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# Copyright 2018 Telefonica |
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# |
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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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""" |
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OSM vnfd API handling |
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""" |
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from osmclient.common.exceptions import NotFound |
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from osmclient.common.exceptions import ClientException |
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from osmclient.common import utils |
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import json |
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import yaml |
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import magic |
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from os.path import basename |
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import logging |
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import os.path |
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from urllib.parse import quote |
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import tarfile |
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from osm_im.validation import Validation as validation_im |
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class Vnfd(object): |
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def __init__(self, http=None, client=None): |
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self._http = http |
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self._client = client |
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self._logger = logging.getLogger('osmclient') |
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self._apiName = '/vnfpkgm' |
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self._apiVersion = '/v1' |
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self._apiResource = '/vnf_packages' |
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self._apiBase = '{}{}{}'.format(self._apiName, |
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self._apiVersion, self._apiResource) |
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|
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def list(self, filter=None): |
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self._logger.debug("") |
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self._client.get_token() |
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filter_string = '' |
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if filter: |
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filter_string = '?{}'.format(filter) |
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_, resp = self._http.get2_cmd('{}{}'.format(self._apiBase, filter_string)) |
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if resp: |
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return json.loads(resp) |
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return list() |
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|
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def get(self, name): |
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self._logger.debug("") |
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self._client.get_token() |
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if utils.validate_uuid4(name): |
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for vnfd in self.list(): |
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if name == vnfd['_id']: |
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return vnfd |
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else: |
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for vnfd in self.list(): |
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if 'product-name' in vnfd and name == vnfd['product-name']: |
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return vnfd |
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elif 'name' in vnfd and name == vnfd['name']: |
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return vnfd |
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raise NotFound("vnfd {} not found".format(name)) |
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|
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def get_individual(self, name): |
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self._logger.debug("") |
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vnfd = self.get(name) |
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# It is redundant, since the previous one already gets the whole vnfpkginfo |
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# The only difference is that a different primitive is exercised |
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try: |
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_, resp = self._http.get2_cmd('{}/{}'.format(self._apiBase, vnfd['_id'])) |
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if resp: |
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return json.loads(resp) |
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except NotFound: |
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raise NotFound("vnfd '{}' not found".format(name)) |
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raise NotFound("vnfd '{}' not found".format(name)) |
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|
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def get_thing(self, name, thing, filename): |
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self._logger.debug("") |
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vnfd = self.get(name) |
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headers = self._client._headers |
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headers['Accept'] = 'application/binary' |
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http_code, resp = self._http.get2_cmd('{}/{}/{}'.format(self._apiBase, vnfd['_id'], thing)) |
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if resp: |
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return json.loads(resp) |
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def get_descriptor(self, name, filename): |
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self._logger.debug("") |
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self.get_thing(name, 'vnfd', filename) |
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def get_package(self, name, filename): |
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self._logger.debug("") |
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self.get_thing(name, 'package_content', filename) |
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def get_artifact(self, name, artifact, filename): |
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self._logger.debug("") |
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self.get_thing(name, 'artifacts/{}'.format(artifact), filename) |
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def delete(self, name, force=False): |
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self._logger.debug("") |
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self._client.get_token() |
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vnfd = self.get(name) |
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querystring = '' |
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if force: |
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querystring = '?FORCE=True' |
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http_code, resp = self._http.delete_cmd('{}/{}{}'.format(self._apiBase, |
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vnfd['_id'], querystring)) |
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if http_code == 202: |
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print('Deletion in progress') |
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elif http_code == 204: |
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print('Deleted') |
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else: |
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msg = resp or "" |
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raise ClientException("failed to delete vnfd {} - {}".format(name, msg)) |
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def create(self, filename, overwrite=None, update_endpoint=None, skip_charm_build=False, |
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override_epa=False, override_nonepa=False, override_paravirt=False): |
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self._logger.debug("") |
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if os.path.isdir(filename): |
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filename = filename.rstrip('/') |
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filename = self._client.package_tool.build(filename, skip_validation=False, |
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skip_charm_build=skip_charm_build) |
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print('Uploading package {}'.format(filename)) |
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self.create(filename, overwrite=overwrite, update_endpoint=update_endpoint, |
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override_epa=override_epa, override_nonepa=override_nonepa, |
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override_paravirt=override_paravirt) |
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else: |
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self._client.get_token() |
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mime_type = magic.from_file(filename, mime=True) |
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if mime_type is None: |
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raise ClientException( |
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"Unexpected MIME type for file {}: MIME type {}".format( |
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filename, mime_type) |
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) |
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headers = self._client._headers |
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headers['Content-Filename'] = basename(filename) |
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if mime_type in ['application/yaml', 'text/plain', 'application/json']: |
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headers['Content-Type'] = 'text/plain' |
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elif mime_type in ['application/gzip', 'application/x-gzip']: |
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headers['Content-Type'] = 'application/gzip' |
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else: |
