yavdr-ansible/library/hardware_facts.py

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#!/usr/bin/env python
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# This Module collects the vendor- and device ids for USB- and PCI(e)-devices and currently loaded kernel modules.
DOCUMENTATION = '''
---
module: hardware_facts
short_description: collects facts for kernel modules, usb and pci devices
description:
- This Module collects the vendor- and device ids for USB- and PCI(e)-devices and
currently loaded kernel modules.
options:
usb:
required: False
default: True
description:
- return a list of vendor- and device ids for usb devices in '04x:04x' notation
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pci:
required: False
default: True
description:
- return a list of vendor- and device ids for pci devices in '04x:04x' notation
modules:
required: False
default: True
description:
- return a list of currently loaded kernel modules
gpus:
required: False
default: True
description:
- return a list of devices of the pci gpu class (0x030000)
acpi_power_modes:
required: False
default: True
description:
- return a list of supported acpi power saving modes
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notes:
- requres python-pyusb and python-kmodpy
requirements: [ ]
author: "Alexander Grothe <seahawk1986@gmx.de>"
'''
EXAMPLES = '''
- name: get information about usb and pci hardware and loaded kernel modules
hardware_facts:
usb: True
pci: True
modules: True
acpi_power_modes: True
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- debug:
var: usb
- debug:
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var: pci
- debug:
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var: modules
- debug:
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var: gpus
'''
import glob
import json
import os
import sys
import usb.core
from collections import namedtuple
from itertools import chain
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import kmodpy
from ansible.module_utils.basic import *
PCIDevice = namedtuple("PCIDevice", 'idVendor idProduct idClass pciPath')
vendor_dict = {
0x10de: 'nvidia',
0x8086: 'intel',
0x1002: 'amd',
0x80ee: 'virtualbox',
}
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def get_pci_devices():
for device in chain(glob.glob('/sys/devices/pci*/*:*:*/'), glob.glob('/sys/devices/pci*/*:*:*/*:*:*/')):
try:
with open(os.path.join(device, 'device')) as d:
product_id = int(d.read().strip(), 16)
with open(os.path.join(device, 'vendor')) as d:
vendor_id = int(d.read().strip(), 16)
with open(os.path.join(device, 'class')) as d:
class_id = int(d.read().strip(), 16)
yield PCIDevice(idVendor=vendor_id, idProduct=product_id, idClass=class_id, pciPath=device)
except IOError:
pass
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def format_device_list(iterator):
return ["{:04x}:{:04x}".format(d.idVendor, d.idProduct) for d in iterator]
def format_gpu_device_list(iterator):
def get_entries(iterator):
for d in iterator:
if d.idClass == 0x030000:
yield {"VendorName": vendor_dict.get(d.idVendor, "unknown"),
"VendorID": d.idVendor, "ProductID": d.idProduct}
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return [entry for entry in get_entries(iterator)]
def list_acpi_power_modes():
acpi_power_modes = []
try:
with open('/sys/power/state') as f:
acpi_power_modes = [l for l in f.readline().split()]
except IOError:
pass
return acpi_power_modes
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arg_specs = {
'usb': dict(default=True, type='bool', required=False),
'pci': dict(default=True, type='bool', required=False),
'modules': dict(default=True, type='bool', required=False),
'gpus': dict(default=True, type='bool', required=False),
'acpi_power_modes': dict(default=True, type='bool', required=False),
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}
def main():
module = AnsibleModule(argument_spec=arg_specs, supports_check_mode=True,)
collect_usb = module.params['usb']
collect_pci = module.params['pci']
collect_modules = module.params['modules']
collect_gpus = module.params['gpus']
collect_acpi_power_modes = module.params['acpi_power_modes']
usb_devices = []
pci_devices = []
modules = []
gpus = []
nvidia_detected = False
intel_detected = False
amd_detected = False
virtualbox_detected = False
acpi_power_modes = []
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if collect_usb:
usb_devices = format_device_list(usb.core.find(find_all=True))
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if collect_pci:
pci_devices = format_device_list(get_pci_devices())
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if collect_modules:
k = kmodpy.Kmod()
modules = [m[0] for m in k.loaded()]
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if collect_gpus:
gpus = format_gpu_device_list(get_pci_devices())
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nvidia_detected = any((True for gpu in gpus if gpu['VendorName'] == 'nvidia'))
intel_detected = any((True for gpu in gpus if gpu['VendorName'] == 'intel'))
amd_detected = any((True for gpu in gpus if gpu['VendorName'] == 'amd'))
virtualbox_detected = any((True for gpu in gpus if gpu['VendorName'] == 'virtualbox'))
if collect_acpi_power_modes:
acpi_power_modes = list_acpi_power_modes()
data = {'usb': usb_devices, 'pci': pci_devices, 'modules': modules, 'gpus': gpus,
'acpi_power_modes': acpi_power_modes, 'nvidia_detected': nvidia_detected,
'intel_detected': intel_detected, 'amd_detected': amd_detected,
'virtualbox_detected': virtualbox_detected}
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module.exit_json(changed=False, ansible_facts=data, msg=data)
if __name__ == '__main__':
main()