A random example from $dayjob: vendors like ESRI ship products that are actually a dozen spread across five sets of servers with certificates and load balancers everywhere. My customer has 7 sets of them due to acquisitions, each with dev, test, and prod instances. That’s 21 sets of a dozen servers or so. Just keeping up with OS updates and app patching is nearly a full time job!

Or just apply their official helm chart… and you’re pretty much done. You’ll also get better efficiency because the various environments will all get bin-packed together.

Is it perfect? No, but it’s better than doing to yourself!