2 # Thierry Parmentelat <thierry.parmentelat@inria.fr>
3 # Copyright (C) 2010 INRIA
5 # #################### history
7 # see also Substrate.readme
9 # This is a complete rewrite of TestResources/Tracker/Pool
10 # we don't use trackers anymore and just probe/sense the running
11 # boxes to figure out where we are
12 # in order to implement some fairness in the round-robin allocation scheme
13 # we need an indication of the 'age' of each running entity,
14 # hence the 'timestamp-*' steps in TestPlc
16 # this should be much more flexible:
17 # * supports several plc boxes
18 # * supports several qemu guests per host
19 # * no need to worry about tracker being in sync or not
21 # #################### howto use
23 # each site is to write its own LocalSubstrate.py,
24 # (see e.g. LocalSubstrate.inria.py)
25 # LocalSubstrate.py is expected to be in /root on the testmaster box
28 # . the vserver-capable boxes used for hosting myplcs
29 # . and their admissible load (max # of myplcs)
30 # . the pool of DNS-names and IP-addresses available for myplcs
32 # . the kvm-qemu capable boxes to host qemu instances
33 # . and their admissible load (max # of myplcs)
34 # . the pool of DNS-names and IP-addresses available for nodes
36 # #################### implem. note
38 # this model relies on 'sensing' the substrate,
39 # i.e. probing all the boxes for their running instances of vservers and qemu
40 # this is how we get rid of tracker inconsistencies
41 # however there is a 'black hole' between the time where a given address is
42 # allocated and when it actually gets used/pingable
43 # this is why we still need a shared knowledge among running tests
44 # in a file named /root/starting
45 # this is connected to the Pool class
47 # ####################
56 from optparse import OptionParser
59 from TestSsh import TestSsh
60 from TestMapper import TestMapper
62 def header (message,banner=True):
63 if not message: return
64 if banner: print "===============",
68 def timestamp_sort(o1,o2): return o1.timestamp-o2.timestamp
70 def short_hostname (hostname):
71 return hostname.split('.')[0]
74 # the place were other test instances tell about their not-yet-started
75 # instances, that go undetected through sensing
78 location='/root/starting'
83 try: self.tuples=[line.strip().split('@')
84 for line in file(Starting.location).readlines()]
85 except: self.tuples=[]
89 return [ x for (x,_) in self.tuples ]
91 def add (self, vname, bname):
92 if not vname in self.vnames():
93 file(Starting.location,'a').write("%s@%s\n"%(vname,bname))
95 def delete_vname (self, vname):
97 if vname in self.vnames():
98 f=file(Starting.location,'w')
99 for (v,b) in self.tuples:
100 if v != vname: f.write("%s@%s\n"%(v,b))
105 # allows to pick an available IP among a pool
106 # input is expressed as a list of tuples (hostname,ip,user_data)
107 # that can be searched iteratively for a free slot
109 # pool = [ (hostname1,user_data1),
110 # (hostname2,user_data2),
111 # (hostname3,user_data2),
112 # (hostname4,user_data4) ]
113 # assuming that ip1 and ip3 are taken (pingable), then we'd get
115 # pool.next_free() -> entry2
116 # pool.next_free() -> entry4
117 # pool.next_free() -> None
118 # that is, even if ip2 is not busy/pingable when the second next_free() is issued
121 def __init__ (self,hostname,userdata):
122 self.hostname=hostname
123 self.userdata=userdata
124 # slot holds 'busy' or 'free' or 'mine' or 'starting' or None
125 # 'mine' is for our own stuff, 'starting' from the concurrent tests
130 return "Pooled %s (%s) -> %s"%(self.hostname,self.userdata, self.status)
133 if self.status==None: return '?'
134 elif self.status=='busy': return '+'
135 elif self.status=='free': return '-'
136 elif self.status=='mine': return 'M'
137 elif self.status=='starting': return 'S'
140 if self.ip: return self.ip
141 ip=socket.gethostbyname(self.hostname)
147 def __init__ (self, tuples,message, substrate):
148 self.pool_items= [ PoolItem (hostname,userdata) for (hostname,userdata) in tuples ]
150 # where to send notifications upon load_starting
151 self.substrate=substrate
153 def list (self, verbose=False):
154 for i in self.pool_items: print i.line()
158 for i in self.pool_items: line += ' ' + i.char()
161 def _item (self, hostname):
162 for i in self.pool_items:
163 if i.hostname==hostname: return i
164 raise Exception ("Could not locate hostname %s in pool %s"%(hostname,self.message))
166 def retrieve_userdata (self, hostname):
167 return self._item(hostname).userdata
169 def get_ip (self, hostname):
170 try: return self._item(hostname).get_ip()
171 except: return socket.gethostbyname(hostname)
173 def set_mine (self, hostname):
175 self._item(hostname).status='mine'
177 print 'WARNING: host %s not found in IP pool %s'%(hostname,self.message)
179 def next_free (self):
180 for i in self.pool_items:
181 if i.status == 'free':
183 return (i.hostname,i.userdata)
187 # we have a starting instance of our own
188 def add_starting (self, vname, bname):
189 Starting().add(vname,bname)
190 for i in self.pool_items:
191 if i.hostname==vname: i.status='mine'
193 # load the starting instances from the common file
194 # remember that might be ours
195 # return the list of (vname,bname) that are not ours
196 def load_starting (self):
200 for (v,b) in starting.tuples:
201 for i in self.pool_items:
202 if i.hostname==v and i.status=='free':
204 new_tuples.append( (v,b,) )
207 def release_my_starting (self):
208 for i in self.pool_items:
210 Starting().delete_vname (i.hostname)
216 for item in self.pool_items:
217 if item.status is not None:
220 if self.check_ping (item.hostname):
228 print 'Sensing IP pool',self.message,
231 for (vname,bname) in self.load_starting():
