print message
sys.stdout.flush()
-def timestamp_sort(o1,o2):
- if not o1.timestamp: return -1
- elif not o2.timestamp: return 1
- else: return o2.timestamp-o1.timestamp
+def timestamp_sort(o1,o2): return o1.timestamp-o2.timestamp
####################
# pool class
def line(self):
return "Pooled %s (%s) -> %s"%(self.hostname,self.userdata, self.status)
+
+ def char (self):
+ if self.status==None: return '?'
+ elif self.status=='busy': return '*'
+ elif self.status=='free': return '.'
+ elif self.status=='mine': return 'M'
+ elif self.status=='starting': return 'S'
+
def get_ip(self):
if self.ip: return self.ip
ip=socket.gethostbyname(self.hostname)
self.pool= [ PoolItem (h,u) for (h,u) in tuples ]
self.message=message
- def sense (self):
- print 'Checking IP pool',self.message,
- for item in self.pool:
- if item.status is not None:
- continue
- if self.check_ping (item.hostname):
- item.status='busy'
- else:
- item.status='free'
- print 'Done'
-
def list (self):
for i in self.pool: print i.line()
- def retrieve_userdata (self, hostname):
+ def line (self):
+ line=self.message
+ for i in self.pool: line += ' ' + i.char()
+ return line
+
+ def _item (self, hostname):
for i in self.pool:
- if i.hostname==hostname: return i.userdata
- return None
+ if i.hostname==hostname: return i
+ raise Exception ("Could not locate hostname %s in pool %s"%(hostname,self.message))
+
+ def retrieve_userdata (self, hostname):
+ return self._item(hostname).userdata
def get_ip (self, hostname):
- # use cached if in pool
- for i in self.pool:
- if i.hostname==hostname: return i.get_ip()
- # otherwise just ask dns again
- return socket.gethostbyname(hostname)
+ try: return self._item(hostname).get_ip()
+ except: return socket.gethostbyname(hostname)
+
+ def set_mine (self, hostname):
+ try:
+ self._item(hostname).status='mine'
+ except:
+ print 'WARNING: host %s not found in IP pool %s'%(hostname,self.message)
def next_free (self):
for i in self.pool:
if i.status == 'free':
i.status='mine'
return (i.hostname,i.userdata)
- raise Exception,"No IP address available in pool %s"%self.message
-
- # OS-dependent ping option (support for macos, for convenience)
- ping_timeout_option = None
- # checks whether a given hostname/ip responds to ping
- def check_ping (self,hostname):
- if not Pool.ping_timeout_option:
- (status,osname) = commands.getstatusoutput("uname -s")
- if status != 0:
- raise Exception, "TestPool: Cannot figure your OS name"
- if osname == "Linux":
- Pool.ping_timeout_option="-w"
- elif osname == "Darwin":
- Pool.ping_timeout_option="-t"
-
- command="ping -c 1 %s 1 %s"%(Pool.ping_timeout_option,hostname)
- (status,output) = commands.getstatusoutput(command)
- if status==0: print '+',
- else: print '-',
- return status == 0
+ return None
# the place were other test instances tell about their not-yet-started
# instances, that go undetected through sensing
for i in self.pool:
if i.hostname==name: i.status='mine'
+ # we load this after actual sensing;
def load_starting (self):
try: items=[line.strip() for line in file(Pool.starting).readlines()]
except: items=[]
- for item in items:
- for i in self.pool:
- if i.hostname==item and i.status==None: i.status='starting'
+ for i in self.pool:
+ if i.hostname in items:
+ if i.status=='free' : i.status='starting'
def release_my_starting (self):
