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,minutes,options):
  93 #        self.clear_known_hosts()
  94         timeout = datetime.datetime.now()+datetime.timedelta(minutes=minutes)
  95
  96         # locate a key
  97         slice_spec = self.slice_spec
  98         (found,remote_privatekey)=self.locate_key(slice_spec)
  99         if not found :
 100             utils.header("WARNING: Cannot find a valid key for slice %s"%self.name())
 101             return False
 102
 103         # convert nodenames to real hostnames
 104         restarted=[]
 105         tocheck=[]
 106         for nodename in slice_spec['nodenames']:
 107             (site_spec,node_spec) = self.test_plc.locate_node(nodename)
 108             tocheck.append(node_spec['node_fields']['hostname'])
 109
 110         while tocheck:
 111             for hostname in tocheck:
 112                 (site_spec,node_spec) = self.test_plc.locate_host(hostname)
 113                 date_test_ssh = TestSsh (hostname,key=remote_privatekey,username=self.name())
 114                 # this can be ran locally as we have the key
 115                 utils.header('Trying to enter into slice %s@%s'%(self.name(),hostname))
 116                 date = date_test_ssh.run("date")
 117                 if not date:
 118                     utils.header("Successfuly entered slice %s on %s"%self.name(),hostname)
 119                     tocheck.remove(hostname)
 120                 else:
 121                     # real nodes will have been checked once in case they're up - skip if not
 122                     if TestNode.is_real_model(node_spec['node_fields']['model']):
 123                         utils.header("WARNING : Checking slice %s on real node %s skipped"%(self.name(),hostname))
 124                         tocheck.remove(hostname)
 125                     # nm restart after first failure, if requested
 126                     if options.forcenm and hostname not in restarted:
 127                         utils.header ("forcenm option : restarting nm on %s"%hostname)
 128                         restart_test_ssh=TestSsh(hostname,key="/etc/planetlab/root_ssh_key.rsa")
 129                         access=self.test_plc.run_in_guest(restart_test_ssh.actual_command('service nm restart'))
 130                         if (access==0):
 131                             utils.header('nm restarted on %s'%hostname)
 132                         else:
 133                             utils.header('Failed to restart nm on %s'%(hostname))
 134                         restarted.append(hostname)
 135             if not tocheck:
 136                 # we're done
 137                 return True
 138             if datetime.datetime.now() > timeout:
 139                 for hostname in tocheck:
 140                     utils.header("FAILURE to ssh into %s@%s"%(self.name(),hostname))
 141                 return False
 142             time.sleep (15)
 143         # for an empty slice
 144         return True