def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else '*-*-*-*-*-*'
if (crontabwindow.crontab_range(cwindow)):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
stype = 'task_scheduler'
aw = APIWrapper()
if (tdo.task_type != 'snapshot'):
logger.error('task_type(%s) is not snapshot.' % tdo.task_type)
return
meta = json.loads(tdo.json_meta)
validate_snap_meta(meta)
share = Share.objects.get(id=meta['share'])
max_count = int(float(meta['max_count']))
prefix = ('%s_' % meta['prefix'])
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state='started', start=now)
snap_created = False
t.state = 'error'
try:
name = ('%s_%s' % (meta['prefix'], datetime.now().strftime(
settings.SNAP_TS_FORMAT)))
url = ('shares/{}/snapshots/{}'.format(share.id, name))
# only create a new snap if there's no overflow situation. This
# prevents runaway snapshot creation beyond max_count+1.
if (delete(aw, share, stype, prefix, max_count)):
data = {
'snap_type': stype,
'uvisible': meta['visible'],
'writable': meta['writable'],
}
headers = {'content-type': 'application/json'}
aw.api_call(url,
data=data,
calltype='post',
headers=headers,
save_error=False)
logger.debug('created snapshot at %s' % url)
t.state = 'finished'
snap_created = True
except Exception as e:
logger.error('Failed to create snapshot at %s' % url)
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
# best effort pruning without erroring out. If deletion fails, we'll
# have max_count+1 number of snapshots and it would be dealt with on
# the next round.
if (snap_created):
delete(aw, share, stype, prefix, max_count)
else:
logger.debug('Cron scheduled task not executed because outside '
'time/day window ranges')
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else "*-*-*-*-*-*"
if crontabwindow.crontab_range(cwindow):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
if tdo.task_type != "scrub":
return logger.error("task_type(%s) is not scrub." % tdo.task_type)
meta = json.loads(tdo.json_meta)
aw = APIWrapper()
if Task.objects.filter(task_def=tdo).exists():
ll = Task.objects.filter(task_def=tdo).order_by("-id")[0]
if ll.state not in TERMINAL_SCRUB_STATES:
logger.debug("Non terminal state(%s) for task(%d). Checking "
"again." % (ll.state, tid))
cur_state = update_state(ll, meta["pool"], aw)
if cur_state not in TERMINAL_SCRUB_STATES:
return logger.debug("Non terminal state(%s) for task(%d). "
"A new task will not be run." %
(cur_state, tid))
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state="started", start=now)
url = "pools/%s/scrub" % meta["pool"]
try:
aw.api_call(url, data=None, calltype="post", save_error=False)
logger.debug("Started scrub at %s" % url)
t.state = "running"
except Exception as e:
logger.error("Failed to start scrub at %s" % url)
t.state = "error"
logger.exception(e)
finally:
t.save()
while True:
cur_state = update_state(t, meta["pool"], aw)
if cur_state in TERMINAL_SCRUB_STATES:
logger.debug("task(%d) finished with state(%s)." %
(tid, cur_state))
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
break
logger.debug("pending state(%s) for scrub task(%d). Will check "
"again in 60 seconds." % (cur_state, tid))
time.sleep(60)
else:
logger.debug(
"Cron scheduled task not executed because outside time/day window ranges"
)
def run(self):
total_sleep = 0
while True:
if (os.getppid() != self.ppid):
for w in self.workers.keys():
worker = self.workers[w]
if (worker.is_alive()):
#@todo: signal worker to cleanup and exit.
