306 lines
12 KiB
Python
306 lines
12 KiB
Python
# Copyright (C) 2021 Nippon Telegraph and Telephone Corporation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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from oslo_log import log as logging
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from oslo_utils import uuidutils
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from tacker.common import utils as common_utils
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import tacker.conf
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from tacker.objects import fields
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from tacker.objects import vnf_package
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from tacker.objects import vnf_package_vnfd
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from tacker.sol_refactored.common import config
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from tacker.sol_refactored.common import exceptions as sol_ex
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from tacker.sol_refactored.common import lcm_op_occ_utils as lcmocc_utils
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from tacker.sol_refactored.common import vim_utils
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from tacker.sol_refactored.common import vnf_instance_utils as inst_utils
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from tacker.sol_refactored.common import vnfd_utils
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from tacker.sol_refactored.nfvo import glance_utils
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from tacker.sol_refactored import objects
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from tacker.sol_refactored.objects.v2 import fields as v2_fields
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CONF = tacker.conf.CONF
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LOG = logging.getLogger(__name__)
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# NOTE:
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# It is NFVO implementation used when an external NFVO is not used.
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# It implements only functions necessary for vnflcm v2.
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# It uses original tacker vnfpkgm v1 for vnf package managemnet
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# and adds grant functions.
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class LocalNfvo(object):
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def __init__(self):
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self.inst_vim_info = {}
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def onboarded_show(self, context, id):
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pkg_vnfd = vnf_package_vnfd.VnfPackageVnfd().get_by_vnfdId(
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context, id)
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if not pkg_vnfd:
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raise sol_ex.VnfdIdNotFound(vnfd_id=id)
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vnf_pkg = vnf_package.VnfPackage().get_by_id(
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context, pkg_vnfd.package_uuid)
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if not vnf_pkg:
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# never happen. just for code consistency.
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raise sol_ex.VnfdIdNotFound(vnfd_id=id)
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if (vnf_pkg.onboarding_state !=
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fields.PackageOnboardingStateType.ONBOARDED):
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# NOTE: API itself should be return 409 but it is used by
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# only vnf_instance create and will be converted to 422 in it.
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raise sol_ex.VnfdIdNotFound(vnfd_id=id)
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# NOTE:
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# This is used for vnf_instance create at the moment.
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# It is set only attributes necessary for vnf_instance create.
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res = objects.VnfPkgInfoV2(
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id=pkg_vnfd.package_uuid,
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vnfdId=pkg_vnfd.vnfd_id,
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vnfProvider=pkg_vnfd.vnf_provider,
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vnfProductName=pkg_vnfd.vnf_product_name,
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vnfSoftwareVersion=pkg_vnfd.vnf_software_version,
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vnfdVersion=pkg_vnfd.vnfd_version,
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operationalState=vnf_pkg.operational_state
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)
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return res
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def get_csar_dir(self, context, vnfd_id):
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pkg_vnfd = vnf_package_vnfd.VnfPackageVnfd().get_by_vnfdId(
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context, vnfd_id)
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if not pkg_vnfd:
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raise sol_ex.VnfdIdNotFound(vnfd_id=vnfd_id)
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csar_dir = os.path.join(CONF.vnf_package.vnf_package_csar_path,
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pkg_vnfd.package_uuid)
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if not os.path.isdir(csar_dir):
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raise sol_ex.VnfdIdNotFound(vnfd_id=vnfd_id)
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return csar_dir
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def get_vnfd(self, context, vnfd_id):
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vnfd = vnfd_utils.Vnfd(vnfd_id)
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vnfd.init_from_csar_dir(self.get_csar_dir(context, vnfd_id))
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return vnfd
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def _glance_create_image(self, vim_info, vnfd, sw_data, inst_id):
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min_disk = 0
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if 'min_disk' in sw_data:
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min_disk = common_utils.MemoryUnit.convert_unit_size_to_num(
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sw_data['min_disk'], 'GB')
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min_ram = 0
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if 'min_ram' in sw_data:
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min_ram = common_utils.MemoryUnit.convert_unit_size_to_num(
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sw_data['min_ram'], 'MB')
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filename = os.path.join(vnfd.csar_dir,
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sw_data['file'].split('../')[-1])
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# NOTE: use tag to find to delete images when terminate vnf instance.
