netbox-agent/netbox_agent/server.py
2021-05-12 19:41:01 +02:00

417 lines
15 KiB
Python

import logging
import socket
import subprocess
import sys
from pprint import pprint
import netbox_agent.dmidecode as dmidecode
from netbox_agent.config import config
from netbox_agent.config import netbox_instance as nb
from netbox_agent.inventory import Inventory
from netbox_agent.location import Datacenter, Rack, Tenant
from netbox_agent.misc import create_netbox_tags, get_device_role, get_device_type
from netbox_agent.network import ServerNetwork
from netbox_agent.power import PowerSupply
from packaging import version
class ServerBase():
def __init__(self, dmi=None):
if dmi:
self.dmi = dmi
else:
self.dmi = dmidecode.parse()
self.baseboard = dmidecode.get_by_type(self.dmi, 'Baseboard')
self.bios = dmidecode.get_by_type(self.dmi, 'BIOS')
self.chassis = dmidecode.get_by_type(self.dmi, 'Chassis')
self.system = dmidecode.get_by_type(self.dmi, 'System')
self.network = None
self.tags = list(set([x.strip() for x in config.device.tags.split(',') if x.strip()])) if config.device.tags else []
self.nb_tags = list(create_netbox_tags(self.tags))
self.netbox_version = nb.version
def get_tenant(self):
tenant = Tenant()
return tenant.get()
def get_netbox_tenant(self):
tenant = self.get_tenant()
if tenant is None:
return None
nb_tenant = nb.tenancy.tenants.get(
slug=self.get_tenant()
)
return nb_tenant
def get_datacenter(self):
dc = Datacenter()
return dc.get()
def get_netbox_datacenter(self):
dc = self.get_datacenter()
if dc is None:
logging.error("Specificing a datacenter (Site) is mandatory in Netbox")
sys.exit(1)
nb_dc = nb.dcim.sites.get(
slug=dc,
)
if nb_dc is None:
logging.error("Site (slug: {}) has not been found".format(dc))
sys.exit(1)
return nb_dc
def update_netbox_location(self, server):
dc = self.get_datacenter()
rack = self.get_rack()
nb_rack = self.get_netbox_rack()
nb_dc = self.get_netbox_datacenter()
update = False
if dc and server.site and server.site.slug != nb_dc.slug:
logging.info('Datacenter location has changed from {} to {}, updating'.format(
server.site.slug,
nb_dc.slug,
))
update = True
server.site = nb_dc.id
if rack and server.rack and server.rack.id != nb_rack.id:
logging.info('Rack location has changed from {} to {}, updating'.format(
server.rack,
nb_rack,
))
update = True
server.rack = nb_rack
if nb_rack is None:
server.face = None
server.position = None
return update, server
def get_rack(self):
rack = Rack()
return rack.get()
def get_netbox_rack(self):
rack = self.get_rack()
datacenter = self.get_netbox_datacenter()
if not rack:
return None
if rack and not datacenter:
logging.error("Can't get rack if no datacenter is configured or found")
sys.exit(1)
return nb.dcim.racks.get(
name=rack,
site_id=datacenter.id,
)
def get_product_name(self):
"""
Return the Chassis Name from dmidecode info
"""
return self.system[0]['Product Name'].strip()
def get_service_tag(self):
"""
Return the Service Tag from dmidecode info
"""
return self.system[0]['Serial Number'].strip()
def get_expansion_service_tag(self):
"""
Return the virtual Service Tag from dmidecode info host
with 'expansion'
"""
return self.system[0]['Serial Number'].strip() + " expansion"
def get_hostname(self):
if config.hostname_cmd is None:
return '{}'.format(socket.gethostname())
return subprocess.getoutput(config.hostname_cmd)
def is_blade(self):
raise NotImplementedError
def get_blade_slot(self):
raise NotImplementedError
def get_chassis(self):
raise NotImplementedError
def get_chassis_name(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 get_power_consumption(self):
raise NotImplementedError
def get_expansion_product(self):
raise NotImplementedError
def _netbox_create_chassis(self, datacenter, tenant, rack):
device_type = get_device_type(self.get_chassis())
device_role = get_device_role(config.device.chassis_role)
serial = self.get_chassis_service_tag()
logging.info('Creating chassis blade (serial: {serial})'.format(
serial=serial))
new_chassis = nb.dcim.devices.create(
name=self.get_chassis_name(),
device_type=device_type.id,
serial=serial,
device_role=device_role.id,
site=datacenter.id if datacenter else None,
tenant=tenant.id if tenant else None,
rack=rack.id if rack else None,
tags=[{'name': x} for x in self.tags],
)
return new_chassis
def _netbox_create_blade(self, chassis, datacenter, tenant, rack):
device_role = get_device_role(config.device.blade_role)
device_type = get_device_type(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,
tenant=tenant.id if tenant else None,
rack=rack.id if rack else None,
tags=[{'name': x} for x in self.tags],
)
return new_blade
def _netbox_create_blade_expansion(self, chassis, datacenter, tenant, rack):
device_role = get_device_role(config.device.blade_role)
device_type = get_device_type(self.get_expansion_product())
serial = self.get_expansion_service_tag()
hostname = self.get_hostname() + " expansion"
logging.info(
'Creating expansion (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,
tenant=tenant.id if tenant else None,
rack=rack.id if rack else None,
tags=[{'name': x} for x in self.tags],
)
return new_blade
def _netbox_create_server(self, datacenter, tenant, rack):
