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# Copyright (c) 2013 NEC Corporation
# All Rights Reserved.
#
# 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 threading
import time
import mock
from oslo_config import fixture as config
from oslo_serialization import jsonutils
from oslotest import base as test_base
import requests
import webob.dec
import webob.exc
from oslo_middleware import healthcheck
from oslo_middleware.healthcheck import __main__
class HealthcheckMainTests(test_base.BaseTestCase):
def test_startup_response(self):
server = __main__.create_server(0)
th = threading.Thread(target=server.serve_forever)
th.start()
self.addCleanup(server.shutdown)
while True:
try:
# Connecting on 0.0.0.0 is not allowed on windows
# The operating system will return WSAEADDRNOTAVAIL which
# in turn will throw a requests.ConnectionError
r = requests.get("http://127.0.0.1:%s" % (
server.server_address[1]))
except requests.ConnectionError:
# Server hasn't started up yet, try again in a few.
time.sleep(1)
else:
self.assertEqual(200, r.status_code)
break
class HealthcheckTests(test_base.BaseTestCase):
def setUp(self):
super(HealthcheckTests, self).setUp()
self.useFixture(config.Config())
@staticmethod
@webob.dec.wsgify
def application(req):
return 'Hello, World!!!'
def _do_test_request(self, conf={}, path='/healthcheck',
accept='text/plain', method='GET',
server_port=80):
self.app = healthcheck.Healthcheck(self.application, conf)
req = webob.Request.blank(path, accept=accept, method=method)
req.server_port = server_port
res = req.get_response(self.app)
return res
def _do_test(self, conf={}, path='/healthcheck',
expected_code=webob.exc.HTTPOk.code,
expected_body=b'', accept='text/plain',
method='GET', server_port=80):
res = self._do_test_request(conf=conf, path=path,
accept=accept, method=method,
server_port=server_port)
self.assertEqual(expected_code, res.status_int)
self.assertEqual(expected_body, res.body)
def test_default_path_match(self):
self._do_test()
def test_default_path_not_match(self):
self._do_test(path='/toto', expected_body=b'Hello, World!!!')
def test_configured_path_match(self):
conf = {'path': '/hidden_healthcheck'}
self._do_test(conf, path='/hidden_healthcheck')
def test_configured_path_not_match(self):
conf = {'path': '/hidden_healthcheck'}
self._do_test(conf, path='/toto', expected_body=b'Hello, World!!!')
@mock.patch('oslo_middleware.healthcheck.disable_by_file.LOG')
def test_disablefile_unconfigured(self, fake_log):
fake_warn = fake_log.warning
conf = {'backends': 'disable_by_file'}
self._do_test(conf, expected_body=b'OK')
self.assertIn('disable_by_file', self.app._backends.names())
fake_warn.assert_called_once_with(
'DisableByFile healthcheck middleware '
'enabled without disable_by_file_path '
'set'
)
def test_disablefile_enabled(self):
conf = {'backends': 'disable_by_file',
'disable_by_file_path': '/foobar'}
self._do_test(conf, expected_body=b'OK')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disablefile_enabled_head(self):
conf = {'backends': 'disable_by_file',
'disable_by_file_path': '/foobar'}
self._do_test(conf, expected_body=b'', method='HEAD',
expected_code=webob.exc.HTTPNoContent.code)
def test_disablefile_enabled_html_detailed(self):
conf = {'backends': 'disable_by_file',
'disable_by_file_path': '/foobar', 'detailed': True}
res = self._do_test_request(conf, accept="text/html")
self.assertIn(b'Result of 1 checks:', res.body)
self.assertIn(b'<TD>OK</TD>', res.body)
self.assertEqual(webob.exc.HTTPOk.code, res.status_int)
def test_disablefile_disabled(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file',
'disable_by_file_path': filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disablefile_disabled_head(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file',
'disable_by_file_path': filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'', method='HEAD')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disablefile_disabled_html_detailed(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file',
'disable_by_file_path': filename, 'detailed': True}
res = self._do_test_request(conf, accept="text/html")
self.assertIn(b'<TD>DISABLED BY FILE</TD>', res.body)
self.assertEqual(webob.exc.HTTPServiceUnavailable.code,
res.status_int)
def test_two_backends(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_file,disable_by_file',
'disable_by_file_path': filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE\nDISABLED BY FILE')
self.assertIn('disable_by_file', self.app._backends.names())
def test_disable_by_port_file(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_files_ports',
'disable_by_file_paths': "80:%s" % filename}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE')
self.assertIn('disable_by_files_ports', self.app._backends.names())
def test_no_disable_by_port_file(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
conf = {'backends': 'disable_by_files_ports',
'disable_by_file_paths': "8000:%s" % filename}
self._do_test(conf,
expected_code=webob.exc.HTTPOk.code,
expected_body=b'OK')
self.assertIn('disable_by_files_ports', self.app._backends.names())
def test_disable_by_port_many_files(self):
filename = self.create_tempfiles([('test', 'foobar')])[0]
filename2 = self.create_tempfiles([('test2', 'foobar2')])[0]
conf = {'backends': 'disable_by_files_ports',
'disable_by_file_paths': "80:%s,81:%s" % (filename, filename2)}
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE')
self._do_test(conf,
expected_code=webob.exc.HTTPServiceUnavailable.code,
expected_body=b'DISABLED BY FILE',
server_port=81)
self.assertIn('disable_by_files_ports', self.app._backends.names())
def test_json_response(self):
expected_body = jsonutils.dumps({'detailed': False, 'reasons': []},
indent=4,
sort_keys=True).encode('utf-8')
self._do_test(expected_body=expected_body,
accept='application/json')
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