Simple Python script to slice Cisco config and export via SSH to another device

Features

• Script is useful for device config migration / replication

Assumptions

• Place a copy of "show running" text file in the src_cfg folder
• Update environment.env file with your device ip & credentials
• Update trunks.py file to indiciate which sections of the source runconfig will be extracted
• Sample trunks.py file includes Cisco 9800 Wireless Lan Controller "configlets": "Wireless Policy Tag", "Wireless Site Tag", "Flex Profile", "Static AP MAC address mappings"
• This script is useful when you have to replicate a large operational WLC configuration to N+1 controller

Sample Cisco 9800 WLC config extraction

TRUNKS =  [
			'wireless tag policy',
			'wireless tag site',
			'wireless profile flex',
			'ap\s+([a-z0-9]{4}.[a-z0-9]{4}.[a-z0-9]{4})'
			]

Operation

With the above configuration, the script is expected to execute as following:

• in the source running configuration, extract all 'sections' of the runconfig that begin with 'wireless tag policy'
• replicate the extracted sections of the config above to the target ip address of the device defined under environment.env
• repeat the above for each of the subsequent config section definitions in the ordered TRUNKS list

Requirements

• ciscoconfparse
• netmiko

Installation

pip3 install -r requirements.txt

References

• http://www.pennington.net/py/ciscoconfparse/index.html
• https://pynet.twb-tech.com/blog/automation/netmiko.html