GitOps CI/CD pipeline for internal deployments
Rollback time reduced from ~2h to under 90 seconds; 100% of infrastructure changes now reviewed via pull request.
- Moved deployments behind ArgoCD, so merging to main triggers the deployment automatically.
- Put Terraform behind Atlantis, so every infrastructure change goes through a pull request with the plan visible in the review.
- Repackaged internal applications as Helm charts with separate values per environment.
- Set up Prometheus and Grafana for platform monitoring.