232 self.substrate.add_starting_dummy (bname, vname)
233 print 'After starting: IP pool'
235 # OS-dependent ping option (support for macos, for convenience)
236 ping_timeout_option = None
237 # returns True when a given hostname/ip responds to ping
238 def check_ping (self,hostname):
239 if not Pool.ping_timeout_option:
240 (status,osname) = commands.getstatusoutput("uname -s")
242 raise Exception, "TestPool: Cannot figure your OS name"
243 if osname == "Linux":
244 Pool.ping_timeout_option="-w"
245 elif osname == "Darwin":
246 Pool.ping_timeout_option="-t"
248 command="ping -c 1 %s 1 %s"%(Pool.ping_timeout_option,hostname)
249 (status,output) = commands.getstatusoutput(command)
254 def __init__ (self,hostname):
255 self.hostname=hostname
257 def shortname (self):
258 return short_hostname(self.hostname)
259 def test_ssh (self): return TestSsh(self.hostname,username='root',unknown_host=False)
260 def reboot (self, options):
261 self.test_ssh().run("shutdown -r now",message="Rebooting %s"%self.hostname,
262 dry_run=options.dry_run)
265 if hasattr(self,'_uptime') and self._uptime: return self._uptime
266 return '*undef* uptime'
267 def sense_uptime (self):
269 self._uptime=self.backquote_ssh(command,trash_err=True).strip()
270 if not self._uptime: self._uptime='unreachable'
272 def run(self,argv,message=None,trash_err=False,dry_run=False):
280 return subprocess.call(argv)
282 return subprocess.call(argv,stderr=file('/dev/null','w'))
284 def run_ssh (self, argv, message, trash_err=False, dry_run=False):
285 ssh_argv = self.test_ssh().actual_argv(argv)
286 result=self.run (ssh_argv, message, trash_err, dry_run=dry_run)
288 print "WARNING: failed to run %s on %s"%(" ".join(argv),self.hostname)
291 def backquote (self, argv, trash_err=False):
292 # print 'running backquote',argv
294 result= subprocess.Popen(argv,stdout=subprocess.PIPE).communicate()[0]
296 result= subprocess.Popen(argv,stdout=subprocess.PIPE,stderr=file('/dev/null','w')).communicate()[0]
300 if self._probed is not None: return self._probed
301 # first probe the ssh link
302 probe_argv=self.test_ssh().actual_argv(['hostname'])
303 self._probed=self.backquote ( probe_argv, trash_err=True )
304 if not self._probed: print "root@%s unreachable"%self.hostname
307 # use argv=['bash','-c',"the command line"]
308 # if you have any shell-expanded arguments like *
309 # and if there's any chance the command is adressed to the local host
310 def backquote_ssh (self, argv, trash_err=False):
311 if not self.probe(): return ''
312 return self.backquote( self.test_ssh().actual_argv(argv), trash_err)
314 ############################################################
316 def __init__ (self, buildname, pid, buildbox):
317 self.buildname=buildname
318 self.buildbox=buildbox
321 def add_pid(self,pid):
322 self.pids.append(pid)
325 return "== %s == (pids=%r)"%(self.buildname,self.pids)
327 class BuildBox (Box):
328 def __init__ (self,hostname):
329 Box.__init__(self,hostname)
330 self.build_instances=[]
332 def add_build (self,buildname,pid):
333 for build in self.build_instances:
334 if build.buildname==buildname:
337 self.build_instances.append(BuildInstance(buildname, pid, self))
339 def list(self, verbose=False):
340 if not self.build_instances:
341 header ('No build process on %s (%s)'%(self.hostname,self.uptime()))
343 header ("Builds on %s (%s)"%(self.hostname,self.uptime()))
344 for b in self.build_instances:
345 header (b.line(),banner=False)
347 def reboot (self, options):
349 Box.reboot(self,options)
351 command=['pkill','vbuild']
352 self.run_ssh(command,"Terminating vbuild processes",dry_run=options.dry_run)
354 # inspect box and find currently running builds
355 matcher=re.compile("\s*(?P<pid>[0-9]+).*-[bo]\s+(?P<buildname>[^\s]+)(\s|\Z)")
356 matcher_building_vm=re.compile("\s*(?P<pid>[0-9]+).*init-vserver.*\s+(?P<buildname>[^\s]+)\s*\Z")
357 def sense(self, options):
360 pids=self.backquote_ssh(['pgrep','vbuild'],trash_err=True)
362 command=['ps','-o','pid,command'] + [ pid for pid in pids.split("\n") if pid]
363 ps_lines=self.backquote_ssh (command).split('\n')
364 for line in ps_lines:
365 if not line.strip() or line.find('PID')>=0: continue
366 m=BuildBox.matcher.match(line)
368 date=time.strftime('%Y-%m-%d',time.localtime(time.time()))
369 buildname=m.group('buildname').replace('@DATE@',date)
370 self.add_build (buildname,m.group('pid'))
372 m=BuildBox.matcher_building_vm.match(line)
374 # buildname is expansed here
375 self.add_build (buildname,m.group('pid'))
377 header('BuildBox.sense: command %r returned line that failed to match'%command)
378 header(">>%s<<"%line)
380 ############################################################
382 def __init__ (self, plcbox):
387 def set_timestamp (self,timestamp): self.timestamp=timestamp
388 def set_now (self): self.timestamp=int(time.time())
389 def pretty_timestamp (self): return time.strftime("%Y-%m-%d:%H-%M",time.localtime(self.timestamp))
391 class PlcVsInstance (PlcInstance):
392 def __init__ (self, plcbox, vservername, ctxid):
393 PlcInstance.__init__(self,plcbox)
394 self.vservername=vservername
398 return self.vservername.split('-')[-1]
399 def buildname (self):
400 return self.vservername.rsplit('-',2)[0]
403 msg="== %s =="%(self.vplcname())
404 msg += " [=%s]"%self.vservername
405 if self.ctxid==0: msg+=" not (yet?) running"
406 else: msg+=" (ctx=%s)"%self.ctxid
407 if self.timestamp: msg += " @ %s"%self.pretty_timestamp()
408 else: msg += " *unknown timestamp*"
412 msg="vserver stopping %s on %s"%(self.vservername,self.plc_box.hostname)
413 self.plc_box.run_ssh(['vserver',self.vservername,'stop'],msg)
414 self.plc_box.forget(self)
416 class PlcLxcInstance (PlcInstance):
417 # does lxc have a context id of any kind ?