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raise ClientException( |
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"Unexpected MIME type for file {}: MIME type {}".format( |
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filename, mime_type) |
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) |
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special_override_string = '' |
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if override_epa or override_nonepa or override_paravirt: |
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# If override for EPA, non-EPA or paravirt is required, get the descriptor data |
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descriptor_data = None |
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if mime_type in ['application/yaml', 'text/plain', 'application/json']: |
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with open(filename) as df: |
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descriptor_data = df.read() |
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elif mime_type in ['application/gzip', 'application/x-gzip']: |
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tar_object = tarfile.open(filename, "r:gz") |
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descriptor_list = [] |
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for member in tar_object: |
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if member.isreg(): |
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if '/' not in os.path.dirname(member.name) and member.name.endswith('.yaml'): |
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descriptor_list.append(member.name) |
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if len(descriptor_list) > 1: |
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raise ClientException('Found more than one potential descriptor in the tar.gz file') |
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elif len(descriptor_list) == 0: |
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raise ClientException('No descriptor was found in the tar.gz file') |
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with tar_object.extractfile(descriptor_list[0]) as df: |
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descriptor_data = df.read() |
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tar_object.close() |
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if not descriptor_data: |
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raise ClientException('Descriptor could not be read') |
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desc_type, vnfd = validation_im().yaml_validation(descriptor_data) |
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validation_im().pyangbind_validation(desc_type, vnfd) |
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vnfd = yaml.safe_load(descriptor_data) |
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vcd_list = [] |
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vdu_list = [] |
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for k in vnfd: |
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# Get only the first descriptor in case there are many in the yaml file |
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# k can be vnfd or etsi-nfv-vnfd:vnfd. This check is skipped |
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first_vnfd = vnfd.get(k, {}) |
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vcd_list = first_vnfd.get('virtual-compute-desc', []) |
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vdu_list = first_vnfd.get('vdu', []) |
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break |
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for vcd_number, vcd in enumerate(vcd_list): |
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if override_epa: |
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virtual_memory = vcd["virtual-memory"] |
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virtual_memory["mempage-size"] = "LARGE" |
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virtual_memory["numa-enabled"] = True |
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virtual_memory["numa-node-policy"] = { |
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"node-cnt": 1, |
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"mem-policy": "STRICT" |
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} |
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virtual_cpu = vcd["virtual-cpu"] |
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virtual_cpu["pinning"] = { |
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"policy": "static", |
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"thread-policy": "PREFER" |
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} |
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cpu_override_string = "virtual-compute-desc.{}.virtual-cpu={};"\ |
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.format(vcd_number, quote(yaml.safe_dump(virtual_cpu))) |
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memory_override_string = "virtual-compute-desc.{}.virtual-memory={};"\ |
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.format(vcd_number, quote(yaml.safe_dump(virtual_memory))) |
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special_override_string = "{}{}{}".format(special_override_string, |
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cpu_override_string, memory_override_string) |
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headers['Query-String-Format'] = 'yaml' |
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if override_nonepa: |
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virtual_memory = vcd["virtual-memory"] |
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virtual_memory["mempage-size"] = "" |
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virtual_memory["numa-enabled"] = "" |
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virtual_memory["numa-node-policy"] = {} |
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virtual_cpu = vcd["virtual-cpu"] |
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virtual_cpu["pinning"] = {} |
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cpu_override_string = "virtual-compute-desc.{}.virtual-cpu={};"\ |
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.format(vcd_number, quote(yaml.safe_dump(virtual_cpu))) |
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memory_override_string = "virtual-compute-desc.{}.virtual-memory={};"\ |
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.format(vcd_number, quote(yaml.safe_dump(virtual_memory))) |
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special_override_string = "{}{}{}".format(special_override_string, |
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cpu_override_string, memory_override_string) |
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if override_paravirt: |
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for vdu_number, vdu in enumerate(vdu_list): |
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for cpd_number, cpd in enumerate(vdu["int-cpd"]): |
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for vnir_number, vnir in enumerate(cpd['virtual-network-interface-requirement']): |
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special_override_string = "{}vdu.{}.int-cpd.{}.virtual-network-interface-" \ |
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"requirement.{}.virtual-interface.type=PARAVIRT;"\ |
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.format(special_override_string, vdu_number, cpd_number, vnir_number) |
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special_override_string = special_override_string.rstrip(";") |
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headers["Content-File-MD5"] = utils.md5(filename) |
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http_header = ['{}: {}'.format(key, val) |
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for (key, val) in list(headers.items())] |
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self._http.set_http_header(http_header) |
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if update_endpoint: |
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http_code, resp = self._http.put_cmd(endpoint=update_endpoint, filename=filename) |
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else: |
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ow_string = '' |
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if special_override_string: |
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if overwrite: |
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overwrite = "{};{}".format(overwrite, special_override_string) |
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else: |
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overwrite = special_override_string |
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if overwrite: |
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ow_string = '?{}'.format(overwrite) |
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self._apiResource = '/vnf_packages_content' |
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self._apiBase = '{}{}{}'.format(self._apiName, |
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self._apiVersion, self._apiResource) |
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endpoint = '{}{}'.format(self._apiBase, ow_string) |
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http_code, resp = self._http.post_cmd(endpoint=endpoint, filename=filename) |
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|
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if http_code in (200, 201, 202): |
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if resp: |
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resp = json.loads(resp) |
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if not resp or 'id' not in resp: |
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raise ClientException('unexpected response from server: {}'.format(resp)) |
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print(resp['id']) |
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elif http_code == 204: |
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print('Updated') |
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def update(self, name, filename): |
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self._logger.debug("") |
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self._client.get_token() |
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vnfd = self.get(name) |
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endpoint = '{}/{}/package_content'.format(self._apiBase, vnfd['_id']) |
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self.create(filename=filename, update_endpoint=endpoint) |
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