What is the storage solution for GitLab on CentOS

Detailed explanation of the storage solution of GitLab on CentOS platform

Deploying GitLab on CentOS systems, its storage policy covers the following key aspects:

1. Code repository storage:

   • By default, the Omnibus GitLab installation package saves the repository data in the /var/opt/gitlab/git-data/repositories directory.
   • You can customize the path to the git-data directory by modifying the /etc/gitlab/gitlab.rb configuration file.

2. database:

   • GitLab's core database uses PostgreSQL, a high-performance, scalable relational database management system that ensures the stability and reliability of GitLab.
   • Before deploying GitLab, be sure to install and configure the PostgreSQL database.

3. Caching mechanism:

   • GitLab uses Redis database as a cache to improve data access speed and optimize system performance.

4. Other data storage:

   • GitLab uses Elasticsearch for full-text search, which facilitates and quickly retrieves code and questions.
   • The Prometheus monitoring system is responsible for collecting and analyzing GitLab's performance metrics and logs to ensure that the system is in good condition.

5. Backup and Restore:

   • GitLab provides gitlab-rake command line tool for data backup and recovery operations. For example, create a backup using gitlab-rake gitlab:backup:create .
   • Backup files are usually stored in the /var/opt/gitlab/backups directory.

6. Storage path modification:

   • If you need to change the GitLab data storage location, please stop the GitLab service first, copy the existing data to the new location, modify the git_data_dir parameter in the /etc/gitlab/gitlab.rb configuration file, adjust the file permissions, and finally restart the GitLab service.

By reasonably configuring the above storage solution, GitLab's efficient and secure data storage and management can be realized on CentOS system.

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