worker.task['queue'].put('stop')
break
for w in self.workers.keys():
if (not self.workers[w].is_alive()):
to = Task.objects.get(id=w)
if (self.workers[w].exitcode == 0):
to.state = 'finished'
else:
to.state = 'error'
to.end = datetime.utcnow().replace(tzinfo=utc)
to.save()
del(self.workers[w])
try:
if (total_sleep >= 60):
for td in TaskDefinition.objects.filter(enabled=True):
now = datetime.utcnow().replace(second=0,
microsecond=0,
tzinfo=utc)
if (self._schedulable(td, now)):
t = Task(task_def=td, state='scheduled',
start=now)
t.save()
total_sleep = 0
for t in Task.objects.filter(state='scheduled'):
worker = TaskWorker(t)
self.workers[t.id] = worker
worker.daemon = True
worker.start()
if (worker.is_alive()):
t.state = 'running'
else:
t.state = 'error'
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
except DatabaseError, e:
e_msg = ('Error getting the list of scheduled tasks. Moving'
' on')
logger.error(e_msg)
logger.exception(e)
finally:
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else '*-*-*-*-*-*'
if (crontabwindow.crontab_range(cwindow)):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
if (tdo.task_type != 'scrub'):
return logger.error('task_type(%s) is not scrub.' % tdo.task_type)
meta = json.loads(tdo.json_meta)
aw = APIWrapper()
if (Task.objects.filter(task_def=tdo).exists()):
ll = Task.objects.filter(task_def=tdo).order_by('-id')[0]
if ll.state not in TERMINAL_SCRUB_STATES:
logger.debug('Non terminal state(%s) for task(%d). Checking '
'again.' % (ll.state, tid))
cur_state = update_state(ll, meta['pool'], aw)
if cur_state not in TERMINAL_SCRUB_STATES:
return logger.debug('Non terminal state(%s) for task(%d). '
'A new task will not be run.' %
(cur_state, tid))
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state='started', start=now)
url = ('pools/%s/scrub' % meta['pool'])
try:
aw.api_call(url, data=None, calltype='post', save_error=False)
logger.debug('Started scrub at %s' % url)
t.state = 'running'
except Exception as e:
logger.error('Failed to start scrub at %s' % url)
t.state = 'error'
logger.exception(e)
finally:
t.save()
while True:
cur_state = update_state(t, meta['pool'], aw)
if cur_state in TERMINAL_SCRUB_STATES:
logger.debug('task(%d) finished with state(%s).' %
(tid, cur_state))
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
break
logger.debug('pending state(%s) for scrub task(%d). Will check '
'again in 60 seconds.' % (cur_state, tid))
time.sleep(60)
else:
logger.debug('Cron scheduled task not executed because outside '
'time/day window ranges')
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else '*-*-*-*-*-*'
if (crontabwindow.crontab_range(cwindow)):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
if (tdo.task_type != 'scrub'):
return logger.error('task_type(%s) is not scrub.' % tdo.task_type)
meta = json.loads(tdo.json_meta)
aw = APIWrapper()
if (Task.objects.filter(task_def=tdo).exists()):
ll = Task.objects.filter(task_def=tdo).order_by('-id')[0]
if ll.state not in TERMINAL_SCRUB_STATES:
logger.debug('Non terminal state(%s) for task(%d). Checking '
'again.' % (ll.state, tid))
cur_state = update_state(ll, meta['pool'], aw)
if cur_state not in TERMINAL_SCRUB_STATES:
return logger.debug('Non terminal state(%s) for task(%d). '
'A new task will not be run.' %
(cur_state, tid))
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state='started', start=now)
url = ('pools/%s/scrub' % meta['pool'])
try:
aw.api_call(url, data=None, calltype='post', save_error=False)
logger.debug('Started scrub at %s' % url)
t.state = 'running'
except Exception as e:
logger.error('Failed to start scrub at %s' % url)
t.state = 'error'
logger.exception(e)
finally:
t.save()
while True:
cur_state = update_state(t, meta['pool'], aw)
if cur_state in TERMINAL_SCRUB_STATES:
logger.debug('task(%d) finished with state(%s).' %
(tid, cur_state))
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
break
logger.debug('pending state(%s) for scrub task(%d). Will check '
'again in 60 seconds.' % (cur_state, tid))
time.sleep(60)
else:
logger.debug('Cron scheduled task not executed because outside '
'time/day window ranges')
def run(self):
total_sleep = 0
while True:
if (os.getppid() != self.ppid):
for w in self.workers.keys():
worker = self.workers[w]
if (worker.is_alive()):
#@todo: signal worker to cleanup and exit.
