Guests: Kat Cosgrove | Billy Thompson
Companies: Minimus |Akamai
Show Name: KubeStruck
Topics: Kubernetes, Open Source, CNCF

Few open source projects have had the global impact of Kubernetes. What began as a Google-born experiment has become the backbone of modern cloud computing. In this conversation, Kat Cosgrove, Kubernetes Release Team Subproject Lead and Head of Developer Advocacy at Minimus, and Billy Thompson, Senior Global DevOps & Platform Engineering, Office of the CTO at Akamai, discuss how Kubernetes grew up — the maturity, the cultural shifts, and the unseen challenges of maintaining one of the largest open source ecosystems in the world.

Kubernetes has been the anchor of the Cloud Native Computing Foundation (CNCF) since its inception. But as Cosgrove points out, it’s now far beyond its early days of rapid experimentation. “There are a lot of jokes that Kubernetes is going to be one-dot-x forever,” she says, “but the ecosystem is mature — it’s underpinning a significant amount of the world’s digital infrastructure.”

That maturity brings challenges. Cosgrove describes the cultural evolution within the project: “We forget that we’re not a small project anymore. It’s not just me and 15 of my best friends — it’s me, my friends, and 300 strangers.” Many maintainers still carry a decade of shared social context, which can make it hard for newcomers to find their footing. Documentation and processes that once seemed unnecessary are now critical for keeping the project accessible and sustainable.

Thompson, who works at Akamai and has long observed the open source landscape, sees Kubernetes as a model for community governance done right. “It exemplifies what open source should be,” he says. “Where some companies say they support open source but treat it as transactional, Kubernetes has stayed true to its community roots. Its governance model set the standard for collaboration and extensibility.”

That openness has attracted a broad ecosystem — from hobbyist developers to global enterprises. The project’s success isn’t just about code; it’s about the people and the processes that make participation possible. As Thompson explains, “It’s the perfect example of how open governance can scale. Everyone plugs into it, and everyone benefits.”

Kubernetes didn’t just define cloud native computing; it redefined how organizations approach software. Cosgrove credits timing and collaboration for its rapid success. “Kubernetes landed at exactly the right moment — after Docker made containers accessible but before anyone had a good way to manage them,” she says. “It wasn’t just Google’s backing; it was the entire industry realizing they needed a standard way to orchestrate workloads.”

Both guests agree that Kubernetes’ maturity mirrors the growing professionalism of open source as a whole. “We used to hack on open source at night for fun,” says Cosgrove. “Now many contributors are paid by their companies to participate — but that also means more accountability.” Yet, even today, most Kubernetes maintainers aren’t full-time employees. “We’re still doing this in our free time,” she notes. “I’m lucky that my company supports it, but for most people, it’s still volunteer work.”

As the ecosystem matures, inclusivity and governance remain top priorities. Cosgrove highlights the importance of a “code of conduct with teeth” — a policy that ensures respect and safety in community spaces. “We enforce it aggressively,” she says. “That’s why KubeCon feels welcoming. We don’t allow all-male panels, we bring in new speakers, and we make sure everyone has a place to fit in.”

For Thompson, this culture of inclusion is one of the community’s greatest achievements. “We’ve gone from isolated developer circles to a global collaboration movement,” he says. “People come to KubeCon not just for tech, but for belonging. It’s passion-driven — that’s why it works.”

Looking ahead, both guests see Kubernetes as foundational within CNCF, but not necessarily the end of the story. “It will always be the backbone of the cloud native ecosystem,” Cosgrove explains, “but technology evolves through abstraction. Someday something might sit on top of Kubernetes that makes you forget it’s even there — just like Linux became invisible behind everything else.”

Thompson agrees: “As long as we’re building cloud applications, Kubernetes will remain essential. It’s what made multi-cloud and vendor neutrality real.”

Even as they celebrate its success, both are candid about the human cost of maintaining such a massive project. “Oh, I am burned out,” Cosgrove admits. “We all are. You can’t keep something this big running for over a decade without feeling it.” Her remedy? Disconnecting completely. “I take a book, go to the mountains, no electronics, no signal. It’s the only way to recharge.”

Thompson finds balance through creativity. “I make music, I write code for fun — but I also step away when I can. Burnout is real, and we have to be honest about it.”

Despite the fatigue, both remain deeply committed. Their conversation reveals why Kubernetes is more than a piece of software — it’s a community that continues to shape the way the world builds and runs applications.