facts.py

import re
import xmltodict


def get_version_from_show(show_version_output):

    re_nxos_version_pattern = r"NXOS: version (.*)"
    nxos_version_match = re.search(re_nxos_version_pattern, show_version_output)

    if nxos_version_match:
        return nxos_version_match.group(1)
    else:
        return None


def get_uptime_from_show(show_uptime_output):

    uptime_lines = show_uptime_output.splitlines()
    for line in uptime_lines:
        if "System uptime:" in line:
            uptime_parts = line.split()
            days = int(uptime_parts[2])
            hours = int(uptime_parts[4])
            minutes = int(uptime_parts[6])
            seconds = int(uptime_parts[8])
            return days*86400 + hours*3600 + minutes*60 + seconds


def get_facts_netmiko(connection):

    show_hostname_output = connection.send_command("show hostname")
    show_version_output = connection.send_command("show version")
    show_serial_output = connection.send_command("show license host-id")
    show_uptime_output = connection.send_command("show system uptime")

    facts = dict()
    facts["os_version"] = get_version_from_show(show_version_output)
    facts["hostname"] = show_hostname_output.strip()
    facts["serial_number"] = show_serial_output.strip()[20:]  # Don't do this :-)
    facts["uptime"] = get_uptime_from_show(show_uptime_output)

    return facts


def get_facts_napalm(connection):

    return connection.get_facts()


def get_facts_ncclient(connection):

    facts = dict()

    serial_number_xml_nxos = '<System xmlns="http://cisco.com/ns/yang/cisco-nx-os-device"><serial/></System>'
    rsp = connection.get(("subtree", serial_number_xml_nxos))
    serial_xml = xmltodict.parse(rsp.data_xml, dict_constructor=dict)

    facts["serial_number"] = serial_xml["data"]["System"]["serial"]

    return facts