418 def __init__ (self, plcbox, lxcname, pid):
419 PlcInstance.__init__(self, plcbox)
420 self.lxcname = lxcname
424 return self.lxcname.split('-')[-1]
425 def buildname (self):
426 return self.lxcname.rsplit('-',2)[0]
429 msg="== %s =="%(self.vplcname())
430 msg += " [=%s]"%self.lxcname
431 if self.pid==-1: msg+=" not (yet?) running"
432 else: msg+=" (pid=%s)"%self.pid
433 if self.timestamp: msg += " @ %s"%self.pretty_timestamp()
434 else: msg += " *unknown timestamp*"
438 command="rsync lxc-driver.sh %s:/root"%self.plc_box.hostname
439 commands.getstatusoutput(command)
440 msg="lxc container stopping %s on %s"%(self.lxcname,self.plc_box.hostname)
441 self.plc_box.run_ssh(['/root/lxc-driver.sh','-c','stop_lxc','-n',self.lxcname],msg)
442 self.plc_box.forget(self)
446 def __init__ (self, hostname, max_plcs):
447 Box.__init__(self,hostname)
448 self.plc_instances=[]
449 self.max_plcs=max_plcs
451 def free_slots (self):
452 return self.max_plcs - len(self.plc_instances)
454 # fill one slot even though this one is not started yet
455 def add_dummy (self, plcname):
456 dummy=PlcVsInstance(self,'dummy_'+plcname,0)
458 self.plc_instances.append(dummy)
460 def forget (self, plc_instance):
461 self.plc_instances.remove(plc_instance)
463 def reboot (self, options):
465 Box.reboot(self,options)
467 self.soft_reboot (options)
469 def list(self, verbose=False):
470 if not self.plc_instances:
471 header ('No plc running on %s'%(self.line()))
473 header ("Active plc VMs on %s"%self.line())
474 self.plc_instances.sort(timestamp_sort)
475 for p in self.plc_instances:
476 header (p.line(),banner=False)
479 self._uname=self.backquote_ssh(['uname','-r']).strip()
481 # expecting sense () to have filled self._uname
483 if hasattr(self,'_uname') and self._uname: return self._uname
484 return '*undef* uname'
486 class PlcVsBox (PlcBox):
488 def add_vserver (self,vservername,ctxid):
489 for plc in self.plc_instances:
490 if plc.vservername==vservername:
491 header("WARNING, duplicate myplc %s running on %s"%\
492 (vservername,self.hostname),banner=False)
494 self.plc_instances.append(PlcVsInstance(self,vservername,ctxid))
497 msg="%s [max=%d,free=%d, VS-based] (%s)"%(self.hostname, self.max_plcs,self.free_slots(),self.uname())
500 def plc_instance_by_vservername (self, vservername):
501 for p in self.plc_instances:
502 if p.vservername==vservername: return p
505 def soft_reboot (self, options):
506 self.run_ssh(['service','util-vserver','stop'],"Stopping all running vservers on %s"%(self.hostname,),
507 dry_run=options.dry_run)
509 def sense (self, options):
512 # try to find fullname (vserver_stat truncates to a ridiculously short name)
513 # fetch the contexts for all vservers on that box
514 map_command=['grep','.','/etc/vservers/*/context','/dev/null',]
515 context_map=self.backquote_ssh (map_command)
516 # at this point we have a set of lines like
517 # /etc/vservers/2010.01.20--k27-f12-32-vplc03/context:40144
519 for map_line in context_map.split("\n"):
520 if not map_line: continue
521 [path,xid] = map_line.split(':')
522 ctx_dict[xid]=os.path.basename(os.path.dirname(path))
523 # at this point ctx_id maps context id to vservername
525 command=['vserver-stat']
526 vserver_stat = self.backquote_ssh (command)
527 for vserver_line in vserver_stat.split("\n"):
528 if not vserver_line: continue
529 context=vserver_line.split()[0]
530 if context=="CTX": continue
532 longname=ctx_dict[context]
533 self.add_vserver(longname,context)
535 print 'WARNING: found ctx %s in vserver_stat but was unable to figure a corresp. vserver'%context
538 running_vsnames = [ i.vservername for i in self.plc_instances ]
539 command= ['grep','.']
