From e6708c869855ab69f9b53959befd82bb2f32f9ad Mon Sep 17 00:00:00 2001
From: Tomi Juvonen <tomi.juvonen@nokia.com>
Date: Wed, 28 Nov 2018 11:48:27 +0200
Subject: Bug - Testing in Apex with OpenStack master fails

Support yet another path to find config files.
Tune config changes to take effect properly for maintenance.
transport_url parcing enhanced.
Nova reset state to error takes well over 1 second these days
and at the end it then sends notification that we use.
Only reasonable thing is to send notification straight from
the Inspector as it should have been done in the first place.
Now we can do 200ms as total time, with just a few millisends
actuallly spent on sending the notification. Further one
could improve this by having node specific Inspector agent to
react even in more Telco grade speed.

Change-Id: I787f8e9dd6484842c6c568b15767018d11b36862
Signed-off-by: Tomi Juvonen <tomi.juvonen@nokia.com>
---
 doctor_tests/inspector/sample.py | 44 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

(limited to 'doctor_tests/inspector/sample.py')

diff --git a/doctor_tests/inspector/sample.py b/doctor_tests/inspector/sample.py
index a55a12b7..baf0306f 100644
--- a/doctor_tests/inspector/sample.py
+++ b/doctor_tests/inspector/sample.py
@@ -10,6 +10,7 @@ import collections
 from flask import Flask
 from flask import request
 import json
+import oslo_messaging
 import time
 from threading import Thread
 import requests
@@ -26,7 +27,7 @@ from doctor_tests.inspector.base import BaseInspector
 class SampleInspector(BaseInspector):
     event_type = 'compute.host.down'
 
-    def __init__(self, conf, log):
+    def __init__(self, conf, log, trasport_url):
         super(SampleInspector, self).__init__(conf, log)
         self.inspector_url = self.get_inspector_url()
         self.novaclients = list()
@@ -43,6 +44,17 @@ class SampleInspector(BaseInspector):
         self.hostnames = list()
         self.app = None
 
+        try:
+            transport = oslo_messaging.get_notification_transport(self.conf,
+                                                                  trasport_url)
+            self.notif = oslo_messaging.Notifier(transport,
+                                                 'compute.instance.update',
+                                                 driver='messaging',
+                                                 topics=['notifications'])
+            self.notif = self.notif.prepare(publisher_id='sample')
+        except:
+            self.notif = None
+
     def _init_novaclients(self):
         self.NUMBER_OF_CLIENTS = self.conf.instance_count
         auth = get_identity_auth(project=self.conf.doctor_project)
@@ -54,7 +66,7 @@ class SampleInspector(BaseInspector):
     def _init_servers_list(self):
         self.servers.clear()
         opts = {'all_tenants': True}
-        servers = self.nova.servers.list(search_opts=opts)
+        servers = self.nova.servers.list(detailed=True, search_opts=opts)
         for server in servers:
             try:
                 host = server.__dict__.get('OS-EXT-SRV-ATTR:host')
@@ -97,10 +109,14 @@ class SampleInspector(BaseInspector):
             event_type = event['type']
             if event_type == self.event_type:
                 self.hostnames.append(hostname)
+                if self.notif is not None:
+                    thr0 = self._send_notif(hostname)
                 thr1 = self._disable_compute_host(hostname)
                 thr2 = self._vms_reset_state('error', hostname)
                 if self.conf.inspector.update_neutron_port_dp_status:
                     thr3 = self._set_ports_data_plane_status('DOWN', hostname)
+                if self.notif is not None:
+                    thr0.join()
                 thr1.join()
                 thr2.join()
                 if self.conf.inspector.update_neutron_port_dp_status:
@@ -156,8 +172,8 @@ class SampleInspector(BaseInspector):
             nova.servers.reset_state(server, state)
             vmdown_time = time.time()
             self.vm_down_time = vmdown_time
-            self.log.info('doctor mark vm(%s) error at %s'
-                          % (server, vmdown_time))
+            self.log.info('doctor mark vm(%s) %s at %s'
+                          % (server, state, vmdown_time))
 
         thrs = []
         for nova, server in zip(self.novaclients, self.servers[hostname]):
@@ -166,6 +182,26 @@ class SampleInspector(BaseInspector):
         for t in thrs:
             t.join()
 
+    @utils.run_async
+    def _send_notif(self, hostname):
+
+        @utils.run_async
+        def _send_notif(server):
+            payload = dict(tenant_id=server.tenant_id,
+                           instance_id=server.id,
+                           state="error")
+            self.notif.info({'some': 'context'}, 'compute.instance.update',
+                            payload)
+            self.log.info('doctor compute.instance.update vm(%s) error %s'
+                          % (server, time.time()))
+
+        thrs = []
+        for server in self.servers[hostname]:
+            t = _send_notif(server)
+            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}
-- 
cgit 1.2.3-korg