How to properly organize the CI process?

Question

Continuous Integration

I plan to organize the process as follows:
1. Push the code to the GitLab repository.
2. Virtual machine on Azure with deployed TeamCity. We receive changes, we assemble packages, build, tests.
3. Deploy to another virtual machine where Staging will be.
4. After checking for Staging, deploy to production.
Everything seems to be logical, but it confuses the need to deploy two additional virtual machines. Is it possible to simply deploy to another folder on the same virtual machine and set it up in IIS as a separate site?

Answer 1

If Staging does not affect Prod, then why not? although this is not best practice.