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create_args = {
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'min_disk': min_disk,
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'min_ram': min_ram,
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'disk_format': sw_data.get('disk_format'),
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'container_format': sw_data.get('container_format'),
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'filename': filename,
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'visibility': 'private',
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'tags': [inst_id]
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}
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glance_client = glance_utils.GlanceClient(vim_info)
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image = glance_client.create_image(sw_data['name'], **create_args)
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LOG.debug("image created name: %s id: %s", sw_data['name'], image.id)
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return image.id
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def _get_vim_info(self, context, grant_req):
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lcmocc = lcmocc_utils.get_lcmocc(context, grant_req.vnfLcmOpOccId)
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inst_req = lcmocc.operationParams
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if inst_req.obj_attr_is_set('vimConnectionInfo'):
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return inst_utils.select_vim_info(inst_req.vimConnectionInfo)
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# NOTE: exception is not raised.
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return vim_utils.get_default_vim(context)
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def instantiate_grant(self, context, grant_req, grant_res):
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# handle ZoneInfo
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zone_list = config.CONF.v2_nfvo.test_grant_zone_list
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zone_id = None
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if len(zone_list) > 0:
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zone_infos = []
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for zone in zone_list:
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zone_info = objects.ZoneInfoV1(
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id=uuidutils.generate_uuid(),
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zoneId=zone
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)
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zone_infos.append(zone_info)
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grant_res.zones = zone_infos
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zone_id = zone_infos[0].id
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# handle addResources.
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# only copy req to res. i.e. grant all.
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attr = 'addResources'
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if grant_req.obj_attr_is_set(attr):
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add_res = []
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for res_def in grant_req[attr]:
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g_info = objects.GrantInfoV1(
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resourceDefinitionId=res_def.id
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)
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if zone_id is not None and res_def.type == 'COMPUTE':
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g_info.zoneId = zone_id
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add_res.append(g_info)
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grant_res[attr] = add_res
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# handle vimAssets
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# if there is an artifact, create glance image.
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vnfd = self.get_vnfd(context, grant_req.vnfdId)
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sw_image_data = vnfd.get_sw_image_data(grant_req.flavourId)
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vim_sw_images = []
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for res_id, sw_data in sw_image_data.items():
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if 'file' in sw_data:
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# if artifact is specified, create glance image.
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# it may fail. catch exception and raise 403(not granted)
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# if error occur.
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# get vim_info to access glance
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vim_info = self._get_vim_info(context, grant_req)
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if vim_info is None:
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msg = "No vimConnectionInfo to create glance image"
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raise sol_ex.LocalNfvoGrantFailed(sol_detail=msg)
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try:
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image = self._glance_create_image(vim_info, vnfd, sw_data,
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grant_req.vnfInstanceId)
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except Exception:
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msg = "glance image create failed"
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LOG.exception(msg)
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raise sol_ex.LocalNfvoGrantFailed(sol_detail=msg)
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else:
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# there is no artifact. suppose image already created.
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image = sw_data['name']
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vim_sw_image = objects.VimSoftwareImageV1(
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vnfdSoftwareImageId=res_id,
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vimSoftwareImageId=image)
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vim_sw_images.append(vim_sw_image)
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if vim_sw_images:
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grant_res.vimAssets = objects.GrantV1_VimAssets(
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softwareImages=vim_sw_images
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)
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def grant(self, context, grant_req):
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grant_res = objects.GrantV1(
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id=uuidutils.generate_uuid(),
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vnfInstanceId=grant_req.vnfInstanceId,
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vnfLcmOpOccId=grant_req.vnfLcmOpOccId
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)
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# NOTE: considered instantiate only at the moment.
