Some repositories will be needed later to install Flight tools.
On all nodes do:
dnf install -y epel-release
-yis an option for the install command that answers yes to install confirmation messages.
Once this command has been run on every node, the cluster is ready for the next step.
If all was successful, the added repositories will appear when running the command
dnf repolist on every node. E.g. on head node:
[root@chead1 ~]# dnf repolist repo id repo name appstream CentOS Stream 8 - AppStream baseos CentOS Stream 8 - BaseOS epel Extra Packages for Enterprise Linux 8 - x86_64 epel-modular Extra Packages for Enterprise Linux Modular 8 - x86_64 extras CentOS Stream 8 - Extras