7 articles tagged with ""containers""
Every time you push code and wait 8 minutes for Docker to rebuild from scratch, a kitten cries. Learn how Docker layer caching actually works - and the one ordering mistake that's killing your CI/CD pipeline.
Your Docker builds are slow because you're doing it wrong. Here's how layer caching actually works — and how to make your CI builds go from 10 minutes to 90 seconds.
I used to spend more time patching EC2 instances than writing features. Then I discovered ECS Fargate and never looked back. Here's how I migrated our e-commerce backend to serverless containers — and the gotchas that nearly broke production.
By default every pod in your cluster can talk to every other pod. That's basically leaving every door in your office unlocked. After running production Kubernetes clusters I learned that NetworkPolicy is the firewall you absolutely need but nobody tells you about!
I once managed three Kubernetes environments by maintaining three near-identical YAML folders. Dev, staging, prod — different by exactly three lines each. Then I discovered Helm and felt simultaneously enlightened and deeply ashamed of my past self.
After spending an entire afternoon convinced my app was broken, I discovered the real culprit: I was trying to connect containers using localhost like a complete amateur. Docker networking is deceptively simple once you stop fighting it.
After countless deployments where my 'perfectly fine' Docker containers crashed in production, I finally learned what separates a dev Dockerfile from a production-hardened one. Spoiler: it's not just adding HEALTHCHECK at the end.