83 lines
2.5 KiB
Python
Executable File
83 lines
2.5 KiB
Python
Executable File
# Copyright 2015 Huawei Technologies Co.,LTD.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import tempfile
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from kubernetes import client as k8s_config
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from kubernetes.client import api_client
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from kubernetes.client.apis import core_v1_api
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from oslo_log import log as logging
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from magnum.conductor.handlers.common.cert_manager import create_client_files
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LOG = logging.getLogger(__name__)
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class K8sAPI(core_v1_api.CoreV1Api):
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def _create_temp_file_with_content(self, content):
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"""Creates temp file and write content to the file.
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:param content: file content
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:returns: temp file
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"""
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try:
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tmp = tempfile.NamedTemporaryFile(delete=True)
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tmp.write(content)
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tmp.flush()
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except Exception as err:
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LOG.error("Error while creating temp file: %s", err)
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raise
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return tmp
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def __init__(self, context, cluster):
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self.ca_file = None
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self.cert_file = None
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self.key_file = None
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if cluster.magnum_cert_ref:
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(self.ca_file, self.key_file,
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self.cert_file) = create_client_files(cluster, context)
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config = k8s_config.Configuration()
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config.host = cluster.api_address
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config.ssl_ca_cert = self.ca_file.name
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config.cert_file = self.cert_file.name
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config.key_file = self.key_file.name
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# build a connection with Kubernetes master
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client = api_client.ApiClient(configuration=config)
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super(K8sAPI, self).__init__(client)
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def __del__(self):
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if self.ca_file:
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self.ca_file.close()
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if self.cert_file:
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self.cert_file.close()
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if self.key_file:
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self.key_file.close()
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def create_k8s_api(context, cluster):
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"""Create a kubernetes API client
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Creates connection with Kubernetes master and creates ApivApi instance
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to call Kubernetes APIs.
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:param context: The security context
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:param cluster: Cluster object
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"""
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return K8sAPI(context, cluster)
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