Merge "fix package path and move files under doctor_tests"

4 files changed, 333 insertions, 0 deletions

diff --git a/doctor_tests/inspector/__init__.py b/doctor_tests/inspector/__init__.py
new file mode 100644
index 00000000..3be79e57
--- /dev/null
+++ b/doctor_tests/inspector/__init__.py
@@ -0,0 +1,40 @@
+#############################################################################
+# 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 host ip of inspector',
+               required=False),
+    cfg.StrOpt('port',
+               default='12345',
+               help='the port of default for inspector',
+               required=False),
+]
+
+
+_inspector_name_class_mapping = {
+    'sample': 'doctor_tests.inspector.sample.SampleInspector',
+    'congress': 'doctor_tests.inspector.congress.CongressInspector',
+}
+
+
+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/doctor_tests/inspector/base.py b/doctor_tests/inspector/base.py
new file mode 100644
index 00000000..854f0695
--- /dev/null
+++ b/doctor_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/doctor_tests/inspector/congress.py b/doctor_tests/inspector/congress.py
new file mode 100644
index 00000000..c89a41bd
--- /dev/null
+++ b/doctor_tests/inspector/congress.py
@@ -0,0 +1,94 @@
+##############################################################################
+# 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
+##############################################################################
+from doctor_tests.identity_auth import get_identity_auth
+from doctor_tests.identity_auth import get_session
+from doctor_tests.os_clients import congress_client
+
+from doctor_tests.inspector.base import BaseInspector
+
+
+class CongressInspector(BaseInspector):
+    nova_api_min_version = '2.11'
+    doctor_driver = 'doctor'
+    doctor_datasource = 'doctor'
+    policy = 'classification'
+    rules = {
+        'host_down':
+            'host_down(host) :- doctor:events(hostname=host, type="compute.host.down", status="down")',
+        'active_instance_in_host':
+            'active_instance_in_host(vmid, host) :- nova:servers(id=vmid, host_name=host, status="ACTIVE")',
+        'host_force_down':
+            'execute[nova:services.force_down(host, "nova-compute", "True")] :- host_down(host)',
+        'error_vm_states':
+            'execute[nova:servers.reset_state(vmid, "error")] :- host_down(host), active_instance_in_host(vmid, host)'
+    }
+
+    def __init__(self, conf, log):
+        super(CongressInspector, self).__init__(conf, log)
+        self.auth = get_identity_auth()
+        self.congress = congress_client(get_session(auth=self.auth))
+        self._init_driver_and_ds()
+        self.inspector_url = self.get_inspector_url()
+
+    def _init_driver_and_ds(self):
+        datasources = \
+            {ds['name']: ds for ds in self.congress.list_datasources()['results']}
+
+        # check nova_api version
+        nova_api_version = datasources['nova']['config'].get('api_version')
+        if nova_api_version and nova_api_version < self.nova_api_min_version:
+            raise Exception('Congress Nova datasource API version < nova_api_min_version(%s)'
+                            % self.nova_api_min_version)
+
+        # create doctor datasource if it's not exist
+        if self.doctor_datasource not in datasources:
+            self.congress.create_datasource(
+                body={'driver': self.doctor_driver,
+                      'name': self.doctor_datasource})
+
+        # check whether doctor driver exist
+        drivers = \
+            {driver['id']: driver for driver in self.congress.list_drivers()['results']}
+        if self.doctor_driver not in drivers:
+            raise Exception('Do not support doctor driver in congress')
+
+        self.policy_rules = \
+            {rule['name']: rule for rule in
+             self.congress.list_policy_rules(self.policy)['results']}
+
+    def get_inspector_url(self):
+        ds = self.congress.list_datasources()['results']
+        doctor_ds = next((item for item in ds if item['driver'] == 'doctor'),
+                         None)
+        congress_endpoint = self.congress.httpclient.get_endpoint(auth=self.auth)
+        return ('%s/v1/data-sources/%s/tables/events/rows' %
+                (congress_endpoint, doctor_ds['id']))
+
+    def start(self):
+        self.log.info('congress inspector start......')
+
+        for rule_name, rule in self.rules.items():
+            self._add_rule(rule_name, rule)
+
+    def stop(self):
+        self.log.info('congress inspector stop......')
+
+        for rule_name in self.rules.keys():
+            self._del_rule(rule_name)
+
+    def _add_rule(self, rule_name, rule):
+        if rule_name not in self.policy_rules:
+            self.congress.create_policy_rule(self.policy,
+                                             body={'name': rule_name,
+                                                   'rule': rule})
+
+    def _del_rule(self, rule_name):
+        if rule_name in self.policy_rules:
+            rule_id = self.policy_rules[rule_name]['id']
+            self.congress.delete_policy_rule(self.policy, rule_id)
diff --git a/doctor_tests/inspector/sample.py b/doctor_tests/inspector/sample.py
new file mode 100644
index 00000000..114e4ebd
--- /dev/null
+++ b/doctor_tests/inspector/sample.py
@@ -0,0 +1,169 @@
+##############################################################################
+# 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)