Location of git and its config on the webserver?

Question

git

I set up git on the server for auto-deploy, the structure is like this

domain.ru
 - ssh
    - id_rsa
    - id_rsa.pub
    - config
    - known_hosts
 - git
 - app
 - public_html

The server looks in public_html i.e. there is only index.php and all the working files of the project above www in the app there is a git folder and ssh with settings and keys.
Question 1: the path to the key is specified in the config: IdentityFile ssh/id_rsa is wrong, should I either raise the config level, or write IdentityFile id_rsa?
Question 2: if you go to the git folder and write, git config --listthen the console is silent. Git does not see this config at all, how can I specify the path to it?
Question 3: if you create a turnip in the git folder, for example git init, a local config will be created there that overrides the global one, so can all the settings be entered into it already?

Answer 1

I think you need to start with the fact that the folder should be called .ssh(dot at the beginning of the name).
Well, .gitsimilarly.