What is the most common approach to configure a backend app?

• viper

  77 27,405 9.1 Go

  Go configuration with fangs

  I guess most people are using https://github.com/spf13/viper but I don't know if I should read everything from

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• kelseyhightower/envconfig

  15 5,086 0.0 Go

  Golang library for managing configuration data from environment variables

  - Having one way of configuring the app is excellent. You can either prefer environment variables, a file, or flags. You can do what Viper does by reading the file and unmarshalling it. The built-in flag package is enough for your flag-based config needs. If you want to prefer environment variables, I prefer https://github.com/kelseyhightower/envconfig

• ko

  29 7,697 9.3 Go

  Build and deploy Go applications

  

  - There're many resources available about containerizing an application, but I suggest you buildpacks or ko, which doesn't require writing a Dockerfile

• ff

  7 1,378 5.1 Go

  Flags-first package for configuration

  We have been using https://github.com/peterbourgon/ff for long time now. It combines the standard flags with the environment variables nicely.

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