Revision bcd80cd9 snf-cyclades-app/synnefo/api/servers.py
| b/snf-cyclades-app/synnefo/api/servers.py | ||
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@api.api_method(http_method='POST', user_required=True, logger=log) |
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# Use manual transactions. Backend and IP pool allocations need exclusive |
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# access (SELECT..FOR UPDATE). Running create_server with commit_on_success |
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# would result in backends and public networks to be locked until the job is |
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# sent to the Ganeti backend. |
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@transaction.commit_manually |
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def create_server(request): |
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# Normal Response Code: 202 |
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# Error Response Codes: computeFault (400, 500), |
| ... | ... | |
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# badRequest (400), |
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# serverCapacityUnavailable (503), |
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# overLimit (413) |
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req = utils.get_request_dict(request) |
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log.info('create_server %s', req)
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user_id = request.user_uniq |
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try: |
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req = utils.get_request_dict(request) |
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log.info('create_server %s', req)
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user_id = request.user_uniq |
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server = req['server'] |
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name = server['name'] |
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metadata = server.get('metadata', {})
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assert isinstance(metadata, dict) |
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image_id = server['imageRef'] |
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flavor_id = server['flavorRef'] |
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personality = server.get('personality', [])
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assert isinstance(personality, list) |
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except (KeyError, AssertionError): |
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raise faults.BadRequest("Malformed request")
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# Verify that personalities are well-formed |
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util.verify_personality(personality) |
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# Get image information |
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image = util.get_image_dict(image_id, user_id) |
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# Get flavor (ensure it is active) |
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flavor = util.get_flavor(flavor_id, include_deleted=False) |
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# Generate password |
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password = util.random_password() |
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vm = do_create_server(user_id, name, password, flavor, image, |
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metadata=metadata, personality=personality) |
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server = vm_to_dict(vm, detail=True) |
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server['status'] = 'BUILD' |
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server['adminPass'] = password |
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response = render_server(request, server, status=202) |
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return response |
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@transaction.commit_manually |
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def do_create_server(userid, name, password, flavor, image, metadata={},
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personality=[], network=None, backend=None): |
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if backend is None: |
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# Allocate backend to host the server. Commit after allocation to |
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# release the locks hold by the backend allocator. |
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try: |
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server = req['server'] |
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name = server['name'] |
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metadata = server.get('metadata', {})
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assert isinstance(metadata, dict) |
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image_id = server['imageRef'] |
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flavor_id = server['flavorRef'] |
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personality = server.get('personality', [])
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assert isinstance(personality, list) |
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except (KeyError, AssertionError): |
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raise faults.BadRequest("Malformed request")
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# Verify that personalities are well-formed |
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util.verify_personality(personality) |
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# Get image information |
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image = util.get_image_dict(image_id, user_id) |
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# Get flavor (ensure it is active) |
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flavor = util.get_flavor(flavor_id, include_deleted=False) |
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# Allocate VM to backend |
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backend_allocator = BackendAllocator() |
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backend = backend_allocator.allocate(request.user_uniq, flavor) |
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if backend is None: |
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log.error("No available backends for VM with flavor %s", flavor)
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raise faults.ServiceUnavailable("No available backends")
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except: |
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transaction.rollback() |
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raise |
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else: |
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transaction.commit() |
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backend_allocator = BackendAllocator() |
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backend = backend_allocator.allocate(userid, flavor) |
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if backend is None: |
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log.error("No available backend for VM with flavor %s", flavor)
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raise faults.ServiceUnavailable("No available backends")
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except: |
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transaction.rollback() |
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raise |
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else: |
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transaction.commit() |
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# Fix flavor for archipelago |
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password = util.random_password() |
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disk_template, provider = util.get_flavor_provider(flavor) |
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if provider: |
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flavor.disk_template = disk_template |
| ... | ... | |
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flavor.disk_provider = None |
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try: |
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# Allocate IP from public network |
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(network, address) = util.get_public_ip(backend) |
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nic = {'ip': address, 'network': network.backend_id}
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if network is None: |
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# Allocate IP from public network |
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(network, address) = util.get_public_ip(backend) |
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nic = {'ip': address, 'network': network.backend_id}
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else: |
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address = util.get_network_free_address(network) |
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# We must save the VM instance now, so that it gets a valid |
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# vm.backend_vm_id. |
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vm = VirtualMachine.objects.create( |
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name=name, |
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backend=backend, |
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userid=user_id,
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imageid=image_id,
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userid=userid, |
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imageid=image["id"],
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flavor=flavor, |
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action="CREATE") |
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|
| ... | ... | |
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vm.save() |
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transaction.commit() |
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log.info("User %s created VM %s, NIC %s, Backend %s, JobID %s",
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user_id, vm, nic, backend, str(jobID))
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userid, vm, nic, backend, str(jobID)) |
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except GanetiApiError as e: |
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log.exception("Can not communicate to backend %s: %s.",
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backend, e) |
| ... | ... | |
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transaction.rollback() |
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raise |
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server = vm_to_dict(vm, detail=True) |
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server['status'] = 'BUILD' |
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server['adminPass'] = password |
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response = render_server(request, server, status=202) |
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return response |
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return vm |
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@api.api_method(http_method='GET', user_required=True, logger=log) |
Also available in: Unified diff