Hardware vs OS Virtualization. A deep dive into Hypervisors (Xen, KVM) vs Containers (LXC, Docker). Includes Glossary, FAQ, and Cost Analysis.
To understand why my server is so small yet powerful, we must look at the house-sized 1st gen computers. I reveal the history of hardware dieting and the secret to saving cloud costs.
How to deploy without shutting down servers. Differences between Rolling, Canary, and Blue-Green. Deep dive into Database Rollback strategies, Online Schema Changes, AWS CodeDeploy integration, and Feature Toggles.
Conductor of VMs. Is the CEO running it directly (Type 1), or hiring a manager (Type 2)?
Solving server waste at dawn and crashes at lunch. Understanding Auto Scaling vs Serverless through 'Taxi Dispatch' and 'Pizza Delivery' analogies. Plus, cost-saving tips using Spot Instances.
When I started, VMs and containers were completely different worlds. But now, technologies like Kata Containers (running containers as VMs), Firecracker (MicroVMs), and gVisor (sandbox containers) are blurring the lines.
The key insight: You can only pick 2 out of 3 — performance, security, or cost. That's why choosing the right technology for your situation matters.
I don't panic when I see my AWS bill anymore. I've learned to use the right technology for the right job.