worker.task['queue'].put('stop')
break
for w in self.workers.keys():
if (not self.workers[w].is_alive()):
to = Task.objects.get(id=w)
if (self.workers[w].exitcode == 0):
to.state = 'finished'
else:
to.state = 'error'
to.end = datetime.utcnow().replace(tzinfo=utc)
to.save()
del (self.workers[w])
try:
if (total_sleep >= 60):
for td in TaskDefinition.objects.filter(enabled=True):
now = datetime.utcnow().replace(second=0,
microsecond=0,
tzinfo=utc)
if (self._schedulable(td, now)):
t = Task(task_def=td, state='scheduled', start=now)
t.save()
total_sleep = 0
for t in Task.objects.filter(state='scheduled'):
worker = TaskWorker(t)
self.workers[t.id] = worker
worker.daemon = True
worker.start()
if (worker.is_alive()):
t.state = 'running'
else:
t.state = 'error'
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
except DatabaseError, e:
e_msg = ('Error getting the list of scheduled tasks. Moving'
' on')
logger.error(e_msg)
logger.exception(e)
finally:
def run(self):
running_tasks = {}
baseurl = 'https://localhost/api/'
while True:
if (os.getppid() != self.ppid):
break
try:
for td in TaskDefinition.objects.filter(enabled=True):
now = datetime.utcnow().replace(second=0,
microsecond=0,
tzinfo=utc)
if (self._schedulable(td, now)):
if (Task.objects.filter(
task_def=td,
state__regex=r'(scheduled|started|running)').
exists()):
logger.debug(
'there is already a task scheduled or running for this definition'
)
else:
t = Task(task_def=td, state='scheduled', start=now)
t.save()
for t in Task.objects.filter(state='scheduled'):
meta = json.loads(t.task_def.json_meta)
if (t.task_def.task_type == 'scrub'):
url = ('%spools/%s/scrub' % (baseurl, meta['pool']))
try:
api_call(url, data=None, calltype='post')
t.state = 'running'
except:
t.state = 'error'
finally:
t.save()
if (t.state == 'running'):
running_tasks[t.id] = True
elif (t.task_def.task_type == 'snapshot'):
stype = 'task_scheduler'
try:
self._validate_snap_meta(meta)
name = ('%s_%s' %
(meta['prefix'], datetime.utcnow().replace(
tzinfo=utc).strftime(
settings.SNAP_TS_FORMAT)))
url = ('%sshares/%s/snapshots/%s' %
(baseurl, meta['share'], name))
data = {
'snap_type': stype,
'uvisible': meta['visible'],
}
headers = {'content-type': 'application/json'}
api_call(url,
data=data,
calltype='post',
headers=headers)
t.state = 'finished'
except Exception, e:
t.state = 'error'
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
max_count = int(float(meta['max_count']))
share = Share.objects.get(name=meta['share'])
prefix = ('%s_' % meta['prefix'])
snapshots = Snapshot.objects.filter(
share=share,
snap_type=stype,
name__startswith=prefix).order_by('-id')
if (len(snapshots) > max_count):
for snap in snapshots[max_count:]:
url = ('%s/shares/%s/snapshots/%s' %
(baseurl, meta['share'], snap.name))
try:
api_call(url, data=None, calltype='delete')
except Exception, e:
logger.error('Failed to delete old '
'snapshot(%s)' % snap.name)
logger.exception(e)
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else "*-*-*-*-*-*"
if crontabwindow.crontab_range(cwindow):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
aw = APIWrapper()
if tdo.task_type not in ["reboot", "shutdown", "suspend"]:
logger.error(
"task_type(%s) is not a system reboot, "
"shutdown or suspend." % tdo.task_type
)
return
meta = json.loads(tdo.json_meta)
validate_shutdown_meta(meta)
if not run_conditions_met(meta):
logger.debug(
"Cron scheduled task not executed because the run conditions have not been met"
)
return
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
schedule = now + timedelta(minutes=3)
t = Task(task_def=tdo, state="scheduled", start=now, end=schedule)
try:
# set default command url before checking if it's a shutdown
# and if we have an rtc wake up
url = "commands/%s" % tdo.task_type
# if task_type is shutdown and rtc wake up true
# parse crontab hour & minute vs rtc hour & minute to state
# if wake will occur same day or next day, finally update
# command url adding wake up epoch time
if tdo.task_type in ["shutdown", "suspend"] and meta["wakeup"]:
crontab_fields = tdo.crontab.split()
crontab_time = int(crontab_fields[1]) * 60 + int(crontab_fields[0])
wakeup_time = meta["rtc_hour"] * 60 + meta["rtc_minute"]
# rtc wake up requires UTC epoch, but users on WebUI set time
# thinking to localtime, so first we set wake up time,
# update it if wake up is on next day, finally move it to UTC
# and get its epoch
epoch = datetime.now().replace(
