So, I work as a sysadmin junior (6 months and going), and in the past few months, I learned what my boss warned me about - Devs don't understand us admins, and we don't understand the devs.

We have this huge client who is about to migrate to our company (We do mostly server managment/Housing/Renting), and I am so gald I don't have to work on the migration myself!

Just hearing what the company devs say makes me facepalm: No, it won't work. It cannot work on just 3 machines (They use like... 20 in total), no, we won't get rid of our docker swarm, that's essential (Doing the absolute minimum in their infrastructure, just a fancy buzzword to lure people on. Though they've spent like 2 years developing the app that uses it, so they my not want to give it up).

I kid you not, once, they replied to an email that contained the phrase "To be afraid of/worried about" something during the migration, that something could break, not work, be unstable. 7 times.

Might not sound as bad, but it was a rather short mail, and when they're so afraid of everything, its kinda hard to cooperate with them.

My colleague literally spent this entire week mapping out /their/ infrastructure, because they were unable to provide us with the description themselves.

And as a cherry on top, they sent us a "graph" of relationships of all the parts of their infrastructure that was this jumbled mess of rectangles and arrows. Oh, and half of all the machines were not even in the graph at all! Stating that "We also have all this, but I really don't know how to ilustracte the interactions anymore"

Why do companies like that exist? If you build an infrastructure yourself, shouldn't at least someone know exactly how it works?