The Story
Last lesson, you did something real. You took your Dockerized trip planner and ran it on an actual cloud server, a Linux machine in a data center that you control. One server, running your whole stack. That’s a genuine milestone.
Now picture the problem that comes after success.
Your app takes off. Traffic doubles, then doubles again. One server isn’t enough, so you add another, and another. Soon you’ve got a dozen servers, each running a stack of containers. One crashes at 2 AM. Which server was it on? Did something restart it, or is your app just down for everyone in that region? Then traffic spikes on a holiday and you need ten more servers for six hours, and then back down again. Who’s doing all of that, by hand, at 2 AM?
This lesson continues with the full course
The story intro above is free to read. The full lesson (prompts, explanations, and adapt-it exercises) requires the Scale It ($249) tier or above.
New here? Lesson 1 is free and ends with a working app.
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