Disaster Recovery (Terraform, Kubernetes, Prometheus, PostgreSQL, S3) overview

A disaster recovery and business continuity stack that uses Terraform to provision standby infrastructure across multiple cloud regions. Kubernetes workloads are backed up via declarative state snapshots stored in S3, with PostgreSQL point-in-time recovery configured for database resilience. Prometheus and Grafana monitor replication lag and failover readiness, while automated runbooks handle DNS cutover and traffic rerouting during actual incidents. Targeted at operations teams responsible for RPO/RTO SLAs on critical production systems. The tradeoff is the cost of maintaining warm standby resources and the complexity of testing failover procedures without impacting production.