How to create SSH key and use for GitLab?

SSH is a preferred way to use Git as compared to HTTP.

SSH key is generated as pair. A public key that is stored on your machine and a private key that is saved in git-based servers such as GitLab or GitHub.

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Steps to create & use SSH Key for GitLab:

1. Open a terminal on Linux or macOS. Similarly, use command prompts on Windows.
2. Generate a new ED25519 SSH key pair with command: ssh-keygen -t ed25519 -C "username@mail.com" or Generate RSA: ssh-keygen -t rsa -b 4096 -C "username@mail.com"
3. Next, you can simply input a file path to save your SSH key pair or just press Enter
4. Then, you will be asked to set a “passphrase”. This will be used once you use git commands first time after SSH setup.

How to add an SSH key (that generated above) to your GitLab account:

1. Get & Copy public SSH key to the clipboard by using following command:
   macOS command: pbcopy < ~/.ssh/id_ed25519.pub
   Linux command: xclip -sel clip < ~/.ssh/id_ed25519.pub
   Linux command: cat ~/.ssh/id_ed25519.pub | clip
2. Add your public SSH key to your GitLab account by:
   Go to Settings > SSH Key > and press Add key
   Now, you should be able to interact (clone, pull, push, etc) with git from the local machine without username and password.

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