#
# Thierry Parmentelat <thierry.parmentelat@inria.fr>
-# Copyright (C) 2010-2015 INRIA
+# Copyright (C) 2010-2015 INRIA
#
# #################### history
#
# see also Substrate.readme
#
# This is a complete rewrite of TestResources/Tracker/Pool
-# we don't use trackers anymore and just probe/sense the running
+# we don't use trackers anymore and just probe/sense the running
# boxes to figure out where we are
# in order to implement some fairness in the round-robin allocation scheme
-# we need an indication of the 'age' of each running entity,
+# we need an indication of the 'age' of each running entity,
# hence the 'timestamp-*' steps in TestPlc
-#
+#
# this should be much more flexible:
-# * supports several plc boxes
+# * supports several plc boxes
# * supports several qemu guests per host
# * no need to worry about tracker being in sync or not
#
# #################### howto use
#
-# each site is to write its own LocalSubstrate.py,
+# each site is to write its own LocalSubstrate.py,
# (see e.g. LocalSubstrate.inria.py)
# LocalSubstrate.py is expected to be in /root on the testmaster box
# and needs to define
# . the kvm-qemu capable boxes to host qemu instances
# . and their admissible load (max # of myplcs)
# . the pool of DNS-names and IP-addresses available for nodes
-#
+#
# #################### implem. note
-#
-# this model relies on 'sensing' the substrate,
+#
+# this model relies on 'sensing' the substrate,
# i.e. probing all the boxes for their running instances of vservers and qemu
-# this is how we get rid of tracker inconsistencies
-# however there is a 'black hole' between the time where a given address is
+# this is how we get rid of tracker inconsistencies
+# however there is a 'black hole' between the time where a given address is
# allocated and when it actually gets used/pingable
# this is why we still need a shared knowledge among running tests
# in a file named /root/starting
-# this is connected to the Pool class
-#
+# this is connected to the Pool class
+#
# ####################
import os.path, sys
class Starting:
location = '/root/starting'
-
+
def __init__ (self):
self.tuples=[]
except:
self.tuples = []
- def vnames (self) :
+ def vnames (self) :
self.load()
return [ x for (x, _) in self.tuples ]
if not vname in self.vnames():
with open(Starting.location, 'a') as out:
out.write("{}@{}\n".format(vname, bname))
-
+
def delete_vname (self, vname):
self.load()
if vname in self.vnames():
with open(Starting.location, 'w') as f:
- for (v, b) in self.tuples:
+ for (v, b) in self.tuples:
if v != vname:
f.write("{}@{}\n".format(v, b))
-
+
####################
# pool class
# allows to pick an available IP among a pool
# input is expressed as a list of tuples (hostname,ip,user_data)
# that can be searched iteratively for a free slot
# e.g.
-# pool = [ (hostname1,user_data1),
-# (hostname2,user_data2),
-# (hostname3,user_data2),
+# pool = [ (hostname1,user_data1),
+# (hostname2,user_data2),
+# (hostname3,user_data2),
# (hostname4,user_data4) ]
# assuming that ip1 and ip3 are taken (pingable), then we'd get
# pool=Pool(pool)
class Pool:
def __init__ (self, tuples, message, substrate):
- self.pool_items = [ PoolItem (hostname, userdata) for (hostname, userdata) in tuples ]
+ self.pool_items = [ PoolItem (hostname, userdata) for (hostname, userdata) in tuples ]
self.message = message
# where to send notifications upon load_starting
self.substrate = substrate
return line
def _item (self, hostname):
- for i in self.pool_items:
+ for i in self.pool_items:
if i.hostname == hostname: return i
raise Exception ("Could not locate hostname {} in pool {}".format(hostname, self.message))
- def retrieve_userdata (self, hostname):
+ def retrieve_userdata (self, hostname):
return self._item(hostname).userdata
def get_ip (self, hostname):
return self._item(hostname).get_ip()
except:
return socket.gethostbyname(hostname)
-
+
def set_mine (self, hostname):
try:
self._item(hostname).status='mine'
##########
def _sense (self):
for item in self.pool_items:
- if item.status is not None:
+ if item.status is not None:
