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-rw-r--r--doctor_tests/inspector/sample.py169
1 files changed, 169 insertions, 0 deletions
diff --git a/doctor_tests/inspector/sample.py b/doctor_tests/inspector/sample.py
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+##############################################################################
+# 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 doctor_tests.common import utils
+from doctor_tests.identity_auth import get_identity_auth
+from doctor_tests.identity_auth import get_session
+from doctor_tests.os_clients import nova_client
+from doctor_tests.os_clients import neutron_client
+from doctor_tests.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]
+
+ auth = get_identity_auth(project=self.conf.doctor_project)
+ session = get_session(auth=auth)
+ self.neutron = neutron_client(session)
+
+ 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)
+ thr1 = self._disable_compute_host(hostname)
+ thr2 = self._vms_reset_state('error', hostname)
+ thr3 = self._set_ports_data_plane_status('DOWN', hostname)
+ thr1.join()
+ thr2.join()
+ thr3.join()
+
+ @utils.run_async
+ def _disable_compute_host(self, hostname):
+ self.nova.services.force_down(hostname, 'nova-compute', True)
+ self.log.info('doctor mark host(%s) down at %s' % (hostname, time.time()))
+
+ @utils.run_async
+ def _vms_reset_state(self, state, hostname):
+
+ @utils.run_async
+ def _vm_reset_state(nova, server, state):
+ nova.servers.reset_state(server, state)
+ self.log.info('doctor mark vm(%s) error at %s' % (server, time.time()))
+
+ thrs = []
+ for nova, server in zip(self.novaclients, self.servers[hostname]):
+ t = _vm_reset_state(nova, server, state)
+ thrs.append(t)
+ for t in thrs:
+ t.join()
+
+ @utils.run_async
+ def _set_ports_data_plane_status(self, status, hostname):
+ body = {'data_plane_status': status}
+
+ @utils.run_async
+ def _set_port_data_plane_status(port_id):
+ self.neutron.update_port(port_id, body)
+ self.log.info('doctor set data plane status %s on port %s' % (status, port_id))
+
+ thrs = []
+ params = {'binding:host_id': hostname}
+ for port_id in self.neutron.list_ports(**params):
+ t = _set_port_data_plane_status(port_id)
+ thrs.append(t)
+ for t in thrs:
+ t.join()
+
+
+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.decode('utf8'))
+ 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)