hour=int(meta["rtc_hour"]),
minute=int(meta["rtc_minute"]),
second=0,
microsecond=0,
)
# if wake up < crontab time wake up will run next day
if crontab_time > wakeup_time:
epoch += timedelta(days=1)
epoch = epoch.strftime("%s")
url = "%s/%s" % (url, epoch)
aw.api_call(url, data=None, calltype="post", save_error=False)
logger.debug("System %s scheduled" % tdo.task_type)
t.state = "finished"
except Exception as e:
t.state = "failed"
logger.error("Failed to schedule system %s" % tdo.task_type)
logger.exception(e)
finally:
# t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
else:
logger.debug(
"Cron scheduled task not executed because outside time/day window ranges"
)
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else '*-*-*-*-*-*'
if (crontabwindow.crontab_range(cwindow)):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
stype = 'task_scheduler'
aw = APIWrapper()
if (tdo.task_type != 'snapshot'):
logger.error('task_type(%s) is not snapshot.' % tdo.task_type)
return
meta = json.loads(tdo.json_meta)
validate_snap_meta(meta)
# to keep backwards compatibility, allow for share to be either
# name or id and migrate the metadata. To be removed in #1854
try:
share = Share.objects.get(id=meta['share'])
except ValueError:
share = Share.objects.get(name=meta['share'])
meta['share'] = share.id
tdo.json_meta = json.dumps(meta)
tdo.save()
max_count = int(float(meta['max_count']))
prefix = ('%s_' % meta['prefix'])
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state='started', start=now)
snap_created = False
t.state = 'error'
try:
name = ('%s_%s'
% (meta['prefix'],
datetime.now().strftime(settings.SNAP_TS_FORMAT)))
url = ('shares/{}/snapshots/{}'.format(share.id, name))
# only create a new snap if there's no overflow situation. This
# prevents runaway snapshot creation beyond max_count+1.
if(delete(aw, share, stype, prefix, max_count)):
data = {'snap_type': stype,
'uvisible': meta['visible'],
'writable': meta['writable'], }
headers = {'content-type': 'application/json'}
aw.api_call(url, data=data, calltype='post', headers=headers,
save_error=False)
logger.debug('created snapshot at %s' % url)
t.state = 'finished'
snap_created = True
except Exception as e:
logger.error('Failed to create snapshot at %s' % url)
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
# best effort pruning without erroring out. If deletion fails, we'll
# have max_count+1 number of snapshots and it would be dealt with on
# the next round.
if (snap_created):
delete(aw, share, stype, prefix, max_count)
else:
logger.debug('Cron scheduled task not executed because outside '
'time/day window ranges')
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state='started', start=now)
try:
name = ('%s_%s' % (meta['prefix'], datetime.utcnow().replace(
tzinfo=utc).strftime(settings.SNAP_TS_FORMAT)))
url = ('%sshares/%s/snapshots/%s' % (baseurl, meta['share'], name))
data = {
'snap_type': stype,
'uvisible': meta['visible'],
}
headers = {'content-type': 'application/json'}
api_call(url,
data=data,
calltype='post',
headers=headers,
save_error=False)
logger.debug('created snapshot at %s' % url)
t.state = 'finished'
except Exception, e:
logger.error('Failed to create snapshot at %s' % url)
t.state = 'error'
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
if __name__ == '__main__':
#takes one argument. taskdef object id.
main()
try:
aw.api_call(url, data=None, calltype='delete', save_error=False)
logger.debug('deleted old snapshot at %s' % url)
except Exception, e:
logger.error('Failed to delete old snapshot at %s' % url)
logger.exception(e)
return
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state='started', start=now)
try:
name = ('%s_%s' % (meta['prefix'], datetime.now().strftime(settings.SNAP_TS_FORMAT)))
url = ('shares/%s/snapshots/%s' % (meta['share'], name))
data = {'snap_type': stype,
'uvisible': meta['visible'], }
headers = {'content-type': 'application/json'}
aw.api_call(url, data=data, calltype='post', headers=headers, save_error=False)
logger.debug('created snapshot at %s' % url)
t.state = 'finished'
except Exception, e:
logger.error('Failed to create snapshot at %s' % url)
t.state = 'error'
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
if __name__ == '__main__':
#takes one argument. taskdef object id.