540 command += ['/vservers/%s.timestamp'%vs for vs in running_vsnames]
541 command += ['/dev/null']
542 ts_lines=self.backquote_ssh(command,trash_err=True).split('\n')
543 for ts_line in ts_lines:
544 if not ts_line.strip(): continue
545 # expect /vservers/<vservername>.timestamp:<timestamp>
547 (ts_file,timestamp)=ts_line.split(':')
548 ts_file=os.path.basename(ts_file)
549 (vservername,_)=os.path.splitext(ts_file)
550 timestamp=int(timestamp)
551 p=self.plc_instance_by_vservername(vservername)
553 print 'WARNING zombie plc',self.hostname,ts_line
554 print '... was expecting',vservername,'in',[i.vservername for i in self.plc_instances]
556 p.set_timestamp(timestamp)
557 except: print 'WARNING, could not parse ts line',ts_line
560 class PlcLxcBox (PlcBox):
562 def add_lxc (self,lxcname,pid):
563 for plc in self.plc_instances:
564 if plc.lxcname==lxcname:
565 header("WARNING, duplicate myplc %s running on %s"%\
566 (lxcname,self.hostname),banner=False)
568 self.plc_instances.append(PlcLxcInstance(self,lxcname,pid))
571 # a line describing the box
573 msg="%s [max=%d,free=%d, LXC-based] (%s)"%(self.hostname, self.max_plcs,self.free_slots(),self.uname())
576 def plc_instance_by_lxcname (self, lxcname):
577 for p in self.plc_instances:
578 if p.lxcname==lxcname: return p
581 # essentially shutdown all running containers
582 def soft_reboot (self, options):
583 command="rsync lxc-driver.sh %s:/root"%self.hostname
584 commands.getstatusoutput(command)
585 self.run_ssh(['/root/lxc-driver.sh','-c','stop_all'],"Stopping all running lxc containers on %s"%(self.hostname,),
586 dry_run=options.dry_run)
589 # sense is expected to fill self.plc_instances with PlcLxcInstance's
590 # to describe the currently running VM's
591 # as well as to call self.get_uname() once
592 def sense (self, options):
595 command="rsync lxc-driver.sh %s:/root"%self.hostname
596 commands.getstatusoutput(command)
597 command=['/root/lxc-driver.sh','-c','sense_all']
598 lxc_stat = self.backquote_ssh (command)
599 for lxc_line in lxc_stat.split("\n"):
600 if not lxc_line: continue
601 lxcname=lxc_line.split(";")[0]
602 pid=lxc_line.split(";")[1]
603 timestamp=lxc_line.split(";")[2]
604 self.add_lxc(lxcname,pid)
605 timestamp=int(timestamp)
606 p=self.plc_instance_by_lxcname(lxcname)
608 print 'WARNING zombie plc',self.hostname,lxcname
609 print '... was expecting',lxcname,'in',[i.lxcname for i in self.plc_instances]
611 p.set_timestamp(timestamp)
613 ############################################################
615 def __init__ (self, nodename, pid, qemubox):
616 self.nodename=nodename
618 self.qemu_box=qemubox
623 def set_buildname (self,buildname): self.buildname=buildname
624 def set_timestamp (self,timestamp): self.timestamp=timestamp
625 def set_now (self): self.timestamp=int(time.time())
626 def pretty_timestamp (self): return time.strftime("%Y-%m-%d:%H-%M",time.localtime(self.timestamp))
629 msg = "== %s =="%(short_hostname(self.nodename))
630 msg += " [=%s]"%self.buildname
631 if self.pid: msg += " (pid=%s)"%self.pid
632 else: msg += " not (yet?) running"
633 if self.timestamp: msg += " @ %s"%self.pretty_timestamp()
634 else: msg += " *unknown timestamp*"
639 print "cannot kill qemu %s with pid==0"%self.nodename
641 msg="Killing qemu %s with pid=%s on box %s"%(self.nodename,self.pid,self.qemu_box.hostname)
642 self.qemu_box.run_ssh(['kill',"%s"%self.pid],msg)
643 self.qemu_box.forget(self)
647 def __init__ (self, hostname, max_qemus):
648 Box.__init__(self,hostname)
649 self.qemu_instances=[]
650 self.max_qemus=max_qemus
652 def add_node (self,nodename,pid):
653 for qemu in self.qemu_instances:
654 if qemu.nodename==nodename:
655 header("WARNING, duplicate qemu %s running on %s"%\
656 (nodename,self.hostname), banner=False)
658 self.qemu_instances.append(QemuInstance(nodename,pid,self))
660 def forget (self, qemu_instance):
661 self.qemu_instances.remove(qemu_instance)
663 # fill one slot even though this one is not started yet
664 def add_dummy (self, nodename):
665 dummy=QemuInstance('dummy_'+nodename,0,self)
667 self.qemu_instances.append(dummy)
670 msg="%s [max=%d,free=%d] (%s)"%(self.hostname, self.max_qemus,self.free_slots(),self.driver())
673 def list(self, verbose=False):
674 if not self.qemu_instances:
675 header ('No qemu process on %s'%(self.line()))
677 header ("Active qemu processes on %s"%(self.line()))
678 self.qemu_instances.sort(timestamp_sort)
