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# Microsoft Azure Linux Agent
#
# 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 json
from azurelinuxagent.future import httpclient, text
import azurelinuxagent.utils.restutil as restutil
from azurelinuxagent.protocol.common import *
ENDPOINT='169.254.169.254'
#TODO use http for azure pack test
#ENDPOINT='localhost'
APIVERSION='2015-05-01-preview'
BASE_URI = "http://{0}/Microsoft.Compute/{1}?api-version={2}{3}"
def _add_content_type(headers):
if headers is None:
headers = {}
headers["content-type"] = "application/json"
return headers
class MetadataProtocol(Protocol):
def __init__(self, apiversion=APIVERSION, endpoint=ENDPOINT):
self.apiversion = apiversion
self.endpoint = endpoint
self.identity_uri = BASE_URI.format(self.endpoint, "identity",
self.apiversion, "&$expand=*")
self.cert_uri = BASE_URI.format(self.endpoint, "certificates",
self.apiversion, "&$expand=*")
self.ext_uri = BASE_URI.format(self.endpoint, "extensionHandlers",
self.apiversion, "&$expand=*")
self.provision_status_uri = BASE_URI.format(self.endpoint,
"provisioningStatus",
self.apiversion, "")
self.vm_status_uri = BASE_URI.format(self.endpoint, "status/vmagent",
self.apiversion, "")
self.ext_status_uri = BASE_URI.format(self.endpoint,
"status/extensions/{0}",
self.apiversion, "")
self.event_uri = BASE_URI.format(self.endpoint, "status/telemetry",
self.apiversion, "")
def _get_data(self, url, headers=None):
try:
resp = restutil.http_get(url, headers=headers)
except restutil.HttpError as e:
raise ProtocolError(text(e))
if resp.status != httpclient.OK:
raise ProtocolError("{0} - GET: {1}".format(resp.status, url))
data = resp.read()
if data is None:
return None
data = json.loads(text(data, encoding="utf-8"))
return data
def _put_data(self, url, data, headers=None):
headers = _add_content_type(headers)
try:
resp = restutil.http_put(url, json.dumps(data), headers=headers)
except restutil.HttpError as e:
raise ProtocolError(text(e))
if resp.status != httpclient.OK:
raise ProtocolError("{0} - PUT: {1}".format(resp.status, url))
def _post_data(self, url, data, headers=None):
headers = _add_content_type(headers)
try:
resp = restutil.http_post(url, json.dumps(data), headers=headers)
except restutil.HttpError as e:
raise ProtocolError(text(e))
if resp.status != httpclient.CREATED:
raise ProtocolError("{0} - POST: {1}".format(resp.status, url))
def initialize(self):
pass
def get_vminfo(self):
vminfo = VMInfo()
data = self._get_data(self.identity_uri)
set_properties("vminfo", vminfo, data)
return vminfo
def get_certs(self):
#TODO download and save certs
return CertList()
def get_ext_handlers(self):
ext_list = ExtHandlerList()
data = self._get_data(self.ext_uri)
set_properties("extensionHandlers", ext_list.extHandlers, data)
return ext_list
def get_ext_handler_pkgs(self, ext_handler):
ext_handler_pkgs = ExtHandlerPackageList()
data = None
for version_uri in ext_handler.versionUris:
try:
data = self._get_data(version_uri.uri)
break
except ProtocolError as e:
logger.warn("Failed to get version uris: {0}", e)
logger.info("Retry getting version uris")
set_properties("extensionPackages", ext_handler_pkgs, data)
return ext_handler_pkgs
def report_provision_status(self, provision_status):
validata_param('provisionStatus', provision_status, ProvisionStatus)
data = get_properties(provision_status)
self._put_data(self.provision_status_uri, data)
def report_vm_status(self, vm_status):
validata_param('vmStatus', vm_status, VMStatus)
data = get_properties(vm_status)
self._put_data(self.vm_status_uri, data)
def report_ext_status(self, ext_handler_name, ext_name, ext_status):
validata_param('extensionStatus', ext_status, ExtensionStatus)
data = get_properties(ext_status)
uri = self.ext_status_uri.format(ext_name)
self._put_data(uri, data)
def report_event(self, events):
#TODO disable telemetry for azure stack test
#validata_param('events', events, TelemetryEventList)
#data = get_properties(events)
#self._post_data(self.event_uri, data)
pass
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