print(item.char(), end=' ')
continue
- if self.check_ping (item.hostname):
+ if self.check_ping (item.hostname):
item.status = 'busy'
print('*', end=' ')
else:
item.status = 'free'
print('.', end=' ')
sys.stdout.flush()
-
+
def sense (self):
print('Sensing IP pool', self.message, end=' ')
sys.stdout.flush()
command = "ping -c 1 {} 1 {}".format(Pool.ping_timeout_option, hostname)
(status, output) = subprocess.getstatusoutput(command)
# print ("""
-#----------
+#----------
#Ping command <{command}> has returned {status}
#--
#{output}
probe_argv = self.test_ssh().actual_argv(composite_command)
composite = self.backquote ( probe_argv, trash_err=True )
self._hostname = self._uptime = self._uname = self._fedora = self._memory = "** Unknown **"
- if not composite:
+ if not composite:
print("root@{} unreachable".format(self.hostname))
self._probed = ''
else:
else:
with open('/dev/null', 'w') as null:
return subprocess.call(argv, stderr=null)
-
+
def run_ssh (self, argv, message, trash_err=False, dry_run=False):
ssh_argv = self.test_ssh().actual_argv(argv)
result = self.run (ssh_argv, message, trash_err, dry_run=dry_run)
def add_build(self, buildname, pid):
for build in self.build_instances:
- if build.buildname == buildname:
+ if build.buildname == buildname:
build.add_pid(pid)
return
self.build_instances.append(BuildInstance(buildname, pid, self))
def list(self, verbose=False):
- if not self.build_instances:
+ if not self.build_instances:
header ('No build process on {} ({})'.format(self.hostname_fedora(), self.uptime()))
else:
header ("Builds on {} ({})".format(self.hostname_fedora(), self.uptime()))
- for b in self.build_instances:
+ for b in self.build_instances:
header (b.line(), banner=False)
def reboot (self, options):
for line in ps_lines:
if not line.strip() or line.find('PID') >= 0: continue
m = build_matcher.match(line)
- if m:
+ 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'))
continue
m = build_matcher_initvm.match(line)
- if m:
+ if m:
# buildname is expansed here
self.add_build(buildname, m.group('pid'))
continue
header('BuildLxcBox.sense: command {} returned line that failed to match'.format(command))
header(">>{}<<".format(line))
-
+
############################################################
class PlcInstance:
def __init__ (self, plcbox):
self.timestamp = 0
def __repr__(self):
return "<PlcInstance {}>".format(self.plc_box)
-
+
def set_timestamp (self,timestamp):
self.timestamp = timestamp
def set_now (self):
self.soft_reboot (options)
def list(self, verbose=False):
- if not self.plc_instances:
+ if not self.plc_instances:
header ('No plc running on {}'.format(self.line()))
else:
header ("Active plc VMs on {}".format(self.line()))
self.plc_instances.sort(key=timestamp_key)
- for p in self.plc_instances:
+ for p in self.plc_instances:
header (p.line(), banner=False)
## we do not this at INRIA any more
header("WARNING, duplicate myplc {} running on {}"\
.format(lxcname, self.hostname), banner=False)
return
- self.plc_instances.append(PlcLxcInstance(self, lxcname, pid))
+ self.plc_instances.append(PlcLxcInstance(self, lxcname, pid))
# a line describing the box
- def line(self):
- return "{} [max={},free={}] ({})".format(self.hostname_fedora(virt="lxc"),
+ def line(self):
+ return "{} [max={},free={}] ({})".format(self.hostname_fedora(virt="lxc"),
self.max_plcs, self.free_slots(),
self.uptime())
-
+
def plc_instance_by_lxcname(self, lxcname):
for p in self.plc_instances:
if p.lxcname == lxcname:
return p
return None
-
+
# essentially shutdown all running containers
def soft_reboot(self, options):
command="rsync lxc-driver.sh {}:/root".format(self.hostname)
dry_run=options.dry_run)
- # sense is expected to fill self.plc_instances with PlcLxcInstance's
+ # sense is expected to fill self.plc_instances with PlcLxcInstance's
# to describe the currently running VM's
def sense(self, options):
print("xp", end=' ')
p.set_timestamp(timestamp)
############################################################
-class QemuInstance:
+class QemuInstance:
def __init__(self, nodename, pid, qemubox):
self.nodename = nodename