for i in self.pool:
if item != name: f.write(item+'\n')
f.close()
+ ##########
+ def _sense (self):
+ for item in self.pool:
+ if item.status is not None:
+ continue
+ if self.check_ping (item.hostname):
+ item.status='busy'
+ else:
+ item.status='free'
+
+ def sense (self):
+ print 'Sensing IP pool',self.message,
+ self._sense()
+ print 'Done'
+ self.load_starting()
+ print 'After starting: IP pool'
+ print self.line()
+
+ # OS-dependent ping option (support for macos, for convenience)
+ ping_timeout_option = None
+ # returns True when a given hostname/ip responds to ping
+ def check_ping (self,hostname):
+ if not Pool.ping_timeout_option:
+ (status,osname) = commands.getstatusoutput("uname -s")
+ if status != 0:
+ raise Exception, "TestPool: Cannot figure your OS name"
+ if osname == "Linux":
+ Pool.ping_timeout_option="-w"
+ elif osname == "Darwin":
+ Pool.ping_timeout_option="-t"
+
+ command="ping -c 1 %s 1 %s"%(Pool.ping_timeout_option,hostname)
+ (status,output) = commands.getstatusoutput(command)
+ if status==0: print '*',
+ else: print '.',
+ return status == 0
+
####################
class Box:
def __init__ (self,hostname):
self.hostname=hostname
- def simple_hostname (self):
+ def short_hostname (self):
return self.hostname.split('.')[0]
def test_ssh (self): return TestSsh(self.hostname,username='root',unknown_host=False)
def reboot (self):
def backquote (self, argv, trash_err=False):
if not trash_err:
- return subprocess.Popen(argv,stdout=subprocess.PIPE).communicate()[0]
+ result= subprocess.Popen(argv,stdout=subprocess.PIPE).communicate()[0]
else:
- return subprocess.Popen(argv,stdout=subprocess.PIPE,stderr=file('/dev/null','w')).communicate()[0]
+ result= subprocess.Popen(argv,stdout=subprocess.PIPE,stderr=file('/dev/null','w')).communicate()[0]
+ return result
def backquote_ssh (self, argv, trash_err=False):
# first probe the ssh link
for line in ps_lines:
if not line.strip() or line.find('PID')>=0: continue
m=BuildBox.matcher.match(line)
- if m: self.add_build (m.group('buildname'),m.group('pid'))
+ if m:
+ date=time.strftime('%Y-%m-%d',time.localtime(time.time()))
+ buildname=m.group('buildname').replace('@DATE@',date)
+ self.add_build (buildname,m.group('pid'))
else: header('command %r returned line that failed to match'%command)
############################################################
self.ctxid=ctxid
self.plc_box=plcbox
# unknown yet
- self.timestamp=None
+ self.timestamp=0
def set_timestamp (self,timestamp): self.timestamp=timestamp
def set_now (self): self.timestamp=int(time.time())
def pretty_timestamp (self): return time.strftime("%Y-%m-%d:%H-%M",time.localtime(self.timestamp))
+ def vplcname (self):
+ return self.vservername.split('-')[-1]
+
def line (self):
msg="== %s == (ctx=%s)"%(self.vservername,self.ctxid)
if self.timestamp: msg += " @ %s"%self.pretty_timestamp()
else: msg += " *unknown timestamp*"
- if self.ctxid==0: msg+=" not (yet?) running"
+ if self.ctxid==0: msg+=" not (yet?) running"
return msg
def kill (self):
self.add_vserver(longname,context)
# print self.margin_outline(self.vplcname(longname)),"%(vserver_line)s [=%(longname)s]"%locals()
- # scan timestamps
- running_ctx_ids = [ i.ctxid for i in self.plc_instances ]
+ # scan timestamps
+ running_vsnames = [ i.vservername for i in self.plc_instances ]
command= ['grep','.']
