102 lines
3.5 KiB
Python
102 lines
3.5 KiB
Python
# Copyright 2015 Brocade Communications System, Inc.
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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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import tempfile
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import yaml
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import zipfile
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from oslo_utils import uuidutils
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def read_file(input_file):
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yaml_file = os.path.abspath(os.path.join(os.path.dirname(__file__),
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'etc/samples/' + str(input_file)))
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with open(yaml_file, 'r') as f:
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return f.read()
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def _update_unique_id_in_yaml(data, uid):
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try:
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prop = data['topology_template']['node_templates']['VNF'][
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'properties']
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if (prop.get('descriptor_id', None)):
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prop['descriptor_id'] = uid
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except KeyError:
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# Let's check for 'node_types'
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pass
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if not data.get('node_types', None):
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return
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for ntype in data['node_types'].values():
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if ntype['derived_from'] != 'tosca.nodes.nfv.VNF':
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continue
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try:
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desc_id = ntype['properties']['descriptor_id']
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if desc_id.get('constraints', None):
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for constraint in desc_id.get('constraints'):
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if constraint.get('valid_values', None):
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constraint['valid_values'] = [uid]
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if desc_id.get('default', None):
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desc_id['default'] = uid
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except KeyError:
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# Let's check next node_type
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pass
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def create_csar_with_unique_vnfd_id(csar_dir):
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"""Create CSAR file from a directory structure
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For various tests it is necessary to have a CSAR having unique vnfd id.
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This function reads a directory structure, updates vnfd id in yaml files
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and creates a temporary CSAR zip file.
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:returns:
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- csar_file_name
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- vnfd_id
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"""
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unique_id = uuidutils.generate_uuid()
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tempfd, tempname = tempfile.mkstemp(suffix=".zip",
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dir=os.path.dirname(csar_dir))
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os.close(tempfd)
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common_dir = os.path.join(csar_dir, "../common/")
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zcsar = zipfile.ZipFile(tempname, 'w')
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for (dpath, _, fnames) in os.walk(csar_dir):
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if not fnames:
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continue
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for fname in fnames:
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src_file = os.path.join(dpath, fname)
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dst_file = os.path.relpath(os.path.join(dpath, fname), csar_dir)
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if fname.endswith('.yaml') or fname.endswith('.yml'):
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with open(src_file, 'rb') as yfile:
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data = yaml.safe_load(yfile)
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_update_unique_id_in_yaml(data, unique_id)
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zcsar.writestr(dst_file, yaml.dump(
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data, default_flow_style=False, allow_unicode=True))
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else:
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zcsar.write(src_file, dst_file)
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for (dpath, _, fnames) in os.walk(common_dir):
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if not fnames:
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continue
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for fname in fnames:
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src_file = os.path.join(dpath, fname)
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dst_file = os.path.relpath(os.path.join(dpath, fname), common_dir)
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zcsar.write(src_file, dst_file)
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zcsar.close()
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return tempname, unique_id
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