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     def locate_key(self,slice_spec):
  60         # locate the first avail. key
  61         found=False
  62         for username in slice_spec['usernames']:
  63             user_spec=self.test_site.locate_user(username)
  64             for keyname in user_spec['keynames']:
  65                 key_spec=self.test_plc.locate_key(keyname)
  66                 test_key=TestKey(self.test_plc,key_spec)
  67                 publickey=test_key.publicpath()
  68                 privatekey=test_key.privatepath()
  69                 keyname=test_key.name()
  70                 if os.path.isfile(publickey) and os.path.isfile(privatekey):
  71                     found=True
  72         #create dir in plc root image
  73         remote_privatekey="/root/keys/%s.rsa"%keyname
  74         if not os.path.isdir("/plc/root/data/root/keys"):
  75             self.test_plc.run_in_guest("mkdir  /root/keys" )
  76             self.test_plc.copy_in_guest(privatekey,remote_privatekey,True)
  77
  78         return (found,remote_privatekey)
  79
  80     def do_check_slices(self,options):
  81         bool=True
  82         self.clear_known_hosts()
  83         start_time = datetime.datetime.now()
  84         dead_time=start_time + datetime.timedelta(minutes=15)
  85         for slice_spec in self.test_plc.plc_spec['slices']:
  86             for hostname in slice_spec['nodenames']:
  87                 slicename=slice_spec['slice_fields']['name']
  88                 (found,remote_privatekey)=self.locate_key(slice_spec)
  89                 if( not found):
  90                     raise Exception,"Cannot find a valid key for slice %s"%slicename
  91                     break
  92                 while(bool):
  93                     utils.header('trying to connect to %s@%s'%(slicename,hostname))
  94                     Date=self.test_plc.run_in_guest('ssh -i %s %s@%s date'%(remote_privatekey,slicename,hostname))
  95                     if (Date==0):
  96                         break
  97                     elif ( start_time  <= dead_time ) :
  98                         start_time=datetime.datetime.now()+ datetime.timedelta(seconds=45)
  99                         time.sleep(45)
 100                     elif (options.forcenm):
 101                         utils.header('%s@%s : restarting nm in case is in option on %s'%(slicename,hostname,hostname))
 102                         access=self.test_plc.run_in_guest('ssh -i /etc/planetlab/root_ssh_key.rsa  root@%s service nm restart'%hostname)
 103                         if (access==0):
 104                             utils.header('nm restarted on %s'%hostname)
 105                         else:
 106                             utils.header('%s@%s : Failed to restart the NM on %s'%(slicename,hostname,hostname))
 107                         utils.header('Try to reconnect to  %s@%s after the tentative of restarting NM'%(slicename,hostname))
 108                         connect=self.test_plc.run_in_guest('ssh -i %s %s@%s date'%(remote_privatekey,slicename,hostname))
 109                         if (not connect):
 110                             utils.header('connected to %s@%s -->'%(slicename,hostname))
 111                             break
 112                         else:
 113                             utils.header('giving up with to %s@%s -->'%(slicename,hostname))
 114                             bool=False
 115                             break
 116                     else:
 117                         bool=False
 118                         break
 119         return bool
 120
 121
 122