Daily DevOps & .NET - Where Code Meets Culture

“Just Delete the User”: Famous Last Words Before the GDPR Audit

Published on 4/7/26 5:00 pm by Martin Stühmer

Your PM thinks erasure is a quick database DELETE. Three weeks later, you’ve found user data in seventeen places: production DB, analytics warehouse, Redis cache, Elasticsearch, backup tapes, and that legacy system nobody dares touch. “Delete” actually means orchestrating coordinated erasure across distributed systems, maintaining audit trails, notifying third parties, and proving it worked. This guide shows the fatal patterns I’ve seen fail spectacularly, then walks through proper orchestration with Azure Durable Functions, soft-delete with anonymization, verification checks, and immutable audit logs.

AKS at Scale: Hard-Won Lessons from 1000+ Node Clusters

Published on 4/1/26 5:00 pm by Jendrik Brack

Running AKS at 1,000+ nodes exposes hard limits in etcd, networking, observability, and cost that never appear in vendor documentation. This article shares operational lessons from mega-cluster deployments: where the scaling cliffs are and how to plan around them before production outages force your hand.

Why Your Azure Portal Clicks Will Fail the Next Audit

Published on 3/31/26 5:00 pm by Martin Stühmer

Manual portal configuration creates audit nightmares. When auditors ask “Show me your change control process,” clicking through Azure Activity Logs won’t save you. Here’s how Bicep turns infrastructure into auditable code—where Git history becomes your compliance evidence and pull requests become your approval workflow.

Stop Deploying Garbage to Production

Published on 3/26/26 5:00 pm by Martin Stühmer

I’ve watched “senior engineers” deploy code with failing tests because “we need to ship.” I’ve seen secrets hardcoded in workflows, vulnerabilities ignored with || true, and production deployments without a single approval gate.

Then the same teams act surprised when they get breached. Or fail an audit. Or both.

Security gates aren’t process overhead—they’re the bare minimum that separates professional engineering from reckless gambling with customer data. Here’s exactly how to build GitHub Actions pipelines that actually protect your systems.

Hybrid AKS: Bridging Cloud and On-Prem with Azure Arc

Published on 3/25/26 5:00 pm by Jendrik Brack

Most organizations run Kubernetes across cloud and on-prem simultaneously. This article covers practical patterns for hybrid AKS: ExpressRoute and VPN connectivity, Azure Arc for unified management, consistent policy enforcement, DNS resolution, and identity federation without duplicating systems.