system/TestPlc.py

   1 # $Id$
   2 import os, os.path
   3 import sys
   4 import xmlrpclib
   5 import datetime
   6 import traceback
   7 from types import StringTypes
   8
   9 import utils
  10 from TestSite import TestSite
  11 from TestNode import TestNode
  12 from TestUser import TestUser
  13 from TestKey import TestKey
  14
  15 # step methods must take (self, options) and return a boolean
  16
  17 class TestPlc:
  18
  19     def __init__ (self,plc_spec):
  20         self.plc_spec=plc_spec
  21         self.url="https://%s:443/PLCAPI/"%plc_spec['hostname']
  22         self.server=xmlrpclib.Server(self.url,allow_none=True)
  23         self.path=os.path.dirname(sys.argv[0])
  24         try:
  25             self.vserverip=plc_spec['vserverip']
  26             self.vservername=plc_spec['vservername']
  27             self.vserver=True
  28         except:
  29             self.vserver=False
  30
  31     def name(self):
  32         name=self.plc_spec['name']
  33         if self.vserver:
  34             return name+"[%s]"%self.vservername
  35         else:
  36             return name+"[chroot]"
  37
  38     # define the API methods on this object through xmlrpc
  39     # would help, but not strictly necessary
  40     def connect (self):
  41         pass
  42
  43     # build the full command so command gets run in the chroot/vserver
  44     def run_command(self,command):
  45         if self.vserver:
  46             return "vserver %s exec %s"%(self.vservername,command)
  47         else:
  48             return "chroot /plc/root %s"%command
  49
  50     def ssh_command(self,command):
  51         if self.plc_spec['hostname'] == "localhost":
  52             return command
  53         else:
  54             return "ssh " + self.plc_spec['hostname'] + " " + command
  55
  56     def full_command(self,command):
  57         return self.ssh_command(self.run_command(command))
  58
  59     def run_in_guest (self,command):
  60         return utils.system(self.full_command(command))
  61     def run_in_host (self,command):
  62         return utils.system(self.ssh_command(command))
  63
  64     # xxx quick n dirty
  65     def run_in_guest_piped (self,local,remote):
  66         return utils.system(local+" | "+self.full_command(command))
  67
  68     def auth_root (self):
  69         return {'Username':self.plc_spec['PLC_ROOT_USER'],
  70                 'AuthMethod':'password',
  71                 'AuthString':self.plc_spec['PLC_ROOT_PASSWORD'],
  72                 'Role' : self.plc_spec['role']
  73                 }
  74     def locate_site (self,sitename):
  75         for site in self.plc_spec['sites']:
  76             if site['site_fields']['name'] == sitename:
  77                 return site
  78             if site['site_fields']['login_base'] == sitename:
  79                 return site
  80         raise Exception,"Cannot locate site %s"%sitename
  81
  82     def locate_key (self,keyname):
  83         for key in self.plc_spec['keys']:
  84             if key['name'] == keyname:
  85                 return key
  86         raise Exception,"Cannot locate key %s"%keyname
  87
  88     def kill_all_vmwares(self):
  89         utils.header('Killing any running vmware or vmplayer instance')
  90         utils.system('pgrep vmware | xargs -r kill')
  91         utils.system('pgrep vmplayer | xargs -r kill ')
  92         utils.system('pgrep vmware | xargs -r kill -9')
  93         utils.system('pgrep vmplayer | xargs -r kill -9')
  94
  95     #################### step methods
  96
  97     ### uninstall
  98     def uninstall_chroot(self,options):
  99         self.run_in_host('service plc safestop')
 100         #####detecting the last myplc version installed and remove it
 101         self.run_in_host('rpm -e myplc')
 102         ##### Clean up the /plc directory
 103         self.run_in_host('rm -rf  /plc/data')
 104         return True
 105
 106     def uninstall_vserver(self,options):
 107         self.run_in_host("vserver --silent %s delete"%self.vservername)
 108         return True
 109
