I’ve an automatic building service which download from a git private repository.
The problem is that when it tries to clone repository it need to provide the password, because it is not remembered; so because there is no human interaction, it waits forever the password.
How can I force it to remember from id_rsa.pub?

For Windows users, just a note that this is how I set up the Git Bash environment to log me in once when I start it up. I edit my ~/.bashrc file:

So when I start Git Bash, it looks like:

And now I can ssh to other servers without logging in every time.