How to update the site?

Question

Software Deployment

In general, guys, I have no experience in this matter, but I need to learn.
The task is that every 3 days you have to update some site files.
there are about 30 servers on different Linux OS
how the update happens:
1. go to the server1,
2. end the java session,
3. remove the backup files,
4. update the files,
5. run java on behalf of another user,
6. end the session.
and so all 30 servers,
servers are not clustered, on each server different files are updated
how to organize all this correctly?

Answer 1

Look at this thing spacewalk.redhat.com/. She can do everything you said and more.
Especially since you have 30 servers.

Answer 2

You need a deployment system, not a server configuration management system. some kind of jenkins or any of its analogues. Ansible is not needed here