How to mount /home/<my_user>/.ssh folder in devcontainer

Question

I would like git to access to my .ssh folder with the keys while working inside devcontainer, I thought to use runArgs to mount /home/<my_user>/.ssh folder like this:

"runArgs": [
        "-v", "/home/<my_user>/.ssh:/home/.ssh:ro"
    ],

but I'm not sure how to get my user folder in the host machine of the devcontainer