system/TestNode.py

   1 # Thierry Parmentelat <thierry.parmentelat@inria.fr>
   2 # Copyright (C) 2010 INRIA
   3 #
   4 import sys, os, os.path, time, base64
   5 import xmlrpclib
   6
   7 import utils
   8 from TestUser import TestUser
   9 from TestBoxQemu import TestBoxQemu
  10 from TestSsh import TestSsh
  11
  12 class TestNode:
  13
  14     def __init__ (self,test_plc,test_site,node_spec):
  15         self.test_plc=test_plc
  16         self.test_site=test_site
  17         self.node_spec=node_spec
  18
  19     def name(self):
  20         return self.node_spec['node_fields']['hostname']
  21
  22     @staticmethod
  23     def is_qemu_model (model):
  24         return model.find("qemu") >= 0
  25     def is_qemu (self):
  26         return TestNode.is_qemu_model(self.node_spec['node_fields']['model'])
  27
  28     @staticmethod
  29     def is_real_model (model):
  30         return not TestNode.is_qemu_model(model)
  31     def is_real (self):
  32         return TestNode.is_real_model (self.node_spec['node_fields']['model'])
  33
  34     def buildname(self):
  35         return self.test_plc.options.buildname
  36
  37     def nodedir (self):
  38         if self.is_qemu():
  39             return "qemu-%s"%self.name()
  40         else:
  41             return "real-%s"%self.name()
  42
  43     # this returns a hostname
  44     def host_box (self):
  45         if self.is_real ():
  46             return 'localhost'
  47         else:
  48             try:
  49                 return self.node_spec['host_box']
  50             except:
  51                 utils.header("WARNING : qemu nodes need a host box")
  52                 return 'localhost'
  53
  54     # this returns a TestBoxQemu instance - cached in .test_box_value
  55     def test_box (self):
  56         try:
  57             return self.test_box_value
  58         except:
  59             self.test_box_value = TestBoxQemu (self.host_box(),self.buildname())
  60             return self.test_box_value
  61
  62     def create_node (self):
  63         ownername = self.node_spec['owner']
  64         user_spec = self.test_site.locate_user(ownername)
  65         test_user = TestUser(self.test_plc,self.test_site,user_spec)
  66         userauth = test_user.auth()
  67         utils.header("node %s created by user %s"%(self.name(),test_user.name()))
  68         rootauth=self.test_plc.auth_root()
  69         server = self.test_plc.apiserver
  70         node_id=server.AddNode(userauth,
  71                                self.test_site.site_spec['site_fields']['login_base'],
  72                                self.node_spec['node_fields'])
  73         server.SetNodePlainBootstrapfs(userauth,
  74                                        self.node_spec['node_fields']['hostname'],
  75                                        'YES')
  76         # create as reinstall to avoid user confirmation
  77         server.UpdateNode(userauth, self.name(), {'boot_state':'reinstall'})
  78
  79         if not self.test_plc.has_addresses_api():
  80 #            print 'USING OLD INTERFACE'
  81             # populate network interfaces - primary
  82             server.AddInterface(userauth,self.name(),
  83                                 self.node_spec['interface_fields'])
  84         else:
  85 #            print 'USING NEW INTERFACE with separate ip addresses'
  86             # this is for setting the 'dns' stuff that now goes with the node
  87             server.UpdateNode (userauth, self.name(), self.node_spec['node_fields_nint'])
  88             interface_id = server.AddInterface (userauth, self.name(),self.node_spec['interface_fields_nint'])
  89             server.AddIpAddress (userauth, interface_id, self.node_spec['ipaddress_fields'])
  90             route_fields=self.node_spec['route_fields']
  91             route_fields['interface_id']=interface_id
  92             server.AddRoute (userauth, node_id, self.node_spec['route_fields'])
  93             pass
  94         # populate network interfaces - others
  95         if self.node_spec.has_key('extra_interfaces'):
  96             for interface in self.node_spec['extra_interfaces']:
  97                 server.AddInterface(userauth,self.name(), interface['interface_fields'])
  98                 if interface.has_key('settings'):
  99                     for (attribute,value) in interface['settings'].iteritems():
 100                         # locate node network
 101                         interface = server.GetInterfaces(userauth,{'ip':interface['interface_fields']['ip']})[0]
 102                         interface_id=interface['interface_id']
 103                         # locate or create node network attribute type
 104                         try:
 105                             interface_tagtype = server.GetTagTypes(userauth,{'name':attribute})[0]
 106                         except:
 107                             interface_tagtype = server.AddTagType(rootauth,{'category':'test',
 108                                                                             'tagname':attribute})
 109                         # attach value
 110                         server.AddInterfaceTag(userauth,interface_id,attribute,value)
 111
 112     def delete_node (self):
 113         # uses the right auth as far as poss.
