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EnterpriseCloudDevOps

GitOps migration to AWS EKS with Argo CD

Migrated legacy deployment workflows to a GitOps model on AWS EKS using Argo CD — every change auditable, every rollback one commit away.

Hours→Mins

Deploy time

100%

GitOps coverage

0

Downtime cutover

Project overview

The client operated a legacy on-premises Kubernetes environment with outdated CI/CD processes based on Jenkins. The setup lacked modern practices like GitOps, making it harder to maintain and scale infrastructure.

Challenges

  • Scalability and maintainability of infrastructure
  • Manual deployment processes and lack of visibility
  • Difficulty onboarding new teams into the development pipeline

Our approach

Unified Techs led a full-scale migration to AWS, delivering a GitOps-driven, cloud-native DevOps architecture built around AWS EKS, Terraform, GitHub Actions, and Argo CD.

Infrastructure as Code with Terraform

  • Provisioned VPC networking, EKS clusters and managed node groups
  • Defined IAM roles, policies, logging and monitoring integrations
  • Built modular, reusable Terraform code for consistency across environments

CI/CD modernization

  • Replaced monolithic Jenkins pipelines with GitHub Actions
  • Matrix-based test automation and Dockerized build workflows with caching
  • Integrated code quality checks and artifact publishing

GitOps with Argo CD & Helm

  • Refactored applications into Helm charts
  • Argo CD auto-syncs changes from Git repositories to EKS
  • Versioned deployments across dev, staging and production with RBAC

Outcomes

  • Reduced deployment time from hours to minutes
  • GitOps workflows enabled clear, auditable release processes
  • Improved infrastructure scalability and reusability with Terraform
  • Enhanced developer velocity with simplified CI/CD pipelines
  • Zero-downtime cutover for critical production services

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