This Bash script is designed to facilitate the reinstallation of GitLab Community Edition (CE) to a specified version while preserving important data and configurations. It is a step-by-step guide to ensure a smooth GitLab reinstallation process.

Before running the script, ensure the following prerequisites are met:

• Linux Environment: The script is intended for use on a Linux-based operating system, particularly systems using apt-get for package management.

• GitLab Version: You should specify the desired version of GitLab CE that you want to install. The variable gitlab_version in the script should be set to the desired version.

• Backup Location: Set the backup_location variable to specify where you want to store your GitLab data backups. Ensure you have enough storage space in this location.

Follow these steps to use the script:

1. Clone the Repository: Start by cloning the repository containing the script to your server (if you decided to fork it).

   git clone https://github.com/your-username/your-repo.git

   • Alternatively, you can download it here:

      https://github.com/APoniatowski/gitlab-reinstaller
     

2. Navigate to the Directory: Change your working directory to the cloned repository.

cd your-repo

3. Edit the Script: Open the script file (gitlab-reinstaller.sh) using a text editor and configure the variables at the top of the script:

• gitlab_version: Set it to the GitLab CE version you want to install. You can find the desired version on the GitLab website or in the official GitLab CE repository.

• backup_location: Specify the directory where GitLab data backups will be stored. Ensure that this directory exists and is writable.

For example, open the script in a text editor using the nano editor:

nano gitlab-reinstaller.sh

4. Locate the variables section at the top of the script and modify them according to your preferences:

# Specify the GitLab version to install
gitlab_version="16.1.2-ce.0"

# Backup location
backup_location="/root/backups"

5. Save your changes and exit the text editor.

6. Make the Script Executable: Ensure the script has executable permissions to allow it to be run:

chmod +x gitlab-reinstaller.sh

7. Run the Script: Execute the script with superuser privileges (e.g., sudo) to perform the GitLab reinstallation:

sudo ./gitlab-reinstaller.sh

Follow the On-screen Instructions: The script will guide you through the reinstallation process, including stopping GitLab services, backing up data, uninstalling the existing GitLab CE, installing the specified version, reconfiguring GitLab, starting services, and restoring data and configuration files.

During the execution of the script, you may be prompted to confirm certain actions, such as stopping services or overwriting configuration files. Please review and confirm these actions as needed by following the on-screen prompts.

Completion: After the script finishes, you'll receive a message indicating that GitLab has been reinstalled to the specified version, and the data has been restored.

• Backup Data: Regularly back up your GitLab data to prevent data loss during the reinstallation process.

• Use with Caution: Be cautious, especially when removing GitLab files and directories. Ensure you have recent backups.

• Testing: It's advisable to test the script in a non-production environment before using it in a production environment.

• GitLab CE Version: Ensure that the specified gitlab_version is a valid GitLab CE version available in the official GitLab repositories.

This script is provided under the MIT License. You are free to use, modify, and distribute it as needed.

If you encounter issues or have suggestions for improvements, please feel free to open an issue or submit a pull request on the GitHub repository.