Automating configuration backup

In this example, we will use PyGithub to back up a directory containing our router configurations. We have seen how we can retrieve the information from our devices with Python or Ansible; we can now check them into GitHub.

We have a subdirectory, named config, with our router configs in text format:

$ ls configs/ 
iosv-1 iosv-2

$ cat configs/iosv-1 
Building configuration...

Current configuration : 4573 bytes
!
! Last configuration change at 02:50:05 UTC Sat Jun 2 2018 by cisco
!
version 15.6
service timestamps debug datetime msec
...

We can use the following script, Chapter13_1.py, to retrieve the latest index from our GitHub repository, build the content that we need to commit, and automatically commit the configuration:

#!/usr/bin/env python3
# reference: https://stackoverflow.com/questions/38594717/how-do-i-push-new-files-to-github

from github import Github, InputGitTreeElement...