netbox-agent/netbox_agent/server.py
2019-08-07 10:32:23 +02:00

273 lines
9.6 KiB
Python

import logging
from pprint import pprint
import socket
from netbox_agent.config import netbox_instance as nb
import netbox_agent.dmidecode as dmidecode
from netbox_agent.location import Datacenter, Rack
from netbox_agent.network import Network
class ServerBase():
def __init__(self, dmi=None):
if dmi:
self.dmi = dmi
else:
self.dmi = dmidecode.parse()
self.system = self.dmi.get_by_type('System')
self.bios = self.dmi.get_by_type('BIOS')
self.network = Network(server=self)
def get_datacenter(self):
dc = Datacenter()
return dc.get()
def get_netbox_datacenter(self):
datacenter = nb.dcim.sites.get(
slug=self.get_datacenter()
)
return datacenter
def get_rack(self):
rack = Rack()
return rack.get()
def get_netbox_rack(self):
rack = nb.dcim.racks.get(
name=self.get_rack(),
datacenter=self.get_netbox_datacenter(),
)
return rack
def get_product_name(self):
"""
Return the Chassis Name from dmidecode info
"""
return self.system[0]['Product Name']
def get_service_tag(self):
"""
Return the Service Tag from dmidecode info
"""
return self.system[0]['Serial Number']
def get_hostname(self):
return '{}'.format(socket.gethostname())
def is_blade(self):
raise NotImplementedError
def get_blade_slot(self):
raise NotImplementedError
def get_chassis(self):
raise NotImplementedError
def get_chassis_service_tag(self):
raise NotImplementedError
def get_bios_version(self):
raise NotImplementedError
def get_bios_version_attr(self):
raise NotImplementedError
def get_bios_release_date(self):
raise NotImplementedError
def _netbox_create_blade_chassis(self, datacenter):
device_type = nb.dcim.device_types.get(
model=self.get_chassis(),
)
if not device_type:
error_msg = 'Chassis "{}" doesn\'t exist'.format(self.get_chassis())
logging.error(error_msg)
raise Exception(error_msg)
device_role = nb.dcim.device_roles.get(
name='Server Chassis',
)
serial = self.get_chassis_service_tag()
logging.info('Creating chassis blade (serial: {serial})'.format(
serial=serial))
new_chassis = nb.dcim.devices.create(
name=''.format(),
device_type=device_type.id,
serial=serial,
device_role=device_role.id,
site=datacenter.id if datacenter else None,
)
return new_chassis
def _netbox_create_blade(self, chassis, datacenter):
device_role = nb.dcim.device_roles.get(
name='Blade',
)
device_type = nb.dcim.device_types.get(
model=self.get_product_name(),
)
serial = self.get_service_tag()
hostname = self.get_hostname()
logging.info(
'Creating blade (serial: {serial}) {hostname} on chassis {chassis_serial}'.format(
serial=serial, hostname=hostname, chassis_serial=chassis.serial
))
new_blade = nb.dcim.devices.create(
name=hostname,
serial=serial,
device_role=device_role.id,
device_type=device_type.id,
parent_device=chassis.id,
site=datacenter.id if datacenter else None,
)
return new_blade
def _netbox_create_server(self, datacenter):
device_role = nb.dcim.device_roles.get(
name='Server',
)
device_type = nb.dcim.device_types.get(
model=self.get_product_name(),
)
if not device_type:
raise Exception('Chassis "{}" doesn\'t exist'.format(self.get_chassis()))
serial = self.get_service_tag()
hostname = self.get_hostname()
logging.info('Creating server (serial: {serial}) {hostname}'.format(
serial=serial, hostname=hostname))
new_server = nb.dcim.devices.create(
name=hostname,
serial=serial,
device_role=device_role.id,
device_type=device_type.id,
site=datacenter.id if datacenter else None,
)
return new_server
def get_netbox_server(self):
return nb.dcim.devices.get(serial=self.get_service_tag())
def netbox_create(self):
logging.debug('Creating Server..')
