Disaster Recovery Planning: Building Resilient Infrastructure

Kiril Urbonas

3 weeks ago • 4 min read•Updated Feb 21, 2026•0 views

# Backup Terraform state terraform { backend "s3" { bucket = "terraform-state" key = "production/terraform.tfstate" region = "us-east-1" encrypt = true dynamodb_table = "terraform-locks" } }

# Primary region module "primary" { source = "./modules/infrastructure" region = "us-east-1" } # Secondary region module "secondary" { source = "./modules/infrastructure" region = "us-west-2" }

# Automated failover script #!/bin/bash set -e # Update DNS to secondary region aws route53 change-resource-record-sets \ --hosted-zone-id Z123456 \ --change-batch file://failover.json # Verify failover ./verify_failover.sh

Production Notes 1 #

For Disaster Recovery Planning: Building Resilient Infrastructure, define pre-deploy checks, rollout gates, and rollback triggers before release. Track p95 latency, error rate, and cost per request for at least 24 hours after deployment. If the trend regresses from baseline, revert quickly and document the decision in the runbook.

Keep the operating model simple under pressure: one owner per change, one decision channel, and clear stop conditions. Review alert quality regularly to remove noise and ensure on-call engineers can distinguish urgent failures from routine variance.

Repeatability is the goal. Convert successful interventions into standard operating procedures and version them in the repository so future responders can execute the same flow without ambiguity.

Production Notes 2 #

Repeatability is the goal. Convert successful interventions into standard operating procedures and version them in the repository so future responders can execute the same flow without ambiguity.

Production Notes 3 #

Repeatability is the goal. Convert successful interventions into standard operating procedures and version them in the repository so future responders can execute the same flow without ambiguity.

Production Notes 4 #

Repeatability is the goal. Convert successful interventions into standard operating procedures and version them in the repository so future responders can execute the same flow without ambiguity.