self.pid = pid
self.timestamp = 0
def __repr__(self):
return "<QemuInstance {}>".format(self.nodename)
-
+
def set_buildname (self, buildname):
self.buildname = buildname
def set_timestamp (self, timestamp):
self.timestamp = int(time.time())
def pretty_timestamp (self):
return time.strftime("%Y-%m-%d:%H-%M", time.localtime(self.timestamp))
-
+
def line (self):
msg = "== {} ==".format(short_hostname(self.nodename))
msg += " [={}]".format(self.buildname)
if self.timestamp: msg += " @ {}".format(self.pretty_timestamp())
else: msg += " *unknown timestamp*"
return msg
-
+
def kill(self):
- if self.pid == 0:
+ if self.pid == 0:
print("cannot kill qemu {} with pid==0".format(self.nodename))
return
msg = "Killing qemu {} with pid={} on box {}".format(self.nodename, self.pid, self.qemu_box.hostname)
def add_node(self, nodename, pid):
for qemu in self.qemu_instances:
- if qemu.nodename == nodename:
+ if qemu.nodename == nodename:
header("WARNING, duplicate qemu {} running on {}"\
.format(nodename,self.hostname), banner=False)
return
self.uptime(), self.driver())
def list(self, verbose=False):
- if not self.qemu_instances:
+ if not self.qemu_instances:
header ('No qemu on {}'.format(self.line()))
else:
header ("Qemus on {}".format(self.line()))
self.qemu_instances.sort(key=timestamp_key)
- for q in self.qemu_instances:
+ for q in self.qemu_instances:
header (q.line(), banner=False)
def free_slots (self):
if not line.strip() or line.find('PID') >=0 :
continue
m = QemuBox.matcher.match(line)
- if m:
+ if m:
self.add_node(m.group('nodename'), m.group('pid'))
continue
header('QemuBox.sense: command {} returned line that failed to match'.format(command))
(_, timestamp) = tail.split(':')
timestamp = int(timestamp)
q = self.qemu_instance_by_nodename_buildname(nodename, buildname)
- if not q:
- # this warning corresponds to qemu instances that were not killed properly
+ if not q:
+ # this warning corresponds to qemu instances that were not killed properly
# and that have a dangling qemu.pid - and not even all of them as they need
# to be attached to a build that has a node running...
# it is more confusing than helpful, so let's just trash it
return len(self.pids) != 0
def add_pid(self, pid):
self.pids.append(pid)
- def set_broken(self, plcindex, step):
+ def set_broken(self, plcindex, step):
self.broken_steps.append( (plcindex, step,) )
def second_letter(self):
# we scan ALL remaining test results, even the ones not running
def add_timestamp(self, buildname, timestamp):
i = self.get_test(buildname)
- if i:
+ if i:
i.set_timestamp(timestamp)
- else:
+ else:
i = TestInstance(buildname, 0)
i.set_timestamp(timestamp)
self.test_instances.append(i)
self.add_broken(buildname, '', 'NO STEP DONE')
continue
m = TestBox.matcher_grep.match(line)
- if m:
+ if m:
buildname = m.group('buildname')
plcindex = m.group('plcindex')
step = m.group('step')
if not line.strip():
continue
m = TestBox.matcher_proc.match(line)
- if m:
+ if m:
pid = m.group('pid')
buildname = m.group('buildname')
self.add_running_test(pid, buildname)
continue
header("TestBox.sense: command {} returned line that failed to match\n{}".format(command, line))
header(">>{}<<".format(line))
-
-
+
+
def line (self):
return self.hostname_fedora()
self.vplc_pool = Pool(self.vplc_ips(), "for vplcs", self)
self.vnode_pool = Pool(self.vnode_ips(), "for vnodes", self)
-
+
self.build_boxes = self.build_lxc_boxes
self.plc_boxes = self.plc_lxc_boxes
self.default_boxes = self.plc_boxes + self.qemu_boxes
def add_starting_dummy(self, bname, vname):
return self.add_dummy_plc(bname, vname) or self.add_dummy_qemu(bname, vname)
- ##########
+ ##########
def provision(self, plcs, options):
try:
# attach each plc to a plc box and an IP address
traceback.print_exc()
sys.exit(1)
- # it is expected that a couple of options like ips_bplc and ips_vplc
+ # 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):
# find an available plc box (or make space)
# and a free IP address (using options if present)
def provision_plc(self, plc, options):
-
+
assert Substrate.check_options(options.ips_bplc, options.ips_vplc)
