Troubleshooting
As a term, troubleshooting refers to searching for the real cause of an issue and giving your best effort to tackle it as soon as possible to make a system or an application operational again. It is an important concept in DevOps. Troubleshooting can be done in a trial-and-error way where someone checks whatever occurs to them to check, but at the cost of a lot of time. Therefore, it should instead be done in a systematic way. In this chapter, we will see how we can systematically approach problems, and we will also present some practices for troubleshooting an application. Later, we'll dig deeper into the ways of troubleshooting an application in Kubernetes.
Troubleshooting can take place at various stages of development. For example, while network engineers try to solve a problem within a network, quality engineers dig into an issue to figure out what's not working for the end-to-end scenarios. That's why having good troubleshooting skills appeals...