ArgoCD Migration

Overview

Led the migration of over 100 applications from traditional Helm-based deployment workflows to a fully GitOps-driven approach using ArgoCD. This transformation reduced average release time by approximately 80% and dramatically improved deployment reliability.

Problem

The existing deployment process relied on manual Helm commands or CI-triggered deployments that were slow, error-prone, and difficult to audit. Rollbacks required manual intervention, and there was no single source of truth for what was running in production.

Solution

• Designed a GitOps repository structure with environment-specific overlays using Helm values files
• Configured ArgoCD Application resources with automated sync policies and health checks
• Implemented a progressive rollout strategy — migrating applications in batches to minimize risk
• Built self-service templates so teams could onboard their applications to ArgoCD independently
• Created monitoring dashboards to track sync status, drift detection, and deployment frequency

Impact

• Release time reduced from ~45 minutes to under 10 minutes on average
• Deployment frequency increased by 3x across the organization
• Failed deployments decreased significantly due to automated drift detection and rollback
• Git became the single source of truth for all application configurations

Technical Details

• GitOps Tool: ArgoCD
• Package Manager: Helm
• CI: GitHub Actions
• Orchestration: Kubernetes