- command += ['/vservers/%s/timestamp'%b for b in running_ctx_ids]
+ command += ['/vservers/%s/timestamp'%vs for vs in running_vsnames]
command += ['/dev/null']
ts_lines=self.backquote_ssh(command,trash_err=True).split('\n')
for ts_line in ts_lines:
(_,__,vservername,tail)=ts_line.split('/')
(_,timestamp)=tail.split(':')
timestamp=int(timestamp)
- q=self.plc_instance_by_vservername(vservername)
- if not q:
+ p=self.plc_instance_by_vservername(vservername)
+ if not p:
print 'WARNING unattached plc instance',ts_line
- print 'was expeting to find',vservername,'in',[i.vservername for i in self.plc_instances]
+ print 'was expecting to find',vservername,'in',[i.vservername for i in self.plc_instances]
continue
- q.set_timestamp(timestamp)
+ p.set_timestamp(timestamp)
except: print 'WARNING, could not parse ts line',ts_line
self.qemu_box=qemubox
# not known yet
self.buildname=None
- self.timestamp=None
+ self.timestamp=0
def set_buildname (self,buildname): self.buildname=buildname
def set_timestamp (self,timestamp): self.timestamp=timestamp
else: msg += " *unknown build*"
if self.timestamp: msg += " @ %s"%self.pretty_timestamp()
else: msg += " *unknown timestamp*"
- if self.pid: msg += "pid=%s"%self.pid
+ if self.pid: msg += " pid=%s"%self.pid
else: msg += " not (yet?) running"
return msg
def kill(self):
- if self.pid==0: print "cannot kill qemu %s with pid==0"%self.nodename
+ if self.pid==0:
+ print "cannot kill qemu %s with pid==0"%self.nodename
+ return
msg="Killing qemu %s with pid=%s on box %s"%(self.nodename,self.pid,self.qemu_box.hostname)
self.qemu_box.run_ssh(['kill',"%s"%self.pid],msg)
self.qemu_box.forget(self)
class Substrate:
- def test (self):
- self.sense()
-
def __init__ (self):
self.options=Options()
self.options.dry_run=False
self.vplc_pool = Pool (self.vplc_ips(),"for vplcs")
self.vnode_pool = Pool (self.vnode_ips(),"for vnodes")
-# def build_box_names (self):
-# return [ h for h in self.build_boxes_spec() ]
-# def plc_boxes (self):
-# return [ h for (h,m) in self.plc_boxes_spec() ]
-# def qemu_boxes (self):
-# return [ h for (h,m) in self.qemu_boxes_spec() ]
+ def fqdn (self, hostname):
+ if hostname.find('.')<0: return "%s.%s"%(hostname,self.domain())
+ def short_hostname (self, hostname):
+ if hostname.find('.')>=0: return hostname.split('.')[0]
+ # return True if actual sensing takes place
def sense (self,force=False):
- if self._sensed and not force: return
+ if self._sensed and not force: return False
print 'Sensing local substrate...',
for b in self.all_boxes: b.sense()
print 'Done'
self._sensed=True
+ return True
+
+ def add_dummy_plc (self, plc_boxname, plcname):
+ for pb in self.plc_boxes:
+ if pb.hostname==plc_boxname:
+ pb.add_dummy(plcname)
+ def add_dummy_qemu (self, qemu_boxname, qemuname):
+ for qb in self.qemu_boxes:
+ if qb.hostname==qemu_boxname:
+ qb.add_dummy(qemuname)
##########
def provision (self,plcs,options):
try:
- self.sense()
- self.list_all()
# attach each plc to a plc box and an IP address
plcs = [ self.provision_plc (plc,options) for plc in plcs ]
# attach each node/qemu to a qemu box with an IP address
traceback.print_exc()
sys.exit(1)
+ # it is expected that a couple of options like ips_bplc and ips_vplc
+ # are set or unset together
+ @staticmethod
+ def check_options (x,y):
+ if not x and not y: return True
+ return len(x)==len(y)
+
# find an available plc box (or make space)
# and a free IP address (using options if present)
def provision_plc (self, plc, options):
- #### we need to find one plc box that still has a slot
- plc_box=None
- max_free=0
- # use the box that has max free spots for load balancing
- for pb in self.plc_boxes:
- free=pb.free_spots()
- if free>max_free:
- plc_box=pb
- max_free=free
- # everything is already used
- if not plc_box:
- # find the oldest of all our instances
- all_plc_instances=reduce(lambda x, y: x+y,
- [ pb.plc_instances for pb in self.plc_boxes ],
- [])
