def run(self, message_bus, timeout):
"""
send verb to all nodes, waits for max timeout
returns True if all nodes behaved as expected
and False otherwise - including in case of KeyboardInterrupt
"""
nodes = [
Node(cmc_name, message_bus)
for cmc_name in self.selector.cmc_names()
]
jobs = [
Job(self.get_and_show_verb(node, self.verb), critical=True)
for node in nodes
]
display = Display(nodes, message_bus)
scheduler = Scheduler(Job(display.run(), forever=True, critical=True),
*jobs,
timeout=timeout,
critical=False)
try:
if scheduler.run():
return True
else:
scheduler.debrief()
print(f"rhubarbe-{self.verb} failed: {scheduler.why()}")
return False
except KeyboardInterrupt:
print(f"rhubarbe-{self.verb} : keyboard interrupt - exiting")
return False
def test_nesting_sequence(self):
expected_duration = 1.
watch = Watch('test_nesting_sequence')
subjob = Scheduler(
Sequence(
Job(co_print_sleep(watch, .2, "one")),
Job(co_print_sleep(watch, .2, "two")),
Job(co_print_sleep(watch, .2, "three")),
),
watch=watch,
label="sub-scheduler\non several lines",
critical=True,
forever=True,
)
main = Scheduler(Sequence(
Job(co_print_sleep(watch, .2, "BEGIN"), label="job-label"),
subjob,
Job(co_print_sleep(watch, .2, "END")),
),
watch=watch)
print("===== test_nesting_sequence", "LIST with details")
main.list(details=True)
self.assertTrue(main.run())
self.assertAlmostEqual(watch.seconds(), expected_duration, delta=.05)
produce_png(main, "test_nesting_sequence")
def test_nesting1(self):
"""
one main scheduler in sequence
one job
one subscheduler that runs 2 jobs in parallel
one job
"""
watch = Watch('test_nesting1')
# sub-scheduler - total approx 1 s
sub_sched = PureScheduler(watch=watch)
Job(co_print_sleep(watch, 0.5, "sub short"), scheduler=sub_sched)
Job(co_print_sleep(watch, 1, "sub longs"), scheduler=sub_sched)
# main scheduler - total approx 2 s
main_sched = PureScheduler(watch=watch)
Sequence(
Job(co_print_sleep(watch, 0.5, "main begin")),
# this is where the subscheduler is merged
Job(sub_sched.co_run(), label='subscheduler'),
Job(co_print_sleep(watch, 0.5, "main end")),
scheduler=main_sched)
print("===== test_nesting1", "LIST with details")
main_sched.list(details=True)
ok = main_sched.run()
self.assertTrue(ok)
# allow for a small variation around 2s of course
duration = watch.seconds()
self.assertAlmostEqual(duration, 2, delta=0.05)
def test_nesting3(self):
"""
same as test_nesting2
but using a Scheduler instance
2 sub schedulers run in parallel while
the third main one controls them both
"""
# main scheduler - total approx
# 0.5 + max(0.5, 1) + 0.5 = 2 s
expected_duration = 2
watch = Watch('test_nesting3')
main_sched = PureScheduler(verbose=True, watch=watch)
main_sched.label = "main3"
mainj1 = Job(co_print_sleep(watch, 0.5, "mainj1"),
label="mainj1",
scheduler=main_sched)
# sub-scheduler 2 - total approx 0.5 s
sub_sched2 = diamond_scheduler(watch, 0.5, "SUB2")
main_sched.add(sub_sched2)
sub_sched2.requires(mainj1)
sub_sched2.label = "sub_sched2"
sub_sched2.verbose = True
# sub-scheduler 3 - total approx 1 s
sub_sched3 = diamond_scheduler(watch, 1, "SUB3")
main_sched.add(sub_sched3)
sub_sched3.requires(mainj1)
sub_sched3.label = "sub_sched3"
sub_sched3.verbose = True
# last job in main scheduler
Job(co_print_sleep(watch, 0.5, "mainj4"),
label="mainj4",
required=(sub_sched2, sub_sched3),
scheduler=main_sched)
for s in main_sched, sub_sched2, sub_sched3:
if not s.sanitize():
