Cloud, Kubernetes, and platform engineering.

Senior-engineer field notes on cloud, Kubernetes, AWS, Terraform, and platform engineering by Ercan Ermis.

All posts

104 posts

Checking Cloud with Cloud: M365 Security Posture Scanning 101

Your Microsoft 365 tenant is cloud infrastructure and it drifts. A 101 on posture scanning with CIS, EIDSCA, and CISA ScuBA, and why the scanner is SaaS too.

Jul 03, 2026 5 min

AWS Lambda MicroVMs: Serverless Gets a Stateful, Isolated Sandbox

AWS Lambda MicroVMs bring VM-level isolation, snapshot-fast launch, and suspend-resume state to serverless. What changes, and where the Firecracker primitive fits.

Jun 23, 2026 5 min

No Phone, No Account: Google's QR Wall and GDPR

Google now gates new account creation behind a phone-based QR verification. No smartphone, no account. Here is why that collides with GDPR data minimization.

Jun 18, 2026 6 min

AWS Multi-party Approval for Organizations

Multi-party approval in AWS Organizations gates high-risk operations behind a quorum of human approvers. Here is how it works and the security it buys.

Jun 13, 2026 6 min

Local DynamoDB Grew Up: A Hands-On Look at ExtendDB

DynamoDB Local has been the laptop stand-in for AWS DynamoDB since 2013. It's a Java JAR, runs in memory or against a SQLite file, accepts almost any request shape, has no real …

May 21, 2026 10 min

How I Found a Hidden Cloudflare Bug on a Sunday mid-night (The joy of curl)

It was supposed to be a quick weekend project. You know the kind: "I'll just spin up an egress VM, route some traffic through it, sip my ...

May 10, 2026 4 min

Why Your SSH Is Yelling About Quantum Computers (And How to Fix It)

You SSH into your server and see this:

** WARNING: connection is not using a post-quantum key exchange algorithm.
** This session may be vulnerable to "store now, decrypt later" …

Apr 17, 2026 5 min

IaC-First: Why I am Never Touch the AWS Console in Production

"Never touch the AWS console in production" sounds like an extreme rule. It is not. It is the most important operational discipline in a cloud-native team, and the cost of …

Apr 16, 2026 6 min

I dropped my Google Pixel 9 XL Pro from 6th floor balcony to the street

My phone slipped out of my hand and executed a textbook, no-hesitation, full-commitment dive from the 6th floor straight to the street.

Feb 01, 2026 4 min

AWS S3 New Feature: Re-encryption without Movement

The recent release of the UpdateObjectEncryption API marks a significant shift in how we manage data security at scale. Historically, changing the encryption of an S3 object was a …

Jan 30, 2026 4 min

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Two more sites, same author, different ground.