CI/CD pipeline re-engineering

Architecture overview

A fully automated CI/CD pipeline built on Azure DevOps with GitOps principles. Infrastructure and application code follow the same review and deployment process.

Pipeline stages

Build — Source compilation, dependency resolution, unit tests with coverage gates. Runs on every push to any branch.

Test — Integration tests against ephemeral test environments. Static analysis via SonarQube. Container image build and vulnerability scan.

Staging deploy — Terraform plan + apply for infrastructure changes. Application deployed via ArgoCD sync. Automated smoke tests validate the deployment.

Production gate — Manual approval required from designated approvers. Security review attestation for regulated workloads.

Production deploy — Rolling update via ArgoCD. Automated canary health check. Immediate rollback if error rate threshold is exceeded.

Infrastructure as code

All infrastructure defined in Terraform with:

• Remote state in Azure Blob Storage with state locking
• Environment-specific variable files (no manual configuration drift)
• Module library for shared infrastructure patterns
• Policy compliance checked in pipeline via terraform plan output

GitOps with ArgoCD

Kubernetes manifests are in a dedicated repository, separate from application code. A promotion pipeline updates manifests when a new container image passes all quality gates.