This script is designed to facilitate the initial setup of a newly instantiated AWS EC2 instance. It allows for a secure and swift transition from the default EC2 user setup by automating several setup tasks.

• User and Hostname Setup: Prompts for and sets up a new username and a desired hostname.
• SSH Key Configuration: Dynamically determines the current logged-in user to copy SSH key configurations to the new user.
• Sudo Permissions: Creates a new user and grants it sudo permissions without needing a password.
• Hostname Configuration: Allows setting up a custom hostname for the instance.
• Preserve Hostname Modification: Modifies /etc/cloud/cloud.cfg to set preserve_hostname.

1. Clone this Repository:

   git clone https://github.com/HezhaKh/ops345.git

2. Navigate to the Script Directory:

   cd /path/to/script/directory/

3. Make the Script Executable:

   chmod +x setup_aws.sh

4. Execute the Script with Sudo:

   sudo ./setup_aws.sh

5. Follow On-Screen Prompts:
   • Enter the desired username.
   • Enter the desired hostname.
   • Follow any additional prompts to complete the setup.

This script is purposed to:

• Verify root/sudo privileges.
• Gather inputs for new username, hostname, and sudoers filename.
• Set up a new user with sudo privileges without a password and with the correct permissions.
• Copy SSH key configurations from the current user to the new user.
• Apply the new hostname.
• Modify preserve_hostname in /etc/cloud/cloud.cfg.
• Provide a completion message with further instructions or actions.

Make sure to test the new user setup and configurations after the completion of the script and adjust as necessary.