print(f"OOPS, had to sanitize sched {s.label}")
print("===== test_nesting3", "LIST without details")
main_sched.list(details=False)
produce_png(main_sched, "test_nesting3")
watch.reset()
print("---run")
ok = main_sched.run()
if not ok:
main_sched.debrief()
self.assertTrue(ok)
# allow for a small variation around 2s of course
duration = watch.seconds()
self.assertAlmostEqual(duration, expected_duration, delta=0.05)
def test_png_easy2(self):
"""
same but with a multi-entry/multi-exit sub-sched
"""
watch = Watch()
sched = Scheduler(
Sequence(
Job(co_print_sleep(watch, .2, "beg"),
label="test_png_easy2"),
pipes(watch, .6, "middle"),
Job(co_print_sleep(watch, .2, "end")),
),
watch=watch
)
produce_png(sched, "test_png_easy2")
def test_png_easy(self):
"""
start with an easy one, a sequence that has a diamond inside
"""
watch = Watch()
sched = Scheduler(
Sequence(
Job(co_print_sleep(watch, .2, "beg"),
label="test_easy"),
diamond_scheduler(watch, .6, "middle"),
Job(co_print_sleep(watch, .2, "end")),
),
watch=watch
)
produce_png(sched, "test_png_easy")
def test_png_simple(self):
"""
a sequence that has 2 subscheds in a row
"""
watch = Watch()
sched = Scheduler(
Sequence(
Job(co_print_sleep(watch, .2, "beg"),
label="test_png_simple start"),
diamond_scheduler(watch, .6, "middle-up"),
pipes(watch, .6, "middle-down"),
Job(co_print_sleep(watch, .2, "end"),
label="test_png_simple end"),
),
watch=watch
)
produce_png(sched, "test_png_simple")
def sched_sched_boom(s1_crit, s2_crit, j_crit):
return Scheduler(Scheduler(Job(boom("ok"),
critical=j_crit,
label=f"boom {j_crit}"),
critical=s2_crit,
label=f"internal {s2_crit}"),
critical=s1_crit,
label=f"external {s1_crit}")
def test_nesting2(self):
"""
2 sub schedulers run in parallel while
the third main one controls them both
"""
watch = Watch('test_nesting2')
# sub-scheduler - total approx 0.5 s
sub2 = diamond_scheduler(watch,
0.5,
"SUB2",
scheduler_class=PureScheduler)
sub2.watch = watch
# sub-scheduler - total approx 1 s
sub3 = diamond_scheduler(watch,
1,
"SUB3",
scheduler_class=PureScheduler)
sub3.watch = watch
# main scheduler - total approx
# 0.5 + max(0.5, 1) + 0.5 = 2 s
expected_duration = 2
main_sched = PureScheduler(watch=watch)
mainj1 = Job(co_print_sleep(watch, 0.5, "mainj1"),
label="mainj1",
scheduler=main_sched)
mainj2 = Job(sub2.co_run(),
label="mainj2",
required=mainj1,
scheduler=main_sched)
mainj3 = Job(sub3.co_run(),
label="mainj3",
required=mainj1,
scheduler=main_sched)
Job(co_print_sleep(watch, 0.5, "mainj4"),
label="mainj4",
required=(mainj2, mainj3),
scheduler=main_sched)
ok = main_sched.run()
self.assertTrue(ok)
# allow for a small variation around 2s of course
duration = watch.seconds()
self.assertAlmostEqual(duration, expected_duration, delta=0.05)
def main(self, reset, timeout):
mainjob = Job(self.run(reset))
displayjob = Job(self.display.run(), forever=True)
scheduler = Scheduler (mainjob, displayjob)
try:
ok = scheduler.orchestrate(timeout = timeout)
if not ok:
self.display.set_goodbye("rhubarbe-load failed: {}".format(scheduler.why()))
return 1
return 0 if mainjob.result() else 1
except KeyboardInterrupt as e:
self.display.set_goodbye("rhubarbe-load : keyboard interrupt - exiting")
return 1
finally:
self.frisbeed and self.frisbeed.stop_nowait()
self.nextboot_cleanup()
self.display.epilogue()
def test_graph1(self):
watch = Watch()
s = PureScheduler()
s.add(
Sequence(
Job(co_print_sleep(watch, .25, 'begin')),