 110     def uninstall(self,options):
 111         if self.vserver:
 112             return self.uninstall_vserver(options)
 113         else:
 114             return self.uninstall_chroot(options)
 115
 116     ### install
 117     def install_chroot(self,options):
 118         # nothing to do
 119         return True
 120
 121     # xxx this would not work with hostname != localhost as mylc-init-vserver was extracted locally
 122     def install_vserver(self,options):
 123         # we need build dir for vtest-init-vserver
 124         build_dir=self.path+"/build"
 125         if not os.path.isdir(build_dir):
 126             if utils.system("svn checkout %s %s"%(options.build_url,build_dir)) != 0:
 127                 raise Exception,"Cannot checkout build dir"
 128         # the repo url is taken from myplc-url
 129         # with the last two steps (i386/myplc...) removed
 130         repo_url = options.myplc_url
 131         repo_url = os.path.dirname(repo_url)
 132         repo_url = os.path.dirname(repo_url)
 133         command="%s/vtest-init-vserver.sh %s %s -- --interface eth0:%s"%\
 134             (build_dir,self.vservername,repo_url,self.vserverip)
 135         if utils.system(command) != 0:
 136             raise Exception,"Could not create vserver for %s"%self.vservername
 137         # xxx temporary - initialize /etc/sysconfig/networking
 138         networking="NETWORKING=yes\nHOSTNAME=%s\n"%self.plc_spec['vserverhostname']
 139         file("/vservers/%s/etc/sysconfig/networking"%vservername,"w").write(networking)
 140         return True
 141
 142     def install(self,options):
 143         if self.vserver:
 144             return self.install_vserver(options)
 145         else:
 146             return self.install_chroot(options)
 147
 148     ### install_rpm
 149     def install_rpm_chroot(self,options):
 150         utils.header('Installing from %s'%options.myplc_url)
 151         url=options.myplc_url
 152         utils.system('rpm -Uvh '+url)
 153         utils.system('service plc mount')
 154         return True
 155
 156     def install_rpm_vserver(self,options):
 157         self.run_in_guest("yum -y install myplc-native")
 158         return True
 159
 160     def install_rpm(self,options):
 161         if self.vserver:
 162             return self.install_rpm_vserver(options)
 163         else:
 164             return self.install_rpm_chroot(options)
 165
 166     ###
 167     def configure(self,options):
 168         tmpname='%s/%s.plc-config-tty'%(options.path,self.name())
 169         fileconf=open(tmpname,'w')
 170         for var in [ 'PLC_NAME',
 171                      'PLC_ROOT_PASSWORD',
 172                      'PLC_ROOT_USER',
 173                      'PLC_MAIL_ENABLED',
 174                      'PLC_MAIL_SUPPORT_ADDRESS',
 175                      'PLC_DB_HOST',
 176                      'PLC_API_HOST',
 177                      'PLC_WWW_HOST',
 178                      'PLC_BOOT_HOST',
 179                      'PLC_NET_DNS1',
 180                      'PLC_NET_DNS2']:
 181             fileconf.write ('e %s\n%s\n'%(var,self.plc_spec[var]))
 182         fileconf.write('w\n')
 183         fileconf.write('q\n')
 184         fileconf.close()
 185         utils.system('cat %s'%tmpname)
 186         self.run_in_guest('plc-config-tty < %s'%tmpname)
 187         utils.system('rm %s'%tmpname)
 188         return True
 189
 190     # the chroot install is slightly different to this respect
 191     def start(self, options):
 192         if self.vserver:
 193             self.run_in_guest('service plc start')
 194         else:
 195             self.run_in_host('service plc start')
 196         return True
 197
 198     def stop(self, options):
 199         if self.vserver:
 200             self.run_in_guest('service plc stop')
 201         else:
 202             self.run_in_host('service plc stop')
 203         return True
 204
 205     # could use a TestKey class
 206     def store_keys(self, options):
 207         for key_spec in self.plc_spec['keys']:
 208             TestKey(self,key_spec).store_key()
