Maybe you've never been in an environment where having to change internal domains is near impossible. I work at the intersection of 3 corporations within our g

Maybe you've never been in an environment where having to change internal domains is near impossible. I work at the intersection of 3 corporations within our group. We provide a sort of "internal Heroku" using Kubernetes for anyone in the group that needs it. We recently ran into the 63 character limit on domain name labels (we have to use a wildcard cert because nothing else is approved by legal). You wouldn't believe the time developers would've had to spend on fixing the domain schema across hundreds of services if we hadn't found a way out of that dilemma. We're talking thousands of internal names, some of them given our to external partners (we use a partially publicly resolvable name, but we could've exposed our DNS as well) and some used in systems long forgotten.