 114         try:
 115             ownername = self.node_spec['owner']
 116             user_spec = self.test_site.locate_user(ownername)
 117             test_user = TestUser(self.test_plc,self.test_site,user_spec)
 118             auth = test_user.auth()
 119         except:
 120             auth=self.test_plc.auth_root()
 121         self.test_plc.apiserver.DeleteNode(auth,self.name())
 122
 123     # Do most of the stuff locally - will be pushed on host_box - *not* the plc - later if needed
 124     def qemu_local_init(self):
 125         utils.system("rm -rf %s"%self.nodedir())
 126         utils.system("mkdir %s"%self.nodedir())
 127         if not self.is_qemu():
 128             return True
 129         return utils.system("rsync -v -a --exclude .svn template-qemu/ %s/"%self.nodedir())==0
 130
 131     def bootcd(self):
 132         utils.header("Calling GetBootMedium for %s"%self.name())
 133         options = []
 134         if self.is_qemu():
 135             options.append('serial')
 136             options.append('no-hangcheck')
 137         encoded=self.test_plc.apiserver.GetBootMedium(self.test_plc.auth_root(),
 138                                                       self.name(), 'node-iso', '', options)
 139         if (encoded == ''):
 140             raise Exception, 'GetBootmedium failed'
 141
 142         filename="%s/%s.iso"%(self.nodedir(),self.name())
 143         utils.header('Storing boot medium into %s'%filename)
 144         if self.test_plc.options.dry_run:
 145             print "Dry_run: skipped writing of iso image"
 146             return True
 147         else:
 148             file(filename,'w').write(base64.b64decode(encoded))
 149             return True
 150
 151     def nodestate_reinstall (self):
 152         self.test_plc.apiserver.UpdateNode(self.test_plc.auth_root(),
 153                                            self.name(),{'boot_state':'reinstall'})
 154         return True
 155
 156     def nodestate_safeboot (self):
 157         self.test_plc.apiserver.UpdateNode(self.test_plc.auth_root(),
 158                                            self.name(),{'boot_state':'safeboot'})
 159         return True
 160
 161     def nodestate_boot (self):
 162         self.test_plc.apiserver.UpdateNode(self.test_plc.auth_root(),
 163                                            self.name(),{'boot_state':'boot'})
 164         return True
 165
 166     def nodestate_show (self):
 167         if self.test_plc.options.dry_run:
 168             print "Dry_run: skipped getting current node state"
 169             return True
 170         state=self.test_plc.apiserver.GetNodes(self.test_plc.auth_root(), self.name(), ['boot_state'])[0]['boot_state']
 171         print self.name(),':',state
 172         return True
 173
 174     def qemu_local_config(self):
 175         if not self.is_qemu():
 176             return
 177         mac=self.node_spec['interface_fields']['mac']
 178         hostname=self.node_spec['node_fields']['hostname']
 179         ip=self.node_spec['interface_fields']['ip']
 180         auth=self.test_plc.auth_root()
 181         target_arch=self.test_plc.apiserver.GetPlcRelease(auth)['build']['target-arch']
 182         conf_filename="%s/qemu.conf"%(self.nodedir())
 183         if self.test_plc.options.dry_run:
 184             print "dry_run: skipped actual storage of qemu.conf"
 185             return True
 186         utils.header('Storing qemu config for %s in %s'%(self.name(),conf_filename))
 187         file=open(conf_filename,'w')
 188         file.write('MACADDR=%s\n'%mac)
 189         file.write('NODE_ISO=%s.iso\n'%self.name())
 190         file.write('HOSTNAME=%s\n'%hostname)
 191         file.write('IP=%s\n'%ip)
 192         file.write('TARGET_ARCH=%s\n'%target_arch)
 193         file.close()
 194         return True
 195
 196     def qemu_export (self):
 197         # if relevant, push the qemu area onto the host box
 198         if self.test_box().is_local():
 199             return True
 200         utils.header ("Cleaning any former sequel of %s on %s"%(self.name(),self.host_box()))
 201         self.test_box().run_in_buildname("rm -rf %s"%self.nodedir())
 202         utils.header ("Transferring configuration files for node %s onto %s"%(self.name(),self.host_box()))
 203         return self.test_box().copy(self.nodedir(),recursive=True)==0
 204
 205     def qemu_start (self):
 206         model=self.node_spec['node_fields']['model']
 207         #starting the Qemu nodes before
 208         if self.is_qemu():
 209             self.start_qemu()
 210         else:
 211             utils.header("TestNode.qemu_start : %s model %s taken as real node"%(self.name(),model))
 212         return True
 213
 214     def timestamp_qemu (self):
 215         test_box = self.test_box()
 216         test_box.run_in_buildname("mkdir -p %s"%self.nodedir())
 217         now=int(time.time())
 218         return test_box.run_in_buildname("echo %d > %s/timestamp"%(now,self.nodedir()))==0
 219
 220     def start_qemu (self):
 221         test_box = self.test_box()
 222         utils.header("Starting qemu node %s on %s"%(self.name(),test_box.hostname()))
 223
 224         test_box.run_in_buildname("%s/qemu-bridge-init start >> %s/log.txt"%(self.nodedir(),self.nodedir()))
 225         # kick it off in background, as it would otherwise hang
 226         test_box.run_in_buildname("%s/qemu-start-node 2>&1 >> %s/log.txt"%(self.nodedir(),self.nodedir()))
 227
 228     def list_qemu (self):
 229         utils.header("Listing qemu for host %s on box %s"%(self.name(),self.test_box().hostname()))
 230         command="%s/qemu-kill-node -l %s"%(self.nodedir(),self.name())
 231         self.test_box().run_in_buildname(command)
 232         return True
 233
 234     def kill_qemu (self):
 235         #Prepare the log file before killing the nodes
 236         test_box = self.test_box()
 237         # kill the right processes
 238         utils.header("Stopping qemu for node %s on box %s"%(self.name(),self.test_box().hostname()))
 239         command="%s/qemu-kill-node %s"%(self.nodedir(),self.name())
 240         self.test_box().run_in_buildname(command)
 241         return True
 242
 243     def gather_qemu_logs (self):
 244         if not self.is_qemu():
 245             return True
 246         remote_log="%s/log.txt"%self.nodedir()
 247         local_log="logs/node.qemu.%s.txt"%self.name()
 248         self.test_box().test_ssh.fetch(remote_log,local_log)
 249
 250     def keys_clear_known_hosts (self):
 251         TestSsh(self.name()).clear_known_hosts()
 252         return True
 253
 254     def create_test_ssh(self):
 255         # get the plc's keys for entering the node
 256         vservername=self.test_plc.vservername
 257 ###        # assuming we've run testplc.fetch_keys()
 258 ###        key = "keys/%(vservername)s.rsa"%locals()
 259         # fetch_keys doesn't grab the root key anymore
 260         key = "keys/key1.rsa"
 261         return TestSsh(self.name(), buildname=self.buildname(), key=key)
 262
 263     def check_hooks (self):
 264         extensions = [ 'py','pl','sh' ]
 265         path='hooks/node'
 266         scripts=utils.locate_hooks_scripts ('node '+self.name(), path,extensions)
 267         overall = True
 268         for script in scripts:
 269             if not self.check_hooks_script (script):
 270                 overall = False
 271         return overall
 272
 273     def check_hooks_script (self,local_script):
 274         # push the script on the node's root context
 275         script_name=os.path.basename(local_script)
 276         utils.header ("NODE hook %s (%s)"%(script_name,self.name()))
 277         test_ssh=self.create_test_ssh()
 278         test_ssh.copy_home(local_script)
 279         if test_ssh.run("./"+script_name) != 0:
 280             utils.header ("WARNING: node hooks check script %s FAILED (ignored)"%script_name)
 281             #return False
 282             return True
 283         else:
 284             utils.header ("SUCCESS: node hook %s OK"%script_name)
 285             return True
 286
 287     def has_libvirt (self):
 288         test_ssh=self.create_test_ssh()
 289         return test_ssh.run ("rpm -q libvirt-client")==0
 290
 291     def check_systemslice (self, slicename,dry_run=False):
 292         sitename=self.test_plc.plc_spec['PLC_SLICE_PREFIX']
 293         vservername="%s_%s"%(sitename,slicename)
 294         test_ssh=self.create_test_ssh()
 295         if self.has_libvirt():
 296             return test_ssh.run("virsh --connect lxc:// list | grep -q ' %s '"%vservername,
 297                                 dry_run=dry_run)==0
 298         else:
 299             (retcod,output)=utils.output_of(test_ssh.actual_command("cat /vservers/%s/etc/slicefamily 2> /dev/null")%vservername)
 300             # get last line only as ssh pollutes the output
 301             slicefamily=output.split("\n")[-1]
 302             utils.header("system slice %s has slicefamily %s"%(slicename, slicefamily))
 303             if retcod != 0:
 304                 return False
 305             return test_ssh.run("vserver-stat | grep %s"%vservername,dry_run=dry_run)==0
 306
 307