Observability

Observability is shown in the following diagram:

Being able to monitor and debug a cluster is one of the most important points to bear in mind when designing a cluster for production. Luckily, there are a number of solutions for managing logs and metrics that have very good support for Kubernetes.

Logging

Whenever you want to know what your applications are doing, the first thing most operators will think to do is to look at the logs generated by the application.

Logs are simple to understand, and they don't require any special tools to produce, as your application probably already supports some sort of the logging already.

Out of the box, Kubernetes allows you to view and tail the logs that your application...