How to search non expired certs list and grep a particular common name in the list

Is it possible to use the iControl Rest API? You could send a GET to...

https://your.f5.com/mgmt/tm/sys/file/ssl-cert?$select=name,subject,expirationString

...and search through those results.

Is Python an option? This would do the trick...

import requests
from datetime import datetime as dt
from requests.auth import HTTPBasicAuth
import urllib3
 
urllib3.disable_warnings()
 
# Certificate Rest API endpoint
bigip = 'https://your.f5.com/mgmt/tm/sys/file/ssl-cert'
 
# Selectors to get name, subject, and expiration date
querystring = {"$select": "name,subject,expirationString"}
 
headers = {'Content-Type': "application/json"}
 
response = requests.request('GET',
                            bigip,
                            params=querystring,
                            headers=headers,
                            auth=HTTPBasicAuth('un', 'pw'),
                            verify=False)
 
currentdt = dt.now()
for cert in response.json()['items']:
    certname = cert['name']
    certsubj = cert['subject']
    certexpdt = cert['expirationString']
 
    # Need to convert the expiration date to datetime object
    expdt = dt.strptime(certexpdt, '%b %d %H:%M:%S %Y %Z')
 
    if currentdt <= expdt and 'my_cn' in certsubj:
        print("NAME: %s" % certname)
        print("SUBJECT: %s" % certsubj)
        print("EXPIRATION: %s\n" % certexpdt)