Disaster Recovery

Multi-Region DR as Code (DRaaC): Building Resilient Cloud Architectures for Israeli Enterprises

Published December 2, 2025 • 13 min read

Why Disaster Recovery as Code?

In today’s always-on digital economy, downtime is not an option. For Israeli enterprises, regulatory requirements, cyber threats, and geopolitical risks make robust disaster recovery (DR) a business imperative. Traditional DR approaches are slow, manual, and error-prone. Disaster Recovery as Code (DRaaC) leverages Infrastructure as Code (IaC) tools like Terraform to automate, test, and document DR processes—ensuring rapid, reliable recovery across multiple cloud regions.

Key Concepts: RTO, RPO, and Multi-Region Resilience

Recovery Time Objective (RTO) is the maximum acceptable downtime after a failure. Recovery Point Objective (RPO) is the maximum acceptable data loss. DRaaC enables you to codify and test these objectives, using Terraform modules to deploy redundant infrastructure, replicate data, and automate failover between regions (e.g., AWS eu-central-1 and eu-west-1).

Automating Failover with Terraform

With Terraform, you can define DR environments as code, including VPCs, databases, storage, and DNS failover policies. By integrating with cloud-native services (Route 53, Cloud SQL, etc.), you can orchestrate seamless failover and failback, reducing manual intervention and human error.

Game Days: Testing Your DR Plan

A DR plan is only as good as its last test. "Game Days" are scheduled simulations of disaster scenarios—region failure, data corruption, DDoS attacks—where teams execute the DRaaC playbook and measure RTO/RPO performance. Automated testing with tools like Chaos Engineering platforms (Gremlin, AWS Fault Injection Simulator) ensures your DR plan works when it matters most.

Israeli Context: Compliance, Security, and Local Cloud Regions

Israeli organizations must comply with Bank of Israel, PPR, and GDPR regulations. DRaaC helps document controls, automate evidence collection, and support audits. With the arrival of local AWS and Google Cloud regions, multi-region DR is more accessible and cost-effective than ever.

Example: Terraform DR Module Skeleton


module "dr" {
  source           = "./modules/dr"
  primary_region   = "eu-central-1"
  secondary_region = "eu-west-1"
  rto_minutes      = 15
  rpo_minutes      = 5
  enable_failover  = true
}