"verb" : "GET", |
| 931 |
"URI" : "*", |
| 932 |
"regex" : ".*", |
| 933 |
"value" : 3, |
| 934 |
"remaining" : 3, |
| 935 |
"unit" : "MINUTE", |
| 936 |
"resetTime" : 1244425439 |
| 937 |
}, |
| 938 |
{
|
| 939 |
"verb" : "DELETE", |
| 940 |
"URI" : "*", |
| 941 |
"regex" : ".*", |
| 942 |
"value" : 100, |
| 943 |
"remaining" : 100, |
| 944 |
"unit" : "MINUTE", |
| 945 |
"resetTime" : 1244425439 |
| 946 |
} |
| 947 |
] |
| 948 |
|
| 949 |
absolute = {
|
| 950 |
"maxTotalRAMSize" : 51200, |
| 951 |
"maxIPGroups" : 50, |
| 952 |
"maxIPGroupMembers" : 25 |
| 953 |
} |
| 954 |
|
| 955 |
def read(self, request): |
| 956 |
return { "limits": { |
| 957 |
"rate": self.rate, |
| 958 |
"absolute": self.absolute, |
| 959 |
} |
| 960 |
} |
| 961 |
|
| 962 |
|
| 963 |
class DiskHandler(BaseHandler): |
| 964 |
allowed_methods = ('GET', 'POST', 'PUT', 'DELETE') |
| 965 |
|
| 966 |
def read(self, request, id=None): |
| 967 |
"""List Disks"""
|
| 968 |
if id is None: |
| 969 |
return self.read_all(request) |
| 970 |
elif id == "detail": |
| 971 |
return self.read_all(request, detail=True) |
| 972 |
else:
|
| 973 |
return self.read_one(request, id) |
| 974 |
|
| 975 |
def read_one(self, request, id): |
| 976 |
"""List one Disk with the specified id with all details"""
|
| 977 |
# FIXME Get detailed info from the DB
|
| 978 |
# for the Disk with the specified id
|
| 979 |
try:
|
| 980 |
disk = Disk.objects.get(pk=id)
|
| 981 |
disk_details = {
|
| 982 |
"id" : disk.id,
|
| 983 |
"name" : disk.name,
|
| 984 |
"size" : disk.size,
|
| 985 |
"created" : disk.created,
|
| 986 |
"serverId" : disk.vm.id
|
| 987 |
} |
| 988 |
return { "disks" : disk_details } |
| 989 |
except:
|
| 990 |
raise fault.itemNotFound
|
| 991 |
|
| 992 |
@paginator
|
| 993 |
def read_all(self, request, detail=False): |
| 994 |
"""List all Disks. If -detail- is set list them with all details"""
|
| 995 |
if not detail: |
| 996 |
disks = Disk.objects.filter(owner=SynnefoUser.objects.all()[0])
|
| 997 |
return { "disks": [ { "id": disk.id, "name": disk.name } for disk in disks ] } |
| 998 |
else:
|
| 999 |
disks = Disk.objects.filter(owner=SynnefoUser.objects.all()[0])
|
| 1000 |
disks_details = [ {
|
| 1001 |
"id" : disk.id,
|
| 1002 |
"name" : disk.name,
|
| 1003 |
"size" : disk.size,
|
| 1004 |
"created" : disk.created,
|
| 1005 |
"serverId" : disk.vm.id,
|
| 1006 |
} for disk in disks ] |
| 1007 |
return { "disks": disks_details } |
| 1008 |
|
| 1009 |
def create(self, request): |
| 1010 |
"""Create a new Disk"""
|
| 1011 |
# FIXME Create a partial DB entry,
|
| 1012 |
# then call the backend for actual creation
|
| 1013 |
pass
|
| 1014 |
|
| 1015 |
def update(self, request, id): |
| 1016 |
"""Rename the Disk with the specified id"""
|
| 1017 |
# FIXME Change the Disk's name in the DB
|
| 1018 |
pass
|
| 1019 |
|
| 1020 |
def delete(self, request, id): |
| 1021 |
"""Destroy the Disk with the specified id"""
|
| 1022 |
# Call the backend for actual destruction
|
| 1023 |
pass
|