GitOps and Argo CD

Why Argo CD

Argo CD represents a significant leap in the domain of DevOps, particularly in the adoption of GitOps principles.

Argo CD is a part of the Argo project and a CNCF Graduated project.

Pull vs. Push

Enhanced Security and Autonomy:
- Pull model enhances security by reducing attack vectors.
- Allows for cluster autonomy by applying changes internally.
Self-Management and Consistency:
- Clusters are self-managed, updating without external dependencies.
- Ensures a consistent state with the repository.
Resilience and Reduced Credential Exposure:
- Pull systems are resilient, not relying on external services.
- Minimizes credential exposure outside the cluster.
Scalability and Dynamic Updates:
- Better scalability by offloading work to individual clusters.
- Supports event-driven, dynamic updates.
Operational Efficiency:
- Reduces overhead on CI systems, with the cluster managing deployment work.
- Leads to lower operational complexity.

Robust Security and Automated Synchronization:
- Utilizes Git's security features for safe deployments.
- Automatically syncs states as defined in Git.
Ease of Operations:
- Facilitates easy rollbacks.
- Encourages declarative infrastructure setup.
- Simplifies complex deployments.
Cost-Effective and Community-Driven:
- Open-source nature allows free usage and community contributions.
Real-Time Oversight and Multi-Cluster Management:
- Offers real-time application status monitoring.
- Manages deployments across multiple clusters.
Self-Healing and Community Support:
- Automatically corrects state drifts.
- Benefits from the support and innovation of the GitOps community.