#### let's find an IP address for that plc
- # look in options
+ # look in options
if options.ips_vplc:
# this is a rerun
- # we don't check anything here,
+ # 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()
self.list()
plc_boxname = None
vplc_hostname = None
- # try to find an available IP
+ # try to find an available IP
self.vplc_pool.sense()
couple = self.vplc_pool.next_free()
if couple:
# 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,
+ all_plc_instances = reduce(lambda x, y: x+y,
[ pb.plc_instances for pb in self.plc_boxes ],
[])
all_plc_instances.sort(key=timestamp_key)
# 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, plc_boxname)
self.list()
qemu_boxname = None
vnode_hostname = None
- # try to find an available IP
+ # try to find an available IP
self.vnode_pool.sense()
couple = self.vnode_pool.next_free()
if couple:
# 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,
+ all_qemu_instances = reduce(lambda x, y: x+y,
[ qb.qemu_instances for qb in self.qemu_boxes ],
[])
all_qemu_instances.sort(key=timestamp_key)
if not qemu_boxname:
msg += " QEMU boxes are full"
if not vnode_hostname:
- msg += " vnode IP pool exhausted"
+ msg += " vnode IP pool exhausted"
msg += " {}".format(self.summary_line())
raise Exception("Cannot make space for a QEMU instance:"+msg)
freed_qemu_boxname = qemu_instance_to_kill.qemu_box.hostname
vnode_fqdn = self.fqdn(vnode_hostname)
nodemap = {'host_box' : qemu_boxname,
'node_fields:hostname' : vnode_fqdn,
- 'interface_fields:ip' : ip,
- 'ipaddress_fields:ip_addr' : ip,
+ 'interface_fields:ip' : ip,
+ 'ipaddress_fields:ip_addr' : ip,
'interface_fields:mac' : mac,
}
nodemap.update(self.network_settings())
return test_mapper.map({'node':maps})[0]
def localize_sfa_rspec(self, plc, options):
-
+
plc['sfa']['settings']['SFA_REGISTRY_HOST'] = plc['settings']['PLC_DB_HOST']
plc['sfa']['settings']['SFA_AGGREGATE_HOST'] = plc['settings']['PLC_DB_HOST']
plc['sfa']['settings']['SFA_DB_HOST'] = plc['settings']['PLC_DB_HOST']
print("Could not find box {}".format(boxname))
return None
- # deal with the mix of boxes and names and stores the current focus
+ # deal with the mix of boxes and names and stores the current focus
# as a list of Box instances in self.focus_all
def normalize(self, box_or_names):
self.focus_all = []
for box in box_or_names:
if not isinstance(box, Box):
box = self.get_box(box)
- if not box:
+ if not box:
print('Warning - could not handle box',box)
self.focus_all.append(box)
# elaborate by type
self.focus_build = [ x for x in self.focus_all if isinstance(x, BuildBox) ]
self.focus_plc = [ x for x in self.focus_all if isinstance(x, PlcBox) ]
self.focus_qemu = [ x for x in self.focus_all if isinstance(x, QemuBox) ]
-
+
def list_boxes(self):
print('Sensing', end=' ')
sys.stdout.flush()
for (node,count) in list(hash.items()):
if count!=1:
print('WARNING - duplicate node', node)
-
+
####################
# can be run as a utility to probe/display/manage the local infrastructure
parser.add_option('-s', "--soft", action='store_true', dest='soft', default=False,
help='soft mode for reboot (terminates processes)')
parser.add_option('-t', "--testbox", action='store_true', dest='testbox', default=False,
- help='add test box')
+ help='add test box')
parser.add_option('-b', "--build", action='store_true', dest='builds', default=False,
help='add build boxes')
parser.add_option('-p', "--plc", action='store_true', dest='plcs', default=False,
help='add plc boxes')
parser.add_option('-q', "--qemu", action='store_true', dest='qemus', default=False,
- help='add qemu boxes')
+ help='add qemu boxes')
parser.add_option('-a', "--all", action='store_true', dest='all', default=False,
help='address all known boxes, like -b -t -p -q')
parser.add_option('-v', "--verbose", action='store_true', dest='verbose', default=False,
if self.options.plcs: boxes += self.plc_boxes
if self.options.qemus: boxes += self.qemu_boxes
if self.options.all: boxes += self.all_boxes
-
+
global verbose
verbose = self.options.verbose
# default scope is -b -p -q -t
git://git.onelab.eu / tests.git / commitdiff