Tried unsuccessfully using the auto-renew instructions here:
(https://onepagezen.com/letsencrypt-auto-renew-certbot-apache)
[ec2-user@ip-172-31-45-58 html]$ sudo -i
[root@ip-172-31-45-58 ~]# cd /etc/letsencrypt/ && ./certbot-auto renew --dry-run && /etc/init.d/apache2 restart
Skipping bootstrap because certbot-auto is deprecated on this system.
./certbot-auto has insecure permissions!
To learn how to fix them, visit Certbot-auto deployment best practices
Your system is not supported by certbot-auto anymore.
Certbot cannot be installed.
Please visit https://certbot.eff.org/ to check for other alternatives.