Logs and endpoint validation

In the next sections, we go through several useful HTTP endpoints and service logs that can be fundamental to troubleshoot issues with a Prometheus instance.

Endpoints

Checking whether Prometheus is up and running is usually very simple, as it follows the conventions most cloud-native applications use for service health: one endpoint to check whether the service is healthy and another to check whether it is ready to start handling incoming requests. For those who use or have used Kubernetes in the past, these might sound familiar; in fact, Kubernetes also uses these conventions to assess whether a container needs to be restarted (for example, if the application deadlocks and stops responding to...