Job(co_print_sleep(watch, 1., 'middle'), label='middle'),
Job(co_print_sleep(watch, .25, 'end')),
))
print("test_graph1 NO DETAILS")
s.list()
print("test_graph1 WITH DETAILS")
s.list(details=True)
print("GRAPH")
self.assertEqual(len(s), 3)
s.run()
self.assertAlmostEqual(watch.seconds(), 1.5, delta=0.05)
produce_png(s, "test_graph1")
def main(self, reset, timeout):
mainjob = Job(self.run(reset), critical=True)
displayjob = Job(self.display.run(), forever=True, critical=True)
scheduler = Scheduler(mainjob,
displayjob,
timeout=timeout,
critical=False)
try:
is_ok = scheduler.run()
if not is_ok:
scheduler.debrief()
self.display.set_goodbye(
f"rhubarbe-save failed: {scheduler.why()}")
return 1
return 0 if mainjob.result() else 1
except KeyboardInterrupt:
self.display.set_goodbye("rhubarbe-save : keyboard interrupt, bye")
return 1
finally:
self.cleanup()
def test_png_styles1(self):
"""
trying the rendering of critical and forever jobs
"""
watch = Watch()
sched = Scheduler(
Sequence(
Job(co_print_sleep(watch, .1, "regular"),
label="regular",
critical=False, forever=False),
Job(co_print_sleep(watch, .1, "critical"),
label="critical",
critical=True, forever=False),
Job(co_print_sleep(watch, .1, "forever"),
label="forever",
critical=False, forever=True),
Job(co_print_sleep(watch, .1, "both"),
label="both",
critical=True, forever=True),
),
watch=watch,
)
produce_png(sched, "test_png_styles1")
def global_wait_ssh(self):
# wait for nodes to be ssh-reachable
self.print(f"waiting for {len(self.nodes)} nodes"
f" (timeout={self.wait_timeout})")
sshs = [SshWaiter(node, verbose=self.verbose) for node in self.nodes]
jobs = [
Job(ssh.wait_for(self.backoff), critical=False) for ssh in sshs
]
scheduler = Scheduler(Job(self.display.run(), forever=True),
*jobs,
critical=False,
timeout=self.wait_timeout)
if not scheduler.run():
self.verbose and scheduler.debrief() # pylint: disable=w0106
# exclude nodes that have not behaved
for node, job in zip(self.nodes, jobs):
self.verbose_msg(
f"node {node.id} wait_ssh_job -> done={job.is_done()}",
f"exc={job.raised_exception()}")
if exc := job.raised_exception():
message = f"OOPS {type(exc)} {exc}"
self.mark_and_exclude(node, Reason.WONT_SSH, message)
def global_check_image(self, _image, check_strings):
# on the remaining nodes: check image marker
self.print(f"checking {len(self.nodes)} nodes"
f" against {check_strings} in /etc/rhubarbe-image")
grep_pattern = "|".join(check_strings)
check_command = (
f"tail -1 /etc/rhubarbe-image | egrep -q '{grep_pattern}'")
jobs = [
SshJob(node=silent_sshnode(node, verbose=self.verbose),
command=check_command,
critical=False) for node in self.nodes
]
scheduler = Scheduler(Job(self.display.run(), forever=True),
*jobs,
critical=False,
timeout=self.wait_timeout)
if not scheduler.run():
self.verbose and scheduler.debrief() # pylint: disable=w0106
# exclude nodes that have not behaved
for node, job in zip(self.nodes, jobs):
if not job.is_done() or job.raised_exception():
self.verbose_msg(
f"checking {grep_pattern}: something went badly wrong with {node}"
)
message = None
if exc := job.raised_exception():
message = f"OOPS {type(exc)} {exc}"
self.mark_and_exclude(node, Reason.CANT_CHECK_IMAGE, message)
continue
if not job.result() == 0:
explanation = f"wrong image found on {node} - looking for {grep_pattern}"
self.verbose_msg(explanation)
self.mark_and_exclude(node, Reason.DID_NOT_LOAD, explanation)
continue
