system/TestSlice.py

   1 # Thierry Parmentelat <thierry.parmentelat@inria.fr>
   2 # Copyright (C) 2010 INRIA
   3 #
   4 import utils
   5 import os, os.path
   6 import datetime
   7 import time
   8
   9 from TestKey import TestKey
  10 from TestUser import TestUser
  11 from TestNode import TestNode
  12 from TestSsh import TestSsh
  13
  14 class TestSlice:
  15
  16     def __init__ (self,test_plc,test_site,slice_spec):
  17         self.test_plc=test_plc
  18         self.test_site=test_site
  19         self.slice_spec=slice_spec
  20         self.test_ssh=TestSsh(self.test_plc.test_ssh)
  21
  22     def name(self):
  23         return self.slice_spec['slice_fields']['name']
  24
  25     def get_slice(self,slice_name):
  26         for slice_spec in self.test_plc.plc_spec['slices']:
  27             if(slice_spec['slice_fields']['name']== slice_name):
  28                 return slice_spec
  29
  30     def delete_slice(self):
  31         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  32         auth = TestUser(self,self.test_site,owner_spec).auth()
  33         slice_fields = self.slice_spec['slice_fields']
  34         slice_name = slice_fields['name']
  35         self.test_plc.apiserver.DeleteSlice(auth,slice_fields['name'])
  36         utils.header("Deleted slice %s"%slice_fields['name'])
  37
  38
  39     def create_slice(self):
  40         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  41         auth = TestUser(self,self.test_site,owner_spec).auth()
  42         slice_fields = self.slice_spec['slice_fields']
  43         slice_name = slice_fields['name']
  44
  45         self.test_plc.apiserver.AddSlice(auth,slice_fields)
  46         for username in self.slice_spec['usernames']:
  47                 user_spec=self.test_site.locate_user(username)
  48                 test_user=TestUser(self,self.test_site,user_spec)
  49                 self.test_plc.apiserver.AddPersonToSlice(auth, test_user.name(), slice_name)
  50
  51         hostnames=[]
  52         for nodename in self.slice_spec['nodenames']:
  53             node_spec=self.test_site.locate_node(nodename)
  54             test_node=TestNode(self,self.test_site,node_spec)
  55             hostnames += [test_node.name()]
  56         utils.header("Adding %r in %s"%(hostnames,slice_name))
  57         self.test_plc.apiserver.AddSliceToNodes(auth, slice_name, hostnames)
  58         if self.slice_spec.has_key('initscriptname'):
  59             isname=self.slice_spec['initscriptname']
  60             utils.header("Adding initscript %s in %s"%(isname,slice_name))
  61             self.test_plc.apiserver.AddSliceTag(self.test_plc.auth_root(), slice_name,'initscript',isname)
  62         if self.slice_spec.has_key ('vref'):
  63             vref_value=self.slice_spec['vref']
  64             self.test_plc.apiserver.AddSliceTag(self.test_plc.auth_root(), slice_name,'vref',vref_value)
  65
  66     def locate_key(self):
  67         # locate the first avail. key
  68         found=False
  69         for username in self.slice_spec['usernames']:
  70             user_spec=self.test_site.locate_user(username)
  71             for keyname in user_spec['keynames']:
  72                 key_spec=self.test_plc.locate_key(keyname)
  73                 test_key=TestKey(self.test_plc,key_spec)
  74                 publickey=test_key.publicpath()
  75                 privatekey=test_key.privatepath()
  76                 keyname=test_key.name()
  77                 if os.path.isfile(publickey) and os.path.isfile(privatekey):
  78                     found=True
  79         return (found,privatekey)
  80
  81     def check_slice(self,options,timeout_minutes=20,silent_minutes=10,period=15):
  82         timeout = datetime.datetime.now()+datetime.timedelta(minutes=timeout_minutes)
  83         graceout = datetime.datetime.now()+datetime.timedelta(minutes=silent_minutes)
  84         # locate a key
  85         (found,remote_privatekey)=self.locate_key()
  86         if not found :
  87             utils.header("WARNING: Cannot find a valid key for slice %s"%self.name())
  88             return False
  89
  90         # convert nodenames to real hostnames
  91         slice_spec = self.slice_spec
  92         restarted=[]
  93         tocheck=[]
  94         for nodename in slice_spec['nodenames']:
  95             (site_spec,node_spec) = self.test_plc.locate_node(nodename)
  96             tocheck.append(node_spec['node_fields']['hostname'])
  97
  98         utils.header("checking ssh access into slice %s on nodes %r"%(self.name(),tocheck))
  99         utils.header("max timeout is %d minutes, silent for %d minutes (period is %s)"%\
 100                          (timeout_minutes,silent_minutes,period))
 101         while tocheck:
 102             for hostname in tocheck:
 103                 (site_spec,node_spec) = self.test_plc.locate_hostname(hostname)
 104                 date_test_ssh = TestSsh (hostname,key=remote_privatekey,username=self.name())
 105                 command = date_test_ssh.actual_command("echo hostname ; hostname; echo id; id; echo uname -a ; uname -a")
 106                 date = utils.system (command, silent=datetime.datetime.now() < graceout)
 107                 if date==0:
 108                     utils.header("Successfuly entered slice %s on %s"%(self.name(),hostname))
 109                     tocheck.remove(hostname)
 110                 else:
 111                     # real nodes will have been checked once in case they're up - skip if not
 112                     if TestNode.is_real_model(node_spec['node_fields']['model']):
 113                         utils.header("WARNING : Checking slice %s on real node %s skipped"%(self.name(),hostname))
 114                         tocheck.remove(hostname)
 115                     # nm restart after first failure, if requested
 116                     if options.forcenm and hostname not in restarted:
 117                         utils.header ("forcenm option : restarting nm on %s"%hostname)
 118                         restart_test_ssh=TestSsh(hostname,key="keys/key1.rsa")
 119                         access=restart_test_ssh.actual_command('service nm restart')
 120                         if (access==0):
 121                             utils.header('nm restarted on %s'%hostname)
 122                         else:
 123                             utils.header('Failed to restart nm on %s'%(hostname))
 124                         restarted.append(hostname)
 125             if not tocheck:
 126                 # we're done
 127                 return True
 128             if datetime.datetime.now() > timeout:
 129                 for hostname in tocheck:
 130                     utils.header("FAILURE to ssh into %s@%s"%(self.name(),hostname))
 131                 return False
 132             # wait for the period
 133             time.sleep (period)
 134         # for an empty slice
 135         return True