DevOps & Cloud Articles

DevOps & Cloud Jun 24, 2026 • 4 min read

I've Been Deploying Wrong: Why Your Production Server Shouldn't Think Like a Developer

Three months ago, I got paged at 2 AM because a deployment failed with a cryptic Git error. My first instinct? Blame Git. My second instinct? Panic. But the real culprit wasn't Git being broken—it was me being careless about how I thought about production deployments.

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DevOps & Cloud Jun 23, 2026 • 4 min read

Stop Patching Everything: Why Your CVSS Score Means Nothing Without Context

I spent three hours last Tuesday patching a "critical" vulnerability on a development database that nobody uses. It was a 9.2 severity score, so obviously it had to be done immediately. Our security team flagged it, the alert system screamed, and I went into emergency mode. By th...

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DevOps & Cloud Jun 22, 2026 • 4 min read

The SELinux Breaking Change Nobody's Talking About (Until It Breaks Your Pods)

I spent three hours last week debugging why a privileged container couldn't write to a volume that an unprivileged container had created. The volume existed, the permissions looked fine, but everything just... hung. It wasn't until I dug into the SELinux contexts that things clic...

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DevOps & Cloud Jun 21, 2026 • 4 min read

The Security Hole in My Monitoring Stack I Didn't Know I Had

I was sitting in a security audit last quarter when the consultant casually mentioned that my Prometheus node exporter had "unrestricted container execution capabilities." I laughed. It's just reading metrics. Then she showed me the RBAC role I'd written three years ago, and my s...

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DevOps & Cloud Jun 20, 2026 • 5 min read

The Cache Consistency Problem I Didn't Know I Had (Until It Cost Us)

Three months into production, our ReplicaSet controller started behaving like a ghost—taking actions based on information that didn't actually exist anymore. A pod would be deleted, our controller would see the old state in its cache, and we'd recreate it seconds later. Users rep...

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DevOps & Cloud Jun 19, 2026 • 4 min read

Stop Letting Your Kubernetes Nodes Blow Up: Why Memory QoS Finally Makes Sense

I spent three hours debugging an OOM killer rampage on a production node last month. The system had plenty of RAM available—or so I thought—but every Burstable pod was hoarding memory like it was going out of style, and when the kernel finally had enough, it started executing pro...

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DevOps & Cloud Jun 18, 2026 • 4 min read

Stop Wasting CPU Cores on Sidecars: Why Pod-Level Resource Managers Finally Solve a Real Problem

I spent three hours last week debugging why our ML inference pipeline was getting throttled on what should have been an oversized node. The culprit? A metrics-exporter sidecar that was hogging an entire dedicated CPU core because our Kubernetes setup required every container in t...

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DevOps & Cloud Jun 17, 2026 • 5 min read

The Kubernetes Security Policy I Can't Accidentally Delete (And Why That Matters)

Last month, I was helping a client recover from what should have been a routine cluster upgrade. Their platform team had defined ValidatingAdmissionPolicies to enforce image registries and prevent privileged containers. Good security posture. But somewhere in the chaos of a botch...

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DevOps & Cloud Jun 16, 2026 • 4 min read

DRA Finally Grew Up: Why I'm Actually Excited About Kubernetes Resource Management Again

I spent three hours last week debugging why a GPU pod kept getting scheduled on a node that didn't have the accelerator it requested. The pod would sit there pending, the logs were useless, and I had to ssh into the cluster to inspect the actual driver state manually. It was the...

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DevOps & Cloud Jun 15, 2026 • 4 min read

Storage in Kubernetes Stopped Being An Afterthought, and That Changes Everything

I remember the exact moment I realized Kubernetes storage was becoming a real problem at work. We had a containerized PostgreSQL instance running in production, and a developer asked the most innocent question: "Can we take a snapshot of just this database without shutting it dow...

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