self.print(f"node {node} checked out OK")
def sched_boom(s_crit, j_crit):
return Scheduler(Job(boom(str(j_crit)), critical=j_crit),
critical=s_crit)
def wait(*argv): # pylint: disable=r0914
usage = """
Wait for selected nodes to be reachable by ssh
Returns 0 if all nodes indeed are reachable
"""
# suppress info log messages from asyncssh
asyncssh_set_log_level(logging.WARNING)
config = Config()
parser = ArgumentParser(usage=usage,
formatter_class=ArgumentDefaultsHelpFormatter)
parser.add_argument("-c",
"--curses",
action='store_true',
default=False,
help="Use curses to provide term-based animation")
parser.add_argument("-t",
"--timeout",
action='store',
default=config.value('nodes', 'wait_default_timeout'),
type=float,
help="Specify global timeout for the whole process")
parser.add_argument("-b",
"--backoff",
action='store',
default=config.value('networking', 'ssh_backoff'),
type=float,
help="Specify backoff average between "
"attempts to ssh connect")
parser.add_argument("-u",
"--user",
default="root",
help="select other username")
# really dont' write anything
parser.add_argument("-s", "--silent", action='store_true', default=False)
parser.add_argument("-v", "--verbose", action='store_true', default=False)
add_selector_arguments(parser)
args = parser.parse_args(argv)
# --curses implies --verbose otherwise nothing shows up
if args.curses:
args.verbose = True
selector = selected_selector(args)
message_bus = asyncio.Queue()
if args.verbose:
message_bus.put_nowait({'selected_nodes': selector})
from rhubarbe.logger import logger
logger.info(f"wait: backoff is {args.backoff} "
f"and global timeout is {args.timeout}")
nodes = [
Node(cmc_name, message_bus) # pylint: disable=w0621
for cmc_name in selector.cmc_names()
]
sshs = [
SshProxy(node, username=args.user, verbose=args.verbose)
for node in nodes
]
jobs = [Job(ssh.wait_for(args.backoff), critical=True) for ssh in sshs]
display_class = Display if not args.curses else DisplayCurses
display = display_class(nodes, message_bus)
# have the display class run forever until the other ones are done
scheduler = Scheduler(Job(display.run(), forever=True, critical=True),
*jobs,
timeout=args.timeout,
critical=False)
try:
orchestration = scheduler.run()
if orchestration:
return 0
else:
if args.verbose:
scheduler.debrief()
return 1
except KeyboardInterrupt:
print("rhubarbe-wait : keyboard interrupt - exiting")
# xxx
return 1
finally:
display.epilogue()
if not args.silent:
for ssh in sshs:
print(f"{ssh.node}:ssh {'OK' if ssh.status else 'KO'}")
# for the fun of it, let's add a job that runs forever and writes
# current time every second
import time
import asyncio
async def infinite_clock():
while True:
print("--- TICK - {}".format(time.strftime("%H:%M:%S")))
await asyncio.sleep(1)
# a forever job is not expected to end, instead
# it gets killed when the rest of the flock is done with
clock_job = Job(
infinite_clock(),
forever=True,
scheduler = scheduler,
# for the illustrated graph
label = "infinite clock",
)
##########
# run the scheduler
ok = scheduler.orchestrate()
# give details if it failed
ok or scheduler.debrief()
success = ok and ping.result() == 0
# producing a dot file for illustration
scheduler.export_as_dotfile("B4.dot")
def job_in_s(i, s):
return Job(co_print_sleep(watch, .2, f"job {i}"),
label=f"job{i}",
scheduler=s)
def job(i):
return Job(co_print_sleep(watch, 0.1, f"job{i}"), label=i)
def main() -> bool:
parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter)
parser.add_argument("-U", "--url", default=default_topurl,
dest='topurl',
help="url to reach nbhosting server")
parser.add_argument("-c", "--course-gitdir", default=default_course_gitdir,
help="""location of a git repo where to fetch notebooks;
needed in order to generate relevant URLs""")
parser.add_argument("-i", "--indices", default=[0], action=IntsRanges,
help="(cumulative) ranges of indices in the list of known notebooks"
" - run nbhtest with -l to see list")
parser.add_argument("-u", "--users", default=[1], action=IntsRanges,
help="(cumulative) ranges of students indexes; e.g. -u 101-400 -u 501-600")
parser.add_argument("-m", "--random", action='store_true',
help="if set, a random notebook index is used for each student")
parser.add_argument("-b", "--base", default='student',
help="basename for students name")
parser.add_argument("-p", "--period", default=20, type=float,
help="delay between 2 triggers of nbhtest")
parser.add_argument("-s", "--sleep", default=default_sleep_internal, type=float,
help="delay in seconds to sleep between actions inside nbhtest")
parser.add_argument("-w", "--window", default=default_window, type=int,
help="window depth for spawning the nbhtest instances")
parser.add_argument("-n", "--dry-run", action='store_true')
args = parser.parse_args()
course_gitdir = args.course_gitdir
course, notebooks = list_notebooks(course_gitdir)
# in random mode; what are the choices that we randomize on
if args.random:
if len(args.indices) > 1:
choices = args.indices
else:
choices = list(range(len(notebooks)))
local = LocalNode(
formatter=TerminalFormatter(
format="%H-%M-%S:@line@",
verbose=True
))
scheduler = Scheduler()
jobs = []
for user in args.users:
student_name = "{}-{:04d}".format(args.base, user)
if args.random:
indices = [ random.choice(choices) ]
else:
indices = args.indices
for index in indices:
command = "nbhtest.py -U {} -c {} -i {} -u {} -s {} &"\
.format(args.topurl, course_gitdir, index, student_name, args.sleep)
if args.dry_run:
print("dry-run:", command)
else:
# schule this command to run
job = Sequence(
SshJob(scheduler=scheduler,
node=local,
command = command,
),
Job(asyncio.sleep(args.period))
)
jobs.append(job)
if args.dry_run:
return True
overall = scheduler.orchestrate(
jobs_window = args.window
)
if not overall:
scheduler.debrief()
print("nbhtests DONE")
return overall
async def infinite_clock(watch):
while True:
print("--- TICK - {}".format(watch.elapsed()))
await asyncio.sleep(1)
# create a Watch instance for keeping track of elapsed time
watch = Watch()
# a forever job is not expected to end, instead
# it gets killed when the rest of the flock is done with
clock_job = Job(
infinite_clock(watch),
forever=True,
scheduler=scheduler,
# for the illustrated graph
label="infinite stopwatch",
)
##########
# run the scheduler
ok = scheduler.orchestrate()
# give details if it failed
ok or scheduler.debrief()
success = ok and ping.result() == 0
# producing a dot file for illustration
scheduler.export_as_dotfile("B5.dot")
def job(n):
return Job(aprint(n), label=n)
def run(slice, hss, epc, enb, extras, load_nodes, image_gw, image_enb,
image_extra, reset_nodes, reset_usrp, spawn_xterms, verbose):
"""
##########
# 3 methods to get nodes ready
# (*) load images
# (*) reset nodes that are known to have the right image
# (*) do nothing, proceed to experiment
expects e.g.
