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# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import datetime
import os
import tempfile
import time
import unittest
from kubernetes.client import Configuration
from .config_exception import ConfigException
from .incluster_config import (SERVICE_HOST_ENV_NAME, SERVICE_PORT_ENV_NAME,
InClusterConfigLoader, _join_host_port)
_TEST_TOKEN = "temp_token"
_TEST_NEW_TOKEN = "temp_new_token"
_TEST_CERT = "temp_cert"
_TEST_HOST = "127.0.0.1"
_TEST_PORT = "80"
_TEST_HOST_PORT = "127.0.0.1:80"
_TEST_IPV6_HOST = "::1"
_TEST_IPV6_HOST_PORT = "[::1]:80"
_TEST_ENVIRON = {
SERVICE_HOST_ENV_NAME: _TEST_HOST,
SERVICE_PORT_ENV_NAME: _TEST_PORT
}
_TEST_IPV6_ENVIRON = {
SERVICE_HOST_ENV_NAME: _TEST_IPV6_HOST,
SERVICE_PORT_ENV_NAME: _TEST_PORT
}
class InClusterConfigTest(unittest.TestCase):
def setUp(self):
self._temp_files = []
def tearDown(self):
for f in self._temp_files:
os.remove(f)
def _create_file_with_temp_content(self, content=""):
handler, name = tempfile.mkstemp()
self._temp_files.append(name)
os.write(handler, str.encode(content))
os.close(handler)
return name
def get_test_loader(self,
token_filename=None,
cert_filename=None,
environ=_TEST_ENVIRON):
if not token_filename:
token_filename = self._create_file_with_temp_content(_TEST_TOKEN)
if not cert_filename:
cert_filename = self._create_file_with_temp_content(_TEST_CERT)
return InClusterConfigLoader(token_filename=token_filename,
cert_filename=cert_filename,
try_refresh_token=True,
environ=environ)
def test_join_host_port(self):
self.assertEqual(_TEST_HOST_PORT,
_join_host_port(_TEST_HOST, _TEST_PORT))
self.assertEqual(_TEST_IPV6_HOST_PORT,
_join_host_port(_TEST_IPV6_HOST, _TEST_PORT))
def test_load_config(self):
cert_filename = self._create_file_with_temp_content(_TEST_CERT)
loader = self.get_test_loader(cert_filename=cert_filename)
loader._load_config()
self.assertEqual("https://" + _TEST_HOST_PORT, loader.host)
self.assertEqual(cert_filename, loader.ssl_ca_cert)
self.assertEqual('bearer ' + _TEST_TOKEN, loader.token)
def test_refresh_token(self):
loader = self.get_test_loader()
config = Configuration()
loader.load_and_set(config)
self.assertEqual('bearer ' + _TEST_TOKEN,
config.get_api_key_with_prefix('authorization'))
self.assertEqual('bearer ' + _TEST_TOKEN, loader.token)
self.assertIsNotNone(loader.token_expires_at)
old_token = loader.token
old_token_expires_at = loader.token_expires_at
loader._token_filename = self._create_file_with_temp_content(
_TEST_NEW_TOKEN)
self.assertEqual('bearer ' + _TEST_TOKEN,
config.get_api_key_with_prefix('authorization'))
loader.token_expires_at = datetime.datetime.now()
self.assertEqual('bearer ' + _TEST_NEW_TOKEN,
config.get_api_key_with_prefix('authorization'))
self.assertEqual('bearer ' + _TEST_NEW_TOKEN, loader.token)
self.assertGreater(loader.token_expires_at, old_token_expires_at)
def _should_fail_load(self, config_loader, reason):
try:
config_loader.load_and_set()
self.fail("Should fail because %s" % reason)
except ConfigException:
# expected
pass
def test_no_port(self):
loader = self.get_test_loader(
environ={SERVICE_HOST_ENV_NAME: _TEST_HOST})
self._should_fail_load(loader, "no port specified")
def test_empty_port(self):
loader = self.get_test_loader(environ={
SERVICE_HOST_ENV_NAME: _TEST_HOST,
SERVICE_PORT_ENV_NAME: ""
})
self._should_fail_load(loader, "empty port specified")
def test_no_host(self):
loader = self.get_test_loader(
environ={SERVICE_PORT_ENV_NAME: _TEST_PORT})
self._should_fail_load(loader, "no host specified")
def test_empty_host(self):
loader = self.get_test_loader(environ={
SERVICE_HOST_ENV_NAME: "",
SERVICE_PORT_ENV_NAME: _TEST_PORT
})
self._should_fail_load(loader, "empty host specified")
def test_no_cert_file(self):
loader = self.get_test_loader(cert_filename="not_exists_file_1123")
self._should_fail_load(loader, "cert file does not exist")
def test_empty_cert_file(self):
loader = self.get_test_loader(
cert_filename=self._create_file_with_temp_content())
self._should_fail_load(loader, "empty cert file provided")
def test_no_token_file(self):
loader = self.get_test_loader(token_filename="not_exists_file_1123")
self._should_fail_load(loader, "token file does not exist")
def test_empty_token_file(self):
loader = self.get_test_loader(
token_filename=self._create_file_with_temp_content())
self._should_fail_load(loader, "empty token file provided")
if __name__ == '__main__':
unittest.main()
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