In-depth guides on Docker, Kubernetes, AWS, CI/CD, AI/ML, and modern infrastructure — written by engineers, for engineers.
Showing 28–36 of 371 articles
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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.
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.
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.
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.
Both paths lead to senior DevOps roles, but at very different speeds and with very different skills. Here's an honest comparison to help you decide based on where you are right now.
Your workflow runs are still slow even with actions/cache. Cache miss every time, cache key conflicts, wrong paths — here's how to diagnose and fix GitHub Actions caching.
A PDB prevents Kubernetes from evicting too many pods at once during maintenance. Here's how it works, how to set it up, and the one mistake that causes node drains to hang.
Phi-3 Mini delivers GPT-3.5 quality at a fraction of the compute cost. Here's how to deploy it on Kubernetes using Ollama or vLLM with GPU or CPU-only nodes.
Contract DevOps roles pay 40-70% more hourly but come with real trade-offs. Here's an honest breakdown to help you decide what's right for your situation.