Luke Hebert
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Welcome to the articles section, where business, technology, and everyday problem-solving meet. You’ll find practical how-tos, troubleshooting notes from the trenches, and the occasional take on whatever’s happening in the world. Some posts will save you time, some will spark ideas, and a few will just be me thinking out loud. Grab a coffee and dig in.

Jstack and Jcmd: What Are Your Java Threads Even Doing? August 12, 2025

Jstack and Jcmd: What Are Your Java Threads Even Doing?

A practical guide to using the jcmd and jstack utilities for collecting thread dumps, heap data, and CPU information from a running JVM process. Includes ready-to-use scripts and one-liners for troubleshooting slow or hung Java applications.
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Kubernetes Resource Management August 11, 2025

Kubernetes Resource Management

A practical guide to configuring CPU, memory, and storage requests and limits in Kubernetes, covering container-level, Pod-level, and namespace-level resource controls. Includes troubleshooting steps for common scheduling and OOM issues.
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Pod Node Assignment & Manual Scheduling August 11, 2025

Pod Node Assignment & Manual Scheduling

Learn how to assign Kubernetes pods to specific nodes at creation time and how to reassign running pods using Binding objects. Covers scheduler behavior and common pitfalls that leave pods stuck in Pending state.
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JSON Path August 10, 2025

JSON Path

A practical guide to JSON Path syntax, operators, and filters, with hands-on examples for extracting data from JSON documents and Kubernetes resources via kubectl.
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Useful JsonPath Queries for Kubernetes August 10, 2025

Useful JsonPath Queries for Kubernetes

A practical guide to kubectl JsonPath expressions for extracting, formatting, and combining Kubernetes resource fields. Covers core patterns, array indexing, literal strings, and when to reach for jq instead.
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Kubernetes EFS Storage (IAM Role) August 9, 2025

Kubernetes EFS Storage (IAM Role)

A practical guide to provisioning EFS filesystems and wiring them into Kubernetes via the AWS EFS CSI driver, IAM roles, and standard storage manifests. Covers StorageClass, PVCs, Deployments, and StatefulSets for shared, elastic storage.
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