Zero-Downtime PostgreSQL Major-Version Upgrade at Scale
- Mohammad Abu Mattar
- DevOps
- Databases
- Cloud Computing
- Published: 25 Jul, 2026
- Updated: 25 Jul, 2026
A multi-terabyte PostgreSQL 12 database was reaching end of life, and the business ran around the clock, so the usual answer of "schedule a maintenance window" was off the table. We upgraded it to Pos
Migrating a Monolith to Kubernetes Without a Big-Bang Cutover
- Mohammad Abu Mattar
- DevOps
- Cloud Native
- Architecture
- Published: 20 Jul, 2026
- Updated: 20 Jul, 2026
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
Cutting a SaaS AWS Bill 41% Without Slowing Delivery
- Mohammad Abu Mattar
- Cloud Computing
- DevOps
- Cloud Native
- Published: 19 Jul, 2026
A growing SaaS ran on EKS with a full GitOps pipeline, and it was over its AWS budget nearly every month. The reflex from leadership was the usual one: freeze features until the bill comes down. That
QuenchWorks: Building a 0-CVE Container Image and Helm Chart Catalog
- Mohammad Abu Mattar
- Security
- DevOps
- Cloud Native
- Published: 15 Jul, 2026
When Bitnami moved its long-trusted catalog behind a paid tier, thousands of teams woke up to a supply-chain problem they didn't choose. The free images they had pinned in production would stop gettin