679 for q in self.qemu_instances:
680 header (q.line(),banner=False)
682 def free_slots (self):
683 return self.max_qemus - len(self.qemu_instances)
686 if hasattr(self,'_driver') and self._driver: return self._driver
687 return '*undef* driver'
689 def qemu_instance_by_pid (self,pid):
690 for q in self.qemu_instances:
691 if q.pid==pid: return q
694 def qemu_instance_by_nodename_buildname (self,nodename,buildname):
695 for q in self.qemu_instances:
696 if q.nodename==nodename and q.buildname==buildname:
700 def reboot (self, options):
702 Box.reboot(self,options)
704 self.run_ssh(['pkill','qemu'],"Killing qemu instances",
705 dry_run=options.dry_run)
707 matcher=re.compile("\s*(?P<pid>[0-9]+).*-cdrom\s+(?P<nodename>[^\s]+)\.iso")
708 def sense(self, options):
710 modules=self.backquote_ssh(['lsmod']).split('\n')
711 self._driver='*NO kqemu/kvm_intel MODULE LOADED*'
712 for module in modules:
713 if module.find('kqemu')==0:
714 self._driver='kqemu module loaded'
715 # kvm might be loaded without kvm_intel (we dont have AMD)
716 elif module.find('kvm_intel')==0:
717 self._driver='kvm_intel module loaded'
718 ########## find out running pids
719 pids=self.backquote_ssh(['pgrep','qemu'])
721 command=['ps','-o','pid,command'] + [ pid for pid in pids.split("\n") if pid]
722 ps_lines = self.backquote_ssh (command).split("\n")
723 for line in ps_lines:
724 if not line.strip() or line.find('PID') >=0 : continue
725 m=QemuBox.matcher.match(line)
727 self.add_node (m.group('nodename'),m.group('pid'))
729 header('QemuBox.sense: command %r returned line that failed to match'%command)
730 header(">>%s<<"%line)
731 ########## retrieve alive instances and map to build
733 command=['grep','.','*/*/qemu.pid','/dev/null']
734 pid_lines=self.backquote_ssh(command,trash_err=True).split('\n')
735 for pid_line in pid_lines:
736 if not pid_line.strip(): continue
737 # expect <build>/<nodename>/qemu.pid:<pid>pid
739 (buildname,nodename,tail)=pid_line.split('/')
740 (_,pid)=tail.split(':')
741 q=self.qemu_instance_by_pid (pid)
743 q.set_buildname(buildname)
744 live_builds.append(buildname)
745 except: print 'WARNING, could not parse pid line',pid_line
746 # retrieve timestamps
747 if not live_builds: return
748 command= ['grep','.']
749 command += ['%s/*/timestamp'%b for b in live_builds]
750 command += ['/dev/null']
751 ts_lines=self.backquote_ssh(command,trash_err=True).split('\n')
752 for ts_line in ts_lines:
753 if not ts_line.strip(): continue
754 # expect <build>/<nodename>/timestamp:<timestamp>
756 (buildname,nodename,tail)=ts_line.split('/')
757 nodename=nodename.replace('qemu-','')
758 (_,timestamp)=tail.split(':')
759 timestamp=int(timestamp)
760 q=self.qemu_instance_by_nodename_buildname(nodename,buildname)
762 print 'WARNING zombie qemu',self.hostname,ts_line
763 print '... was expecting (',short_hostname(nodename),buildname,') in',\
764 [ (short_hostname(i.nodename),i.buildname) for i in self.qemu_instances ]
766 q.set_timestamp(timestamp)
767 except: print 'WARNING, could not parse ts line',ts_line
771 def __init__ (self, buildname, pid=0):
773 if pid!=0: self.pid.append(pid)
774 self.buildname=buildname
781 def set_timestamp (self,timestamp): self.timestamp=timestamp
782 def set_now (self): self.timestamp=int(time.time())
783 def pretty_timestamp (self): return time.strftime("%Y-%m-%d:%H-%M",time.localtime(self.timestamp))
785 def is_running (self): return len(self.pids) != 0
787 def add_pid (self,pid):
788 self.pids.append(pid)
789 def set_broken (self, plcindex, step):
790 self.broken_steps.append ( (plcindex, step,) )
794 if self.pids: double='*'+double[1]
795 if self.broken_steps: double=double[0]+'B'
796 msg = " %s %s =="%(double,self.buildname)
797 if not self.pids: pass
798 elif len(self.pids)==1: msg += " (pid=%s)"%self.pids[0]
799 else: msg += " !!!pids=%s!!!"%self.pids
800 msg += " @%s"%self.pretty_timestamp()
801 if self.broken_steps:
802 msg += " [BROKEN=" + " ".join( [ "%s@%s"%(s,i) for (i,s) in self.broken_steps ] ) + "]"
806 def __init__ (self,hostname):
807 Box.__init__(self,hostname)
809 self.test_instances=[]
811 def reboot (self, options):
812 # can't reboot a vserver VM
813 self.run_ssh (['pkill','run_log'],"Terminating current runs",
814 dry_run=options.dry_run)
815 self.run_ssh (['rm','-f',Starting.location],"Cleaning %s"%Starting.location,
816 dry_run=options.dry_run)
818 def get_test (self, buildname):
819 for i in self.test_instances:
