Date: 2017feb4
OS: Linux
Distro: RedHat/Fedora/CentOS
Product: letsencrypt
Q. Attempting to renew cert from /etc/letsencrypt/renewal/[domain].conf produced an unexpected error: The requested apache plugin does not appear to be installed. Skipping.
A. I fixed the problem by doing:
dnf install python2-certbot-apache
Then:
letsencrypt renew