Cong Phuoc Hoang
18ac452c38
This spec proposes implementing containerized VNF. We choose to use Kubernetes resources (ConfigMap, Deployment, Horizontal Pod Autoscaler, Service, etc) to define a containerized VNF. 1. Add "configurable_properties" type in VDU node. 2. Support translate TOSCA to Kubernetes templates. 3. Add kubernetes infra driver to support CRUD containerized VNF. Implements: blueprint containerised-vnfs Change-Id: I706f1f325ca8c2b33debd7e6a13e81535245a5ad
97 lines
3.5 KiB
Python
97 lines
3.5 KiB
Python
# All Rights Reserved.
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#
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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 re
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import six
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import tempfile
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from cryptography import fernet
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from kubernetes import client
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from kubernetes.client import api_client
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from oslo_config import cfg
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from oslo_log import log as logging
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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class KubernetesHTTPAPI(object):
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def get_k8s_client(self, auth_plugin):
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config = client.Configuration()
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config.host = auth_plugin['auth_url']
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if ('username' in auth_plugin) and ('password' in auth_plugin)\
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and (auth_plugin['password'] is not None):
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config.username = auth_plugin['username']
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config.password = auth_plugin['password']
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basic_token = config.get_basic_auth_token()
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config.api_key['authorization'] = basic_token
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if 'bearer_token' in auth_plugin:
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config.api_key_prefix['authorization'] = 'Bearer'
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config.api_key['authorization'] = auth_plugin['bearer_token']
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ca_cert_file = auth_plugin.get('ca_cert_file')
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if ca_cert_file is not None:
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config.ssl_ca_cert = ca_cert_file
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config.verify_ssl = True
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else:
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config.verify_ssl = False
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k8s_client = api_client.ApiClient(configuration=config)
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return k8s_client
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def get_extension_api_client(self, auth):
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k8s_client = self.get_k8s_client(auth_plugin=auth)
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return client.ExtensionsV1beta1Api(api_client=k8s_client)
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def get_core_v1_api_client(self, auth):
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k8s_client = self.get_k8s_client(auth_plugin=auth)
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return client.CoreV1Api(api_client=k8s_client)
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def get_core_api_client(self, auth):
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k8s_client = self.get_k8s_client(auth_plugin=auth)
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return client.CoreApi(api_client=k8s_client)
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def get_scaling_api_client(self, auth):
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k8s_client = self.get_k8s_client(auth_plugin=auth)
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return client.AutoscalingV1Api(api_client=k8s_client)
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@staticmethod
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def create_ca_cert_tmp_file(ca_cert):
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file_descriptor, file_path = tempfile.mkstemp()
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ca_cert = re.sub(r'\s', '\n', ca_cert)
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ca_cert = re.sub(r'BEGIN\nCERT', r'BEGIN CERT', ca_cert)
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ca_cert = re.sub(r'END\nCERT', r'END CERT', ca_cert)
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try:
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with open(file_path, 'w') as f:
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if six.PY2:
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f.write(ca_cert.decode('utf-8'))
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else:
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f.write(ca_cert)
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LOG.debug('ca cert temp file successfully stored in %s',
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file_path)
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except IOError:
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raise Exception('Failed to create %s file', file_path)
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return file_descriptor, file_path
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@staticmethod
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def close_tmp_file(file_descriptor, file_path):
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os.close(file_descriptor)
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os.remove(file_path)
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def create_fernet_key(self):
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fernet_key = fernet.Fernet.generate_key()
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fernet_obj = fernet.Fernet(fernet_key)
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return fernet_key, fernet_obj
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