- all_plc_instances.sort(timestamp_sort)
- plc_instance_to_kill=all_plc_instances[0]
- plc_box=plc_instance_to_kill.plc_box
- plc_instance_to_kill.kill()
- print 'killed oldest = %s on %s'%(plc_instance_to_kill.line(),
- plc_instance_to_kill.plc_box.hostname)
-
- utils.header( 'plc %s -> box %s'%(plc['name'],plc_box.line()))
- plc_box.add_dummy(plc['name'])
- #### OK we have a box to run in, let's find an IP address
- # look in options
+
+ assert Substrate.check_options (options.ips_bplc, options.ips_vplc)
+
+ #### let's find an IP address for that plc
+ # look in options
if options.ips_vplc:
+ # this is a rerun
+ # we don't check anything here,
+ # it is the caller's responsability to cleanup and make sure this makes sense
+ plc_boxname = options.ips_bplc.pop()
vplc_hostname=options.ips_vplc.pop()
else:
+ if self.sense(): self.list_all()
+ plc_boxname=None
+ vplc_hostname=None
+ # try to find an available IP
self.vplc_pool.sense()
- self.vplc_pool.load_starting()
- (vplc_hostname,unused)=self.vplc_pool.next_free()
+ couple=self.vplc_pool.next_free()
+ if couple:
+ (vplc_hostname,unused)=couple
+ #### we need to find one plc box that still has a slot
+ max_free=0
+ # use the box that has max free spots for load balancing
+ for pb in self.plc_boxes:
+ free=pb.free_spots()
+ if free>max_free:
+ plc_boxname=pb.hostname
+ max_free=free
+ # if there's no available slot in the plc_boxes, or we need a free IP address
+ # make space by killing the oldest running instance
+ if not plc_boxname or not vplc_hostname:
+ # find the oldest of all our instances
+ all_plc_instances=reduce(lambda x, y: x+y,
+ [ pb.plc_instances for pb in self.plc_boxes ],
+ [])
+ all_plc_instances.sort(timestamp_sort)
+ try:
+ plc_instance_to_kill=all_plc_instances[0]
+ except:
+ msg=""
+ if not plc_boxname: msg += " PLC boxes are full"
+ if not vplc_hostname: msg += " vplc IP pool exhausted"
+ raise Exception,"Could not make space for a PLC instance:"+msg
+ freed_plc_boxname=plc_instance_to_kill.plc_box.hostname
+ freed_vplc_hostname=plc_instance_to_kill.vplcname()
+ message='killing oldest plc instance = %s on %s'%(plc_instance_to_kill.line(),
+ freed_plc_boxname)
+ plc_instance_to_kill.kill()
+ # use this new plcbox if that was the problem
+ if not plc_boxname:
+ plc_boxname=freed_plc_boxname
+ # ditto for the IP address
+ if not vplc_hostname:
+ vplc_hostname=freed_vplc_hostname
+ # record in pool as mine
+ self.vplc_pool.set_mine(vplc_hostname)
+
+ #
+ self.add_dummy_plc(plc_boxname,plc['name'])
vplc_ip = self.vplc_pool.get_ip(vplc_hostname)
self.vplc_pool.add_starting(vplc_hostname)
#### compute a helpful vserver name
# remove domain in hostname
- vplc_simple = vplc_hostname.split('.')[0]
- vservername = "%s-%d-%s" % (options.buildname,plc['index'],vplc_simple)
- plc_name = "%s_%s"%(plc['name'],vplc_simple)
+ vplc_short = self.short_hostname(vplc_hostname)
+ vservername = "%s-%d-%s" % (options.buildname,plc['index'],vplc_short)
+ plc_name = "%s_%s"%(plc['name'],vplc_short)
+
+ utils.header( 'PROVISION plc %s in box %s at IP %s as %s'%\
+ (plc['name'],plc_boxname,vplc_hostname,vservername))
#### apply in the plc_spec
# # informative
# label=options.personality.replace("linux","")
- mapper = {'plc': [ ('*' , {'hostname':plc_box.hostname,
+ mapper = {'plc': [ ('*' , {'host_box':plc_boxname,
# 'name':'%s-'+label,
'name': plc_name,
'vservername':vservername,
} ) ]
}
- utils.header("Attaching %s on IP %s in vserver %s"%(plc['name'],vplc_hostname,vservername))
+
# mappers only work on a list of plcs
return TestMapper([plc],options).map(mapper)[0]
##########
def provision_qemus (self, plc, options):
+
+ assert Substrate.check_options (options.ips_bnode, options.ips_vnode)
+
test_mapper = TestMapper ([plc], options)
nodenames = test_mapper.node_names()
maps=[]
for nodename in nodenames:
- #### similarly we want to find a qemu box that can host us
- qemu_box=None
- max_free=0
- # use the box that has max free spots for load balancing
