© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023
D. Kornilov et al.Beginning Helidonhttps://doi.org/10.1007/978-1-4842-9473-4_3

3. Configuration

Dmitry Kornilov1  , Daniel Kec1 and Dmitry Aleksandrov2
(1)
Praha, Czech Republic
(2)
Sofia, Bulgaria
 

This chapter covers the following topics.

  • Using MicroProfile Config in Helidon-based microservices

  • Understanding the concept of config sources

  • Integrating with Kubernetes config maps

  • Configuring arrays or collections

  • Using defaults, profiles, and expressions

Your microservice needs to be configurable. Why? Because any deployment depending on hard-coded values makes your service non-portable. Imagine a character from the sorcerer game. When you want to send him ...

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