main()
def run(self):
running_tasks = {}
baseurl = 'https://localhost/api/'
while True:
if (os.getppid() != self.ppid):
break
try:
for td in TaskDefinition.objects.filter(enabled=True):
now = datetime.utcnow().replace(second=0,
microsecond=0,
tzinfo=utc)
if (self._schedulable(td, now)):
if (Task.objects.filter(
task_def=td,
state__regex=r'(scheduled|started|running)').exists()):
logger.debug('there is already a task scheduled or running for this definition')
else:
t = Task(task_def=td, state='scheduled',
start=now)
t.save()
for t in Task.objects.filter(state='scheduled'):
meta = json.loads(t.task_def.json_meta)
if (t.task_def.task_type == 'scrub'):
url = ('%spools/%s/scrub' % (baseurl, meta['pool']))
try:
api_call(url, data=None, calltype='post')
t.state = 'running'
except:
t.state = 'error'
finally:
t.save()
if (t.state == 'running'):
running_tasks[t.id] = True
elif (t.task_def.task_type == 'snapshot'):
stype = 'task_scheduler'
try:
self._validate_snap_meta(meta)
name = ('%s_%s' %
(meta['prefix'],
datetime.utcnow().replace(
tzinfo=utc).strftime(
settings.SNAP_TS_FORMAT)))
url = ('%sshares/%s/snapshots/%s' %
(baseurl, meta['share'], name))
data = {'snap_type': stype,
'uvisible': meta['visible'], }
headers = {'content-type': 'application/json'}
api_call(url, data=data, calltype='post',
headers=headers)
t.state = 'finished'
except Exception, e:
t.state = 'error'
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
max_count = int(float(meta['max_count']))
share = Share.objects.get(name=meta['share'])
prefix = ('%s_' % meta['prefix'])
snapshots = Snapshot.objects.filter(
share=share, snap_type=stype,
name__startswith=prefix).order_by('-id')
if (len(snapshots) > max_count):
for snap in snapshots[max_count:]:
url = ('%s/shares/%s/snapshots/%s' %
(baseurl, meta['share'], snap.name))
try:
api_call(url, data=None, calltype='delete')
except Exception, e:
logger.error('Failed to delete old '
'snapshot(%s)' % snap.name)
logger.exception(e)
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else '*-*-*-*-*-*'
if (crontabwindow.crontab_range(cwindow)):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
aw = APIWrapper()
if (tdo.task_type not in ['reboot', 'shutdown', 'suspend']):
logger.error('task_type(%s) is not a system reboot, '
'shutdown or suspend.' % tdo.task_type)
return
meta = json.loads(tdo.json_meta)
validate_shutdown_meta(meta)
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
schedule = now + timedelta(minutes=3)
t = Task(task_def=tdo, state='scheduled', start=now, end=schedule)
try:
# set default command url before checking if it's a shutdown
# and if we have an rtc wake up
url = ('commands/%s' % tdo.task_type)
# if task_type is shutdown and rtc wake up true
# parse crontab hour & minute vs rtc hour & minute to state
# if wake will occur same day or next day, finally update
# command url adding wake up epoch time
if (tdo.task_type in ['shutdown', 'suspend'] and meta['wakeup']):
crontab_fields = tdo.crontab.split()
crontab_time = (int(crontab_fields[1]) * 60 +
int(crontab_fields[0]))
wakeup_time = meta['rtc_hour'] * 60 + meta['rtc_minute']
# rtc wake up requires UTC epoch, but users on WebUI set time
# thinking to localtime, so first we set wake up time,
# update it if wake up is on next day, finally move it to UTC
# and get its epoch
epoch = datetime.now().replace(hour=int(meta['rtc_hour']),
minute=int(meta['rtc_minute']),
second=0,
microsecond=0)
# if wake up < crontab time wake up will run next day
if (crontab_time > wakeup_time):
epoch += timedelta(days=1)
epoch = epoch.strftime('%s')
url = ('%s/%s' % (url, epoch))
aw.api_call(url, data=None, calltype='post', save_error=False)
logger.debug('System %s scheduled' % tdo.task_type)
t.state = 'finished'
except Exception as e:
t.state = 'failed'
logger.error('Failed to schedule system %s' % tdo.task_type)
logger.exception(e)
finally:
# t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
else:
logger.debug('Cron scheduled task not executed because outside '
'time/day window ranges')
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else "*-*-*-*-*-*"
if crontabwindow.crontab_range(cwindow):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
stype = "task_scheduler"
aw = APIWrapper()
if tdo.task_type != "snapshot":
logger.error("task_type(%s) is not snapshot." % tdo.task_type)
return
meta = json.loads(tdo.json_meta)
validate_snap_meta(meta)
# to keep backwards compatibility, allow for share to be either
# name or id and migrate the metadata. To be removed in #1854
try:
share = Share.objects.get(id=meta["share"])
except ValueError:
share = Share.objects.get(name=meta["share"])
meta["share"] = share.id
tdo.json_meta = json.dumps(meta)
tdo.save()
max_count = int(float(meta["max_count"]))
prefix = "%s_" % meta["prefix"]
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
t = Task(task_def=tdo, state="started", start=now)
snap_created = False
t.state = "error"
try:
name = "%s_%s" % (
meta["prefix"],
datetime.now().strftime(settings.SNAP_TS_FORMAT),
)
url = "shares/{}/snapshots/{}".format(share.id, name)
