There are some things we don't know when we write software. For example, whether the software will be a success or not. However, some things will not be right when we write an application and put it into production; there will be failures.
Someone, at some point, said that there can be no software without bugs; at best, the software may have an unknown bug. Unfortunately, this statement is true; we could say that it's a phrase that is almost 100% accurate.
Often, the applications that we write have high test coverage; the domain business also features automated tests and all the integrations as well. Apparently, everything is fine. However, when we talk about microservices, we should add a few potential risk points, for example, network connection, errors in the load balance, and faults in the external service consumption.
Okay, our microservices, at some point, will fail, either due to a bug introduced by the development team or as a result of integration...