 209         return True
 210
 211     def clean_keys(self, options):
 212         utils.system("rm -rf %s/keys/"%self.path)
 213
 214     def sites (self,options):
 215         return self.do_sites(options)
 216
 217     def clean_sites (self,options):
 218         return self.do_sites(options,action="delete")
 219
 220     def do_sites (self,options,action="add"):
 221         for site_spec in self.plc_spec['sites']:
 222             test_site = TestSite (self,site_spec)
 223             if (action != "add"):
 224                 utils.header("Deleting site %s in %s"%(test_site.name(),self.name()))
 225                 test_site.delete_site()
 226                 # deleted with the site
 227                 #test_site.delete_users()
 228                 continue
 229             else:
 230                 utils.header("Creating site %s & users in %s"%(test_site.name(),self.name()))
 231                 test_site.create_site()
 232                 test_site.create_users()
 233         return True
 234
 235     def nodes (self, options):
 236         return self.do_nodes(options)
 237     def clean_nodes (self, options):
 238         return self.do_nodes(options,action="delete")
 239
 240     def do_nodes (self, options,action="add"):
 241         for site_spec in self.plc_spec['sites']:
 242             test_site = TestSite (self,site_spec)
 243             if action != "add":
 244                 utils.header("Deleting nodes in site %s"%test_site.name())
 245                 for node_spec in site_spec['nodes']:
 246                     test_node=TestNode(self,test_site,node_spec)
 247                     utils.header("Deleting %s"%test_node.name())
 248                     test_node.delete_node()
 249             else:
 250                 utils.header("Creating nodes for site %s in %s"%(test_site.name(),self.name()))
 251                 for node_spec in site_spec['nodes']:
 252                     utils.show_spec('Creating node %s'%node_spec,node_spec)
 253                     test_node = TestNode (self,test_site,node_spec)
 254                     test_node.create_node ()
 255         return True
 256
 257     # create nodegroups if needed, and populate
 258     # no need for a clean_nodegroups if we are careful enough
 259     def nodegroups (self, options):
 260         # 1st pass to scan contents
 261         groups_dict = {}
 262         for site_spec in self.plc_spec['sites']:
 263             test_site = TestSite (self,site_spec)
 264             for node_spec in site_spec['nodes']:
 265                 test_node=TestNode (self,test_site,node_spec)
 266                 if node_spec.has_key('nodegroups'):
 267                     nodegroupnames=node_spec['nodegroups']
 268                     if isinstance(nodegroupnames,StringTypes):
 269                         nodegroupnames = [ nodegroupnames ]
 270                     for nodegroupname in nodegroupnames:
 271                         if not groups_dict.has_key(nodegroupname):
 272                             groups_dict[nodegroupname]=[]
 273                         groups_dict[nodegroupname].append(test_node.name())
 274         auth=self.auth_root()
 275         for (nodegroupname,group_nodes) in groups_dict.iteritems():
 276             try:
 277                 self.server.GetNodeGroups(auth,{'name':nodegroupname})[0]
 278             except:
 279                 self.server.AddNodeGroup(auth,{'name':nodegroupname})
 280             for node in group_nodes:
 281                 self.server.AddNodeToNodeGroup(auth,node,nodegroupname)
 282         return True
 283
 284     def bootcd (self, options):
 285         for site_spec in self.plc_spec['sites']:
 286             test_site = TestSite (self,site_spec)
 287             for node_spec in site_spec['nodes']:
 288                 test_node=TestNode (self,test_site,node_spec)
 289                 test_node.create_boot_cd(options.path)
 290         return True
 291
 292     def initscripts (self, options):
 293         for initscript in self.plc_spec['initscripts']:
 294             utils.show_spec('Adding Initscript in plc %s'%self.plc_spec['name'],initscript)