820 if i.buildname==buildname: return i
822 # we scan ALL remaining test results, even the ones not running
823 def add_timestamp (self, buildname, timestamp):
824 i=self.get_test(buildname)
826 i.set_timestamp(timestamp)
828 i=TestInstance(buildname,0)
829 i.set_timestamp(timestamp)
830 self.test_instances.append(i)
832 def add_running_test (self, pid, buildname):
833 i=self.get_test(buildname)
835 self.test_instances.append (TestInstance (buildname,pid))
838 print "WARNING: 2 concurrent tests run on same build %s"%buildname
841 def add_broken (self, buildname, plcindex, step):
842 i=self.get_test(buildname)
844 i=TestInstance(buildname)
845 self.test_instances.append(i)
846 i.set_broken(plcindex, step)
848 matcher_proc=re.compile (".*/proc/(?P<pid>[0-9]+)/cwd.*/root/(?P<buildname>[^/]+)$")
849 matcher_grep=re.compile ("/root/(?P<buildname>[^/]+)/logs/trace.*:TRACE:\s*(?P<plcindex>[0-9]+).*step=(?P<step>\S+).*")
850 def sense (self, options):
853 self.starting_ips=[x for x in self.backquote_ssh(['cat',Starting.location], trash_err=True).strip().split('\n') if x]
855 # scan timestamps on all tests
856 # this is likely to not invoke ssh so we need to be a bit smarter to get * expanded
857 # xxx would make sense above too
858 command=['bash','-c',"grep . /root/*/timestamp /dev/null"]
859 ts_lines=self.backquote_ssh(command,trash_err=True).split('\n')
860 for ts_line in ts_lines:
861 if not ts_line.strip(): continue
862 # expect /root/<buildname>/timestamp:<timestamp>
864 (ts_file,timestamp)=ts_line.split(':')
865 ts_file=os.path.dirname(ts_file)
866 buildname=os.path.basename(ts_file)
867 timestamp=int(timestamp)
868 t=self.add_timestamp(buildname,timestamp)
869 except: print 'WARNING, could not parse ts line',ts_line
871 command=['bash','-c',"grep KO /root/*/logs/trace-* /dev/null" ]
872 trace_lines=self.backquote_ssh (command).split('\n')
873 for line in trace_lines:
874 if not line.strip(): continue
875 m=TestBox.matcher_grep.match(line)
877 buildname=m.group('buildname')
878 plcindex=m.group('plcindex')
880 self.add_broken(buildname,plcindex, step)
882 header("TestBox.sense: command %r returned line that failed to match\n%s"%(command,line))
883 header(">>%s<<"%line)
885 pids = self.backquote_ssh (['pgrep','run_log'],trash_err=True)
887 command=['ls','-ld'] + ["/proc/%s/cwd"%pid for pid in pids.split("\n") if pid]
888 ps_lines=self.backquote_ssh (command).split('\n')
889 for line in ps_lines:
890 if not line.strip(): continue
891 m=TestBox.matcher_proc.match(line)
894 buildname=m.group('buildname')
895 self.add_running_test(pid, buildname)
897 header("TestBox.sense: command %r returned line that failed to match\n%s"%(command,line))
898 header(">>%s<<"%line)
902 return "%s (%s)"%(self.hostname,self.uptime())
904 def list (self, verbose=False):
905 # verbose shows all tests
907 instances = self.test_instances
910 instances = [ i for i in self.test_instances if i.is_running() ]
911 msg="known running tests"
914 header ("No %s on %s"%(msg,self.line()))
916 header ("%s on %s"%(msg,self.line()))
917 instances.sort(timestamp_sort)
918 for i in instances: print i.line()
919 # show 'starting' regardless of verbose
920 if self.starting_ips:
921 header ("Starting IP addresses on %s"%self.line())
922 self.starting_ips.sort()
923 for starting in self.starting_ips: print starting
925 header ("Empty 'starting' on %s"%self.line())
927 ############################################################
932 def __init__ (self, plcs_on_vs=True, plcs_on_lxc=False):
933 self.options=Options()
934 self.options.dry_run=False
935 self.options.verbose=False
936 self.options.reboot=False
937 self.options.soft=False
938 self.test_box = TestBox (self.test_box_spec())
939 self.build_boxes = [ BuildBox(h) for h in self.build_boxes_spec() ]
940 # for compat with older LocalSubstrate
942 self.plc_vs_boxes = [ PlcVsBox (h,m) for (h,m) in self.plc_vs_boxes_spec ()]
943 self.plc_lxc_boxes = [ PlcLxcBox (h,m) for (h,m) in self.plc_lxc_boxes_spec ()]
945 self.plc_vs_boxes = [ PlcVsBox (h,m) for (h,m) in self.plc_boxes_spec ()]
946 self.plc_lxc_boxes = [ ]
947 self.qemu_boxes = [ QemuBox (h,m) for (h,m) in self.qemu_boxes_spec ()]
950 self.vplc_pool = Pool (self.vplc_ips(),"for vplcs",self)
951 self.vnode_pool = Pool (self.vnode_ips(),"for vnodes",self)
953 self.rescope (plcs_on_vs=plcs_on_vs, plcs_on_lxc=plcs_on_lxc)
955 # which plc boxes are we interested in ?
