+ def get_host_info_for_random_vm(self):
+ num = random.randint(0, self.conf.instance_count - 1)
+ vm_name = "%s%d" % (self.conf.instance_basename, num)
+
+ servers = \
+ {getattr(server, 'name'): server
+ for server in self.nova.servers.list()}
+ server = servers.get(vm_name)
+ if not server:
+ raise \
+ Exception('Can not find instance: vm_name(%s)' % vm_name)
+ host_name = server.__dict__.get('OS-EXT-SRV-ATTR:hypervisor_hostname')
+ host_ip = self.installer.get_host_ip_from_hostname(host_name)
+
+ LOG.info('Get host info(name:%s, ip:%s) which vm(%s) launched at'
+ % (host_name, host_ip, vm_name))
+ return Host(host_name, host_ip)
+
+ def check_host_status(self, hostname, state):
+ service = self.nova.services.list(host=hostname, binary='nova-compute')
+ host_state = service[0].__dict__.get('state')
+ assert host_state == state
+
+ def unset_forced_down_hosts(self):
+ if self.down_host:
+ self.nova.services.force_down(self.down_host.name, 'nova-compute', False)
+ time.sleep(2)
+ self.check_host_status(self.down_host.name, 'up')
+