* slice : s.t like [email protected]
* hss : 04
* epc : 03
* enb : 23
* extras : a list of ids that will be loaded with the gnuradio image
Plus
* load_nodes: whether to load images or not - in which case
image_gw, image_enb and image_extra
are used to tell the image names
* reset_nodes: if load_nodes is false and reset_nodes is true, the nodes are reset - i.e. rebooted
* otherwise (both False): do nothing
* reset_usrp : if not False, the USRP board won't be reset
* spawn_xterms : if set, starts xterm on all extra nodes
* image_* : the name of the images to load on the various nodes
"""
# what argparse knows as a slice actually is a gateway (user + host)
gwuser, gwhost = parse_slice(slice)
gwnode = SshNode(hostname=gwhost,
username=gwuser,
formatter=ColonFormatter(verbose=verbose),
debug=verbose)
hostnames = hssname, epcname, enbname = [
r2lab_hostname(x) for x in (hss, epc, enb)
]
extra_hostnames = [r2lab_hostname(x) for x in extras]
hssnode, epcnode, enbnode = [
SshNode(gateway=gwnode,
hostname=hostname,
username='******',
formatter=ColonFormatter(verbose=verbose),
debug=verbose) for hostname in hostnames
]
extra_nodes = [
SshNode(gateway=gwnode,
hostname=hostname,
username='******',
formatter=ColonFormatter(verbose=verbose),
debug=verbose) for hostname in extra_hostnames
]
########## preparation
job_check_for_lease = SshJob(
node=gwnode,
command=["rhubarbe", "leases", "--check"],
label="check we have a current lease",
)
# turn off all nodes
turn_off_command = ["rhubarbe", "off", "-a"]
# except our 3 nodes and the optional extras
turn_off_command += [
"~{}".format(x) for x in [hss, epc, enb] + extras + [20]
]
job_off_nodes = SshJob(
node=gwnode,
# switch off all nodes but the ones we use
command=turn_off_command,
label="turn off unused nodes",
required=job_check_for_lease,
)
# actually run this in the gateway, not on the mac
# the ssh keys are stored in the gateway and we do not yet have
# the tools to leverage such remote keys
job_stop_phone = SshJob(
node=gwnode,
command=RunScript(locate_local_script("faraday.sh"),
"macphone",
"r2lab/infra/user-env/macphone.sh",
"phone-off",
includes=includes),
label="stop phone",
required=job_check_for_lease,
)
jobs_prepare = [job_check_for_lease, job_stop_phone]
# turn off nodes only when --load or --reset is set
if load_nodes or reset_nodes:
jobs_prepare.append(job_off_nodes)
########## infra nodes hss + epc
# prepare nodes
commands = []
if load_nodes:
commands.append(
Run("rhubarbe", "load", "-i", image_gw, hssname, epcname))
elif reset_nodes:
commands.append(Run("rhubarbe", "reset", hssname, epcname))
# always do this
commands.append(Run("rhubarbe", "wait", "-t", 120, hssname, epcname))
job_load_infra = SshJob(
node=gwnode,
commands=commands,
label="load and wait HSS and EPC nodes",
required=jobs_prepare,
)
# start services
job_service_hss = SshJob(
node=hssnode,
command=RunScript(locate_local_script("oai-hss.sh"),
"run-hss",
epc,
includes=includes),
label="start HSS service",
required=job_load_infra,
)
msg = "wait for HSS to warm up"
job_service_epc = Sequence(
# let 15 seconds to HSS
Job(
verbose_delay(15, msg),
label=msg,
),
SshJob(
node=epcnode,
command=RunScript(locate_local_script("oai-epc.sh"),
"run-epc",
hss,
includes=includes),
label="start EPC services",
),
required=job_load_infra,
)
jobs_infra = job_load_infra, job_service_hss, job_service_epc
########## enodeb
# prepare node
commands = []
if load_nodes:
commands.append(Run("rhubarbe", "usrpoff", enb))
commands.append(Run("rhubarbe", "load", "-i", image_enb, enb))
elif reset_nodes:
commands.append(Run("rhubarbe", "reset", enb))
commands.append(Run("rhubarbe", "wait", "-t", "120", enb))
job_load_enb = SshJob(
node=gwnode,
commands=commands,
label="load and wait ENB",
required=jobs_prepare,
)
# start service
msg = "wait for EPC to warm up"
job_service_enb = Sequence(
Job(verbose_delay(15, msg), label=msg),
SshJob(
node=enbnode,
# run-enb expects the id of the epc as a parameter
command=RunScript(locate_local_script("oai-enb.sh"),
