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 from TestSsh import TestSsh
  10
  11 class TestSlice:
  12
  13     def __init__ (self,test_plc,test_site,slice_spec):
  14         self.test_plc=test_plc
  15         self.test_site=test_site
  16         self.slice_spec=slice_spec
  17         self.test_ssh=TestSsh(self.test_plc.test_ssh)
  18
  19     def name(self):
  20         return self.slice_spec['slice_fields']['name']
  21
  22     def get_slice(self,slice_name):
  23         for slice_spec in self.test_plc.plc_spec['slices']:
  24             if(slice_spec['slice_fields']['name']== slice_name):
  25                 return slice_spec
  26
  27     def delete_slice(self):
  28         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  29         auth = TestUser(self,self.test_site,owner_spec).auth()
  30         slice_fields = self.slice_spec['slice_fields']
  31         slice_name = slice_fields['name']
  32         self.test_plc.server.DeleteSlice(auth,slice_fields['name'])
  33         utils.header("Deleted slice %s"%slice_fields['name'])
  34
  35
  36     def create_slice(self):
  37         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  38         auth = TestUser(self,self.test_site,owner_spec).auth()
  39         slice_fields = self.slice_spec['slice_fields']
  40         slice_name = slice_fields['name']
  41
  42         self.test_plc.server.AddSlice(auth,slice_fields)
  43         for username in self.slice_spec['usernames']:
  44                 user_spec=self.test_site.locate_user(username)
  45                 test_user=TestUser(self,self.test_site,user_spec)
  46                 self.test_plc.server.AddPersonToSlice(auth, test_user.name(), slice_name)
  47
  48         hostnames=[]
  49         for nodename in self.slice_spec['nodenames']:
  50             node_spec=self.test_site.locate_node(nodename)
  51             test_node=TestNode(self,self.test_site,node_spec)
  52             hostnames += [test_node.name()]
  53         utils.header("Adding %r in %s"%(hostnames,slice_name))
  54         self.test_plc.server.AddSliceToNodes(auth, slice_name, hostnames)
  55         if self.slice_spec.has_key('initscriptname'):
  56             isname=self.slice_spec['initscriptname']
  57             utils.header("Adding initscript %s in %s"%(isname,slice_name))
  58             self.test_plc.server.AddSliceAttribute(self.test_plc.auth_root(), slice_name,'initscript',isname)
  59
  60     def clear_known_hosts (self):
  61         utils.header("Messing with known_hosts for slice %s"%self.name())
  62         hostnames=[]
  63         # scan nodenames
  64         for nodename in self.slice_spec['nodenames']:
  65             (site_spec,node_spec) = self.test_plc.locate_node(nodename)
  66             hostnames.append(node_spec['node_fields']['hostname'])
  67             self.test_plc.run_in_guest("sed -i -e /^%s/d /root/.ssh/known_hosts"%node_spec['node_fields']['hostname'])
  68         #scan public key and update the known_host file in the root image
  69         self.test_plc.scan_publicKeys(hostnames)
  70
  71     def locate_key(self,slice_spec):
  72         # locate the first avail. key
  73         found=False
  74         for username in slice_spec['usernames']:
  75             user_spec=self.test_site.locate_user(username)
  76             for keyname in user_spec['keynames']:
  77                 key_spec=self.test_plc.locate_key(keyname)
  78                 test_key=TestKey(self.test_plc,key_spec)
  79                 publickey=test_key.publicpath()
  80                 privatekey=test_key.privatepath()
  81                 keyname=test_key.name()
  82                 if os.path.isfile(publickey) and os.path.isfile(privatekey):
  83                     found=True
  84         #create dir in plc root image
  85         remote_privatekey="/root/keys/%s.rsa"%keyname
  86         if not os.path.isfile(remote_privatekey):
  87             self.test_plc.run_in_guest("mkdir -p /root/keys" )
  88             self.test_plc.copy_in_guest(privatekey,remote_privatekey,True)
  89
  90         return (found,remote_privatekey)
  91
  92     def do_check_slice(self,options):
  93         bool=True
  94         self.clear_known_hosts()
  95         start_time = datetime.datetime.now()
  96         dead_time=start_time + datetime.timedelta(minutes=15)
  97         slice_spec = self.slice_spec
  98         for nodename in slice_spec['nodenames']:
  99             (site_spec,node_spec) = self.test_plc.locate_node(nodename)
 100             hostname=node_spec['node_fields']['hostname']
 101             if TestNode.is_real_model(node_spec['node_fields']['model']):
 102                 utils.header("WARNING : Checking slice %s on real node %s skipped"%(self.name(),hostname))
 103                 continue
 104             (found,remote_privatekey)=self.locate_key(slice_spec)
 105             if not found :
 106                 raise Exception,"Cannot find a valid key for slice %s"%self.name()
 107                 break
 108             while (bool):
 109                 utils.header('trying to connect to %s@%s'%(self.name(),hostname))
 110                 Date=self.test_plc.run_in_guest('ssh -i %s %s@%s date'%(remote_privatekey,self.name(),hostname))
 111                 if (Date==0):
 112                     break
 113                 elif ( start_time  <= dead_time ) :
 114                     start_time=datetime.datetime.now()+ datetime.timedelta(seconds=45)
 115                     time.sleep(45)
 116                 elif (options.forcenm):
 117                     utils.header('%s@%s : restarting nm in case is in option on %s'%(self.name(),hostname,hostname))
 118                     access=self.test_plc.run_in_guest('ssh -i /etc/planetlab/root_ssh_key.rsa  root@%s service nm restart'%hostname)
 119                     if (access==0):
 120                         utils.header('nm restarted on %s'%hostname)
 121                     else:
 122                         utils.header('%s@%s : Failed to restart the NM on %s'%(self.name(),hostname,hostname))
 123                     utils.header('Try to reconnect to  %s@%s after the tentative of restarting NM'%(self.name(),hostname))
 124                     connect=self.test_plc.run_in_guest('ssh -i %s %s@%s date'%(remote_privatekey,self.name(),hostname))
 125                     if (not connect):
 126                         utils.header('connected to %s@%s -->'%(self.name(),hostname))
 127                         break
 128                     else:
 129                         utils.header('giving up with to %s@%s -->'%(self.name(),hostname))
 130                         bool=False
 131                         break
 132                 else:
 133                     bool=False
 134                     break
 135         return bool
 136
 137
 138