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# terminate is granted with no grant_res constructed.
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if grant_req.operation == v2_fields.LcmOperationType.INSTANTIATE:
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self.instantiate_grant(context, grant_req, grant_res)
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endpoint = config.CONF.v2_vnfm.endpoint
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grant_res._links = objects.GrantV1_Links(
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vnfLcmOpOcc=objects.Link(
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href=lcmocc_utils.lcmocc_href(grant_req.vnfLcmOpOccId,
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endpoint)),
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vnfInstance=objects.Link(
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href=inst_utils.inst_href(grant_req.vnfInstanceId,
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endpoint))
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)
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grant_res._links.self = objects.Link(
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href="{}/grant/v1/grants/{}".format(endpoint, grant_res.id))
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return grant_res
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def _update_vnf_pkg_usage_state(self, context, vnfd_id, state):
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pkg_vnfd = vnf_package_vnfd.VnfPackageVnfd().get_by_vnfdId(
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context, vnfd_id)
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if not pkg_vnfd:
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# should not happen. just for code consistency.
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LOG.error("VnfPackage of vnfdID %s not found.", vnfd_id)
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return
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vnf_pkg = vnf_package.VnfPackage().get_by_id(
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context, pkg_vnfd.package_uuid)
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if not vnf_pkg:
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# should not happen. just for code consistency.
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LOG.error("VnfPackage %s not found.", pkg_vnfd.package_uuid)
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return
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# prevent raising exception since this method is not a part of VNFM.
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try:
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vnf_pkg.usage_state = state
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vnf_pkg.save()
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except Exception as ex:
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LOG.error("Update vnfPackage %s to %s failed: %s",
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pkg_vnfd.package_uuid, state, ex)
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def recv_inst_create_notification(self, context, inst):
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# update vnfPackage usageState to IN_USE
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self._update_vnf_pkg_usage_state(context, inst.vnfdId,
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fields.PackageUsageStateType.IN_USE)
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def recv_inst_delete_notification(self, context, inst):
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# update vnfPackage usageState to NOT_IN_USE
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self._update_vnf_pkg_usage_state(context, inst.vnfdId,
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fields.PackageUsageStateType.NOT_IN_USE)
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def _glance_delete_images(self, vim_info, inst_id):
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# prevent raising exception since this method is not a part of VNFM.
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try:
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glance_client = glance_utils.GlanceClient(vim_info)
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images = glance_client.list_images(tag=inst_id)
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except Exception:
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LOG.error("Get glance images for vnfInstance %s failed.", inst_id)
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return
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for image in images:
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try:
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glance_client.delete_image(image.id)
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LOG.debug("image deleted name: %s id: %s",
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image.name, image.id)
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except Exception:
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LOG.error("image delete %s failed.", image.id)
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def recv_lcmocc_notification(self, context, lcmocc, inst):
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if lcmocc.operation == v2_fields.LcmOperationType.TERMINATE:
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if (lcmocc.operationState ==
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v2_fields.LcmOperationStateType.PROCESSING):
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# register vim_info of vnf instance so that
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# it is used later to delete glance image.
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vim_info = inst_utils.select_vim_info(inst.vimConnectionInfo)
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self.inst_vim_info[inst.id] = vim_info
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elif (lcmocc.operationState ==
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v2_fields.LcmOperationStateType.FAILED_TEMP):
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self.inst_vim_info.pop(inst.id, None)
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elif (lcmocc.operationState ==
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v2_fields.LcmOperationStateType.COMPLETED):
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vim_info = self.inst_vim_info.pop(inst.id, None)
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if vim_info is None:
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# never happen. just for code consistency.
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return
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self._glance_delete_images(vim_info, inst.id)
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