system/TestPlc.py

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