What DevOps Hiring Managers Actually Look For (Honest 2026 Guide)
After hundreds of DevOps interviews, here's what hiring managers actually care about — and why most candidates fail even when they know the tools.
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The DevOps Knowledge Base
In-depth guides on Docker, Kubernetes, AWS, CI/CD, AI/ML, and modern infrastructure — written by engineers, for engineers.
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Page 54 of 91
Rolling Update vs Recreate — Kubernetes Deployment Strategies Explained
Rolling update keeps your app running during deploys. Recreate kills everything then starts fresh. Here's when to use each, plus Blue-Green and Canary explained simply.
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Build an AI-Powered Kubernetes YAML Generator Using LLMs
Stop hand-writing Kubernetes manifests from scratch. Build a tool that takes natural language descriptions and generates production-ready K8s YAML — Deployments, Services, HPA, NetworkPolicies, and more.
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Datadog Agent Not Sending Metrics — Diagnosis and Fix Guide
Datadog dashboards show no data, hosts appear offline, or custom metrics aren't showing up. Here's how to systematically diagnose and fix Datadog agent issues on Kubernetes and VMs.
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Kind vs K3d vs Minikube — Best Local Kubernetes in 2026
Three tools for running Kubernetes on your laptop. They're not all equal — kind is fastest for CI, k3d is lightest for dev, minikube has the best feature set. Here's the full comparison.
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Senior DevOps Engineer Skills Checklist — Are You Actually Ready?
What separates a mid-level DevOps engineer from a senior one isn't just tool knowledge. Here's the honest checklist — technical skills, design thinking, and the soft skills that actually get you promoted.
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What is Node Affinity in Kubernetes? Pod Scheduling Explained Simply
Node affinity lets you control which nodes your pods run on. Here's a plain-English explanation of nodeSelector, nodeAffinity, podAffinity, and taints/tolerations — when to use each.
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AWS SNS vs SQS vs EventBridge — When to Use Which?
SNS, SQS, and EventBridge all move messages around AWS, but they solve different problems. Here's a clear explanation of each with real use cases and the decision criteria that actually matters.
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Build an AI-Powered Dockerfile Optimizer Using Claude API
Feed any Dockerfile to Claude and get back a production-ready version with smaller image size, better layer caching, security fixes, and an explanation of every change.
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