When your user base spans across continents, deploying servers in a single geographic zone causes high latency and risk of complete service blackouts. We explore how to deploy containerized infrastructures globally to deliver 99.999% uptime.
1. Infrastructure as Code (IaC) with Terraform
Never configure servers manually through the AWS console. By declaring resources using Terraform, we ensure that staging and production environments are identical. Multi-region deployments are structured as reusable Terraform modules, allowing us to spin up a new Kubernetes cluster in Frankfurt or Singapore in less than 15 minutes.
2. Traffic Routing via Route 53 Latency Policies
We configure Route 53 to route incoming user requests to the closest regional cluster. If the primary cluster (e.g. ap-south-1 in Mumbai) encounters issues or fails health checks, Route 53 instantly reroutes user traffic to a backup cluster (e.g. eu-central-1) automatically.
3. Database Replication Strategies
While stateless server nodes are easy to scale, stateful databases are the bottleneck. We utilize PostgreSQL Aurora Global Database clusters with a single write-region and read-replicas scattered across regions, combined with Redis caches locally to ensure rapid response times under heavy loads.