956 def rescope (self, plcs_on_vs, plcs_on_lxc):
958 if plcs_on_vs: self.plc_boxes += self.plc_vs_boxes
959 if plcs_on_lxc: self.plc_boxes += self.plc_lxc_boxes
960 self.default_boxes = self.plc_boxes + self.qemu_boxes
961 self.all_boxes = self.build_boxes + [ self.test_box ] + self.plc_boxes + self.qemu_boxes
963 def summary_line (self):
965 msg += " %d vp"%len(self.plc_vs_boxes)
966 msg += " %d xp"%len(self.plc_lxc_boxes)
967 msg += " %d tried plc boxes"%len(self.plc_boxes)
971 def fqdn (self, hostname):
972 if hostname.find('.')<0: return "%s.%s"%(hostname,self.domain())
975 # return True if actual sensing takes place
976 def sense (self,force=False):
977 if self._sensed and not force: return False
978 print 'Sensing local substrate...',
979 for b in self.default_boxes: b.sense(self.options)
984 def list (self, verbose=False):
985 for b in self.default_boxes:
988 def add_dummy_plc (self, plc_boxname, plcname):
989 for pb in self.plc_boxes:
990 if pb.hostname==plc_boxname:
991 pb.add_dummy(plcname)
993 def add_dummy_qemu (self, qemu_boxname, qemuname):
994 for qb in self.qemu_boxes:
995 if qb.hostname==qemu_boxname:
996 qb.add_dummy(qemuname)
999 def add_starting_dummy (self, bname, vname):
1000 return self.add_dummy_plc (bname, vname) or self.add_dummy_qemu (bname, vname)
1003 def provision (self,plcs,options):
1005 # attach each plc to a plc box and an IP address
1006 plcs = [ self.provision_plc (plc,options) for plc in plcs ]
1007 # attach each node/qemu to a qemu box with an IP address
1008 plcs = [ self.provision_qemus (plc,options) for plc in plcs ]
1009 # update the SFA spec accordingly
1010 plcs = [ self.localize_sfa_rspec(plc,options) for plc in plcs ]
1013 except Exception, e:
1014 print '* Could not provision this test on current substrate','--',e,'--','exiting'
1015 traceback.print_exc()
1018 # it is expected that a couple of options like ips_bplc and ips_vplc
1019 # are set or unset together
1021 def check_options (x,y):
1022 if not x and not y: return True
1023 return len(x)==len(y)
1025 # find an available plc box (or make space)
1026 # and a free IP address (using options if present)
1027 def provision_plc (self, plc, options):
1029 assert Substrate.check_options (options.ips_bplc, options.ips_vplc)
1031 #### let's find an IP address for that plc
1033 if options.ips_vplc:
1035 # we don't check anything here,
1036 # it is the caller's responsability to cleanup and make sure this makes sense
1037 plc_boxname = options.ips_bplc.pop()
1038 vplc_hostname=options.ips_vplc.pop()
1040 if self.sense(): self.list()
1043 # try to find an available IP
1044 self.vplc_pool.sense()
1045 couple=self.vplc_pool.next_free()
1047 (vplc_hostname,unused)=couple
1048 #### we need to find one plc box that still has a slot
1050 # use the box that has max free spots for load balancing
1051 for pb in self.plc_boxes:
1052 free=pb.free_slots()
1054 plc_boxname=pb.hostname
1056 # if there's no available slot in the plc_boxes, or we need a free IP address
1057 # make space by killing the oldest running instance
1058 if not plc_boxname or not vplc_hostname:
1059 # find the oldest of all our instances
1060 all_plc_instances=reduce(lambda x, y: x+y,
1061 [ pb.plc_instances for pb in self.plc_boxes ],
1063 all_plc_instances.sort(timestamp_sort)
1065 plc_instance_to_kill=all_plc_instances[0]
1068 if not plc_boxname: msg += " PLC boxes are full"
1069 if not vplc_hostname: msg += " vplc IP pool exhausted"
1070 msg += " %s"%self.summary_line()
1071 raise Exception,"Cannot make space for a PLC instance:"+msg
1072 freed_plc_boxname=plc_instance_to_kill.plc_box.hostname
1073 freed_vplc_hostname=plc_instance_to_kill.vplcname()
1074 message='killing oldest plc instance = %s on %s'%(plc_instance_to_kill.line(),
1076 plc_instance_to_kill.kill()
1077 # use this new plcbox if that was the problem
1079 plc_boxname=freed_plc_boxname
1080 # ditto for the IP address
1081 if not vplc_hostname:
1082 vplc_hostname=freed_vplc_hostname
1083 # record in pool as mine
1084 self.vplc_pool.set_mine(vplc_hostname)
1087 self.add_dummy_plc(plc_boxname,plc['name'])
1088 vplc_ip = self.vplc_pool.get_ip(vplc_hostname)
1089 self.vplc_pool.add_starting(vplc_hostname, plc_boxname)
1091 #### compute a helpful vserver name
1092 # remove domain in hostname
1093 vplc_short = short_hostname(vplc_hostname)
1094 vservername = "%s-%d-%s" % (options.buildname,plc['index'],vplc_short)
1095 plc_name = "%s_%s"%(plc['name'],vplc_short)
1097 utils.header( 'PROVISION plc %s in box %s at IP %s as %s'%\
1098 (plc['name'],plc_boxname,vplc_hostname,vservername))
1100 #### apply in the plc_spec
1102 # label=options.personality.replace("linux","")
1103 mapper = {'plc': [ ('*' , {'host_box':plc_boxname,
1104 # 'name':'%s-'+label,
1106 'vservername':vservername,
1107 'vserverip':vplc_ip,
1108 'PLC_DB_HOST':vplc_hostname,
1109 'PLC_API_HOST':vplc_hostname,
1110 'PLC_BOOT_HOST':vplc_hostname,
1111 'PLC_WWW_HOST':vplc_hostname,
1112 'PLC_NET_DNS1' : self.network_settings() [ 'interface_fields:dns1' ],
1113 'PLC_NET_DNS2' : self.network_settings() [ 'interface_fields:dns2' ],
1118 # mappers only work on a list of plcs
1119 return TestMapper([plc],options).map(mapper)[0]
1122 def provision_qemus (self, plc, options):
1124 assert Substrate.check_options (options.ips_bnode, options.ips_vnode)
1126 test_mapper = TestMapper ([plc], options)
1127 nodenames = test_mapper.node_names()
