system/TestSlice.py

   1 import utils
   2 import os, os.path
   3 import datetime
   4 import time
   5
   6 from TestKey import TestKey
   7 from TestUser import TestUser
   8 from TestNode import TestNode
   9
  10 class TestSlice:
  11
  12     def __init__ (self,test_plc,test_site,slice_spec):
  13         self.test_plc=test_plc
  14         self.test_site=test_site
  15         self.slice_spec=slice_spec
  16
  17     def name(self):
  18         return self.slice_spec['slice_fields']['name']
  19
  20     def delete_slice(self):
  21         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  22         auth = TestUser(self,self.test_site,owner_spec).auth()
  23         slice_fields = self.slice_spec['slice_fields']
  24         slice_name = slice_fields['name']
  25         self.test_plc.server.DeleteSlice(auth,slice_fields['name'])
  26         utils.header("Deleted slice %s"%slice_fields['name'])
  27
  28
  29     def create_slice(self):
  30         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  31         auth = TestUser(self,self.test_site,owner_spec).auth()
  32         slice_fields = self.slice_spec['slice_fields']
  33         slice_name = slice_fields['name']
  34
  35         self.test_plc.server.AddSlice(auth,slice_fields)
  36         for username in self.slice_spec['usernames']:
  37                 user_spec=self.test_site.locate_user(username)
  38                 test_user=TestUser(self,self.test_site,user_spec)
  39                 self.test_plc.server.AddPersonToSlice(auth, test_user.name(), slice_name)
  40
  41         hostnames=[]
  42         for nodename in self.slice_spec['nodenames']:
  43             node_spec=self.test_site.locate_node(nodename)
  44             test_node=TestNode(self,self.test_site,node_spec)
  45             hostnames += [test_node.name()]
  46         utils.header("Adding %r in %s"%(hostnames,slice_name))
  47         self.test_plc.server.AddSliceToNodes(auth, slice_name, hostnames)
  48         if self.slice_spec.has_key('initscriptname'):
  49             isname=self.slice_spec['initscriptname']
  50             utils.header("Adding initscript %s in %s"%(isname,slice_name))
  51             self.test_plc.server.AddSliceAttribute(self.test_plc.auth_root(), slice_name,'initscript',isname)
  52
  53     def clear_known_hosts (self):
  54         utils.header("Messing with known_hosts for slice %s"%self.name())
  55         # scan nodenames
  56         for nodename in self.slice_spec['nodenames']:
  57             self.test_plc.run_in_guest("sed -i -e '/^%s/d' /root/.ssh/known_hosts"%nodename)
  58
  59     ###the logic is quit wrong, must be rewritten
  60     def do_check_slices(self):
  61         # Do not wait here, as this step can be run directly in which case you don't want to wait
  62         # just add the 5 minutes to the overall timeout
  63         #utils.header("Waiting for the nodes to fully boot")
  64         #time.sleep(300)
  65         bool=bool1=True
  66         secondes=15
  67         self.test_plc.clear_ssh_config()
  68         self.clear_known_hosts()
  69         start_time = datetime.datetime.now()
  70         dead_time=start_time + datetime.timedelta(minutes=11)
  71         for slice_spec in self.test_plc.plc_spec['slices']:
  72             for hostname in slice_spec['nodenames']:
  73                 slicename=slice_spec['slice_fields']['name']
  74                 # locate the first avail. key
  75                 found=False
  76                 for username in slice_spec['usernames']:
  77                     user_spec=self.test_site.locate_user(username)
  78                     for keyname in user_spec['keynames']:
  79                         key_spec=self.test_plc.locate_key(keyname)
  80                         publickey=TestKey(self.test_plc,key_spec).publicpath()
  81                         privatekey=TestKey(self.test_plc,key_spec).privatepath()
  82                         if os.path.isfile(publickey) and os.path.isfile(privatekey):
  83                             found=True
  84                             break
  85                 if not found:
  86                     raise Exception,"Cannot find a valid key for slice %s"%slicename
  87
  88                 while(bool):
  89                     utils.header('restarting nm on %s'%hostname)
  90                     access=self.test_plc.run_in_guest('ssh -i /etc/planetlab/root_ssh_key.rsa root@%s service nm restart'%hostname )
  91                     if (access==0):
  92                         utils.header('nm restarted on %s'%hostname)
  93                         while(bool1):
  94                             utils.header('trying to connect to %s@%s'%(slicename,hostname))
  95                             Date=utils.system('ssh -i %s %s@%s date'%(privatekey,slicename,hostname))
  96                             if (Date==0):
  97                                 break
  98                             elif ( start_time  <= dead_time ) :
  99                                 start_time=datetime.datetime.now()+ datetime.timedelta(seconds=30)
 100                                 time.sleep(secondes)
 101                             else:
 102                                 bool1=False
 103                         if(bool1):
 104                             utils.header('connected to %s@%s -->'%(slicename,hostname))
 105                         else:
 106                             utils.header('%s@%s : last chance - restarting nm on %s'%(slicename,hostname,hostname))
 107                             access=utils.system('ssh -i /etc/planetlab/root_ssh_key.rsa  root@%s service nm restart'%hostname)
 108                             time.sleep(240)##temoprally adding some delay due to the network slowness
 109                             if (access==0):
 110                                 utils.header('trying to connect (2) to %s@%s'%(slicename,hostname))
 111                                 Date=utils.system('ssh -i %s %s@%s date'%(privatekey,slicename,hostname))
 112                                 if (Date==0):
 113                                     utils.header('connected to %s@%s -->'%(slicename,hostname))
 114                                 else:
 115                                     utils.header('giving up with to %s@%s -->'%(slicename,hostname))
 116                                     return False
 117                             else :
 118                                 utils.header('Last chance failed on %s@%s -->'%(slicename,hostname))
 119                         break
 120                     elif ( start_time  <= dead_time ) :
 121                         start_time=datetime.datetime.now()+ datetime.timedelta(minutes=1)
 122                         time.sleep(secondes)
 123                     else:
 124                         bool=False
 125
 126         return bool
 127