def give_to_pool(cls, pool, custom_limit=None):
"""Give appliances from shepherd to the pool where the maximum count is specified by pool
or you can specify a custom limit
"""
from appliances.tasks import (
appliance_power_on, mark_appliance_ready, wait_appliance_ready, appliance_yum_update,
appliance_reboot)
limit = custom_limit if custom_limit is not None else pool.total_count
appliances = []
with transaction.atomic():
for template in pool.possible_templates:
for appliance in cls.unassigned().filter(
template=template).all()[:limit - len(appliances)]:
with appliance.kill_lock:
appliance.appliance_pool = pool
appliance.save()
appliance.set_status("Given to pool {}".format(pool.id))
tasks = [appliance_power_on.si(appliance.id)]
if pool.yum_update:
tasks.append(appliance_yum_update.si(appliance.id))
tasks.append(
appliance_reboot.si(appliance.id, if_needs_restarting=True))
if appliance.preconfigured:
tasks.append(wait_appliance_ready.si(appliance.id))
else:
tasks.append(mark_appliance_ready.si(appliance.id))
chain(*tasks)()
appliances.append(appliance)
if len(appliances) == limit:
break
return len(appliances)
def give_to_pool(cls, pool, custom_limit=None):
"""Give appliances from shepherd to the pool where the maximum count is specified by pool
or you can specify a custom limit
"""
from appliances.tasks import (appliance_power_on, mark_appliance_ready,
wait_appliance_ready,
appliance_yum_update, appliance_reboot)
limit = custom_limit if custom_limit is not None else pool.total_count
appliances = []
with transaction.atomic():
for template in pool.possible_templates:
for appliance in cls.unassigned().filter(
template=template).all()[:limit - len(appliances)]:
with appliance.kill_lock:
appliance.appliance_pool = pool
appliance.save()
appliance.set_status("Given to pool {}".format(
pool.id))
tasks = [appliance_power_on.si(appliance.id)]
if pool.yum_update:
tasks.append(appliance_yum_update.si(appliance.id))
tasks.append(
appliance_reboot.si(appliance.id,
if_needs_restarting=True))
if appliance.preconfigured:
tasks.append(wait_appliance_ready.si(appliance.id))
else:
tasks.append(mark_appliance_ready.si(appliance.id))
chain(*tasks)()
appliances.append(appliance)
if len(appliances) == limit:
break
return len(appliances)
def power_on(user, appliance, wait_ready=True):
"""Power on the appliance. If task is called, an id is returned, otherwise None.
You can specify appliance by IP address, id or name.
"""
appliance = get_appliance(appliance, user)
if appliance.power_state != Appliance.Power.ON:
tasks = [appliance_power_on.si(appliance.id)]
if wait_ready:
tasks.append(wait_appliance_ready.si(appliance.id))
else:
tasks.append(mark_appliance_ready.si(appliance.id))
return chain(*tasks)().task_id
def power_on(user, appliance, wait_ready=True):
"""Power on the appliance. If task is called, an id is returned, otherwise None.
You can specify appliance by IP address, id or name.
"""
appliance = get_appliance(appliance, user)
if appliance.power_state != Appliance.Power.ON:
tasks = [appliance_power_on.si(appliance.id)]
if wait_ready:
tasks.append(wait_appliance_ready.si(appliance.id))
else:
tasks.append(mark_appliance_ready.si(appliance.id))
return chain(*tasks)().task_id
def appliance_action(request, appliance_id, action, x=None):
try:
appliance = Appliance.objects.get(id=appliance_id)
except ObjectDoesNotExist:
messages.warning(
request,
'Appliance with ID {} does not exist!.'.format(appliance_id))
return go_back_or_home(request)
if not can_operate_appliance_or_pool(appliance, request.user):
messages.warning(
request,
'This appliance belongs either to some other user or nobody.')
return go_back_or_home(request)
if action == "start":
if appliance.power_state != Appliance.Power.ON:
chain(appliance_power_on.si(appliance.id),
(wait_appliance_ready if appliance.preconfigured else
mark_appliance_ready).si(appliance.id))()
messages.success(request, 'Initiated launch of appliance.')
return go_back_or_home(request)
else:
messages.info(request, 'Appliance was already powered on.')
return go_back_or_home(request)
elif action == "reboot":
if appliance.power_state == Appliance.Power.ON:
chain(appliance_reboot.si(appliance.id),
mark_appliance_ready.si(appliance.id))()
messages.success(request, 'Initiated reboot of appliance.')