1129 for nodename in nodenames:
1131 if options.ips_vnode:
1132 # as above, it's a rerun, take it for granted
1133 qemu_boxname=options.ips_bnode.pop()
1134 vnode_hostname=options.ips_vnode.pop()
1136 if self.sense(): self.list()
1139 # try to find an available IP
1140 self.vnode_pool.sense()
1141 couple=self.vnode_pool.next_free()
1143 (vnode_hostname,unused)=couple
1144 # find a physical box
1146 # use the box that has max free spots for load balancing
1147 for qb in self.qemu_boxes:
1148 free=qb.free_slots()
1150 qemu_boxname=qb.hostname
1152 # if we miss the box or the IP, kill the oldest instance
1153 if not qemu_boxname or not vnode_hostname:
1154 # find the oldest of all our instances
1155 all_qemu_instances=reduce(lambda x, y: x+y,
1156 [ qb.qemu_instances for qb in self.qemu_boxes ],
1158 all_qemu_instances.sort(timestamp_sort)
1160 qemu_instance_to_kill=all_qemu_instances[0]
1163 if not qemu_boxname: msg += " QEMU boxes are full"
1164 if not vnode_hostname: msg += " vnode IP pool exhausted"
1165 msg += " %s"%self.summary_line()
1166 raise Exception,"Cannot make space for a QEMU instance:"+msg
1167 freed_qemu_boxname=qemu_instance_to_kill.qemu_box.hostname
1168 freed_vnode_hostname=short_hostname(qemu_instance_to_kill.nodename)
1170 message='killing oldest qemu node = %s on %s'%(qemu_instance_to_kill.line(),
1172 qemu_instance_to_kill.kill()
1173 # use these freed resources where needed
1174 if not qemu_boxname:
1175 qemu_boxname=freed_qemu_boxname
1176 if not vnode_hostname:
1177 vnode_hostname=freed_vnode_hostname
1178 self.vnode_pool.set_mine(vnode_hostname)
1180 self.add_dummy_qemu (qemu_boxname,vnode_hostname)
1181 mac=self.vnode_pool.retrieve_userdata(vnode_hostname)
1182 ip=self.vnode_pool.get_ip (vnode_hostname)
1183 self.vnode_pool.add_starting(vnode_hostname,qemu_boxname)
1185 vnode_fqdn = self.fqdn(vnode_hostname)
1186 nodemap={'host_box':qemu_boxname,
1187 'node_fields:hostname':vnode_fqdn,
1188 'interface_fields:ip':ip,
1189 'ipaddress_fields:ip_addr':ip,
1190 'interface_fields:mac':mac,
1192 nodemap.update(self.network_settings())
1193 maps.append ( (nodename, nodemap) )
1195 utils.header("PROVISION node %s in box %s at IP %s with MAC %s"%\
1196 (nodename,qemu_boxname,vnode_hostname,mac))
1198 return test_mapper.map({'node':maps})[0]
1200 def localize_sfa_rspec (self,plc,options):
1202 plc['sfa']['SFA_REGISTRY_HOST'] = plc['PLC_DB_HOST']
1203 plc['sfa']['SFA_AGGREGATE_HOST'] = plc['PLC_DB_HOST']
1204 plc['sfa']['SFA_SM_HOST'] = plc['PLC_DB_HOST']
1205 plc['sfa']['SFA_DB_HOST'] = plc['PLC_DB_HOST']
1206 plc['sfa']['SFA_PLC_URL'] = 'https://' + plc['PLC_API_HOST'] + ':443/PLCAPI/'
1209 #################### release:
1210 def release (self,options):
1211 self.vplc_pool.release_my_starting()
1212 self.vnode_pool.release_my_starting()
1215 #################### show results for interactive mode
1216 def get_box (self,boxname):
1217 for b in self.build_boxes + self.plc_boxes + self.qemu_boxes + [self.test_box] :
1218 if b.shortname()==boxname:
1220 print "Could not find box %s"%boxname
1223 def list_boxes(self,box_or_names):
1225 for box in box_or_names:
1226 if not isinstance(box,Box): box=self.get_box(box)
1227 if not box: continue
1228 box.sense(self.options)
1230 for box in box_or_names:
1231 if not isinstance(box,Box): box=self.get_box(box)
1232 if not box: continue
1233 box.list(self.options.verbose)
1235 def reboot_boxes(self,box_or_names):
1236 for box in box_or_names:
1237 if not isinstance(box,Box): box=self.get_box(box)
1238 if not box: continue
1239 box.reboot(self.options)
1241 ####################
1242 # can be run as a utility to probe/display/manage the local infrastructure
1244 parser=OptionParser()
1245 parser.add_option ('-r',"--reboot",action='store_true',dest='reboot',default=False,
1246 help='reboot mode (use shutdown -r)')
1247 parser.add_option ('-s',"--soft",action='store_true',dest='soft',default=False,
1248 help='soft mode for reboot (vserver stop or kill qemus)')
1249 parser.add_option ('-t',"--testbox",action='store_true',dest='testbox',default=False,
1250 help='add test box')
1251 parser.add_option ('-b',"--build",action='store_true',dest='builds',default=False,
1252 help='add build boxes')
1253 parser.add_option ('-p',"--plc",action='store_true',dest='plcs',default=False,
1254 help='add plc boxes')
1255 parser.add_option ('-q',"--qemu",action='store_true',dest='qemus',default=False,
1256 help='add qemu boxes')
1257 parser.add_option ('-a',"--all",action='store_true',dest='all',default=False,
1258 help='address all known boxes, like -b -t -p -q')
1259 parser.add_option ('-v',"--verbose",action='store_true',dest='verbose',default=False,
1260 help='verbose mode')
1261 parser.add_option ('-n',"--dry_run",action='store_true',dest='dry_run',default=False,
1262 help='dry run mode')
1263 (self.options,args)=parser.parse_args()
1265 self.rescope (plcs_on_vs=True, plcs_on_lxc=True)
1268 if self.options.testbox: boxes += [self.test_box]
1269 if self.options.builds: boxes += self.build_boxes
1270 if self.options.plcs: boxes += self.plc_boxes
1271 if self.options.qemus: boxes += self.qemu_boxes
1272 if self.options.all: boxes += self.all_boxes
1274 # default scope is -b -p -q -t
1276 boxes = self.build_boxes + self.plc_boxes + self.qemu_boxes + [self.test_box]
1278 if self.options.reboot: self.reboot_boxes (boxes)
1279 else: self.list_boxes (boxes)