"run-enb",
epc,
reset_usrp,
includes=includes),
label="start softmodem on ENB",
),
required=(job_load_enb, job_service_hss, job_service_epc),
)
jobs_enb = job_load_enb, job_service_enb
########## run experiment per se
# the phone
# we need to wait for the USB firmware to be loaded
duration = 30 if reset_usrp is not False else 8
msg = "wait for enodeb firmware to load on USRP".format(duration)
job_wait_enb = Job(verbose_delay(duration, msg),
label=msg,
required=job_service_enb)
job_start_phone = SshJob(
node=gwnode,
commands=[
RunScript(locate_local_script("faraday.sh"),
"macphone",
"r2lab/infra/user-env/macphone.sh",
"phone-on",
includes=includes),
RunScript(locate_local_script("faraday.sh"),
"macphone",
"r2lab/infra/user-env/macphone.sh",
"phone-start-app",
includes=includes),
],
label="start phone 4g and speedtest app",
required=job_wait_enb,
)
job_ping_phone_from_epc = SshJob(
node=epcnode,
commands=[
Run("sleep 10"),
Run("ping -c 100 -s 100 -i .05 172.16.0.2 &> /root/ping-phone"),
],
label="ping phone from EPC",
critical=False,
required=job_wait_enb,
)
jobs_exp = job_wait_enb, job_start_phone, job_ping_phone_from_epc
########## extra nodes
# ssh -X not yet supported in apssh, so one option is to start them using
# a local process
# xxx to update: The following code kind of works, but it needs to be
# turned off, because the process in question would be killed
# at the end of the Scheduler orchestration (at the end of the run function)
# which is the exact time where it would be useful :)
# however the code for LocalJob appears to work fine, it would be nice to
# move it around - maybe in apssh ?
commands = []
if not extras:
commands.append(Run("echo no extra nodes specified - ignored"))
else:
if load_nodes:
commands.append(Run("rhubarbe", "usrpoff", *extra_hostnames))
commands.append(
Run("rhubarbe", "load", "-i", image_extra, *extra_hostnames))
commands.append(
Run("rhubarbe", "wait", "-t", 120, *extra_hostnames))
commands.append(Run("rhubarbe", "usrpon", *extra_hostnames))
elif reset_nodes:
commands.append(Run("rhubarbe", "reset", extra_hostnames))
commands.append(Run("rhubarbe", "wait", "-t", "120", *extra_hostnames))
job_load_extras = SshJob(
node=gwnode,
commands=commands,
label="load and wait extra nodes",
required=job_check_for_lease,
)
jobs_extras = [job_load_extras]
colors = ["wheat", "gray", "white"]
if spawn_xterms:
jobs_xterms_extras = [
SshJob(
node=extra_node,
command=Run("xterm -fn -*-fixed-medium-*-*-*-20-*-*-*-*-*-*-*"
" -bg {} -geometry 90x10".format(color),
x11=True),
label="xterm on node {}".format(extra_node.hostname),
required=job_load_extras,
# don't set forever; if we do, then these xterms get killed
# when all other tasks have completed
# forever = True,
)
for extra_node, color in zip(extra_nodes, itertools.cycle(colors))
]
jobs_extras += jobs_xterms_extras
# schedule the load phases only if required
sched = Scheduler(verbose=verbose)
# this is just a way to add a collection of jobs to the scheduler
sched.update(jobs_prepare)
sched.update(jobs_infra)
sched.update(jobs_enb)
sched.update(jobs_exp)
sched.update(jobs_extras)
# remove dangling requirements - if any - should not be needed but won't hurt either
sched.sanitize()
print(40 * "*")
if load_nodes:
print("LOADING IMAGES: (gw->{}, enb->{}, extras->{})".format(
load_nodes, image_gw, image_enb, image_extra))
elif reset_nodes:
print("RESETTING NODES")
else:
print("NODES ARE USED AS IS (no image loaded, no reset)")
sched.rain_check()
# Update the .dot and .png file for illustration purposes
if verbose:
sched.list()
name = "scenario-load" if load_nodes else \
"scenario-reset" if reset_nodes else \
"scenario"
sched.export_as_dotfile("{}.dot".format(name))
os.system("dot -Tpng {}.dot -o {}.png".format(name, name))
sched.list()
if not sched.orchestrate():
print("RUN KO : {}".format(sched.why()))
sched.debrief()
return False
else:
print("RUN OK")
return True