"You Don’t Know What You Don’t Know" - The Kubernetes Edition

5 min read
April 1, 2025
July 8, 2025
Last updated:
November 21, 2025
Neil Cresswell
Neil Cresswell
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Portainer CEO
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Key takeaways

Donald Rumsfeld might not have had Kubernetes in mind when he gave his now-famous “unknown unknowns” speech, but he could’ve. Because Kubernetes is, without a doubt, one of the most dangerous technologies when it comes to this exact problem.

Here’s why.

Kubernetes is brilliantly extensible and insanely powerful but also unforgiving. If you don’t know that something exists (say, Role-Based Access Control, OPA policies, or resource quotas), you probably won’t implement it. And Kubernetes won’t tap you on the shoulder to remind you. It doesn’t gently nudge you toward best practices. It simply lets you operate in the dark, that is, of course, until something breaks or, worse, someone breaks in.

And that’s the real kicker: in Kubernetes, the absence of knowledge isn't just a limitation. It’s a liability.

This creates a vicious circle. You can’t secure what you don’t know exists. You can’t govern what you don’t even know needs governing. And for newcomers (or even seasoned ops teams venturing deeper into Kube’s ecosystem), there’s often no breadcrumb trail leading you to the right questions. Before you can learn how to do something, you first have to learn that it’s even a thing.

This is where Kubernetes becomes especially dangerous. Not because it’s insecure by default, but because it’s silent by default.

At Portainer, we believe this is backwards. Security, governance, and operational discipline shouldn’t be optional. They should be obvious. Discoverability shouldn’t rely on tribal knowledge, Slack threads, or deep Reddit dives. It should be front and center.

That’s exactly what Portainer does.

Our platform strips away the black box and replaces it with a clear, visual representation of everything that’s possible inside your Kubernetes environment. RBAC? There. Quotas? Right in front of you. Governance policies? Easy to see, easy to set. No YAML spelunking required.

It’s not about dumbing things down, no no, it’s about making the power of Kubernetes accessible. By surfacing what's available and providing the tools to action it, Portainer helps teams break the cycle of “you don’t know what you don’t know.” It transforms Kubernetes from something arcane and opaque into something understandable, learnable, and critically, manageable.

So if Kubernetes feels like you’re forever peering into the unknown, it might be time to rethink the interface between you and your cluster. Because in the world of Kubernetes, the biggest risks aren’t the things you know you haven’t done, they’re the ones you never even realized you should.

Infrastructure Moves Fast. Stay Ahead.

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Conclusion

Neil Cresswell
Portainer CEO
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Neil Cresswell is the co-founder and CEO of Portainer, a popular platform that simplifies container management for Docker, Kubernetes, and edge environments. A veteran of over 25 years in IT, he began his career with 12 years at IBM before leading VMware consulting at ViFX across Asia-Pacific and serving as CEO for cloud service providers. Frustrated by the lack of usable tooling for “containers as a service,” he created Portainer to make container technology accessible to everyone. Under his leadership, Portainer has grown from an open-source UI into an enterprise-ready platform used globally.

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