Practical Network Automation - Second Edition

Second use case

Consider the second scenario as follows:

As an admin, you need to provide a script to users to add/delete themselves based upon authentication status and if authenticated successfully, provide an option to change their passwords:

...import getpass import base64import os.path###Check with credential storage file exists. If not, then create one, otherwise read data from the current filestoredcreds=[]if (os.path.isfile("usecase_creds.txt")):    fopen=open("usecase_creds.txt")    storedcreds=fopen.readlines()else:    fopen=open("usecase_creds.txt","w")###Decrypt a given set of credentials def decryptcredential(pwd):    rvalue=base64.b64decode(pwd)    rvalue=rvalue.decode()    return rvalue###Encrypt a given set of credentialsdef encryptcredential(pwd): ...