61 lines
2.3 KiB
Python
61 lines
2.3 KiB
Python
# Copyright (C) 2021 Red Hat
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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
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# implied.
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#
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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 base64
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from google.auth.exceptions import DefaultCredentialsError
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from kubernetes import client as k8s_client
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from kubernetes import config as k8s_config
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def _get_conf(log, context):
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try:
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return k8s_config.new_client_from_config(context=context)
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except FileNotFoundError:
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log.debug("Kubernetes config file not found, attempting "
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"to load in-cluster configs")
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return k8s_config.load_incluster_config()
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except k8s_config.config_exception.ConfigException as e:
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if 'Invalid kube-config file. No configuration found.' in str(e):
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log.debug("Kubernetes config file not found, attempting "
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"to load in-cluster configs")
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return k8s_config.load_incluster_config()
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else:
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raise
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def get_client(log, context, extra_client_constructor=None):
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token, ca, client, extra_client = None, None, None, None
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try:
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conf = _get_conf(log, context)
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if conf:
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auth = conf.configuration.api_key.get('authorization')
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if auth:
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token = auth.split()[-1]
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if conf and conf.configuration.ssl_ca_cert:
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with open(conf.configuration.ssl_ca_cert) as ca_file:
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ca = ca_file.read()
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ca = base64.b64encode(ca.encode('utf-8')).decode('utf-8')
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client = k8s_client.CoreV1Api(conf)
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if extra_client_constructor:
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extra_client = extra_client_constructor(conf)
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except DefaultCredentialsError as e:
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log.error("Invalid kubernetes configuration: %s", e)
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except k8s_config.config_exception.ConfigException:
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log.exception(
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"Couldn't load context %s from config", context)
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return (token, ca, client, extra_client)
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