# User Configuration

## Create a Non-Root User

As the `root` user, create a non-root user for deployments and add that user to the `sudo` group using the following commands:

```bash
useradd <USERNAME>
```

```bash
usermod -aG sudo <USERNAME>
```

The home directory for the non-root user is located at `/home/<USERNAME>`.

To later connect to the non-root user via SSH, you'll need to add your SSH key to the user. This can be done while logged in as the `root` user using the following command:

```bash
rsync -a --chown=<USERNAME>: ~/.ssh /home/<USERNAME>
```

If necessary, while logged in as the `root` user, you can switch to the non-root user using the following command:

```bash
su - <USERNAME>
```

You can switch back to the `root` user by typing `exit`.

{% hint style="info" %}
The rest of the commands in the **User Configuration** section should be run as the non-root user.
{% endhint %}

## Git

Configure Git using the following commands:

```bash
git config --global user.name "<NAME>"
```

```bash
git config --global user.email "<EMAIL>"
```

Create an SSH key for the non-root user in order to access GitHub, etc.:

```bash
ssh-keygen
```

As mentioned above, you can print out the non-root user's SSH key by using the following command:

```bash
cat ~/.ssh/id_rsa.pub
```

## Ruby and Bundler

Install Ruby 2.6.5 and Bundler using the following commands inside the non-root user's home directory:

```bash
git clone https://github.com/rbenv/rbenv.git ~/.rbenv
```

```bash
git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
```

```bash
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
```

```bash
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc
```

```bash
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
```

```bash
exec $SHELL
```

```bash
rbenv install 2.6.5
```

```bash
rbenv global 2.6.5
```

```bash
gem install bundler
```

```bash
rbenv rehash
```

You can check the current version of Ruby using the following command:

```bash
rbenv version
```

List all installed versions of Ruby:

```bash
rbenv versions
```

Change the version of Ruby:

```bash
rbenv global <VERSION>
```