device_role = get_device_role(config.device.server_role)
device_type = get_device_type(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,
tenant=tenant.id if tenant else None,
rack=rack.id if rack else None,
tags=[{'name': x} for x in self.tags],
)
return new_server
def get_netbox_server(self):
return nb.dcim.devices.get(serial=self.get_service_tag())
def _netbox_set_or_update_blade_slot(self, server, chassis, datacenter):
# before everything check if right chassis
actual_device_bay = server.parent_device.device_bay if server.parent_device else None
actual_chassis = actual_device_bay.device if actual_device_bay else None
slot = self.get_blade_slot()
if actual_chassis and \
actual_chassis.serial == chassis.serial and \
actual_device_bay.name == slot:
return
real_device_bays = nb.dcim.device_bays.filter(
device_id=chassis.id,
name=slot,
)
if len(real_device_bays) > 0:
logging.info(
'Setting device ({serial}) new slot on {slot} '
'(Chassis {chassis_serial})..'.format(
serial=server.serial, slot=slot, chassis_serial=chassis.serial
))
# reset actual device bay if set
if actual_device_bay:
actual_device_bay.installed_device = None
actual_device_bay.save()
# setup new device bay
real_device_bay = real_device_bays[0]
real_device_bay.installed_device = server
real_device_bay.save()
else:
logging.error('Could not find slot {slot} for chassis'.format(
slot=slot
))
def _netbox_set_or_update_blade_expansion_slot(self, server, chassis, datacenter):
# before everything check if right chassis
actual_device_bay = server.parent_device.device_bay if server.parent_device else None
actual_chassis = actual_device_bay.device if actual_device_bay else None
slot = self.get_blade_expansion_slot()
if actual_chassis and \
actual_chassis.serial == chassis.serial and \
actual_device_bay.name == slot:
return
server.name += " expansion"
real_device_bays = nb.dcim.device_bays.filter(
device_id=chassis.id,
name=slot,
)
if len(real_device_bays) > 0:
logging.info(
'Setting device expansion ({serial}) new slot on {slot} '
'(Chassis {chassis_serial})..'.format(
serial=server.serial, slot=slot, chassis_serial=chassis.serial
))
# reset actual device bay if set
if actual_device_bay:
actual_device_bay.installed_device = None
actual_device_bay.save()
# setup new device bay
real_device_bay = real_device_bays[0]
real_device_bay.installed_device = server
real_device_bay.save()
else:
logging.error('Could not find slot {slot} expansion for chassis'.format(
slot=slot
))
def netbox_create_or_update(self, config):
"""
Netbox method to create or update info about our server/blade
Handle:
* new chassis for a blade
* new slot for a blade
* hostname update
* Network infos
* Inventory management
* PSU management
"""
datacenter = self.get_netbox_datacenter()
rack = self.get_netbox_rack()
tenant = self.get_netbox_tenant()
if self.is_blade():
chassis = nb.dcim.devices.get(
serial=self.get_chassis_service_tag()
)
# Chassis does not exist
if not chassis:
chassis = self._netbox_create_chassis(datacenter, tenant, rack)
server = nb.dcim.devices.get(serial=self.get_service_tag())
if not server:
server = self._netbox_create_blade(chassis, datacenter, tenant, rack)
# Set slot for blade
self._netbox_set_or_update_blade_slot(server, chassis, datacenter)
else:
server = nb.dcim.devices.get(serial=self.get_service_tag())
if not server:
server = self._netbox_create_server(datacenter, tenant, rack)
logging.debug('Updating Server...')
# check network cards
if config.register or config.update_all or config.update_network:
self.network = ServerNetwork(server=self)
self.network.create_or_update_netbox_network_cards()
# update inventory if feature is enabled
if config.inventory and (config.register or config.update_all or config.update_inventory):
self.inventory = Inventory(server=self)
self.inventory.create_or_update()
# update psu
if config.register or config.update_all or config.update_psu:
self.power = PowerSupply(server=self)
self.power.create_or_update_power_supply()
self.power.report_power_consumption()
if self.own_expansion_slot():
logging.debug('Update Server expansion...')
expansion = nb.dcim.devices.get(serial=self.get_expansion_service_tag())
if not expansion:
expansion = self._netbox_create_blade_expansion(chassis, datacenter, tenant, rack)
# set slot for blade expansion
self._netbox_set_or_update_blade_expansion_slot(expansion, chassis, datacenter)
update = 0
# for every other specs
# check hostname
if server.name != self.get_hostname():
update += 1
server.name = self.get_hostname()
if sorted(set([x.name for x in server.tags])) != sorted(set(self.tags)):
update += 1
if version.parse(self.netbox_version) > version.parse('2.8'):
server.tags = [x.id for x in self.nb_tags]
else:
server.tags = self.tags
if config.update_all or config.update_location:
ret, server = self.update_netbox_location(server)
update += ret
if update:
server.save()
logging.debug('Finished updating Server!')
def print_debug(self):
self.network = ServerNetwork(server=self)
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('Got expansion:', self.own_expansion_slot())
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