Title: Reflections on the Wild West of Kubernetes

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December 17, 2018 was a day like any other in my engineering journey, but looking back, it feels like a snapshot of an era that’s fast fading. I was deep into another long week at work, trying to keep our platform running smoothly under the weight of Kubernetes and all its emerging cousins.

The Platform is a Jenga Tower

Every morning, I’d walk past the server racks with a mixture of dread and excitement. Our platform, a sprawling collection of services running on a mix of Kubernetes, Docker, and traditional VMs, felt like an intricate Jenga tower. Each day brought new pieces to add or remove, always threatening to topple it over.

Kubernetes was our darling, but every time I tried to explain its value to my team, they’d stare back with looks that suggested they were hearing the latest buzzword in the echo chamber of tech conferences. “Helm for what now?” one developer would ask, rolling their eyes at yet another chart upgrade.

The Helm of Confusion

One particular day, I was trying to clean up our Helm charts—a task that seemed as simple as it sounded. But every time I tried to deploy a new version with helm upgrade, the command would fail miserically due to some obscure error about a missing value or a deprecated flag. It took me hours of debugging and reading through the GitHub issues before I realized I had forgotten to update one of the dependencies in our values.yaml file.

This was just one example of the many small battles we fought daily. The Helm community at that time was still finding its footing, with documentation that felt like it was written by someone who just barely understood their own tool. We spent a lot of time trying to figure out why helm install would work but helm upgrade wouldn’t.

Istio and the Mysteries of Sidecars

Istio had started to emerge as the de facto service mesh, promising to solve our distributed tracing, service-to-service authentication, and traffic management woes. But setting it up felt like a dark art. Every time we tried to deploy an application with Istio, half of its sidecar proxies would fail due to some odd network configuration issue.

I spent several days trying to figure out why our sidecarInjectorWebhook wasn’t working as expected. I eventually tracked down the problem: one of the Kubernetes RBAC roles had a typo in it that prevented the webhook from being created correctly. Once fixed, everything worked like a charm. But that’s not to say there weren’t moments when I wanted to scream at my computer.

The Rise of Serverless

Serverless and Lambda were all the rage back then. Everyone was talking about how they would change our lives forever. But every time we tried to set up a simple serverless function, it felt like we were stepping into quicksand. Every new service or library seemed to require some undocumented gotcha that made me feel like I was building a puzzle with missing pieces.

One of the most frustrating experiences was trying to debug an error in our serverless function’s logs. Unlike traditional applications where you can easily attach a debugger, these functions were ephemeral by design, making it hard to trace back what went wrong when things inevitably broke.

The Promises of GitOps

GitOps was still in its infancy, but the promise was undeniable. I remember spending hours trying to set up flux for our Kubernetes cluster—only to find out that there wasn’t enough documentation or community support at the time. Debugging kubectl apply commands felt like a full-time job.

We eventually got it working, and it did wonders for keeping our configurations in sync with Git. But every time someone added a new service or modified an existing one, we’d have to manually update the corresponding files and run flux bootstrap. The whole process felt clunky and error-prone.

Conclusion

Looking back, 2018 was a wild west of Kubernetes and its ecosystem. Each day brought new challenges, but also new opportunities. We learned as we went along, and while it wasn’t always smooth sailing, the journey has been incredibly rewarding. Today, our platform is much more resilient and easier to manage thanks to the lessons we’ve learned.

The tech landscape moves fast, but some things never change: the need for clear communication, thorough documentation, and patience in the face of complexity. Those are the lessons I carry forward with me as I continue on this journey.

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