deploying a local mirror
 

we are a data center that hosting different version of Centos releases for customers. Due to we install many packages regularly, we seriously need to install packages from a server during the installation process. We don’t want to become a public mirror, we just want to be a mirror in our data center locally.
We need a solution. when we want to install a fresh centos, how can we redirect it to our local mirror automatically?

That depends on how you install a fresh Centos.

When you install manually from a DVD, Centos 7 and 8 have an installation source option. Well, that's manual, not automatic, but then your installation is manual anyway.

When you use kickstart, set the installation source in the kickstart file. I don't remember the correct directive.

For more information, read the RHEL installation guide (the link documents RHEL 7, but I am sure RHEL/Centos 8 works almost the same).

thank you for your response