What's trending for server management?

Question

Software Deployment

Colleagues, tell me what is now in vogue for centralized server management?
Interested in centralized configuration management (puppet?), package installation (yum), service management (init.d). Debian + CentOS. And, of course, it's all in the GUI.
Now the alignment is this - 90% of the machines in openvz, the rest are host machines. Virtual machines are created manually in Proxmox, then the necessary packages are rolled by hand and configs are configured. For example, it takes half a day to set up a web server (nginx, ssl, proxy, etc). Virtualmin is used to manage regular hosting suites.
Number of cars - up to 100.

Answer 1

in trend ansible