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)
  18
  19     def name(self):
  20         return self.slice_spec['slice_fields']['name']
  21
  22     def is_local(self):
  23         return self.test_ssh.is_local()
  24
  25     def host_to_guest(self,command):
  26         return self.test_plc.host_to_guest(command)
  27
  28     def get_slice(self,slice_name):
  29         for slice_spec in self.test_plc.plc_spec['slices']:
  30             if(slice_spec['slice_fields']['name']== slice_name):
  31                 return slice_spec
  32
  33     def delete_slice(self):
  34         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  35         auth = TestUser(self,self.test_site,owner_spec).auth()
  36         slice_fields = self.slice_spec['slice_fields']
  37         slice_name = slice_fields['name']
  38         self.test_plc.server.DeleteSlice(auth,slice_fields['name'])
  39         utils.header("Deleted slice %s"%slice_fields['name'])
  40
  41
  42     def create_slice(self):
  43         owner_spec = self.test_site.locate_user(self.slice_spec['owner'])
  44         auth = TestUser(self,self.test_site,owner_spec).auth()
  45         slice_fields = self.slice_spec['slice_fields']
  46         slice_name = slice_fields['name']
  47
  48         self.test_plc.server.AddSlice(auth,slice_fields)
  49         for username in self.slice_spec['usernames']:
  50                 user_spec=self.test_site.locate_user(username)
  51                 test_user=TestUser(self,self.test_site,user_spec)
  52                 self.test_plc.server.AddPersonToSlice(auth, test_user.name(), slice_name)
  53
  54         hostnames=[]
  55         for nodename in self.slice_spec['nodenames']:
  56             node_spec=self.test_site.locate_node(nodename)
  57             test_node=TestNode(self,self.test_site,node_spec)
  58             hostnames += [test_node.name()]
  59         utils.header("Adding %r in %s"%(hostnames,slice_name))
  60         self.test_plc.server.AddSliceToNodes(auth, slice_name, hostnames)
  61         if self.slice_spec.has_key('initscriptname'):
  62             isname=self.slice_spec['initscriptname']
  63             utils.header("Adding initscript %s in %s"%(isname,slice_name))
  64             self.test_plc.server.AddSliceAttribute(self.test_plc.auth_root(), slice_name,'initscript',isname)
  65
  66     def clear_known_hosts (self):
  67         utils.header("Messing with known_hosts for slice %s"%self.name())
  68         # scan nodenames
  69         for nodename in self.slice_spec['nodenames']:
  70             self.test_ssh.run_in_guest("sed -i -e /^%s/d /root/.ssh/known_hosts"%nodename)
  71         #scan public key and update the known_host file in the root image
  72         self.test_plc.scan_publicKeys(self.slice_spec['nodenames'])
  73
  74     def locate_key(self,slice_spec):
  75         # locate the first avail. key
  76         found=False
  77         for username in slice_spec['usernames']:
  78             user_spec=self.test_site.locate_user(username)
  79             for keyname in user_spec['keynames']:
  80                 key_spec=self.test_plc.locate_key(keyname)
  81                 test_key=TestKey(self.test_plc,key_spec)
  82                 publickey=test_key.publicpath()
  83                 privatekey=test_key.privatepath()
  84                 keyname=test_key.name()
  85                 if os.path.isfile(publickey) and os.path.isfile(privatekey):
  86                     found=True
  87         #create dir in plc root image
  88         remote_privatekey="/root/keys/%s.rsa"%keyname
  89         if not os.path.isfile(remote_privatekey):
  90             self.test_ssh.run_in_guest("mkdir -p /root/keys" )
  91             self.test_plc.copy_in_guest(privatekey,remote_privatekey,True)
  92
  93         return (found,remote_privatekey)
  94
  95     def do_check_slice(self,options):
  96         bool=True
  97         self.clear_known_hosts()
  98         start_time = datetime.datetime.now()
  99         dead_time=start_time + datetime.timedelta(minutes=15)
 100         slice_spec = self.slice_spec
 101         for hostname in slice_spec['nodenames']:
 102             (site_spec,node_spec) = self.test_plc.locate_node(hostname)
 103             if TestNode.is_real_model(node_spec['node_fields']['model']):
 104                 utils.header("WARNING : Checking slice %s on real node %s skipped"%(self.name(),hostname))
 105                 continue
 106             (found,remote_privatekey)=self.locate_key(slice_spec)
 107             if not found :
 108                 raise Exception,"Cannot find a valid key for slice %s"%self.name()
 109                 break
 110             while (bool):
 111                 utils.header('trying to connect to %s@%s'%(self.name(),hostname))
 112                 Date=self.test_ssh.run_in_guest('ssh -i %s %s@%s date'%(remote_privatekey,self.name(),hostname))
 113                 if (Date==0):
 114                     break
 115                 elif ( start_time  <= dead_time ) :
 116                     start_time=datetime.datetime.now()+ datetime.timedelta(seconds=45)
 117                     time.sleep(45)
 118                 elif (options.forcenm):
 119                     utils.header('%s@%s : restarting nm in case is in option on %s'%(self.name(),hostname,hostname))
 120                     access=self.test_ssh.run_in_guest('ssh -i /etc/planetlab/root_ssh_key.rsa  root@%s service nm restart'%hostname)
 121                     if (access==0):
 122                         utils.header('nm restarted on %s'%hostname)
 123                     else:
 124                         utils.header('%s@%s : Failed to restart the NM on %s'%(self.name(),hostname,hostname))
 125                     utils.header('Try to reconnect to  %s@%s after the tentative of restarting NM'%(self.name(),hostname))
 126                     connect=self.test_ssh.run_in_guest('ssh -i %s %s@%s date'%(remote_privatekey,self.name(),hostname))
 127                     if (not connect):
 128                         utils.header('connected to %s@%s -->'%(self.name(),hostname))
 129                         break
 130                     else:
 131                         utils.header('giving up with to %s@%s -->'%(self.name(),hostname))
 132                         bool=False
 133                         break
 134                 else:
 135                     bool=False
 136                     break
 137         return bool
 138
 139
 140