 295             self.server.AddInitScript(self.auth_root(),initscript['initscript_fields'])
 296         return True
 297
 298     def slices (self, options):
 299         return self.do_slices()
 300
 301     def clean_slices (self, options):
 302         return self.do_slices("delete")
 303
 304     ### would need a TestSlice class
 305     def do_slices (self, add_or_delete="add"):
 306         for slice in self.plc_spec['slices']:
 307             site_spec = self.locate_site (slice['sitename'])
 308             test_site = TestSite(self,site_spec)
 309             owner_spec = test_site.locate_user(slice['owner'])
 310             auth = TestUser(self,test_site,owner_spec).auth()
 311             slice_fields = slice['slice_fields']
 312             slice_name = slice_fields['name']
 313             if (add_or_delete == "delete"):
 314                 self.server.DeleteSlice(auth,slice_fields['name'])
 315                 utils.header("Deleted slice %s"%slice_fields['name'])
 316                 continue
 317             utils.show_spec("Creating slice",slice_fields)
 318             self.server.AddSlice(auth,slice_fields)
 319             utils.header('Created Slice %s'%slice_fields['name'])
 320             for username in slice['usernames']:
 321                 user_spec=test_site.locate_user(username)
 322                 test_user=TestUser(self,test_site,user_spec)
 323                 self.server.AddPersonToSlice(auth, test_user.name(), slice_name)
 324
 325             hostnames=[]
 326             for nodename in slice['nodenames']:
 327                 node_spec=test_site.locate_node(nodename)
 328                 test_node=TestNode(self,test_site,node_spec)
 329                 hostnames += [test_node.name()]
 330             utils.header("Adding %r in %s"%(hostnames,slice_name))
 331             self.server.AddSliceToNodes(auth, slice_name, hostnames)
 332             if slice.has_key('initscriptname'):
 333                 isname=slice['initscriptname']
 334                 utils.header("Adding initscript %s in %s"%(isname,slice_name))
 335                 self.server.AddSliceAttribute(self.auth_root(), slice_name,
 336                                               'initscript',isname)
 337         return True
 338
 339     def start_nodes (self, options):
 340         self.kill_all_vmwares()
 341         utils.header("Starting vmware nodes")
 342         for site_spec in self.plc_spec['sites']:
 343             TestSite(self,site_spec).start_nodes (options)
 344         return True
 345
 346     def stop_nodes (self, options):
 347         self.kill_all_vmwares ()
 348         return True
 349
 350     # returns the filename to use for sql dump/restore, using options.dbname if set
 351     def dbfile (self, database, options):
 352         # uses options.dbname if it is found
 353         try:
 354             name=options.dbname
 355             if not isinstance(name,StringTypes):
 356                 raise Exception
 357         except:
 358             t=datetime.datetime.now()
 359             d=t.date()
 360             name=str(d)
 361         return "/root/%s-%s.sql"%(database,name)
 362
 363     def db_dump(self, options):
 364
 365         dump=self.dbfile("planetab4",options)
 366         self.run_in_guest('pg_dump -U pgsqluser planetlab4 -f '+ dump)
 367         utils.header('Dumped planetlab4 database in %s'%dump)
 368         return True
 369
 370     def db_restore(self, options):
 371         dump=self.dbfile("planetab4",options)
 372         ##stop httpd service
 373         self.run_in_guest('service httpd stop')
 374         # xxx - need another wrapper
 375         self.run_in_guest_piped('echo drop database planetlab4','psql --user=pgsqluser template1')
 376         self.run_in_guest('createdb -U postgres --encoding=UNICODE --owner=pgsqluser planetlab4')
 377         self.run_in_guest('psql -U pgsqluser planetlab4 -f '+dump)
 378         ##starting httpd service
 379         self.run_in_guest('service httpd start')
 380
 381         utils.header('Database restored from ' + dump)