system/TestSlice.py

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