---
title: "architecture"
lang: "en"
author: "Mohammad Abu Mattar"
canonical: https://mkabumattar.com/categories/architecture
---

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# Architecture

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# Architecture

CategoryAllDevOps (5)Cloud Native (4)Cloud Computing (3)Architecture (2)Databases (1)Platform Engineering (1)Reliability (1)Security (1)TagAllKubernetes (3)Argo CD (2)EKS (2)GitOps (2)Active Active (1)Argo Rollouts (1)ArtifactHub (1)AWS (1)Backstage (1)Containers (1)Cosign (1)Cost Optimization (1)Cutover (1)Database Migration (1)Failover (1)FinOps (1)Golden Paths (1)Helm (1)High Availability (1)Idempotency (1)Internal Developer Platform (1)Logical Replication (1)Microservices (1)Migration (1)Multi Region (1)Payments (1)PostgreSQL (1)RDS (1)Rollback (1)RPO (1)RTO (1)Savings Plans (1)Self Service (1)SLSA (1)Strangler Pattern (1)Supply Chain Security (1)Terraform (1)Traffic Shifting (1)Trivy (1)Wolfi (1)Zero Downtime (1)SortNewest firstOldest firstA to ZShortest read first

[![Multi-Region Active-Active for a Payments API](/_astro/hero.RPbRRCdE_flG0g.webp)](/case-studies/post/multi-region-active-active-payments)

## [Multi-Region Active-Active for a Payments API](/case-studies/post/multi-region-active-active-payments)

-   [Architecture](/case-studies/categories/architecture)
-   [Cloud Computing](/case-studies/categories/cloud-computing)
-   16 Aug 2026
-   06 Mins read

A payments API that moves real money had been running comfortably in a single AWS region for years. It was reliable until the day it was not: a regional control-plane incident took the whole service o

[#Multi Region](/case-studies/tags/multi-region)[#Active Active](/case-studies/tags/active-active)[#Payments](/case-studies/tags/payments)+5 tags

[Read Case Study](/case-studies/post/multi-region-active-active-payments)

[![Migrating a Monolith to Kubernetes Without a Big-Bang Cutover](/_astro/hero.CAKh7bXG_Z1PnEBt.webp)](/case-studies/post/monolith-to-kubernetes-strangler-migration)

## [Migrating a Monolith to Kubernetes Without a Big-Bang Cutover](/case-studies/post/monolith-to-kubernetes-strangler-migration)

-   [DevOps](/case-studies/categories/devops)
-   [Cloud Native](/case-studies/categories/cloud-native)
-   20 Jul 2026
-   07 Mins read

Almost every failed "let's move off the monolith" project shares one detail: the plan was a big-bang cutover. Rewrite in parallel, pick a weekend, flip the switch, and pray. This is the opposite of th

[#Kubernetes](/case-studies/tags/kubernetes)[#EKS](/case-studies/tags/eks)[#Migration](/case-studies/tags/migration)+4 tags

[Read Case Study](/case-studies/post/monolith-to-kubernetes-strangler-migration)