# Deployment Git with a VPS

Git is a powerful version control system that allows developers to efficiently manage their code repositories and collaborate seamlessly with team members. In this step-by-step guide, we will walk you through the process of setting up and using Git in your VPS server in an easy and beginner-friendly way.

## **Installing and configuring git**

1. **Connect to Your VPS Server First**, log in to your VPS server using SSH.
    
    ```python
    ssh your_username@your_server_ip
    ```
    
2. **Install Git:** Most VPS servers come with Git pre-installed, but it's always good to verify. To install Git, use the package manager specific to your server's operating system.
    
    ```bash
    # on Ubuntu/Debian
    sudo apt-get update
    sudo apt-get install git
    
    #On CentOS/RHEL
    sudo yum install git
    ```
    
3. **Configure Git:**
    
    Before you start using Git, you need to configure your identity. Replace the placeholders with your own name and email address:
    
    ```bash
    git config --global user.name "Your Name"
    git config --global user.email "youremail@example.com"
    ```
    
4. **Check your configuration**
    
    ```bash
    git config --list
    ```
    
    The **git config –list** command should return the configuration you added
    
    ```bash
    user.name=YourUserName
    user.email=example@example.com
    ```
    

## Using Git Basic Command

1. Create the Project Directory: First, create a directory for your project. You can do this using the `mkdir` command:
    
    ```bash
    mkdir project
    ```
    

1. Create Files for the Project: Navigate into the `project1` directory and create some files and a sub-directory:
    
    ```bash
    $ cd project
    $ touch file
    ```
    

1. Initialize Git in the Project Directory: Next, you need to initialize a Git repository in the `project1` directory using the `git init` command:
    
    ```bash
    git init
    ```
    

This command initializes an empty Git repository in the `project` directory, allowing Git to track changes in the files.

1. Add Files to the Repository:
    
    ```bash
     git add .
    ```
    

1. Make Your Initial Commit: After adding the files, it's time to make your initial commit. A commit is a snapshot of the changes you've made to the project. Each commit should have a meaningful commit message describing the changes.
    
    ```bash
    git commit -m "Initial Commit"
    ```
    
    The `-m` flag allows you to specify the commit message directly in the command. In this case, we use "Initial Commit" to indicate that this is the first commit for the project.
    

## Adding SSH access to GitHub from your VPS

1. **Check if you already have an SSH key pair by running:**
    
    ```python
    ls -al ~/.ssh
    ```
    
2. **Generate SSH Key Pair on VPS:** Log in to your VPS via SSH, open a terminal, and run the following command to generate an SSH key pair:
    
    ```python
    ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
    ```
    
3. **View and Copy Public Key:** After generating the keys, run the following command to display your public key:
    
    ```python
    cat ~/.ssh/id_rsa.pub
    ```
    
    Copy the entire output of the command, which is your public key.
    
4. **Add Public Key to GitHub:**
    
    1. Click on your profile picture in the upper right
        
    2. Select **settings**
        
    3. Click on **SSH and GPG keys**
        
    4. Click on the **“Create SSH Key” button**
        
    5. Give the key a **“title”** to help you identify it
        
    6. Paste the public key into the **“key” field**
        
    7. Save the **key**
        
5. **Test SSH Connection:** To test if your SSH connection is working, run the following command in the terminal of your VPS:
    
    ```python
    ssh -T git@github.com
    ```
    
    You should see a message like "Hi username! You've successfully authenticated, but GitHub does not provide shell access."
    
6. **Update Git Configuration:** To ensure Git uses SSH for pushing and pulling from GitHub, configure it to use the SSH URL. Run the following commands in your VPS terminal:
    
    ```python
    git config --global user.email "your_email@example.com"
    git config --global user.name "Your Name"
    git remote remote add origin git@github.com:your-username/your-repo.git
    ```
    

Now, your VPS should be set up to use SSH for interacting with your GitHub repository. Now , you can **clone, push, and pull** from GitHub using SSH without needing to enter your username and password each time.