Cloud: Why Must We Be Confusing?

When I was a kid learning to play Dungeons & Dragons (D&D), the concept of level was never confusing—though the authors should have seen that it very well could be. For those unfamiliar, D&D has many uses of the word level—character level, caster level, spell level, dungeon level and, increasingly, as time went on, monster level. I can almost guarantee that I missed some uses of the word level in the game, but you get the idea. In fact, if I missed your favorite, feel free to add a comment.

We used context to determine what was meant, and we clipped along without any (game) world-shattering consequences. Though some people were horribly confused.

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(Side note: I worked with D&D co-creator Gary Gygax for a while and he knew about the over-use but didn’t feel that after D&D’s surge in popularity it could be fixed. His later RPG creations did seek more clarity and less word reuse, but most RPG systems available today still have many uses of the word level.)

I am comfortable declaring that those of us who grew up on RPGs are now running vendor companies and doing analysis. Otherwise, why would we have so many uses for unique words? I mean, we no sooner got DevOps than we made a total mess about what, exactly, you meant when you said “CD”. Was it continuous deployment? Continuous delivery? Both? Similarly, we malformed continuous integration. Let’s call it CI—and then make an entire market around it really being continuous test while it is still used to refer to continuous integration, because that is not at all confusing.

But then we jumped to cloud, and spent some time being really busy trying to confuse everyone about what “cloud” actually means. Is it only public cloud, or does it include private cloud? If private cloud, does that include virtual private cloud only, or does it include cloud in a co-host or data center? Is SaaS actually cloud, or is that a completely different beast?

And that brings us to the reason I came here to write this particular blog post. We are now being barraged with “cloud” that includes Docker hosted on Kubernetes. I think of this as akin to one too many uses of the word “level”.

Kubernetes is not cloud. It offers similar infrastructure in a smaller format, but the key to Kubernetes is that it supersedes cloud. Kubernetes doesn’t care about your cloud (or lack thereof) once it has been implemented. Cloud simply becomes infrastructure-as-a-service (IaaS) when Kubernetes is deployed. This is terribly important for a variety of reasons, not the least of which is that if you drop Kubernetes onto a cloud provider, you have two sets of infrastructure to lock down. Two sets that have a lot of internet exposure—because it’s not called “public cloud” for nothing.

I do understand where referring to Docker hosted on Kubernetes as ‘cloud’ comes from; there are a ton of similarities. But Kubernetes needs a platform—hardware or virtual—to run on. And hand-waving the implications of that nested relationship is asking for trouble. And when cloud is either a thing of the past or so totally commoditized that people don’t think about it, Kubernetes or its successors will likely be the reason. So let’s take it easy re-using cloud too much.

In the short term, though, my advice is that if someone in the industry mentions cloud in their product offering or analysis, ask which use of ‘level’ they mean. Because honestly, Kubernetes, if implemented on hardware or IaaS, can be picked up and moved to whereever it is needed. And that’s not “cloud”.

Keep kicking rear. Doesn’t matter where your apps are running, it matters that you’re keeping them running and locked down. Keep it up, and call things what they are—container orchestrators are not cloud platforms, no matter which functionality they share. And to all my RPG peeps, keep having fun. There are always new adventures to be had… No matter the level.

Image: Photo by S L on Unsplash.