Create Rocky Linux 9 repo mirror

createrepo.sh

#!/usr/bin/env bash

dnf install -y rsync createrepo yum-utils
yum install epel-release -y
mkdir -p /var/www/html/rocky-9-mirror

reposync -gpgcheck -n -d 1 -m \
--repoid=appstream \
--repoid=baseos \
--repoid=epel \
--repoid=epel-cisco-openh264 \
--repoid=extras \
--newest-only \
--download-path=/var/www/html/rocky-9-mirror

# Now you can serve the repos at /var/www/html/rocky-9-mirror/{appstream,baseos,epel,epe-cisco-openh264,extras}

# References:
# * reposync --help
# * https://github.com/piwi3910/docker-reposync