Kubernetes blue-green deployment pipeline

Implement zero-downtime deployments with Kubernetes. Setup: 1. Create blue and green deployment manifests with identical specs. 2. Configure service selector to route traffic between environments. 3. Implement health checks and readiness probes. 4. Set up Helm charts for version management. 5. Create CI/CD pipeline with automated testing gates. 6. Add rollback mechanism with previous version retention. 7. Implement traffic splitting for canary testing. 8. Monitor deployment metrics with Prometheus and Grafana. Include namespace isolation and resource quotas.