diff options
Diffstat (limited to 'tests/inspector')
| -rw-r--r-- | tests/inspector/__init__.py | 37 | ||||
| -rw-r--r-- | tests/inspector/base.py | 30 | ||||
| -rw-r--r-- | tests/inspector/sample.py | 151 |
3 files changed, 218 insertions, 0 deletions
diff --git a/tests/inspector/__init__.py b/tests/inspector/__init__.py new file mode 100644 index 00000000..35bdb5b9 --- /dev/null +++ b/tests/inspector/__init__.py @@ -0,0 +1,37 @@ +############################################################################# +# Copyright (c) 2017 ZTE Corporation and others. +# +# All rights reserved. This program and the accompanying materials +# are made available under the terms of the Apache License, Version 2.0 +# which accompanies this distribution, and is available at +# http://www.apache.org/licenses/LICENSE-2.0 +############################################################################## +import os + +from oslo_config import cfg +from oslo_utils import importutils + +OPTS = [ + cfg.StrOpt('type', + default=os.environ.get('INSPECTOR_TYPE', 'sample'), + choices=['sample', 'congress', 'vitrage'], + help='the component of doctor inspector', + required=True), + cfg.StrOpt('ip', + default='127.0.0.1', + help='the ip of default inspector', + required=False), + cfg.StrOpt('port', + default='12345', + help='the port of default for inspector', + required=False), +] + + +_inspector_name_class_mapping = { + 'sample': 'inspector.sample.SampleInspector', +} + +def get_inspector(conf, log): + inspector_class = _inspector_name_class_mapping[conf.inspector.type] + return importutils.import_object(inspector_class, conf, log) diff --git a/tests/inspector/base.py b/tests/inspector/base.py new file mode 100644 index 00000000..854f0695 --- /dev/null +++ b/tests/inspector/base.py @@ -0,0 +1,30 @@ +############################################################################## +# Copyright (c) 2017 ZTE Corporation and others. +# +# All rights reserved. This program and the accompanying materials +# are made available under the terms of the Apache License, Version 2.0 +# which accompanies this distribution, and is available at +# http://www.apache.org/licenses/LICENSE-2.0 +############################################################################## +import abc +import six + + +@six.add_metaclass(abc.ABCMeta) +class BaseInspector(object): + + def __init__(self, conf, log): + self.conf = conf + self.log = log + + @abc.abstractmethod + def get_inspector_url(self): + pass + + @abc.abstractmethod + def start(self): + pass + + @abc.abstractmethod + def stop(self): + pass
\ No newline at end of file diff --git a/tests/inspector/sample.py b/tests/inspector/sample.py new file mode 100644 index 00000000..db477de9 --- /dev/null +++ b/tests/inspector/sample.py @@ -0,0 +1,151 @@ +############################################################################## +# Copyright (c) 2017 ZTE Corporation and others. +# +# All rights reserved. This program and the accompanying materials +# are made available under the terms of the Apache License, Version 2.0 +# which accompanies this distribution, and is available at +# http://www.apache.org/licenses/LICENSE-2.0 +############################################################################## +import collections +from flask import Flask +from flask import request +import json +import time +from threading import Thread +import requests + +from identity_auth import get_identity_auth +from identity_auth import get_session +from os_clients import nova_client +from inspector.base import BaseInspector + + +class SampleInspector(BaseInspector): + event_type = 'compute.host.down' + + def __init__(self, conf, log): + super(SampleInspector, self).__init__(conf, log) + self.inspector_url = self.get_inspector_url() + self.novaclients = list() + self._init_novaclients() + # Normally we use this client for non redundant API calls + self.nova = self.novaclients[0] + + self.servers = collections.defaultdict(list) + self.hostnames = list() + self.app = None + + def _init_novaclients(self): + self.NUMBER_OF_CLIENTS = self.conf.instance_count + auth = get_identity_auth(project=self.conf.doctor_project) + session = get_session(auth=auth) + for i in range(self.NUMBER_OF_CLIENTS): + self.novaclients.append( + nova_client(self.conf.nova_version, session)) + + def _init_servers_list(self): + self.servers.clear() + opts = {'all_tenants': True} + servers = self.nova.servers.list(search_opts=opts) + for server in servers: + try: + host = server.__dict__.get('OS-EXT-SRV-ATTR:host') + self.servers[host].append(server) + self.log.debug('get hostname=%s from server=%s' % (host, server)) + except Exception as e: + self.log.info('can not get hostname from server=%s' % server) + + def get_inspector_url(self): + return 'http://%s:%s' % (self.conf.inspector.ip, self.conf.inspector.port) + + def start(self): + self.log.info('sample inspector start......') + self._init_servers_list() + self.app = InspectorApp(self.conf.inspector.port, self, self.log) + self.app.start() + + def stop(self): + self.log.info('sample inspector stop......') + if not self.app: + return + for hostname in self.hostnames: + self.nova.services.force_down(hostname, 'nova-compute', False) + + headers = { + 'Content-Type': 'application/json', + 'Accept': 'application/json', + } + url = '%s%s' % (self.inspector_url, 'shutdown') \ + if self.inspector_url.endswith('/') else \ + '%s%s' % (self.inspector_url, '/shutdown') + requests.post(url, data='', headers=headers) + + def handle_events(self, events): + for event in events: + hostname = event['details']['hostname'] + event_type = event['type'] + if event_type == self.event_type: + self.hostnames.append(hostname) + self.disable_compute_host(hostname) + + def disable_compute_host(self, hostname): + threads = [] + if len(self.servers[hostname]) > self.NUMBER_OF_CLIENTS: + # TODO(tojuvone): This could be enhanced in future with dynamic + # reuse of self.novaclients when all threads in use + self.log.error('%d servers in %s. Can handle only %d'%( + self.servers[hostname], hostname, self.NUMBER_OF_CLIENTS)) + for nova, server in zip(self.novaclients, self.servers[hostname]): + t = ThreadedResetState(nova, "error", server, self.log) + t.start() + threads.append(t) + for t in threads: + t.join() + self.nova.services.force_down(hostname, 'nova-compute', True) + self.log.info('doctor mark host(%s) down at %s' % (hostname, time.time())) + + +class ThreadedResetState(Thread): + + def __init__(self, nova, state, server, log): + Thread.__init__(self) + self.nova = nova + self.state = state + self.server = server + self.log = log + + def run(self): + self.nova.servers.reset_state(self.server, self.state) + self.log.info('doctor mark vm(%s) error at %s' % (self.server, time.time())) + + +class InspectorApp(Thread): + + def __init__(self, port, inspector, log): + Thread.__init__(self) + self.port = port + self.inspector = inspector + self.log = log + + def run(self): + app = Flask('inspector') + + @app.route('/events', methods=['PUT']) + def event_posted(): + self.log.info('event posted in sample inspector at %s' % time.time()) + self.log.info('sample inspector = %s' % self.inspector) + self.log.info('sample inspector received data = %s' % request.data) + events = json.loads(request.data) + self.inspector.handle_events(events) + return "OK" + + @app.route('/shutdown', methods=['POST']) + def shutdown(): + self.log.info('shutdown inspector app server at %s' % time.time()) + func = request.environ.get('werkzeug.server.shutdown') + if func is None: + raise RuntimeError('Not running with the Werkzeug Server') + func() + return 'inspector app shutting down...' + + app.run(host="0.0.0.0", port=self.port) |