# GitOps GitOps is a methodology for managing infrastructure and applications based on Git principles and containerization. The core idea is that all changes to infrastructure and application configuration are stored, managed, and synchronized through a Git version control system. ### Key Aspects of GitOps: 1. **Declarative Configuration**: - The entire system state (infrastructure, applications, configurations) is described using declarative configuration files (e.g., YAML for Kubernetes). 2. **Cloud-Native Management**: - Git serves as the single source of truth for configurations and infrastructure states. All changes and approvals are made via commits to the main Git branch. 3. **Automation and CI/CD**: - Automatic deployment (CI/CD) is used to automate the process of deploying, updating, and rolling back applications and infrastructure based on Git changes. 4. **Version Control and Auditing**: - Change history, audit logs, and version tracking in Git provide transparency and the ability to revert to previous system states. ### GitOps Benefits: - **Consistency and Security**: - Ensures consistency of state and configuration by using Git as the centralized management mechanism. - **Simplified Change Management**: - All infrastructure changes are code-based and go through automated CI/CD pipelines for validation and deployment. - **Transparency and Auditing**: - Git's change history allows easy tracking of who made changes and when, enhancing auditing and compliance with security policies. ### GitOps Implementation Example: 1. **Infrastructure as Code (IaC)**: - Use tools like Terraform or Ansible to describe and manage infrastructure as code, which is stored in Git. 2. **Continuous Deployment (CD)**: - Employ Jenkins, GitLab CI/CD, or Argo CD to automatically deploy applications and infrastructure based on Git changes. 3. **Configuration Management**: - Use Helm to manage application configurations in Kubernetes, ensuring synchronization with changes stored in Git.