pythonで複数機器からconfig収集

機器一覧テキストを読み込んで、順次、コマンドを実行。結果をテキストで保存する。

logフォルダは予め作成しておく。

get-log.py
host_list.txt
log

取得されたファイル

log
 internet-rtr01_20230219-0118-12.log
 dist-rtr01_20230219-0118-21.log
 dist-rtr02_20230219-0118-28.log

host_list.txt
get-log.py
実行結果
取得ファイル（dist-rtr01_20230219-0118-21.log）

host_list.txt

#host or IP,username,password,device type
10.10.20.181,cisco,cisco,autodetect
10.10.20.175,cisco,cisco,cisco_ios_telnet
10.10.20.176,cisco,cisco,cisco_ios_telnet

get-log.py

import re
import os
from netmiko import ConnectHandler
 
currentdir = os.path.dirname(os.path.abspath(__file__))
filepath = os.path.join(currentdir,'host_list.txt')
#print(filepath)
with open(filepath) as f:
    #1行ずつ読み込む
    input_data = f.read().splitlines()

for rows in input_data:
    #テキストの#行は読まない
    if not re.match('#', rows):
        row = rows.split(',')
        HOST = row[0]
        USERNAME = row[1]
        PASSWORD = row[2]
        DEVICETYPE = row[3]
#        print(host, username,password)
        # 接続パラメータを設定 device_typeを autodetect とする
        remote_device = {'device_type': DEVICETYPE,
                         'host': HOST,
                         'username': USERNAME,
                         'password': PASSWORD,
                         }
        print('Connecting to ' + HOST)
        remote_host = ConnectHandler(**remote_device)

        print('Entering enable mode ...')
        remote_host.enable()

        output = remote_host.send_command('show run')
        prompt = remote_host.find_prompt()
        hostname = prompt[:-1]

        read_buf = output.split('\n')
        read_buf = read_buf[3:]
        config = '\n'.join(read_buf)

        import datetime
        #取得した日のタイムスタンプ
        now = datetime.datetime.now()
        today = now.strftime('%Y%m%d-%H%M-%S')
        output_file = hostname + '_' + today + '.log'
        output_file = os.path.join(currentdir,'log',output_file)


        with open(output_file , 'w') as backup:
            backup.write(config)
            print('Backup of ' + hostname + ' completed successfully')
            print('#' * 30)

        remote_host.disconnect()

実行結果

Connecting to 10.10.20.181
Entering enable mode ...
Backup of internet-rtr01 completed successfully
##############################
Connecting to 10.10.20.175
Entering enable mode ...
Backup of dist-rtr01 completed successfully
##############################
Connecting to 10.10.20.176
Entering enable mode ...
Backup of dist-rtr02 completed successfully
##############################
PS C:\winpython>

取得ファイル（dist-rtr01_20230219-0118-21.log）

!
! Last configuration change at 16:15:15 UTC Sat Feb 18 2023
!
version 17.3
service timestamps debug datetime msec
service timestamps log datetime msec
service call-home
platform qfp utilization monitor load 80
no platform punt-keepalive disable-kernel-core
platform console serial
!
hostname dist-rtr01
!
boot-start-marker
boot-end-marker
!
～～　省略　～～

!
line con 0
 exec-timeout 0 0
 password cisco
 stopbits 1
line vty 0 4
 exec-timeout 720 0
 password cisco
 login local
 transport input telnet ssh
!
restconf
end

他ファイルは同様なので省略。