def execute_power_cycle_device(device, delay=30):
'''Powercycle a device
Args:
device ('obj'): Device object
'''
# Destroy device object
device.destroy_all()
# Find device's power cycler information
pc_dict = getattr(device, 'peripherals', {}).get('power_cycler', {})
if not pc_dict:
raise Exception("Powercycler information is not provided in the "
"testbed YAML file for device '{}'\nUnable to "
"powercycle device".format(device.name))
else:
pc = PowerCycler(**pc_dict)
if not pc_dict.get('outlets'):
raise Exception("Powercycler 'outlets' have not been provided for "
"device '{}'".format(device.name))
else:
pc_outlets = pc_dict['outlets']
# Init powercycler
pc = PowerCycler(**pc_dict)
# Turn powercycler off
try:
device.api.change_power_cycler_state(powercycler=pc,
state='off',
outlets=pc_outlets)
except Exception as e:
raise Exception("Failed to powercycle device off\n{}".format(str(e)))
else:
log.info("Powercycled device '{}' to 'off' state".format(device.name))
# Wait specified amount of time before turning powercycler back on
log.info(
"Waiting '{}' seconds before powercycling device on".format(delay))
time.sleep(delay)
# Turn powercycler on
try:
device.api.change_power_cycler_state(powercycler=pc,
state='on',
outlets=pc_outlets)
except Exception as e:
raise Exception("Failed to powercycle device on\n{}".format(str(e)))
else:
log.info("Powercycled device '{}' to 'on' state".format(device.name))
def execute_power_cycle_device(device, delay=30):
''' Powercycle a device
Args:
device ('obj'): Device object
delay (int, optional): Time in seconds to sleep between turning the
device off and then back on. Defaults to 30.
Raises:
Exception if powercycling fails.
Returns:
None
'''
# Destroy device object
device.destroy_all()
# Find device's power cycler information
power_cyclers = getattr(device, 'peripherals', {}).get('power_cycler')
if not power_cyclers:
raise Exception("Powercycler information is not provided in the "
"testbed YAML file for device '{}'\nUnable to "
"powercycle device".format(device.name))
# type(device['peripherals']['power_cycler']) should be a list to support
# redundant PDUs. It can also be a dict in case of single PDU (legacy).
if isinstance(power_cyclers, dict):
power_cyclers = [power_cyclers]
pcs = []
# Initialize each power cycler. Save the powercycler object and outlets
# for later user
for power_cycler in power_cyclers:
if power_cycler.get('outlets'):
# Cyberswitching based powercyclers require the testbed object
power_cycler['testbed'] = device.testbed
pcs.append(
(PowerCycler(**power_cycler), power_cycler['outlets'])
)
else:
raise Exception("Powercycler outlets have not been provided:\n"
" Device: {}\n"
" Powercycler info: {}".format(device.name, power_cycler))
# Turn power cyclers off
for pc, outlets in pcs:
try:
device.api.change_power_cycler_state(
powercycler=pc, state='off', outlets=outlets)
except Exception as e:
raise Exception("Failed to powercycle device off:\n{}".format(str(e)))
log.info("Powercycled device '{}' to 'off' state".format(device.name))
log.info("Waiting '{}' seconds before powercycling device on".format(delay))
time.sleep(delay)
# Turn power cyclers on
for pc, outlets in pcs:
try:
device.api.change_power_cycler_state(
powercycler=pc, state='on', outlets=outlets)
except Exception as e:
raise Exception("Failed to powercycle device on:\n{}".format(str(e)))
log.info("Powercycled device '{}' to 'on' state".format(device.name))