How we made deployments safer at Sekoia

Aviary is an in-house canary-deployment system for Kubernetes developed to enable safe, progressive rollouts of new Docker images across dozens of microservices without changing existing deployment stacks. The article explains Aviary's workflow—duplicating deployments into '-primary' and '-canary' copies, scaling and comparing metrics from Prometheus to decide promotion or rollback—along with configuration options and operational benefits, emphasizing minimal footprint and no required changes to CI/CD or application code.