return go_back_or_home(request)
else:
messages.warning(request,
'Only powered on appliances can be rebooted')
return go_back_or_home(request)
elif action == "stop":
if appliance.power_state != Appliance.Power.OFF:
appliance_power_off.delay(appliance.id)
messages.success(request, 'Initiated stop of appliance.')
return go_back_or_home(request)
else:
messages.info(request, 'Appliance was already powered off.')
return go_back_or_home(request)
elif action == "suspend":
if appliance.power_state != Appliance.Power.SUSPENDED:
appliance_suspend.delay(appliance.id)
messages.success(request, 'Initiated suspend of appliance.')
return go_back_or_home(request)
else:
messages.info(request, 'Appliance was already suspended.')
return go_back_or_home(request)
elif action == "kill":
Appliance.kill(appliance)
messages.success(request, 'Kill initiated.')
return go_back_or_home(request)
elif action == "dont_expire":
if not request.user.is_superuser:
messages.warning(
request,
'Disabling expiration time is allowed only for superusers.')
return go_back_or_home(request)
with transaction.atomic():
appliance.leased_until = None
appliance.save()
messages.success(request, 'Lease disabled successfully. Be careful.')
return go_back_or_home(request)
elif action == "set_lease":
if not can_operate_appliance_or_pool(appliance, request.user):
messages.warning(
request,
'This appliance belongs either to some other user or nobody.')
return go_back_or_home(request)
appliance.prolong_lease(time=int(x))
messages.success(request, 'Lease prolonged successfully.')
return go_back_or_home(request)
else:
messages.warning(request, "Unknown action '{}'".format(action))
def appliance_action(request, appliance_id, action, x=None):
try:
appliance = Appliance.objects.get(id=appliance_id)
except ObjectDoesNotExist:
messages.warning(request, 'Appliance with ID {} does not exist!.'.format(appliance_id))
return go_back_or_home(request)
if not can_operate_appliance_or_pool(appliance, request.user):
messages.warning(request, 'This appliance belongs either to some other user or nobody.')
return go_back_or_home(request)
if action == "start":
if appliance.power_state != Appliance.Power.ON:
chain(
appliance_power_on.si(appliance.id),
(wait_appliance_ready if appliance.preconfigured else mark_appliance_ready).si(
appliance.id))()
messages.success(request, 'Initiated launch of appliance.')
return go_back_or_home(request)
else:
messages.info(request, 'Appliance was already powered on.')
return go_back_or_home(request)
elif action == "reboot":
if appliance.power_state == Appliance.Power.ON:
chain(
appliance_reboot.si(appliance.id),
mark_appliance_ready.si(appliance.id))()
messages.success(request, 'Initiated reboot of appliance.')
return go_back_or_home(request)
else:
messages.warning(request, 'Only powered on appliances can be rebooted')
return go_back_or_home(request)
elif action == "stop":
if appliance.power_state != Appliance.Power.OFF:
appliance_power_off.delay(appliance.id)
messages.success(request, 'Initiated stop of appliance.')
return go_back_or_home(request)
else:
messages.info(request, 'Appliance was already powered off.')
return go_back_or_home(request)
elif action == "suspend":
if appliance.power_state != Appliance.Power.SUSPENDED:
appliance_suspend.delay(appliance.id)
messages.success(request, 'Initiated suspend of appliance.')
return go_back_or_home(request)
else:
messages.info(request, 'Appliance was already suspended.')
return go_back_or_home(request)
elif action == "kill":
Appliance.kill(appliance)
messages.success(request, 'Kill initiated.')
return go_back_or_home(request)
elif action == "dont_expire":
if not request.user.is_superuser:
messages.warning(request, 'Disabling expiration time is allowed only for superusers.')
return go_back_or_home(request)
with transaction.atomic():
appliance.leased_until = None
appliance.save()
messages.success(request, 'Lease disabled successfully. Be careful.')
return go_back_or_home(request)
elif action == "set_lease":
if not can_operate_appliance_or_pool(appliance, request.user):
messages.warning(request, 'This appliance belongs either to some other user or nobody.')
return go_back_or_home(request)
appliance.prolong_lease(time=int(x))
messages.success(request, 'Lease prolonged successfully.')
return go_back_or_home(request)
else:
messages.warning(request, "Unknown action '{}'".format(action))