# only create a new snap if there's no overflow situation. This
# prevents runaway snapshot creation beyond max_count+1.
if delete(aw, share, stype, prefix, max_count):
data = {
"snap_type": stype,
"uvisible": meta["visible"],
"writable": meta["writable"],
}
headers = {"content-type": "application/json"}
aw.api_call(url,
data=data,
calltype="post",
headers=headers,
save_error=False)
logger.debug("created snapshot at %s" % url)
t.state = "finished"
snap_created = True
except Exception as e:
logger.error("Failed to create snapshot at %s" % url)
logger.exception(e)
finally:
t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
# best effort pruning without erroring out. If deletion fails, we'll
# have max_count+1 number of snapshots and it would be dealt with on
# the next round.
if snap_created:
delete(aw, share, stype, prefix, max_count)
else:
logger.debug(
"Cron scheduled task not executed because outside time/day window ranges"
)
def main():
tid = int(sys.argv[1])
cwindow = sys.argv[2] if len(sys.argv) > 2 else '*-*-*-*-*-*'
if (crontabwindow.crontab_range(cwindow)):
# Performance note: immediately check task execution time/day window
# range to avoid other calls
tdo = TaskDefinition.objects.get(id=tid)
aw = APIWrapper()
if (tdo.task_type not in ['reboot', 'shutdown', 'suspend']):
logger.error('task_type(%s) is not a system reboot, '
'shutdown or suspend.' % tdo.task_type)
return
meta = json.loads(tdo.json_meta)
validate_shutdown_meta(meta)
now = datetime.utcnow().replace(second=0, microsecond=0, tzinfo=utc)
schedule = now + timedelta(minutes=3)
t = Task(task_def=tdo, state='scheduled', start=now, end=schedule)
try:
# set default command url before checking if it's a shutdown
# and if we have an rtc wake up
url = ('commands/%s' % tdo.task_type)
# if task_type is shutdown and rtc wake up true
# parse crontab hour & minute vs rtc hour & minute to state
# if wake will occur same day or next day, finally update
# command url adding wake up epoch time
if (tdo.task_type in ['shutdown', 'suspend'] and meta['wakeup']):
crontab_fields = tdo.crontab.split()
crontab_time = (int(crontab_fields[1]) * 60 +
int(crontab_fields[0]))
wakeup_time = meta['rtc_hour'] * 60 + meta['rtc_minute']
# rtc wake up requires UTC epoch, but users on WebUI set time
# thinking to localtime, so first we set wake up time,
# update it if wake up is on next day, finally move it to UTC
# and get its epoch
epoch = datetime.now().replace(hour=int(meta['rtc_hour']),
minute=int(meta['rtc_minute']),
second=0, microsecond=0)
# if wake up < crontab time wake up will run next day
if (crontab_time > wakeup_time):
epoch += timedelta(days=1)
epoch = epoch.strftime('%s')
url = ('%s/%s' % (url, epoch))
aw.api_call(url, data=None, calltype='post', save_error=False)
logger.debug('System %s scheduled' % tdo.task_type)
t.state = 'finished'
except Exception as e:
t.state = 'failed'
logger.error('Failed to schedule system %s' % tdo.task_type)
logger.exception(e)
finally:
# t.end = datetime.utcnow().replace(tzinfo=utc)
t.save()
else:
logger.debug('Cron scheduled task not executed because outside '
'time/day window ranges')