datacenter = self.get_netbox_datacenter()
if self.is_blade():
# let's find the blade
serial = self.get_service_tag()
blade = nb.dcim.devices.get(serial=serial)
chassis = nb.dcim.devices.get(serial=self.get_chassis_service_tag())
# if it doesn't exist, create it
if not blade:
# check if the chassis exist before
# if it doesn't exist, create it
chassis = nb.dcim.devices.get(
serial=self.get_chassis_service_tag()
)
if not chassis:
chassis = self._netbox_create_blade_chassis(datacenter)
blade = self._netbox_create_blade(chassis, datacenter)
# Find the slot and update it with our blade
slot = self.get_blade_slot()
device_bays = nb.dcim.device_bays.filter(
device_id=chassis.id,
name='Blade {}'.format(slot),
)
if len(device_bays) > 0:
logging.info('Updating blade ({serial}) slot on: Blade {slot}'.format(
serial=serial, slot=slot))
device_bay = device_bays[0]
device_bay.installed_device = blade
device_bay.save()
else:
server = nb.dcim.devices.get(serial=self.get_service_tag())
if not server:
self._netbox_create_server()
self.network.create_netbox_network_cards()
logging.debug('Server created!')
def netbox_update(self):
"""
Netbox method to update info about our server/blade
Handle:
* new chasis for a blade
* new slot for a bblade
* hostname update
* new network infos
"""
logging.debug('Updating Server...')
server = nb.dcim.devices.get(serial=self.get_service_tag())
if not server:
raise Exception("The server (Serial: {}) isn't yet registered in Netbox, register"
'it before updating it'.format(self.get_service_tag()))
update = False
if self.is_blade():
# get current chassis device bay
device_bay = nb.dcim.device_bays.get(
server.parent_device.device_bay.id
)
netbox_chassis_serial = server.parent_device.device_bay.device.serial
chassis = server.parent_device.device_bay.device
move_device_bay = False
# check chassis serial with dmidecode
if netbox_chassis_serial != self.get_chassis_service_tag():
move_device_bay = True
# try to find the new netbox chassis
chassis = nb.dcim.devices.get(
serial=self.get_chassis_service_tag()
)
# create the new chassis if it doesn't exist
if not chassis:
datacenter = self.get_netbox_datacenter()
chassis = self._netbox_create_blade_chassis(datacenter)
if move_device_bay or device_bay.name != 'Blade {}'.format(self.get_blade_slot()):
logging.info('Device ({serial}) seems to have moved, reseting old slot..'.format(
serial=server.serial))
device_bay.installed_device = None
device_bay.save()
slot = self.get_blade_slot()
# Find the slot and update it with our blade
device_bays = nb.dcim.device_bays.filter(
device_id=chassis.id,
name='Blade {}'.format(slot),
)
if len(device_bays) > 0:
logging.info(
'Setting device ({serial}) new slot on Blade {slot} '
'(Chassis {chassis_serial})..'.format(
serial=server.serial, slot=slot, chassis_serial=chassis.serial
))
device_bay = device_bays[0]
device_bay.installed_device = server
device_bay.save()
# for every other specs
# check hostname
if server.name != self.get_hostname():
update = True
server.hostname = self.get_hostname()
# check network cards
self.network.update_netbox_network_cards()
if update:
server.save()
logging.debug('Finished updating Server!')
def print_debug(self):
# FIXME: do something more generic by looping on every get_* methods
print('Datacenter:', self.get_datacenter())
print('Netbox Datacenter:', self.get_netbox_datacenter())
print('Rack:', self.get_rack())
print('Netbox Rack:', self.get_netbox_rack())
print('Is blade:', self.is_blade())
print('Product Name:', self.get_product_name())
print('Chassis:', self.get_chassis())
print('Chassis service tag:', self.get_chassis_service_tag())
print('Service tag:', self.get_service_tag())
print('NIC:',)
pprint(self.network.get_network_cards())
pass