If I'm claiming that the value dashboards bring to the table is lower than we think, you might be asking yourself the same question from the beginning of this chapter. Why are we talking about dashboards? Well, I already changed my statement from "dashboards are useless" to "there is some value in dashboards". They can serve as a registry for queries. Through dashboards, we do not need to memorize expressions that we would need to write in Prometheus. They might be a good starting point of our search for the cause of an issue before we jump into Prometheus for some deeper digging into metrics. But, there is another reason I am including dashboards into the solution.
I love big displays. It's very satisfying to enter into a room with large screens showing stuff that seem to be important. There is usually a room where operators...