- for qb in self.qemu_boxes:
- free=qb.free_spots()
- if free>max_free:
- qemu_box=qb
- max_free=free
- # everything is already used
- if not qemu_box:
- # find the oldest of all our instances
- all_qemu_instances=reduce(lambda x, y: x+y,
- [ qb.qemu_instances for qb in self.qemu_boxes ],
- [])
- all_qemu_instances.sort(timestamp_sort)
- qemu_instance_to_kill=all_qemu_instances[0]
- qemu_box=qemu_instance_to_kill.qemu_box
- qemu_instance_to_kill.kill()
- print 'killed oldest = %s on %s'%(qemu_instance_to_kill.line(),
- qemu_instance_to_kill.qemu_box.hostname)
-
- utils.header( 'node %s -> qemu box %s'%(nodename,qemu_box.line()))
- qemu_box.add_dummy(nodename)
- #### OK we have a box to run in, let's find an IP address
- # look in options
+
if options.ips_vnode:
+ # as above, it's a rerun, take it for granted
+ qemu_boxname=options.ips_bnode.pop()
vnode_hostname=options.ips_vnode.pop()
- mac=self.vnode_pool.retrieve_userdata(vnode_hostname)
else:
+ if self.sense(): self.list_all()
+ qemu_boxname=None
+ vnode_hostname=None
+ # try to find an available IP
self.vnode_pool.sense()
- self.vnode_pool.load_starting()
- (vnode_hostname,mac)=self.vnode_pool.next_free()
+ couple=self.vnode_pool.next_free()
+ if couple:
+ (vnode_hostname,unused)=couple
+ # find a physical box
+ max_free=0
+ # use the box that has max free spots for load balancing
+ for qb in self.qemu_boxes:
+ free=qb.free_spots()
+ if free>max_free:
+ qemu_boxname=qb.hostname
+ max_free=free
+ # if we miss the box or the IP, kill the oldest instance
+ if not qemu_boxname or not vnode_hostname:
+ # find the oldest of all our instances
+ all_qemu_instances=reduce(lambda x, y: x+y,
+ [ qb.qemu_instances for qb in self.qemu_boxes ],
+ [])
+ all_qemu_instances.sort(timestamp_sort)
+ try:
+ qemu_instance_to_kill=all_qemu_instances[0]
+ except:
+ msg=""
+ if not qemu_boxname: msg += " QEMU boxes are full"
+ if not vnode_hostname: msg += " vnode IP pool exhausted"
+ raise Exception,"Could not make space for a QEMU instance:"+msg
+ freed_qemu_boxname=qemu_instance_to_kill.qemu_box.hostname
+ freed_vnode_hostname=self.short_hostname(qemu_instance_to_kill.nodename)
+ # kill it
+ message='killing oldest qemu node = %s on %s'%(qemu_instance_to_kill.line(),
+ freed_qemu_boxname)
+ qemu_instance_to_kill.kill()
+ # use these freed resources where needed
+ if not qemu_boxname:
+ qemu_boxname=freed_qemu_boxname
+ if not vnode_hostname:
+ vnode_hostname=freed_vnode_hostname
+ self.vnode_pool.set_mine(vnode_hostname)
+
+ self.add_dummy_qemu (qemu_boxname,nodename)
+ mac=self.vnode_pool.retrieve_userdata(vnode_hostname)
ip=self.vnode_pool.get_ip (vnode_hostname)
self.vnode_pool.add_starting(vnode_hostname)
- if vnode_hostname.find('.')<0:
- vnode_hostname += "."+self.domain()
- nodemap={'host_box':qemu_box.hostname,
- 'node_fields:hostname':vnode_hostname,
+ vnode_fqdn = self.fqdn(vnode_hostname)
+ nodemap={'host_box':qemu_boxname,
+ 'node_fields:hostname':vnode_fqdn,
'interface_fields:ip':ip,
'interface_fields:mac':mac,
}
nodemap.update(self.network_settings())
maps.append ( (nodename, nodemap) )
- utils.header("Attaching %s on IP %s MAC %s"%(plc['name'],vnode_hostname,mac))
+ utils.header("PROVISION node %s in box %s at IP %s with MAC %s"%\
+ (nodename,qemu_boxname,vnode_hostname,mac))
return test_mapper.map({'node':maps})[0]
def get_box (self,box):
for b in self.build_boxes + self.plc_boxes + self.qemu_boxes:
- if b.simple_hostname()==box:
+ if b.short_hostname()==box:
return b
print "Could not find box %s"%box
return None
# can be run as a utility to manage the local infrastructure
def main (self):
parser=OptionParser()
+ parser.add_option ('-v',"--verbose",action='store_true',dest='verbose',default=False,
+ help='verbose mode')
(options,args)=parser.parse_args()
+ if options.verbose:
+ self.options.verbose=True
if not args:
self.list_all()
else:
git://git.onelab.eu / tests.git / blobdiff