RedHat Enterprise Linux and clones
RHEL and CentOS documentation
There is some relevant documentation:
RHEL7 documentation including Release Notes.
Mirror list at https://mirrors.almalinux.org/
To switch from CentOS 8 to Alma:ref:Linux use the EL to AlmaLinux migration tool in https://github.com/AlmaLinux/almalinux-deploy.
The Rocky:ref:Linux has a download page and a FAQ.
Ansible 2.9.20 does not have Rocky:ref:Linux in the hostname module file /usr/lib/python3.6/site-packages/ansible/modules/system/hostname.py. Updates have been committed to Ansible 2.9+ in PRs https://github.com/ansible/ansible/pull/74545 and https://github.com/ansible/ansible/issues/74565
CentOS Stream documentation
Information about CentOS Stream:
Converting from CentOS Linux to CentOS Stream:
$ dnf swap centos-linux-repos centos-stream-repos $ dnf distro-sync
CentOS 8 (and the clones) has a new concept AppStream:
Content in the AppStream repository includes additional user space applications, runtime languages, and databases in support of the varied workloads and use cases. Content in AppStream is available in one of two formats - the familiar RPM format and an extension to the RPM format called modules.
Installing CentOS 8 content including module streams.