How to Achieve Centralized Logging Configuration with Go Logrus?

Centralized Logging Configuration with Go logrus

In a multi-source application using Go logrus for logging, you may encounter the need to configure logging settings centrally. Logrus provides various configuration functions, but configuring them in each file can be tedious. Here are some strategies to enable centralized configuration:

Global Logger Modification

Logrus's functions like SetOutput() can be invoked directly on the global logger by importing Logrus as log. These modifications will apply to all files importing Logrus.

Package Global Logger

You can create a package-global logger variable to modify its settings. While this can work for individual packages, it may not be suitable in a multi-package application.

Custom Wrapper

A more flexible approach is to create a custom wrapper with its own logger variable. This allows you to define custom functions that wrap around Logrus's functions.

In the example provided in the answer, a custom function Info() is created, which wraps around Logrus's Info() function. This allows for the addition of context-specific information, such as a connection address or HTTP request data.

This centralized configuration approach enables you to make logging level changes in one place, ensuring that all components of the application are consistently logged.

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