Cloud Multi-Region Architecture: AWS, GCP, and Azure Patterns with Terraform

February 22, 2026

Multi-Region-Aws, Multi-Region-Gcp, Multi-Region-Azure, Cross-Region-Networking, Cost-Estimation

Multi-Region, Aws, Gcp, Azure, Terraform, Route53, Aurora, Spanner, Cosmos-Db, Vpc-Peering, Transit-Gateway

Cloud Multi-Region Architecture Patterns#

Multi-region is not just running clusters in two places. It is the networking between them, the data replication strategy, the traffic routing, and the cost of keeping it all running. Each cloud provider has different primitives and different pricing models. Here is how to build it on each.

The three pillars: a Kubernetes cluster per region for compute, a global traffic routing layer to direct users to the nearest healthy region, and a multi-region database for state. Get any one wrong and multi-region gives you complexity without resilience.

Comparing Serverless Platforms: Cloud Run, Azure Functions, Lambda, and Cloudflare Workers

February 22, 2026

Serverless

Intermediate

Serverless-Platform-Selection, Cost-Estimation, Architecture-Decisions

Cloud-Run, Azure-Functions, Aws-Lambda, Cloudflare-Workers, Serverless-Comparison, Cold-Start, Pricing

Gcloud, Az, Aws-Lambda, Wrangler, Cloud-Run, Azure-Functions

Comparing Serverless Platforms#

Choosing a serverless platform is not about which one is “best.” Each platform makes different tradeoffs around cold start latency, execution limits, pricing granularity, and ecosystem integration. The right choice depends on what you are building, what cloud you already use, and which constraints matter most.

This framework compares the four major serverless compute platforms as of early 2026: AWS Lambda, Google Cloud Run, Azure Functions, and Cloudflare Workers.

Testing Infrastructure Code: The Validation Pyramid from Lint to Integration

February 22, 2026

Infrastructure

Intermediate

Terraform-Testing-Strategy, Static-Analysis, Plan-Testing, Integration-Testing, Cost-Estimation

Terraform, Testing, Tflint, Checkov, Conftest, Terratest, Infracost, Opa, Validation, Static-Analysis, Integration-Testing, Policy-as-Code

Terraform, Tflint, Checkov, Conftest, Opa, Terratest, Infracost

Testing Infrastructure Code#

Infrastructure code has a unique testing challenge: the thing you are testing is expensive to instantiate. You cannot spin up a VPC, an RDS instance, and an EKS cluster for every pull request and tear it down 5 minutes later without significant cost and time. But you also cannot ship untested infrastructure changes to production without risk.

The solution is the same as in software engineering: a testing pyramid. Fast, cheap tests at the bottom catch most errors. Slower, expensive tests at the top catch the rest. The key is knowing what to test at which level.