Debugging the DevOps Drama: A Platform Engineer’s Nightmare

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Alright, October 30th, 2023. Another day in the life of a platform engineer. Today was… well, it’s hard to pinpoint one moment over another as they all blend into this never-ending cycle of fixing things, shipping features, and arguing about infrastructure design patterns.

The AI/LLM Infrastructure Explosion

The tech world is going bonkers with AI/Large Language Model (LLM) infrastructure. We’ve been deploying our first major LLM instance to production, and boy, it’s a rollercoaster. It feels like we’re in the early days of the internet, but with a lot more complexity thrown into the mix. The sheer volume of traffic and requests is mind-boggling.

We’ve got all sorts of tools—CNCF projects, WebAssembly on the server side, and everything else under the sun—to handle this. But as they say, “with great power comes great responsibility.” I can’t tell you how many times I’ve found myself stuck in a 3 AM debugging session trying to figure out why my service is failing to handle a request within SLA.

The Platform Engineering Mindset

Platform engineering has truly become mainstream. Our team’s role isn’t just about writing code; it’s about ensuring that the systems we build are robust, scalable, and maintainable. We’re not just engineers anymore—now, we’re platform architects. But with this comes a whole new set of challenges.

Today, I had a heated discussion with one of my developers about whether to use Kubernetes or AWS Fargate for our latest service. Both have their pros and cons, but the decision isn’t just technical; it’s also financial and operational. This is where FinOps come into play—balancing the cost against performance while ensuring we’re not over-provisioning resources.

The WebAssembly Journey

WebAssembly on the server side? Yeah, I’m all in. We’re experimenting with it as a way to offload some of our CPU-heavy tasks from our main application servers. But, oh boy, is it tricky! Debugging performance issues and ensuring security are major hurdles we’ve been wrestling with.

One particularly frustrating moment was when we started seeing weird behavior after deploying WebAssembly to production. It took us days to track down the issue—turns out, a small bug in our C++ code caused a segmentation fault, which wasn’t being caught properly. It’s moments like these that remind me why I love this job—I get to tackle some of the most challenging problems.

Developer Experience as Discipline

Developer experience (DX) has become its own discipline. We’re constantly trying to make life easier for our developers—be it through better tooling, more intuitive workflows, or just plain old documentation. The other day, I worked on a PR that improved the DX for our CI/CD pipelines. It was so satisfying when we saw the difference in how fast developers could get new features deployed.

But DX isn’t just about tools; it’s also about culture and process. We’ve started using DORA metrics to track our release processes and ensure we’re continuously improving. It’s not always easy, but having a clear set of goals helps us stay focused on what matters most.

A Real-World Lesson

Today was a bit of a disaster in the best way possible. I accidentally saved my company half a million dollars. Yes, you read that right. We had an internal tool running on a server that wasn’t properly configured for load balancing. It was using excessive resources, and by migrating it to our new infrastructure, we managed to cut costs significantly.

It’s moments like these that remind me why I love being a platform engineer—there are always unexpected challenges, but there are also opportunities to make a real impact. Debugging the DevOps drama can be exhausting, but at the end of the day, it’s incredibly rewarding.

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So here we are, another day in the life. The tech landscape is constantly evolving, and with it, so do our roles as platform engineers. But as long as I’m solving problems and making a difference, I couldn’t ask for anything more.