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# Copyright 2014 Microsoft Corporation
#
# 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.
#
# Requires Python 2.4+ and Openssl 1.0+
#
import unittest
import azurelinuxagent.common.protocol.restapi as restapi
import azurelinuxagent.common.protocol.wire as wire
import azurelinuxagent.common.protocol.hostplugin as hostplugin
from tests.protocol.mockwiredata import WireProtocolData, DATA_FILE
from tests.tools import *
wireserver_url = "168.63.129.16"
sas_url = "http://sas_url"
testtype = 'BlockBlob'
api_versions = '["2015-09-01"]'
class TestHostPlugin(AgentTestCase):
def test_fallback(self):
"""
Validate fallback to upload status using HostGAPlugin is happening when status reporting via
default method is unsuccessful
"""
test_goal_state = wire.GoalState(WireProtocolData(DATA_FILE).goal_state)
with patch.object(wire.HostPluginProtocol, "put_vm_status") as patch_put:
with patch.object(wire.StatusBlob, "upload", return_value=False) as patch_upload:
wire_protocol_client = wire.WireProtocol(wireserver_url).client
wire_protocol_client.get_goal_state = Mock(return_value=test_goal_state)
wire_protocol_client.ext_conf = wire.ExtensionsConfig(None)
wire_protocol_client.ext_conf.status_upload_blob = sas_url
wire_protocol_client.upload_status_blob()
self.assertTrue(patch_put.call_count == 1,
"Fallback was not engaged")
self.assertTrue(patch_put.call_args[0][1] == sas_url)
def test_validate_http_request(self):
"""Validate correct set of data is sent to HostGAPlugin when reporting VM status"""
from azurelinuxagent.common.protocol.hostplugin import API_VERSION
from azurelinuxagent.common.utils import restutil
exp_method = 'PUT'
exp_url = 'http://{0}:32526/status'.format(wireserver_url)
exp_data = '{"content": "eyJkdW1teSI6ICJkYXRhIn0=", "headers": [{"headerName": ' \
'"x-ms-version", "headerValue": "2014-02-14"}, ' \
'{"headerName": "x-ms-blob-type", "headerValue": "BlockBlob"}], ' \
'"requestUri": "http://sas_url"}'
test_goal_state = wire.GoalState(WireProtocolData(DATA_FILE).goal_state)
with patch.object(restutil, "http_request") as patch_http:
wire_protocol_client = wire.WireProtocol(wireserver_url).client
wire_protocol_client.get_goal_state = Mock(return_value=test_goal_state)
plugin = wire_protocol_client.get_host_plugin()
blob = wire_protocol_client.status_blob
blob.vm_status = restapi.VMStatus()
blob.data = '{"dummy": "data"}'
with patch.object(plugin, 'get_api_versions') as patch_api:
patch_api.return_value = API_VERSION
plugin.put_vm_status(blob, sas_url, testtype)
self.assertTrue(patch_http.call_count == 1)
self.assertTrue(patch_http.call_args[0][0] == exp_method)
self.assertTrue(patch_http.call_args[0][1] == exp_url)
self.assertTrue(patch_http.call_args[0][2] == exp_data)
# Assert headers
headers = patch_http.call_args[1]['headers']
self.assertEqual(headers['x-ms-containerid'], test_goal_state.container_id)
self.assertEqual(headers['x-ms-host-config-name'], test_goal_state.role_config_name)
def test_no_fallback(self):
"""
Validate fallback to upload status using HostGAPlugin is not happening when status reporting via
default method is successful
"""
with patch.object(wire.HostPluginProtocol,
"put_vm_status") as patch_put:
with patch.object(wire.StatusBlob, "upload") as patch_upload:
patch_upload.return_value = True
wire_protocol_client = wire.WireProtocol(wireserver_url).client
wire_protocol_client.ext_conf = wire.ExtensionsConfig(None)
wire_protocol_client.ext_conf.status_upload_blob = sas_url
wire_protocol_client.upload_status_blob()
self.assertTrue(patch_put.call_count == 0,
"Fallback was engaged")
def test_validate_http_put(self):
"""Validate correct set of data is sent to HostGAPlugin when reporting VM status"""
test_goal_state = wire.GoalState(WireProtocolData(DATA_FILE).goal_state)
expected_url = "http://168.63.129.16:32526/status"
expected_headers = {'x-ms-version': '2015-09-01',
"Content-type": "application/json",
"x-ms-containerid": test_goal_state.container_id,
"x-ms-host-config-name": test_goal_state.role_config_name}
expected_content = '{"content": "eyJkdW1teSI6ICJkYXRhIn0=", ' \
'"headers": [{"headerName": "x-ms-version", ' \
'"headerValue": "2014-02-14"}, ' \
'{"headerName": "x-ms-blob-type", "headerValue": ' \
'"BlockBlob"}], ' \
'"requestUri": "http://sas_url"}'
host_client = wire.HostPluginProtocol(wireserver_url,
test_goal_state.container_id,
test_goal_state.role_config_name)
self.assertFalse(host_client.is_initialized)
self.assertTrue(host_client.api_versions is None)
status_blob = wire.StatusBlob(None)
status_blob.vm_status = restapi.VMStatus()
status_blob.data = '{"dummy": "data"}'
status_blob.type = "BlockBlob"
with patch.object(wire.HostPluginProtocol,
"get_api_versions") as patch_get:
patch_get.return_value = api_versions
with patch.object(restapi.restutil, "http_put") as patch_put:
patch_put.return_value = MagicMock()
host_client.put_vm_status(status_blob, sas_url)
self.assertTrue(host_client.is_initialized)
self.assertFalse(host_client.api_versions is None)
self.assertTrue(patch_put.call_count == 1)
self.assertTrue(patch_put.call_args[0][0] == expected_url)
self.assertTrue(patch_put.call_args[1]['data'] == expected_content)
self.assertTrue(patch_put.call_args[1]['headers'] == expected_headers)
def test_validate_get_extension_artifacts(self):
test_goal_state = wire.GoalState(WireProtocolData(DATA_FILE).goal_state)
expected_url = hostplugin.URI_FORMAT_GET_EXTENSION_ARTIFACT.format(wireserver_url, hostplugin.HOST_PLUGIN_PORT)
expected_headers = {'x-ms-version': '2015-09-01',
"x-ms-containerid": test_goal_state.container_id,
"x-ms-host-config-name": test_goal_state.role_config_name,
"x-ms-artifact-location": sas_url}
host_client = wire.HostPluginProtocol(wireserver_url,
test_goal_state.container_id,
test_goal_state.role_config_name)
self.assertFalse(host_client.is_initialized)
self.assertTrue(host_client.api_versions is None)
with patch.object(wire.HostPluginProtocol, "get_api_versions", return_value=api_versions) as patch_get:
actual_url, actual_headers = host_client.get_artifact_request(sas_url)
self.assertTrue(host_client.is_initialized)
self.assertFalse(host_client.api_versions is None)
self.assertEqual(expected_url, actual_url)
for k in expected_headers:
self.assertTrue(k in actual_headers)
self.assertEqual(expected_headers[k], actual_headers[k])
class MockResponse:
def __init__(self, body, status_code):
self.body = body
self.status = status_code
def read(self):
return self.body
if __name__ == '__main__':
unittest.main()
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