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How a GitOps Pipeline Connects GitHub Actions, Argo CD, and Amazon EKS

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A developer deployed vProfile, a multi-tier Java application, to Amazon EKS using a GitOps workflow that separates CI and CD responsibilities. GitHub Actions handles building, testing, and SonarQube quality checks on pull requests, while Argo CD is solely responsible for syncing the desired state from Git to the Kubernetes cluster. Every container image is tagged with a Git commit SHA, creating a traceable link between source code, the image in Amazon ECR, and the running workload. Infrastructure including the VPC, EKS cluster, and IAM roles is provisioned using Terraform, with Helm packaging the Kubernetes resources. The setup demonstrates how narrow tool responsibilities and a clean CI/CD boundary can improve deployment traceability, rollback capability, and cluster security.

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