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.apiserver.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.apiserver.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.apiserver.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.apiserver.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.apiserver.AddSliceAttribute(self.test_plc.auth_root(), slice_name,'initscript',isname)
  59         if self.slice_spec.has_key ('vref'):
  60             vref_value=self.slice_spec['vref']
  61             self.test_plc.apiserver.AddSliceAttribute(self.test_plc.auth_root(), slice_name,'vref',vref_value)
  62
  63     def locate_key(self):
  64         # locate the first avail. key
  65         found=False
  66         for username in self.slice_spec['usernames']:
  67             user_spec=self.test_site.locate_user(username)
  68             for keyname in user_spec['keynames']:
  69                 key_spec=self.test_plc.locate_key(keyname)
  70                 test_key=TestKey(self.test_plc,key_spec)
  71                 publickey=test_key.publicpath()
  72                 privatekey=test_key.privatepath()
  73                 keyname=test_key.name()
  74                 if os.path.isfile(publickey) and os.path.isfile(privatekey):
  75                     found=True
  76         return (found,privatekey)
  77
  78     def check_slice(self,options,timeout_minutes=20,silent_minutes=4,period=15):
  79         timeout = datetime.datetime.now()+datetime.timedelta(minutes=timeout_minutes)
  80         graceout = datetime.datetime.now()+datetime.timedelta(minutes=silent_minutes)
  81         # locate a key
  82         (found,remote_privatekey)=self.locate_key()
  83         if not found :
  84             utils.header("WARNING: Cannot find a valid key for slice %s"%self.name())
  85             return False
  86
  87         # convert nodenames to real hostnames
  88         slice_spec = self.slice_spec
  89         restarted=[]
  90         tocheck=[]
  91         for nodename in slice_spec['nodenames']:
  92             (site_spec,node_spec) = self.test_plc.locate_node(nodename)
  93             tocheck.append(node_spec['node_fields']['hostname'])
  94
  95         utils.header("checking ssh access into slice %s on nodes %r"%(self.name(),tocheck))
  96         utils.header("max timeout is %d minutes, silent for %d minutes (period is %s)"%\
  97                          (timeout_minutes,silent_minutes,period))
  98         while tocheck:
  99             for hostname in tocheck:
 100                 (site_spec,node_spec) = self.test_plc.locate_hostname(hostname)
 101                 date_test_ssh = TestSsh (hostname,key=remote_privatekey,username=self.name())
 102                 if datetime.datetime.now() >= graceout:
 103                     utils.header('Trying to enter into slice %s@%s'%(self.name(),hostname))
 104                 # this can be ran locally as we have the key
 105                 date = date_test_ssh.run("echo hostname ; hostname; echo id; id; echo uname -a ; uname -a")==0
 106                 if date:
 107                     utils.header("Successfuly entered slice %s on %s"%(self.name(),hostname))
 108                     tocheck.remove(hostname)
 109                 else:
 110                     # real nodes will have been checked once in case they're up - skip if not
 111                     if TestNode.is_real_model(node_spec['node_fields']['model']):
 112                         utils.header("WARNING : Checking slice %s on real node %s skipped"%(self.name(),hostname))
 113                         tocheck.remove(hostname)
 114                     # nm restart after first failure, if requested
 115                     if options.forcenm and hostname not in restarted:
 116                         utils.header ("forcenm option : restarting nm on %s"%hostname)
 117                         restart_test_ssh=TestSsh(hostname,key="/etc/planetlab/root_ssh_key.rsa")
 118                         access=self.test_plc.run_in_guest(restart_test_ssh.actual_command('service nm restart'))
 119                         if (access==0):
 120                             utils.header('nm restarted on %s'%hostname)
 121                         else:
 122                             utils.header('Failed to restart nm on %s'%(hostname))
 123                         restarted.append(hostname)
 124             if not tocheck:
 125                 # we're done
 126                 return True
 127             if datetime.datetime.now() > timeout:
 128                 for hostname in tocheck:
 129                     utils.header("FAILURE to ssh into %s@%s"%(self.name(),hostname))
 130                 return False
 131             # wait for the period
 132             time.sleep (period)
 133         # for an empty slice
 134         return True